Climate Insights for Dambulla

The climate in Dambulla is hot. The average annual temperature is 26°C and approximately 1603mm of precipitation falls per year. Dambulla receives a notable amount of rainfall throughout the year, including during its driest month. Dambulla sits near the equator, so seasonal temperature differences are minimal throughout the year.

Dambulla sees moderate temperature variation throughout the year, ranging from 20°C to 33°C. The warmest month is April, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 20°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Dambulla is a fairly wet location, receiving approximately 1603mm of precipitation annually, which averages out to around 134mm per month. The wettest month is October, averaging 297mm of rainfall. November and May also tend to see above-average precipitation. The driest month is January, with just 50mm. That's 248mm less than October, 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.

Dambulla 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 5km/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 3km/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, 2km/h in spring, 5km/h in summer, 3km/h in autumn.

It is currently summer in Dambulla, which began on June 21, 2026. Dambulla 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 33°C, while the coldest stretch bottoms out in January near 20°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Dambulla is during January, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 50mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 33°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Dambulla 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.