Ofu Beach sea temperature today: 28°C – beach water temperature, Ofu Beach, American Samoa
American Samoa · South Pacific
Ofu Beach
Sea
28.0°C82.4°F
Air
UV
Bathtub
Above ⁦28°C⁩

Last updated ·

Today, September 14, the sea temperature at Ofu Beach is 28 °C (82 °F). That matches the usual average of 27.9 °C in September. Comfortable for swimming year-round.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in April (29.7°C). Coldest in August (27.9°C). Comfortable for swimming year-round.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January29.0°C29.4°C29.8°C27.0°C27.3°C27.5°C
February28.9°C29.3°C29.7°C26.8°C27.1°C27.3°C
March29.1°C29.6°C30.1°C27.2°C27.5°C27.7°C
April29.2°C29.7°C30.2°C27.2°C27.6°C27.8°C
May29.1°C29.3°C29.9°C27.1°C27.4°C27.6°C
June28.6°C28.8°C29.1°C26.7°C27.0°C27.1°C
July28.0°C28.2°C28.4°C26.3°C26.5°C26.6°C
August27.5°C27.9°C28.4°C26.0°C26.3°C26.4°C
September27.6°C27.9°C28.3°C26.1°C26.3°C26.5°C
October27.9°C28.2°C28.4°C26.3°C26.6°C26.7°C
November28.4°C28.6°C28.7°C26.5°C26.8°C26.9°C
December28.9°C29.1°C29.4°C26.7°C27.0°C27.2°C

About Ofu Beach

The National Park of American Samoa – the only US federal reserve south of the equator, declared in 1988 – wraps Ofu Beach, a six-kilometre powder-white strand backed by the 494-metre basalt cliffs of Mount Tumutumu on the Manuʻa Islands. A single-lane bridge across the channel reaches the equally empty beach on neighbouring Olosega Island, with the barrier reef visible from the sand at both. Under twenty thousand visitors reach the territory each year; the sea stays at 27–29 °C81–84 °F year-round, drier from May to October.

Frequently asked questions

Is the sea at Ofu Beach warm enough for swimming today?

Today, September 14, the sea at Ofu Beach is 28 °C (82 °F)82 °F (28 °C) – bathtub-warm. The usual September average is 27.9 °C82 °F.

What is a good sea temperature for swimming?

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Ofu Beach is 28 °C82 °F.

Can you swim at Ofu Beach in August?

Yes – the sea at Ofu Beach (South Pacific, American Samoa) stays swimmable all year. August is the coolest month, averaging 27.9 °C82 °F – ideal for swimming for most people; the warmest is April at 29.7 °C85 °F.

When is the sea warmest at Ofu Beach?

In April, at 29.7 °C85 °F on average. The coolest month is August at 27.9 °C82 °F – still above the 18 °C64 °F swimming line, so there is no off-season for swimming.