Climate Insights for Ofu Airport

Ofu County, Manu'a District, American Samoa

Hottest
April
28°C peak
Coldest
September
26°C low
Wettest
February
431mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Ofu Airport is hot. The average annual temperature is 27°C and approximately 2619mm of precipitation falls per year. Ofu Airport receives a notable amount of rainfall throughout the year, including during its driest month. Ofu Airport is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: April, March, January. The coldest months are September, August, July, when temperatures can drop to 26°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 28° Average: 27° Min: 26° Feb Max: 28° Average: 27° Min: 26° Mar Max: 28° Average: 28° Min: 27° Apr Max: 28° Average: 28° Min: 27° May Max: 28° Average: 27° Min: 27° Jun Max: 28° Average: 27° Min: 26° Jul Max: 27° Average: 27° Min: 26° Aug Max: 27° Average: 26° Min: 26° Sep Max: 27° Average: 26° Min: 26° Oct Max: 27° Average: 27° Min: 26° Nov Max: 28° Average: 27° Min: 26° Dec Max: 28° Average: 27° Min: 26°
Max
Average
Min

Ofu Airport has relatively stable temperatures year-round, staying within a 2°C range. The warmest month is April, when average highs reach 28°C and the mean temperature sits around 28°C. September is the coolest month, with minimum temperatures around 26°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 294mm Feb Precipitation: 431mm Mar Precipitation: 185mm Apr Precipitation: 252mm May Precipitation: 229mm Jun Precipitation: 135mm Jul Precipitation: 125mm Aug Precipitation: 100mm Sep Precipitation: 99mm Oct Precipitation: 196mm Nov Precipitation: 243mm Dec Precipitation: 330mm
Precipitation

Ofu Airport is a very wet location, receiving approximately 2619mm of precipitation annually, which averages out to around 218mm per month. The wettest month is February, averaging 431mm of rainfall. December and January also tend to see above-average precipitation. The driest month is September, with just 99mm. That's 332mm less than February, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h 30km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 19km/h Feb Wind Speed: 21km/h Mar Wind Speed: 16km/h Apr Wind Speed: 18km/h May Wind Speed: 21km/h Jun Wind Speed: 25km/h Jul Wind Speed: 26km/h Aug Wind Speed: 25km/h Sep Wind Speed: 25km/h Oct Wind Speed: 25km/h Nov Wind Speed: 19km/h Dec Wind Speed: 19km/h
Wind Speed

Ofu Airport is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 26km/h in winter, 23km/h in spring, 20km/h in summer, 18km/h in autumn.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

2 days until Spring

It is currently winter in Ofu Airport, which began on June 21, 2026. Ofu Airport is in the Southern Hemisphere, where the seasons are reversed: spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in April at around 28°C, while the coldest stretch bottoms out in September near 26°C. Spring is next, beginning on September 23, 2026 (2 days from now).

Spring

Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 538mm across the season with a monthly average of 179mm. Winds are moderate at around 23km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 1054mm across the season with a monthly average of 351mm. Winds are moderate at around 20km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 27 to 28°C. Rainfall is heavy, totalling around 666mm across the season with a monthly average of 222mm. Winds are moderate at around 18km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 360mm across the season with a monthly average of 120mm. Winds are strong, averaging 26km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Ofu Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
26 °C
28 °C
19 km/h
294 mm
0 cm
Feb
26 °C
28 °C
21 km/h
431 mm
0 cm
Mar
27 °C
28 °C
16 km/h
185 mm
0 cm
Apr
27 °C
28 °C
18 km/h
252 mm
0 cm
May
27 °C
28 °C
21 km/h
229 mm
0 cm
Jun
26 °C
28 °C
25 km/h
135 mm
0 cm
Jul
26 °C
27 °C
26 km/h
125 mm
0 cm
Aug
26 °C
27 °C
25 km/h
100 mm
0 cm
Sep Current
26 °C
27 °C
25 km/h
99 mm
0 cm
Oct
26 °C
27 °C
25 km/h
196 mm
0 cm
Nov
26 °C
28 °C
19 km/h
243 mm
0 cm
Dec
26 °C
28 °C
19 km/h
330 mm
0 cm
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Metric (°C, km/h)