Climate Insights for Trincomalee
Trincomalee District, Eastern Province, Sri Lanka
Climate Overview
The climate in Trincomalee is hot. The average annual temperature is 28°C and approximately 1,429 mm of precipitation falls per year. November is the wettest month, receiving around 410 mm of rainfall. Trincomalee sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Trincomalee is hot. The average annual temperature is 82°F and approximately 56.3 in of precipitation falls per year. November is the wettest month, receiving around 16.2 in of rainfall. Trincomalee sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Trincomalee has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is June, when average highs reach 33°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 25°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.Trincomalee has relatively stable temperatures year-round, staying within a 16°F range. The warmest month is June, when average highs reach 92°F and the mean temperature sits around 85°F. January is the coolest month, with minimum temperatures around 76°F and an average of 79°F. Daily temperature variation is modest, with an average difference of 8°F between highs and lows.
Precipitation
Trincomalee is a fairly wet location, receiving approximately 1,429 mm of precipitation annually, which averages out to around 119 mm per month. The wettest month is November, averaging 410 mm of rainfall. December and October also tend to see above-average precipitation. The driest month is June, with just 16 mm. That's 394 mm 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.Trincomalee is a fairly wet location, receiving approximately 56.3 in of precipitation annually, which averages out to around 4.7 in per month. The wettest month is November, averaging 16.1 in of rainfall. December and October also tend to see above-average precipitation. The driest month is June, with just 0.6 in. That's 15.5 in 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 is mildly breezy, with an average annual wind speed of 16km/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 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 12km/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 15km/h in winter, 13km/h in spring, 21km/h in summer, 15km/h in autumn.Trincomalee is moderately windy, with an average annual wind speed of 10mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is June, averaging 14mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in April, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 7mph 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 9mph in winter, 8mph in spring, 13mph in summer, 9mph in autumn.
Monthly Climate Data
The table below shows monthly climate averages for Trincomalee 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.The table below shows monthly climate averages for Trincomalee based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.