Monthly Climate
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Best time to visit Tirunelveli

January is the best time to visit Tirunelveli for general sightseeing, with average highs of 30 °C and about 6 wet days. The comfortable season runs roughly December to February.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking January comfort 74/100
The least cloud March 40 % average cloud cover
The least rain July 29 mm
Warmth May 36 °C
Cooler weather December 29 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 January 74 30 °C 6
2 February 67 33 °C 6
3 December 66 29 °C 13
4 March 57 35 °C 7
5 July 56 34 °C 6
6 August 55 34 °C 7
7 June 54 34 °C 6
8 September 54 35 °C 8
9 November 52 29 °C 21
10 May 48 36 °C 8
11 April 47 36 °C 10
12 October 47 33 °C 17

When to think twice

October scores lowest with about 17 wet days and highs near 33 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 30.1 °C 34 mm 53 %
February 32.7 °C 29 mm 43 %
March 35.3 °C 40 mm 40 %
April 36.3 °C 60 mm 54 %
May 36.3 °C 56 mm 65 %
June 34.2 °C 36 mm 81 %
July 33.8 °C 29 mm 85 %
August 34.3 °C 41 mm 81 %
September 34.9 °C 51 mm 74 %
October 32.6 °C 193 mm 78 %
November 29.5 °C 262 mm 77 %
December 28.7 °C 131 mm 68 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.