Apia climate
Apia (Samoa) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 28 °C82 °F, and about 1,857 mm73 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Apia climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2984 | 2781 | 2883 | 25810 |
| Feb | 2984 | 2781 | 2883 | 2419.5 |
| Mar | 2984 | 2882 | 2883 | 1656.5 |
| Apr | 2984 | 2882 | 2883 | 1696.6 |
| May | 2984 | 2781 | 2882 | 1285.0 |
| Jun | 2883 | 2780 | 2882 | 913.6 |
| Jul | 2882 | 2679 | 2781 | 753.0 |
| Aug | 2882 | 2679 | 2781 | 562.2 |
| Sep | 2883 | 2680 | 2781 | 923.6 |
| Oct | 2883 | 2780 | 2882 | 1415.5 |
| Nov | 2983 | 2781 | 2882 | 2138.4 |
| Dec | 2984 | 2781 | 2882 | 2299.0 |
| Year | 2984 | 2679 | 2882 | 1,85773 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 82% | 81% | 5.6 | 12:51 |
| Feb | 82% | 81% | 5.6 | 12:34 |
| Mar | 81% | 74% | 5.7 | 12:12 |
| Apr | 81% | 68% | 5.1 | 11:48 |
| May | 81% | 65% | 4.5 | 11:29 |
| Jun | 81% | 62% | 4.3 | 11:19 |
| Jul | 80% | 61% | 4.4 | 11:23 |
| Aug | 79% | 60% | 5.2 | 11:39 |
| Sep | 79% | 59% | 5.8 | 12:03 |
| Oct | 80% | 65% | 6.0 | 12:26 |
| Nov | 81% | 72% | 5.9 | 12:47 |
| Dec | 81% | 79% | 5.7 | 12:56 |
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 Apia 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 28 °C82 °F and lows 26 °C79 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 1.2 °C2.1 °F.
It is wet, with about 1,857 mm73 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 (258 mm10 in), the driest is August (56 mm2.2 in).
Relative humidity ranges from 79% in August to 82% in February. The clearest skies (lowest average cloud amount, 59%) are typical of September. Average wind speed near the ground ranges from 13 km/h (8 mph) in March to 19 km/h (12 mph) in September. Daylight lasts from about 11.3 hours in June to 12.9 hours in December.
Best time to visit Apia
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July and August: average highs of 28 °C82 °F to 28 °C82 °F with 56 mm2.2 in to 75 mm3.0 in of precipitation per month.
The most challenging month is January, which is very wet (258 mm10 in) and humid (82% 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 Apia
- Wetter months (November–April) — highs around 29 °C83 °F, lows 2781 to 28 °C82 °F, about 212 mm8.4 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 2882 to 29 °C84 °F, lows 2679 to 27 °C81 °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 Apia compares
Places in other countries with the most similar temperature and rainfall pattern: Pago Pago (American Samoa, Am), Mata-Utu (Wallis and Futuna, Af) and Serang (Indonesia, Am).
Nearby places
Frequently asked questions
What is the warmest month in Apia?
April is the warmest month in Apia, with an average high of 29 °C (84 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Apia?
August is the coldest month, with an average high of 28 °C (82 °F) and an average low of 26 °C (79 °F).
When does it rain the most in Apia?
January is the wettest month with about 258 mm (10.2 in) of precipitation; August is the driest with about 56 mm (2.2 in).
What is the best time to visit Apia?
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.
The grid cell’s average elevation is 63 m, while Apia lies at about 9 m. Temperatures on this page were therefore adjusted by +0.4 °C0.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.