Climate Overview
The climate in Keelakarai is hot. The average annual temperature is 29°C and approximately 531mm of precipitation falls per year. November is the wettest month, receiving around 155mm of rainfall. Keelakarai sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Keelakarai has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is June, when average highs reach 32°C and the mean temperature sits around 30°C. December 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 3°C between highs and lows.
Precipitation
Keelakarai is a relatively dry area, receiving approximately 531mm of precipitation annually, which averages out to around 44mm per month. The wettest month is November, averaging 155mm of rainfall. May and December also tend to see above-average precipitation. The driest month is September, with just 6mm. That's 149mm 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
Keelakarai is relatively calm, with an average annual wind speed of 5km/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 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
63 days until Autumn
It is currently summer in Keelakarai, which began on June 21, 2026. Keelakarai sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in June at around 32°C, while the coldest stretch bottoms out in December near 25°C. Autumn is next, beginning on September 23, 2026 — 63 days from now.
Spring
Temperatures range from 27 to 32°C. Precipitation is moderate at around 167mm for the season, averaging 56mm per month. Winds are generally light, averaging 5km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 28 to 32°C. Rainfall is relatively light, with around 61mm over the season and a monthly average of 20mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 31°C. Precipitation is moderate at around 201mm for the season, averaging 67mm per month. Winds are generally light, averaging 5km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 25 to 29°C. Rainfall is relatively light, with around 102mm over the season and a monthly average of 34mm. Winds are generally light, averaging 6km/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 Keelakarai 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.