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NOAA Tides and Currents

NOAA tides and currents: water levels, tide predictions, currents, met data, flooding, sun and moon

Connector by RyanCardin15 · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)Remote (HTTP)★ 6
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Works with Claude Code, VS Code, Codex, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/ryancardin15-noaa-tides-and-currents-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Remote endpoint

  • https://perigeetides.com/mcp Remote (HTTP)

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NOAA tides and currents: water levels, tide predictions, currents, met data, flooding, sun and moon

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What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools
26 read · 0 write · 0 deleteRead-only
Secrets
None asked for
Install scripts
None found
Runs as
Node.js package

Tools by what they do 26

From the running server's own tool list (tools/list) on Oct 25, 2026.

Read 26 · Look things up without changing anything.

  • astro_get_moon_phase
  • astro_get_next_moon_phase
  • astro_get_next_sun_event
  • astro_get_sun_position
  • astro_get_sun_times
  • noaa_find_nearest_stations
  • noaa_get_current_predictions
  • noaa_get_currents
  • noaa_get_extreme_water_levels
  • noaa_get_harmonic_constituents
  • noaa_get_high_tide_flooding
  • noaa_get_meteorological_data
Show 14 more tools
  • noaa_get_prediction_offsets
  • noaa_get_reference_guide
  • noaa_get_sea_level_rise_projections
  • noaa_get_sea_level_trends
  • noaa_get_station_datums
  • noaa_get_station_info
  • noaa_get_tide_predictions
  • noaa_get_top_ten_water_levels
  • noaa_get_water_level_summaries
  • noaa_get_water_levels
  • noaa_search_stations
  • nws_get_marine_forecast
  • nws_get_wind_forecast
  • perigee_whoami

Network hosts it talks to 4

  • api.tidesandcurrents.noaa.gov · found in code
  • api.weather.gov · found in code
  • github.com · found in code
  • perigeetides.com · found in remote endpoint, install command, code

Tools (26)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • astro_get_moon_phaseGet Moon Phaseread-only

    Get the moon phase for a date (or each day of a date range if end_date is given): phase name (New Moon, Waxing Crescent, ...), illuminated fraction, age in days within the 29.53-day cycle, distance (km), apparent diameter (degrees), and waxing/waning. Tide context: spring tides (largest range) occur just after new and full moons; neap tides after quarter moons. Computed locally — no NOAA data involved.

  • astro_get_next_moon_phaseGet Next Moon Phase Occurrenceread-only

    Find the date(s) of the next occurrence(s) of a principal moon phase (New Moon, First Quarter, Full Moon, Last Quarter) from a starting date. Use for: "when is the next full moon?", planning around spring tides (which follow new/full moons by 1–2 days).

  • astro_get_next_sun_eventGet Next Sun Eventread-only

    Find the next occurrence(s) of a sun event (sunrise, sunset, dawn, dusk, solarNoon, night, nightEnd, goldenHourStart, goldenHourEnd, nauticalDawn, nauticalDusk, astronomicalDawn, astronomicalDusk) at a location from a starting date. Use for: "when is sunset today?", planning golden-hour photography or dawn fishing around tide windows.

  • astro_get_sun_positionGet Sun Positionread-only

    Get the sun's position for a date, time, and location: azimuth (degrees clockwise from north as rendered here), altitude above the horizon (degrees), plus approximate declination and right ascension. Use for: shadow/lighting analysis, solar exposure. Computed locally with suncalc; declination/RA are approximate.

  • astro_get_sun_timesGet Sun Timesread-only

    Get sunrise, sunset, solar noon, dawn/dusk (civil), nautical dawn/dusk, astronomical dawn/dusk, golden hour, and day length for a location and date (or each day of a range if end_date is given). Times are ISO UTC unless an IANA timezone is provided. At high latitudes some events may be null (e.g. no astronomical night in summer). Computed locally.

  • noaa_find_nearest_stationsFind Nearest NOAA Stationsread-only

    Find the NOAA stations closest to a latitude/longitude point, sorted by distance. Use this to answer "what's the tide station near <place>?" — geocode the place to coordinates first, then call this. Filter by type to match the data you need (e.g. type "tidepredictions" before calling noaa_get_tide_predictions, "currents" before noaa_get_currents — current stations have different IDs than water-level stations). Distance is computed great-circle (Haversine) and reported in both km and miles. (NOAA's API has no native coordinate search; this tool maintains a cached station directory.)

