Climate Insights for Sigiriya

The climate in Sigiriya is hot. The average annual temperature is 27°C and approximately 1155mm of precipitation falls per year. November is the wettest month, receiving around 260mm of rainfall. Sigiriya sits near the equator, so seasonal temperature differences are minimal throughout the year.

Sigiriya sees moderate temperature variation throughout the year, ranging from 21°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 21°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Sigiriya is a moderately rainy area, receiving approximately 1155mm of precipitation annually, which averages out to around 96mm per month. The wettest month is November, averaging 260mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 22mm. That's 237mm 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.

Sigiriya 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 2km/h in winter, 3km/h in spring, 6km/h in summer, 3km/h in autumn.

It is currently summer in Sigiriya, which began on June 21, 2026. Sigiriya 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 21°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.

The best time to visit Sigiriya is during January, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 56mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 35°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 Sigiriya 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.