Climate Overview
The climate in Apía is warm and mild. The average annual temperature is 21°C and approximately 5422mm of precipitation falls per year. Apía receives a notable amount of rainfall throughout the year, including during its driest month. Apía sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Apía has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is January, when average highs reach 25°C and the mean temperature sits around 21°C. January is the coolest month, with minimum temperatures around 18°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Apía is a very wet location, receiving approximately 5422mm of precipitation annually, which averages out to around 452mm per month. The wettest month is May, averaging 571mm of rainfall. April and October also tend to see above-average precipitation. The driest month is January, with just 294mm. That's 277mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Apía is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.
Seasons
87 days until Winter
It is currently autumn in Apía, which began on September 23, 2026. Apía sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in January at around 25°C, while the coldest stretch bottoms out in January near 18°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 1633mm across the season with a monthly average of 544mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 1340mm across the season with a monthly average of 447mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 1401mm across the season with a monthly average of 467mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 1048mm across the season with a monthly average of 349mm. Winds are generally light, averaging 3km/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 Apía 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.