  • noaa_get_current_predictionsGet Current Predictionsread-only

    Get predicted tidal currents for a NOAA current prediction station. interval="max_slack" (recommended for navigation) returns the tidal-current events — maximum flood, maximum ebb, and slack water times — up to 1 year per request. Other intervals (h, 1, 6, 10, 30, 60 minutes) return a velocity time series — up to 31 days. UNITS WARNING: english = knots; metric = cm/s. vel_type="speed_dir" returns Speed/Direction pairs; "default" returns velocities projected on the flood/ebb axis (Velocity_Major: positive = flood direction, negative = ebb) with meanFloodDir/meanEbbDir. Subordinate (type "S")…

  • noaa_get_currentsGet Observed Currentsread-only

    Get observed current speed and direction from a NOAA current meter station. Current stations use alphanumeric IDs (e.g. "cb0102" Chesapeake, "bh0101" Boston Harbor) — NOT the 7-digit water-level station IDs. Find them with noaa_search_stations (type "currents") or noaa_find_nearest_stations. UNITS WARNING: english = knots, but metric = cm/s (centimeters/second, not m/s). Returns per record: t (time), s (speed), d (direction, degrees true), b (bin number). Max 7 days per request. Set expand_detailed=true to include per-beam echo intensity and correlation diagnostics.

  • noaa_get_extreme_water_levelsGet Extreme Water Levelsread-only

    Get NOAA's extreme water level exceedance statistics for a station: the annual exceedance probability levels (e.g. the 1%-annual-chance "100-year" level) and historical extreme events, computed from the station's verified record. Use for flood risk questions ("what water level has a 1% chance per year at X?"). Levels are relative to the station's datums for the 1983–2001 epoch. Only long-record stations have this product.

  • noaa_get_harmonic_constituentsGet Harmonic Constituentsread-only

    Get the harmonic constituents NOAA uses to compute tide or current predictions at a station — the amplitude, phase, and angular speed of each tidal constituent (M2, S2, N2, K1, O1, ...). For water-level stations: amplitude (feet/meters), phase_GMT and phase_local (degrees), speed (degrees/hour). For current stations (alphanumeric IDs) constituents are current ellipses (major/minor amplitudes and phases per depth bin — pass bin to filter). Use for: building custom tide computations, checking a station's dominant constituents (M2 amplitude indicates semidiurnal range), verifying whether a stat…

  • noaa_get_high_tide_floodingGet High Tide Flooding Dataread-only

    Get NOAA high tide flooding (HTF, "nuisance"/"sunny day" flooding) statistics for a station. Reports: - daily: flood occurrence per day (REQUIRES start_date and end_date, YYYYMMDD) - monthly / seasonal / annual: counts of minor/moderate/major flood days per period (filter with year/month/season_months, or range = last N periods) - met_year_annual: counts by meteorological year (May–April) - annual_outlook: NOAA's projected flood-day outlook for the coming met year - projections: decadal flood-day projections through 2100 (filter by decade, flood_threshold) - record_days: record flood-day coun…

  • noaa_get_meteorological_dataGet Meteorological & Sensor Dataread-only

    Get observed meteorological/oceanographic sensor data from a NOAA station. Products: air_temperature, water_temperature, wind (speed/gust/direction), air_pressure, air_gap (bridge clearance to water surface), conductivity, visibility, humidity, salinity. Units by system: temps °F/°C; wind knots (english) or m/s (metric); air_gap feet/meters; visibility nautical miles/kilometers; air_pressure always millibars; salinity always PSU. Max span ~31 days per request; interval "6" (6-minute, default) or "h" (hourly). Not every station has every sensor — check with noaa_get_station_info (expand ["se…

  • noaa_get_prediction_offsetsGet Prediction Offsets (Subordinate Stations)read-only

    Get the offsets a subordinate (type "S") prediction station applies to its reference station's predictions. kind "tide": returns refStationId, time offsets for high/low tide (minutes), height offsets for high/low tide, and whether the height adjustment is a ratio (multiplied) or fixed value — this is how NOAA derives subordinate-station tide times from the reference harmonic station. kind "current": returns refStationId/bin, mean flood/ebb directions, and time adjustments (minutes) for max flood, slack-before-ebb, max ebb, slack-before-flood plus amplitude ratios. Note: current prediction of…

