Climate Chart of Chennai, India
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
Chennai, India, is described here using climate data for 2013–2023. Monthly mean temperatures range from January at 24.8 °C to May / June at 30.9 °C, giving a broad sense of how the year's typical temperatures vary. Rainfall and sunshine also have distinct monthly highs and lows, so visitors may want to consider their own priorities rather than treating one part of the year as best for every kind of trip.
Climate overview
Temperature
Monthly mean temperatures are highest in May / June, at 30.9 °C; these are monthly averages, not daytime maximum temperatures. The coolest monthly mean is in January, at 24.8 °C, which may help visitors prioritising cooler average conditions identify a period to consider. Across the calendar months, the unweighted mean of monthly mean temperatures is 27.9 °C. This summarizes the monthly averages rather than describing the temperature on any particular day.
Rain
Mean daily rainfall is highest in November, at 10.43 mm/day. Visitors planning around this average should be prepared for rain, while keeping in mind that a monthly daily mean does not indicate how often rain falls or how much may fall on a particular day. The lowest monthly mean daily rainfall occurs in February, at 0.23 mm/day; this can be a conditional option for visitors prioritising lower average rainfall, but it does not guarantee dry days. The unweighted mean across monthly rainfall means is 3.29 mm/day, not a day-weighted annual average or a monthly total.
Sunshine
Mean daily sunshine duration reaches its highest monthly value in April, at 11.19 hours/day, and its lowest in November, at 8.03 hours/day. These averages can inform outdoor planning, but sunshine duration is not the same as day length. The unweighted mean of the monthly mean daily sunshine durations is 9.61 hours/day. It offers a broad summary, while conditions on individual days may differ from a monthly average.
Best Travel Time Guide for Chennai, India: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly average temperatures, January is the relevant point of reference, with a monthly mean of 24.8 °C; this does not predict the temperature on each day. Those looking instead for lower average rainfall could consider February, where mean daily rainfall is 0.23 mm/day, while allowing for the fact that this average neither guarantees dry weather nor measures rain frequency. Rain preparation is particularly relevant for visitors in November, the month with the highest mean daily rainfall at 10.43 mm/day. The average does not specify the timing or amount of rain on an individual day, so flexible plans and suitable rain protection remain sensible.
For outdoor sightseeing planned around sunshine averages, April has the highest mean daily sunshine duration at 11.19 hours/day; November has the lowest, at 8.03 hours/day. These figures can help with daylight outdoor planning, but they describe sunshine duration rather than day length and do not guarantee the conditions on a particular date.
Climate Data Overview for Chennai, India
Explore the comprehensive climate data for Chennai, India. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 24.8 | 0.66 | 0.00 | 10.08 |
| Feb | 25.4 | 0.23 | 0.00 | 10.54 |
| Mar | 27.4 | 0.29 | 0.00 | 11.01 |
| Apr | 29.6 | 0.38 | 0.00 | 11.19 |
| May | 30.9 | 2.03 | 0.00 | 10.60 |
| Jun | 30.9 | 1.86 | 0.00 | 9.50 |
| Jul | 29.7 | 3.38 | 0.00 | 8.18 |
| Aug | 29.1 | 4.30 | 0.00 | 8.72 |
| Sep | 28.5 | 4.72 | 0.00 | 9.04 |
| Oct | 27.6 | 5.96 | 0.00 | 9.27 |
| Nov | 26.0 | 10.43 | 0.00 | 8.03 |
| Dec | 25.2 | 5.30 | 0.00 | 9.15 |
| Average | 27.9 | 3.29 | 0.00 | 9.61 |
