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Whatcom County, Washington · Bay

Can you swim at South Semiahmoo Bay today?

6.3FAIR

Fair · 6.3

Cold air temperature (7.3°C)

Updated

Heads up

  • Cold air temperature (7.3°C)
  • Cold water (11.9°C)

Swim brief

Conditions are mixed right now: 6.3 out of 10. Water is 53 °F, a modelled sea-surface estimate. Small waves around 0.8 ft, light wind at 5 mph. Air 45 °F, UV 0 (low).

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

The readings

  • Water temperature
    53 °F
    Open-Meteo Marine (model) · fetched
    Fair
  • Water quality
    No reading
    Advisories are published by the state beach program (see below)
    –
  • Waves
    0.8 ft
    Open-Meteo Marine (model) · fetched
    Good
  • Wind
    5 mph
    Open-Meteo Forecast (model) · fetched
    Good
  • Air temperature
    45 °F
    Open-Meteo Forecast (model) · fetched
    Fair
  • 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 South Semiahmoo Bay

Is it safe to swim at South Semiahmoo Bay 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 6.3 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 South Semiahmoo Bay?

The latest reading is 53 °F (a modelled sea-surface estimate, not a thermometer reading). The page shows its source and when it was fetched.

Is the water clean at South Semiahmoo Bay?

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.