Coimbatore is warmest in March, averaging 36° by day and 21° at night. The wettest month is July with 208 mm, and the year brings about 1380 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 29° | 17° | 37 mm | 11.4 h | Beach weather |
| February | 33° | 18° | 6 mm | 11.6 h | Beach weather |
| March | 36° | 21° | 25 mm | 11.9 h | Beach weather |
| April | 36° | 23° | 60 mm | 12.2 h | Beach weather |
| May | 32° | 23° | 149 mm | 12.5 h | Mild |
| June | 30° | 22° | 126 mm | 12.6 h | Mild |
| July | 28° | 21° | 208 mm | 12.6 h | Rainy season |
| August | 28° | 21° | 171 mm | 12.4 h | Mild |
| September | 28° | 21° | 141 mm | 12.1 h | Mild |
| October | 28° | 21° | 205 mm | 11.7 h | Rainy season |
| November | 27° | 19° | 171 mm | 11.5 h | Mild |
| December | 27° | 18° | 81 mm | 11.4 h | Beach weather |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: January, February, March, April and December — highs around 32°, nights no colder than 17°, and at most 81 mm of rain in a month.
Wet season: July and October — up to 208 mm in a single month.