Chennai Climate by Month
Chennai, Tamil Nadu, India
Hot all year, with a rainy season from August to December.
Hot all year, with a rainy season from August to December: that's Chennai's climate in short. Expect highs of 100°F (38°C) in May and 85°F (30°C) in December, with the coldest nights (January) near 71°F (21°C). It gets 53 in (1338 mm) of rain a year, 79% of it from August to December. February and March are almost completely dry.
- Warmest month
- 100°F(38°C)
- Average high, May
- Coldest nights
- 71°F(21°C)
- Average low, January
- Rain per year
- 53 in(1338 mm)
- Wettest: November
- Humidity
- 70%
- Sunniest: March
Best and worst months in Chennai
Best for weatherJanuary and February are the best time for weather in Chennai: highs near 88°F (31°C) and almost no rain.
Least pleasantOctober and November are the least pleasant; October is the wettest, with 12 in (294 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in January.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Chennai weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 86°F(30°C) | 71°F(21°C) | 0.7 in(17 mm) | 73% | 5.3 |
| FebFebruaryBest | 89°F(32°C) | 72°F(22°C) | 0.2 in(5 mm) | 73% | 6.1 |
| MarMarch | 93°F(34°C) | 75°F(24°C) | 0.2 in(4 mm) | 70% | 6.5 |
| AprApril | 96°F(36°C) | 79°F(26°C) | 0.9 in(23 mm) | 71% | 6.5 |
| MayMay | 100°F(38°C) | 82°F(28°C) | 2.0 in(52 mm) | 64% | 6.2 |
| JunJune | 99°F(37°C) | 81°F(27°C) | 3.0 in(76 mm) | 60% | 5.5 |
| JulJuly | 96°F(36°C) | 80°F(26°C) | 4.1 in(105 mm) | 62% | 5.0 |
| AugAugust | 95°F(35°C) | 79°F(26°C) | 6.6 in(168 mm) | 66% | 5.2 |
| SepSeptember | 95°F(35°C) | 78°F(26°C) | 5.0 in(126 mm) | 69% | 5.3 |
| OctOctober | 91°F(33°C) | 77°F(25°C) | 12 in(294 mm) | 75% | 4.7 |
| NovNovember | 87°F(31°C) | 74°F(24°C) | 13 in(338 mm) | 78% | 4.4 |
| DecDecember | 85°F(30°C) | 72°F(22°C) | 5.1 in(130 mm) | 78% | 4.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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