Ofu Beach, National Park of American Samoa – white sand, a coral reef and jagged green volcanic peaks
American Samoa · South Pacific

Ofu Beach Sea Temperature Today

Sea
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Air
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Beach day
⁦23–28°C⁩

The sea temperature at American Samoa (Ofu Beach) today is 27 °C / 81 °F – refreshing to pleasantly warm water, ideal for most people. The usual October average is 28.2 °C / 83 °F. Over the last 30 days the sea temperature has held at around 27 °C. Swimmable all year – the sea averages 27 °C or more in every month. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.

Last updated ·

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). Swimmable all year – the sea averages 27 °C or more in every month.

Ofu Beach, National Park of American Samoa

The sea temperature at American Samoa (Ofu Beach) today is 27 °C (81 °F) – refreshing to pleasantly warm water, ideal for most people. The usual October average is 28.2 °C. Over the last 30 days the sea temperature has held at around 27 °C. Swimmable all year – the sea averages 27 °C or more in every month. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.


Sea temperature by month – Ofu Beach
MonthMinAvgMax
January29.0°C / 84.2°F29.4°C / 85.0°F29.8°C / 85.6°F
February28.9°C / 84.1°F29.3°C / 84.8°F29.7°C / 85.4°F
March29.2°C / 84.5°F29.6°C / 85.2°F30.1°C / 86.2°F
April29.2°C / 84.6°F29.7°C / 85.4°F30.2°C / 86.4°F
May29.1°C / 84.3°F29.3°C / 84.8°F30.0°C / 85.9°F
June28.6°C / 83.5°F28.8°C / 83.9°F29.1°C / 84.3°F
July28.0°C / 82.5°F28.2°C / 82.8°F28.4°C / 83.2°F
August27.5°C / 81.5°F27.9°C / 82.2°F28.4°C / 83.1°F
September27.6°C / 81.6°F27.9°C / 82.3°F28.3°C / 83.0°F
October27.9°C / 82.2°F28.2°C / 82.7°F28.4°C / 83.1°F
November28.4°C / 83.1°F28.6°C / 83.4°F28.7°C / 83.7°F
December28.9°C / 83.9°F29.1°C / 84.4°F29.4°C / 84.9°F

Air temperature by month – Ofu Beach
MonthMinAvgMax
January27.0°C / 80.5°F27.3°C / 81.1°F27.5°C / 81.5°F
February26.8°C / 80.3°F27.1°C / 80.8°F27.3°C / 81.1°F
March27.2°C / 80.9°F27.5°C / 81.5°F27.7°C / 81.9°F
April27.2°C / 81.0°F27.6°C / 81.6°F27.8°C / 82.0°F
May27.1°C / 80.9°F27.4°C / 81.4°F27.6°C / 81.6°F
June26.7°C / 80.0°F27.0°C / 80.5°F27.1°C / 80.9°F
July26.3°C / 79.3°F26.5°C / 79.8°F26.6°C / 80.0°F
August26.0°C / 78.8°F26.3°C / 79.3°F26.4°C / 79.6°F
September26.1°C / 78.9°F26.3°C / 79.4°F26.5°C / 79.6°F
October26.3°C / 79.3°F26.6°C / 79.8°F26.7°C / 80.0°F
November26.5°C / 79.6°F26.8°C / 80.2°F26.9°C / 80.5°F
December26.7°C / 80.0°F27.0°C / 80.7°F27.2°C / 81.0°F

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes. (Copernicus ERA5)

Ofu Beach holidays

Ofu Beach is a strip of white sand on the south coast of Ofu, a small volcanic island in the Manu'a group of American Samoa, about 100 km east of Tutuila and Pago Pago. The beach and the coral reef in front of it are part of the National Park of American Samoa, and forested ridges rise steeply behind the sand.

Beaches

Ofu Beach runs for several kilometres along the island's south shore, protected by a fringing reef with a shallow lagoon between the reef crest and the sand. The national park recommends snorkelling at mid-tide; there are no lifeguards or facilities, currents can be strong near the reef edge and in the channel by the bridge to Olosega, so ask locally about conditions, and reef shoes help on the coral rubble. The sea temperature on this page is measured in the lagoon off Ofu Beach.

Things to do

Snorkelling in the lagoon shows corals, giant clams and reef fish, and scientists study the corals in Ofu's back-reef pools because they survive unusually warm water. A bridge connects Ofu with the neighbouring island of Olosega, and walks lead along the coast road and into the forest. In the villages, life follows fa'a Samoa, the Samoan way: Sunday is a quiet day of church and rest, visitors dress modestly, and it is polite to ask before using a village beach. Leave coral and shells in place; traditional subsistence fishing is permitted only under specific park and village rules.

Weather and best time to visit

At Ofu Beach the sea stays above 27 °C / 81 °F all year, even in the coolest month.

Ofu is warm and humid all year. Rain is generally heavier in the southern summer, which includes the tropical cyclone season, while June to September is usually cooler and relatively drier, with south-east trade winds. Showers can come at any time of year, and the sun is strong, so shade and water are important on a beach without facilities.

Hotels and where to stay

Accommodation on Ofu is very limited, with one small lodge near the airstrip, so arrange lodging in advance and confirm any homestay directly. The island has only small shops, so bring essential supplies from Tutuila, and you may need to stay on Tutuila between connections.

Airport and getting there

Pago Pago International Airport (PPG) on Tutuila is reached via Honolulu or Samoa; check current schedules and the departure airport in Samoa. From Tutuila, small planes fly to Ofu's airstrip, next to the beach, and a government ferry sails to Manu'a, but both run infrequently and schedules change, so confirm your connection before booking. American Samoa has its own entry rules, separate from the rest of the United States; check them before travelling.

Frequently asked questions

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

Today, October 29, the sea at Ofu Beach is 27 °C (81 °F) – refreshing to pleasantly warm water, ideal for most people. The usual October average is 28.2 °C / 83 °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 °C / 55 °F only for cold-water swimmers, 13–18 °C / 55–64 °F icy, 18–23 °C / 64–73 °F cold to refreshing, 23–28 °C / 73–82 °F refreshing to pleasantly warm and above 28 °C / 82 °F as warm as a bath. Right now the sea at Ofu Beach is 27 °C / 81 °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 °C / 82 °F – refreshing to pleasantly warm water, ideal for most people.

When is the sea warmest at Ofu Beach?

In April, at 29.7 °C / 85 °F on average. The coolest month is August at 27.9 °C / 82 °F – still above the 18 °C / 64 °F swimming line, so there is no off-season for swimming.