Climate Overview
The climate in Sematan Airport is hot. The average annual temperature is 27°C and approximately 3508mm of precipitation falls per year. Sematan Airport receives a notable amount of rainfall throughout the year, including during its driest month. Sematan Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Sematan Airport has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 24°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
Sematan Airport is a very wet location, receiving approximately 3508mm of precipitation annually, which averages out to around 292mm per month. The wettest month is December, averaging 403mm of rainfall. January and November also tend to see above-average precipitation. The driest month is July, with just 182mm. That's 221mm less than December, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Sematan Airport is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/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 9km/h in winter, 7km/h in spring, 7km/h in summer, 7km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Sematan Airport, which began on March 20, 2026. Sematan Airport sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in July at around 31°C, while the coldest stretch bottoms out in February near 24°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 816mm across the season with a monthly average of 272mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 658mm across the season with a monthly average of 219mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 936mm across the season with a monthly average of 312mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 1097mm across the season with a monthly average of 366mm. Winds are generally light, averaging 9km/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 Sematan 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.
