Monthly Climate
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Best time to visit Colombo

April is the best time to visit Colombo for general sightseeing, with average highs of 22 °C and about 10 wet days. The comfortable season runs roughly April to November.

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 April comfort 86/100
The least cloud August 58 % average cloud cover
The least rain April 72 mm
Warmth February 24 °C
Cooler weather July 18 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 April 86 22 °C 10
2 August 85 19 °C 7
3 September 84 20 °C 10
4 May 83 19 °C 9
5 October 80 22 °C 14
6 July 80 18 °C 7
7 November 80 22 °C 15
8 June 79 18 °C 8
9 March 74 23 °C 18
10 December 73 24 °C 19
11 January 70 24 °C 23
12 February 69 24 °C 21

When to think twice

February scores lowest with about 21 wet days and highs near 24 °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 24.4 °C 235 mm 81 %
February 24.4 °C 191 mm 80 %
March 23.4 °C 127 mm 75 %
April 21.9 °C 72 mm 70 %
May 18.8 °C 88 mm 67 %
June 17.9 °C 97 mm 62 %
July 17.8 °C 86 mm 59 %
August 19.4 °C 73 mm 58 %
September 20.4 °C 124 mm 71 %
October 21.7 °C 127 mm 80 %
November 22.4 °C 125 mm 78 %
December 24.1 °C 166 mm 78 %

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.