Climate Insights for Jaffna

The climate in Jaffna is hot. The average annual temperature is 28°C and approximately 1,350 mm of precipitation falls per year. November is the wettest month, receiving around 410 mm of rainfall. Jaffna sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Jaffna is hot. The average annual temperature is 82°F and approximately 53.1 in of precipitation falls per year. November is the wettest month, receiving around 16.1 in of rainfall. Jaffna sits near the equator, so seasonal temperature differences are minimal throughout the year.

Jaffna has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is April, when average highs reach 31°C and the mean temperature sits around 29°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 2°C between highs and lows.Jaffna has relatively stable temperatures year-round, staying within a 10°F range. The warmest month is April, when average highs reach 87°F and the mean temperature sits around 85°F. January is the coolest month, with minimum temperatures around 77°F and an average of 79°F. Daily temperature variation is modest, with an average difference of 4°F between highs and lows.

Jaffna is a fairly wet location, receiving approximately 1,350 mm of precipitation annually, which averages out to around 112 mm per month. The wettest month is November, averaging 410 mm of rainfall. October and December also tend to see above-average precipitation. The driest month is March, with just 19 mm. That's 392 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.Jaffna is a fairly wet location, receiving approximately 53.1 in of precipitation annually, which averages out to around 4.4 in per month. The wettest month is November, averaging 16.1 in of rainfall. October and December also tend to see above-average precipitation. The driest month is March, with just 0.7 in. That's 15.4 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.

Jaffna is moderately windy, with an average annual wind speed of 21km/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 29km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 13km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 20km/h in winter, 19km/h in spring, 26km/h in summer, 20km/h in autumn.Jaffna is very windy, with an average annual wind speed of 13mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is June, averaging 18mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in April, with average winds dropping to 10mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8mph gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 13mph in winter, 12mph in spring, 16mph in summer, 13mph in autumn.

The table below shows monthly climate averages for Jaffna 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 Jaffna 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.