Tirunelveli climate: monthly averages: annual mean temperature 25.8 C; warmest month Apr (28.6 C); coldest month Dec (23.6 C).
Annual mean temperature: 25.8 C
Warmest month: Apr (28.6 C)
Coldest month: Dec (23.6 C)
Wettest month: Oct (7.92 mm/day)
All-time record high: 39.8 C
All-time record low: 14.6 C
Tirunelveli’s climate averages **25.8°C annually**, with April as the warmest month (28.6°C) and December the coldest (23.6°C). Rainfall totals about **1,292 mm per year**, peaking in October (7.92 mm/day). Extreme temperatures range from **39.8°C** (record high) to **14.6°C** (record low). Humidity and seasonal shifts influence weather patterns, with wetter conditions in the monsoon months.
Annual mean temperature 25.8 C
Warmest month Apr (28.6 C)
Coldest month Dec (23.6 C)
Wettest month Oct (7.92 mm/day)
All-time record high 39.8 C
All-time record low 14.6 C
Annual precipitation 1,292 mm / year
Coordinates 8.72742, 77.6838
Population 1,435,844
Average monthly temperature and rainfall in Tirunelveli
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
24.0
0.41
35.1
14.8
Feb
26.1
0.56
38.0
16.0
Mar
28.3
1.35
39.5
17.8
Apr
28.6
3.00
39.8
21.4
May
27.3
4.40
39.0
20.4
Jun
25.9
4.53
34.7
21.4
Jul
25.3
3.56
34.0
20.2
Aug
25.4
2.75
34.3
20.7
Sep
25.6
4.58
35.6
20.1
Oct
25.4
7.92
36.2
19.4
Nov
24.4
7.35
33.3
15.8
Dec
23.6
1.98
33.1
14.6
What the Tirunelveli climate table shows
Values are multi-decadal climatological averages for the 8.72742, 77.6838 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
**When is Tirunelveli’s hottest month?**?
April averages **28.6°C**, the warmest month of the year.
**How much rain does Tirunelveli get yearly?**?
The city receives roughly **1,292 mm annually**, with October being the wettest month.