Monthly Climate
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Best time to visit Kollam

January is the best time to visit Kollam for general sightseeing, with average highs of 31 °C and about 4 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 69/100
A beach holiday January sea 28 °C
The least cloud February 39 % average cloud cover
The least rain January 17 mm
Warmth March 32 °C
Cooler weather July 28 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 January 69 31 °C 4 90
2 December 67 30 °C 8 84
3 February 66 32 °C 5 84
4 March 54 32 °C 12 66
5 September 51 28 °C 23 74
6 August 51 28 °C 26 75
7 October 51 28 °C 25 72
8 November 51 29 °C 20 70
9 July 51 28 °C 28 75
10 June 49 28 °C 29 73
11 May 45 30 °C 25 66
12 April 43 31 °C 22 60

For a beach holiday

January scores highest, with a sea temperature of 28 °C and air temperatures around 31 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 28 °C 31 °C 43 % 90
February 29 °C 32 °C 39 % 84
March 29 °C 32 °C 43 % 66
April 30 °C 31 °C 62 % 60
May 29 °C 30 °C 78 % 66
June 28 °C 28 °C 90 % 73
July 26 °C 28 °C 92 % 75
August 26 °C 28 °C 88 % 75
September 27 °C 28 °C 82 % 74
October 28 °C 28 °C 82 % 72
November 29 °C 29 °C 74 % 70
December 29 °C 30 °C 56 % 84

When to think twice

April scores lowest with about 22 wet days and highs near 31 °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 31.0 °C 17 mm 43 %
February 31.8 °C 22 mm 39 %
March 32.0 °C 57 mm 43 %
April 31.2 °C 128 mm 62 %
May 29.9 °C 217 mm 78 %
June 28.1 °C 294 mm 90 %
July 27.7 °C 246 mm 92 %
August 27.7 °C 207 mm 88 %
September 28.1 °C 185 mm 82 %
October 28.4 °C 245 mm 82 %
November 28.9 °C 192 mm 74 %
December 29.8 °C 63 mm 56 %

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.