Pago Pago climate
Pago Pago (American Samoa) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 28 °C82 °F, and about 1,944 mm77 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Pago Pago climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2983 | 2882 | 2883 | 26710 |
| Feb | 2983 | 2882 | 2883 | 2489.8 |
| Mar | 2984 | 2882 | 2883 | 1847.2 |
| Apr | 2984 | 2882 | 2883 | 1907.5 |
| May | 2883 | 2882 | 2883 | 1355.3 |
| Jun | 2882 | 2781 | 2882 | 863.4 |
| Jul | 2781 | 2780 | 2781 | 752.9 |
| Aug | 2781 | 2780 | 2780 | 562.2 |
| Sep | 2781 | 2780 | 2781 | 883.5 |
| Oct | 2882 | 2781 | 2781 | 1435.6 |
| Nov | 2883 | 2781 | 2882 | 2289.0 |
| Dec | 2883 | 2882 | 2882 | 2459.6 |
| Year | 2984 | 2780 | 2882 | 1,94477 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 81% | 76% | 5.9 | 12:53 |
| Feb | 81% | 76% | 5.9 | 12:35 |
| Mar | 80% | 70% | 5.9 | 12:13 |
| Apr | 80% | 64% | 5.1 | 11:48 |
| May | 80% | 61% | 4.5 | 11:28 |
| Jun | 79% | 59% | 4.3 | 11:17 |
| Jul | 80% | 58% | 4.4 | 11:21 |
| Aug | 79% | 55% | 5.1 | 11:38 |
| Sep | 80% | 55% | 5.8 | 12:02 |
| Oct | 80% | 61% | 6.1 | 12:27 |
| Nov | 81% | 69% | 6.1 | 12:48 |
| Dec | 81% | 74% | 5.9 | 12:58 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Pago Pago is like
The warmest month is April, with an average high of 29 °C84 °F and a low of 28 °C82 °F. The coldest is August, when highs average 27 °C81 °F and lows 27 °C80 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 1.4 °C2.5 °F.
It is wet, with about 1,944 mm77 in of precipitation per year. The wettest three-month stretch is December–February, which brings 39% of the annual total. The wettest month is January (267 mm10 in), the driest is August (56 mm2.2 in).
Relative humidity ranges from 79% in August to 81% in January. The clearest skies (lowest average cloud amount, 55%) are typical of September. Average wind speed near the ground ranges from 14 km/h (9 mph) in March to 21 km/h (13 mph) in July. Daylight lasts from about 11.3 hours in June to 13.0 hours in December.
Best time to visit Pago Pago
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July and August: average highs of 27 °C81 °F to 27 °C81 °F with 56 mm2.2 in to 75 mm2.9 in of precipitation per month.
The most challenging month is January, which is very wet (267 mm10 in) and humid (81% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Pago Pago
- Wetter months (November–April) — highs 2883 to 29 °C84 °F, lows 2781 to 28 °C82 °F, about 227 mm8.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (May–October) — highs 2781 to 28 °C83 °F, lows 2780 to 28 °C82 °F, about 97 mm3.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
How Pago Pago compares
Compared with Apia, about 125 km to the northwest, Pago Pago has practically the same average temperature and receives a similar amount of precipitation.
Places in other countries with the most similar temperature and rainfall pattern: Apia (Samoa, Am), Mata-Utu (Wallis and Futuna, Af) and Serang (Indonesia, Am).
Nearby places
- Apia 125 km · 28 °C82 °F · 1,857 mm73 in
- Alofi 537 km · 26 °C78 °F · 1,515 mm60 in
- Mata-Utu 601 km · 28 °C82 °F · 2,148 mm85 in
- Nukualofa 899 km · 25 °C77 °F · 1,516 mm60 in
- Suva 1,237 km · 24 °C76 °F · 2,546 mm100 in
- Funafuti 1,273 km · 28 °C83 °F · 2,532 mm100 in
- Avarua 1,389 km · 25 °C77 °F · 1,609 mm63 in
Frequently asked questions
What is the warmest month in Pago Pago?
April is the warmest month in Pago Pago, with an average high of 29 °C (84 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Pago Pago?
August is the coldest month, with an average high of 27 °C (81 °F) and an average low of 27 °C (80 °F).
When does it rain the most in Pago Pago?
January is the wettest month with about 267 mm (10.5 in) of precipitation; August is the driest with about 56 mm (2.2 in).
What is the best time to visit Pago Pago?
Judging by long-term averages, the most comfortable months are July and August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.