Climate Insights for Usilampatti

The climate in Usilampatti is hot. The average annual temperature is 28°C and approximately 1045mm of precipitation falls per year. November is the wettest month, receiving around 227mm of rainfall. Usilampatti sits near the equator, so seasonal temperature differences are minimal throughout the year.

Usilampatti sees moderate temperature variation throughout the year, ranging from 20°C to 37°C. April is the hottest month, with daytime highs reaching 37°C and an average of 31°C. January is the coolest month, with minimum temperatures around 20°C and an average of 25°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 2°C shift in average temperatures.

Usilampatti is a moderately rainy area, receiving approximately 1045mm of precipitation annually, which averages out to around 87mm per month. The wettest month is November, averaging 227mm of rainfall. October and August also tend to see above-average precipitation. The driest month is February, with just 9mm. That's 218mm 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.

Usilampatti 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 6km/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 2km/h gap between the calmest and windiest months.

It is currently summer in Usilampatti, which began on June 21, 2026. Usilampatti 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 37°C, while the coldest stretch bottoms out in January near 20°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Usilampatti is during January, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 43mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 37°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 Usilampatti 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.