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Nantucket County, Massachusetts · Ocean

Can you swim at 40th Pole today?

5.0FAIR

Fair · 5.0

Cold air temperature (4.5°C)

Updated

Heads up

  • Cold air temperature (4.5°C)
  • Cold water (12.1°C)

Swim brief

Conditions are mixed right now: 5.0 out of 10. Water is 54 °F, measured at NDBC buoy NTKM3 (8449130 - Nantucket Island, MA) (NTKM3). Small waves around 1.0 ft, calm wind at 2 mph. Air 40 °F, UV 0 (low).

Written from the readings below. Not a safety guarantee: follow lifeguards and posted signs.

The readings

  • Water temperature
    54 °F
    NDBC buoy NTKM3 (8449130 - Nantucket Island, MA) (NTKM3) (measured) · fetched
    Fair
  • Water quality
    No reading
    Advisories are published by the state beach program (see below)
    –
  • Waves
    1.0 ft
    NOAA NDBC Buoy 44020 · fetched
    Glass
  • Wind
    2 mph
    Open-Meteo Forecast (model) · fetched
    Glass
  • Air temperature
    40 °F
    Open-Meteo Forecast (model) · fetched
    Poor
  • UV index
    UV 0 · low
    Open-Meteo Forecast (model) · fetched
    –
  • Thunderstorms
    No reading
    No source reported a value
    –
  • Weather alerts
    No reading
    Weather provider does not report alerts
    Glass

Today

No hourly forecast yet

Hourly forecasts are stored for priority spots first; this one has not been fetched yet.

Questions about 40th Pole

Is it safe to swim at 40th Pole today?

Swimmable can't tell you a spot is safe; conditions change fast and no score is a guarantee. Right now its Swim Score is 5.0 out of 10 (Fair), summarised from public weather, marine and water data. Check whether lifeguards are on duty and follow posted signs and flags.

What is the water temperature at 40th Pole?

The latest reading is 54 °F. The page shows its source and when it was fetched.

Is the water clean at 40th Pole?

This beach is monitored under the U.S. BEACH Act. Advisories and closures are published by the state or local program listed in EPA BEACON; check it before you swim.

How is the Swim Score calculated?

The score out of 10 combines water temperature, air temperature, UV, wind and weather, waves and weather alerts from public sources such as NOAA, NDBC and Open-Meteo. Missing readings are left out and shown as missing, never guessed.