  • noaa_get_reference_guideGet NOAA API Reference Guideread-only

    Get curated reference documentation for NOAA CO-OPS concepts and parameters. Topics: - products: Every NOAA CO-OPS data product and which tool serves it - datums: Vertical datums (MLLW, MSL, IGLD...) and station applicability - units: What english vs metric means per measurement (incl. cm/s currents) - time_zones: gmt / lst / lst_ldt semantics and restrictions - intervals: Valid interval values per product family - station_types: Station type filters and station ID formats - data_limits: Maximum date-range span per product - quality_flags: Data quality fields (v/s/f/q), flag letters, HH/H/L/L…

  • noaa_get_sea_level_rise_projectionsGet Sea Level Rise Projectionsread-only

    Get NOAA's Interagency Sea Level Rise Scenario projections for a station (from the 2022 technical report): projected relative sea level (meters or feet, see units field) per decade through 2150 under the chosen scenario. Scenarios: low, intermediate-low, intermediate, intermediate-high, high, extreme, or all. Use for coastal planning questions ("how much sea level rise is projected at X by 2050?"). Pair with noaa_get_sea_level_trends (observed) and noaa_get_high_tide_flooding (flooding impact).

Show 11 more tools
  • noaa_get_sea_level_trendsGet Relative Sea Level Trendsread-only

    Get the long-term relative sea level trend at a NOAA station: trend and error (reported by NOAA in mm/yr or inches/decade — the payload's trendUnits field says which), the observation period (startDate/endDate), and seasonal amplitude. Relative sea level combines ocean rise AND local land movement (subsidence/uplift), so trends vary widely by station (e.g. strongly positive on the Gulf Coast, negative in Alaska). Requires a station with a long water-level record; omit station to list all (affil "US" or "Global" filters the network).

  • noaa_get_station_datumsGet Station Datumsread-only

    Get the accepted tidal datum values for a station: the elevations of MHHW, MHW, MTL, MSL, DTL, MLW, MLLW, STND, NAVD88 (where computed), plus GT (great diurnal range), MN (mean range), LAT/HAT (lowest/highest astronomical tide), and the station's historical extreme min/max water levels with dates. epoch "current" returns the present National Tidal Datum Epoch (1983–2001) values; "superseded" returns the prior epoch's values (useful for historical comparisons — not all stations have one). All values share one reference zero (the station datum), so datum-to-datum conversion is subtraction: hei…

  • noaa_get_station_infoGet Station Inforead-only

    Get a NOAA station's full metadata record: location, state, time zone, tide type, Great Lakes flag, capability flags, and links to available sub-resources. Optionally expand sub-resources inline via the "expand" list: - details (established/removed dates), sensors (installed instruments + elevations), floodlevels (NOS/NWS minor/moderate/major flood thresholds), benchmarks, products (available data page links), notices, disclaimers — for water-level stations - bins (ADCP depth bins), deployments — for current stations (alphanumeric IDs) Use this before requesting data to confirm what the stat…

  • noaa_get_tide_predictionsGet Tide Predictionsread-only

    Get NOAA harmonic tide predictions (future or past) for a station. interval="hilo" (recommended for "when is high/low tide") returns the daily tide events with type H/L — up to 10 years per request. Other intervals (h, 1, 5, 6, 10, 15, 30, 60 minutes) return a height time series — up to 1 year per request. Heights are relative to the requested datum (MLLW default). Notes: - Great Lakes stations have NO tide predictions (lake levels are not tidal). - Subordinate stations (type "S") only support interval=hilo; use the station's reference (R) station for interval series. - Predictions are astro…

  • noaa_get_top_ten_water_levelsGet Top Ten / Peak Water Levelsread-only

    Get a station's highest recorded water levels: analysis "toptenwaterlevels" returns the ten highest events on record (with date, height, causal event name like "Great New England Hurricane", and category); "peakwaterlevels" returns peak event records (optionally filtered by year). Heights are relative to the requested datum (MHHW is typical for flood comparisons). Use for "what's the worst flooding ever recorded at X?".

