Tiruchirappalli is warmest in April, averaging 39° by day and 26° at night. The wettest month is November with 207 mm, and the year brings about 1055 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 30° | 18° | 47 mm | 11.4 h | Beach weather |
| February | 33° | 20° | 8 mm | 11.6 h | Beach weather |
| March | 37° | 23° | 9 mm | 11.9 h | Very hot |
| April | 39° | 26° | 27 mm | 12.2 h | Very hot |
| May | 37° | 26° | 90 mm | 12.5 h | Very hot |
| June | 35° | 25° | 69 mm | 12.6 h | Beach weather |
| July | 34° | 25° | 90 mm | 12.6 h | Beach weather |
| August | 34° | 24° | 115 mm | 12.4 h | Mild |
| September | 33° | 24° | 108 mm | 12.1 h | Mild |
| October | 31° | 23° | 164 mm | 11.8 h | Mild |
| November | 29° | 21° | 207 mm | 11.5 h | Rainy season |
| December | 29° | 20° | 121 mm | 11.4 h | Mild |
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, June and July — highs around 33°, nights no colder than 18°, and at most 90 mm of rain in a month.
Wet season: November — up to 207 mm in a single month.
Serious heat: In March, April and May the average high reaches 39°.