Climate Insights for Chennimalai

The climate in Chennimalai is hot. The average annual temperature is 29°C and approximately 518mm of precipitation falls per year. December is the wettest month, receiving around 99mm of rainfall. Chennimalai is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, March. The coldest months are January, December, February, when temperatures can drop to 22°C.

Chennimalai sees moderate temperature variation throughout the year, ranging from 22°C to 40°C. April is the hottest month, with daytime highs reaching 40°C and an average of 34°C. January is the coolest month, with minimum temperatures around 22°C and an average of 26°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between May and June, with a 3°C shift in average temperatures.

Chennimalai is a relatively dry area, receiving approximately 518mm of precipitation annually, which averages out to around 43mm per month. The wettest month is December, averaging 99mm of rainfall. July and June also tend to see above-average precipitation. The driest month is February, with just 1mm. That's 98mm less than December, 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.

Chennimalai 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 November, 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 2km/h in winter, 2km/h in spring, 5km/h in summer, 3km/h in autumn.

It is currently summer in Chennimalai, which began on June 21, 2026. Chennimalai is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 40°C, while the coldest stretch bottoms out in January near 22°C. Autumn is next, beginning on September 23, 2026 — 63 days from now.

The table below shows monthly climate averages for Chennimalai 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.