Climate Insights for Chennai

The climate in Chennai is hot. The average annual temperature is 28°C and approximately 1,162 mm of precipitation falls per year. November is the wettest month, receiving around 316 mm of rainfall. Chennai is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, May, July. The coldest months are January, February, December, when temperatures can drop to 24°C.The climate in Chennai is hot. The average annual temperature is 83°F and approximately 45.8 in of precipitation falls per year. November is the wettest month, receiving around 12.5 in of rainfall. Chennai is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, May, July. The coldest months are January, February, December, when temperatures can drop to 74°F.

Chennai has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is June, when average highs reach 34°C and the mean temperature sits around 31°C. January is the coolest month, with minimum temperatures around 24°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.Chennai sees moderate temperature variation throughout the year, ranging from 74°F to 93°F. The warmest month is June, when average highs reach 93°F and the mean temperature sits around 87°F. January is the coolest month, with minimum temperatures around 74°F and an average of 78°F. Daily temperature variation is modest, with an average difference of 9°F between highs and lows.

Chennai is a moderately rainy area, receiving approximately 1,162 mm of precipitation annually, which averages out to around 97 mm per month. The wettest month is November, averaging 316 mm of rainfall. October and December also tend to see above-average precipitation. The driest month is February, with just 5 mm. That's 311 mm 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.Chennai is a moderately rainy area, receiving approximately 45.8 in of precipitation annually, which averages out to around 3.8 in per month. The wettest month is November, averaging 12.4 in of rainfall. October and December also tend to see above-average precipitation. The driest month is February, with just 0.2 in. That's 12.2 in 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.

Chennai is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.Chennai is moderately windy, with an average annual wind speed of 8mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 9mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in October, with average winds dropping to 6mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap between the calmest and windiest months.

The table below shows monthly climate averages for Chennai 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.The table below shows monthly climate averages for Chennai based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.