Tirunelveli is warmest in March, averaging 36° by day and 23° at night. The wettest month is November with 258 mm, and the year brings about 1267 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 29° | 19° | 112 mm | 11.5 h | Mild |
| February | 32° | 21° | 11 mm | 11.7 h | Beach weather |
| March | 36° | 23° | 22 mm | 11.9 h | Beach weather |
| April | 35° | 25° | 60 mm | 12.2 h | Beach weather |
| May | 32° | 25° | 171 mm | 12.4 h | Mild |
| June | 30° | 24° | 63 mm | 12.5 h | Beach weather |
| July | 30° | 23° | 71 mm | 12.5 h | Beach weather |
| August | 31° | 23° | 74 mm | 12.3 h | Beach weather |
| September | 31° | 23° | 102 mm | 12.0 h | Beach weather |
| October | 30° | 23° | 183 mm | 11.8 h | Mild |
| November | 28° | 22° | 258 mm | 11.6 h | Rainy season |
| December | 28° | 21° | 140 mm | 11.5 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: February, March, April, June, July, August and September — highs around 32°, nights no colder than 21°, and at most 102 mm of rain in a month.
Wet season: November — up to 258 mm in a single month.