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Tinian County, Northern Mariana Islands · Bay

Can you swim at Harbor today?

6.8FAIR

Fair · 6.8

Unstable weather – thunderstorms possible

Updated

Heads up

  • Unstable weather – thunderstorms possible

Swim brief

Conditions are mixed right now: 6.8 out of 10. Water is 28.7 °C, a modelled sea-surface estimate. Rough waves around 1.5 m, moderate wind at 28 km/h. Air 30 °C, UV 5 (moderate). Best window in the next 24 hours: 11 am to 6 pm, averaging 7.7.

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

The readings

  • Water temperature
    28.7 °C
    Open-Meteo Marine (model) · fetched
    Good
  • Water quality
    No reading
    Advisories are published by the state beach program (see below)
    –
  • Waves
    1.5 m
    Open-Meteo Marine (model) · fetched
    Good
  • Wind
    28 km/h
    Open-Meteo Forecast (model) · fetched
    Fair
  • Air temperature
    30 °C
    Open-Meteo Forecast (model) · fetched
    Glass
  • UV index
    UV 5 · moderate
    Open-Meteo Forecast (model) · fetched
    Fair
  • Thunderstorms
    No reading
    No source reported a value
    –
  • Weather alerts
    No reading
    Weather provider does not report alerts
    Fair

Today

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Questions about Harbor

Is it safe to swim at Harbor 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 6.8 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 Harbor?

The latest reading is 28.7 °C (a modelled sea-surface estimate, not a thermometer reading). The page shows its source and when it was fetched.

Is the water clean at Harbor?

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.