Climate Overview
The climate in Trincomalee Airport is hot. The average annual temperature is 28°C and approximately 1293mm of precipitation falls per year. Trincomalee Airport receives a notable amount of rainfall throughout the year, including during its driest month. Trincomalee Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Trincomalee Airport sees moderate temperature variation throughout the year, ranging from 22°C to 35°C. The warmest month is April, when average highs reach 35°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 22°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Trincomalee Airport is a fairly wet location, receiving approximately 1293mm of precipitation annually, which averages out to around 108mm per month. The wettest month is November, averaging 275mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 34mm. That's 242mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Trincomalee Airport 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 June, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 4km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 3km/h in winter, 3km/h in spring, 5km/h in summer, 3km/h in autumn.
Seasons
85 days until Autumn
It is currently summer in Trincomalee Airport, which began on June 21, 2026. Trincomalee 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 April at around 35°C, while the coldest stretch bottoms out in January near 22°C. Autumn is next, beginning on September 23, 2026 — 85 days from now.
Spring
Temperatures range from 23 to 35°C. Precipitation is moderate at around 230mm for the season, averaging 77mm per month. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 34°C. Precipitation is moderate at around 160mm for the season, averaging 53mm per month. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 598mm across the season with a monthly average of 199mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 305mm across the season with a monthly average of 102mm. 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 Trincomalee 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.