  • noaa_get_water_level_summariesGet Water Level Summaries (High/Low, Daily, Monthly)read-only

    Get verified summary water-level products from a NOAA station: - high_low: each day's observed highs/lows with ty = HH (higher high), H, L, LL (lower low). Max 1 year per request. - daily_mean: daily mean levels — GREAT LAKES STATIONS ONLY; NOAA requires local standard time, which this tool applies automatically. Max 10 years. - daily_max_min: daily maxima/minima from hourly and 6-minute data with completeness percentages. Max 10 years. - monthly_mean: monthly tidal datum means (columns MHHW, MHW, MSL, MTL, MLW, MLLW, DTL, GT, MN, DHQ, DLQ, HWI, LWI, highest, lowest). Max 200 years — ideal fo…

  • noaa_get_water_levelsGet Observed Water Levelsread-only

    Get observed water levels from a NOAA tide station as a time series. Choose the interval: "6" = standard 6-minute observations (preliminary or verified, max 31 days per request), "1" = 1-minute preliminary data (max 4 days), "hourly" = verified hourly heights (max 1 year). Heights are relative to the requested datum (MLLW by default — the US nautical chart zero). Returns per record: t (timestamp in requested time zone), v (height), s (sigma), f (quality flags, decoded in output), q (p=preliminary, v=verified). Recent data is preliminary; verification takes days to weeks. Use for: "what is t…

  • noaa_search_stationsSearch NOAA Stationsread-only

    Search the NOAA CO-OPS station directory by capability type, name, and/or state. Filter with: - type: what the station does (waterlevels, tidepredictions, currents, currentpredictions, met, ...) — pick the type matching the data you plan to request. - name: case-insensitive substring ("San Francisco", "Boston"). - state: two-letter code ("CA", "MA"). Returns id, name, location, tide type, Great Lakes flag, and for prediction stations whether they are reference (R, harmonic) or subordinate (S, offset-based — hilo predictions only). Results are paginated (limit/offset). For proximity search by…

  • nws_get_marine_forecastGet Marine Text Forecast (NWS)read-only

    Get the official NWS Coastal Waters Forecast (CWF) narrative for the marine zone covering a latitude/longitude — day-part wind/seas text ("SE winds 10 to 15 kt... Bay waters choppy"), including Small Craft Advisories. The point must lie in (or very near) US coastal waters; CWF zones extend roughly 20-60 NM offshore. Returns the zone's segment from the latest bulletin plus the office-wide synopsis. For numeric hourly wind values use nws_get_wind_forecast; for observed wind at a NOAA station use noaa_get_meteorological_data (product "wind").

  • nws_get_wind_forecastGet Wind Forecast (NWS)read-only

    Get the NWS hourly wind FORECAST (speed, gust, direction — plus wave height where the grid carries it) for a latitude/longitude. Data comes from the NWS forecast grid (api.weather.gov gridpoints — numeric NDFD values, not display strings). Horizon is up to ~7 days (156 hours), starting at the current hour. US and territories only. Wave height appears for marine/nearshore gridpoints; swell/period fields are typically only populated for open-ocean points. Units: english = knots and feet (default), metric = m/s and meters. Direction is degrees true, the direction the wind blows FROM. This is F…

  • perigee_whoamiWhich Perigee account is this connection using?read-only

    Show how this MCP connection is authenticated: the Perigee account it is linked to (if any), how it signed in (OAuth connector or API key), its rate-limit tier, and the requests-per-minute limit. Use when the user asks which account they're connected as, why they're rate limited, or whether their sign-in worked.

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    Last commit
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    Last release
    Sep 29, 2026 (29 days ago)

    From GitHub (fetched Oct 24, 2026).

    Details

    Registry name
    io.github.RyanCardin15/noaa-tides-and-currents-mcp
    Version
    2.1.0
    Auth
    Auth not stated
    Packages
    npm @ryancardin/noaa-tides-currents-mcp-server
    License
    MIT
    Repository
    github.com/RyanCardin15/Perigee-Tides
    Website
    perigeetides.com/developers
    First seen
    Oct 24, 2026
    Last checked
    Oct 24, 2026
    Source
    Official MCP Registrygithub-graphql
    Cite this page

    NOAA Tides and Currents MCP server. Agent Mart. https://agentmart.dev/connectors/ryancardin15-noaa-tides-and-currents-mcp (last updated 2026-10-24)