Monthly Climate
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Best time to visit Mombasa

August is the best time to visit Mombasa for general sightseeing, with average highs of 27 °C and about 15 wet days. The comfortable season runs roughly June to October.

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 August comfort 64/100
A beach holiday January sea 28 °C
The least cloud September 46 % average cloud cover
The least rain February 20 mm
Warmth February 32 °C
Cooler weather July 26 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 August 64 27 °C 15 75
2 July 64 26 °C 15 74
3 January 64 31 °C 6 87
4 September 64 28 °C 14 77
5 February 63 32 °C 4 87
6 June 60 27 °C 16 74
7 October 59 29 °C 15 74
8 May 52 28 °C 20 73
9 December 51 30 °C 17 68
10 November 51 29 °C 19 72
11 March 50 31 °C 15 63
12 April 47 30 °C 22 68

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 56 % 87
February 28 °C 32 °C 55 % 87
March 29 °C 31 °C 57 % 63
April 29 °C 30 °C 65 % 68
May 28 °C 28 °C 63 % 73
June 27 °C 27 °C 57 % 74
July 26 °C 26 °C 57 % 74
August 25 °C 27 °C 52 % 75
September 26 °C 28 °C 46 % 77
October 27 °C 29 °C 54 % 74
November 28 °C 29 °C 57 % 72
December 28 °C 30 °C 52 % 68

When to think twice

April scores lowest with about 22 wet days and highs near 30 °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 30.9 °C 29 mm 56 %
February 31.6 °C 20 mm 55 %
March 31.4 °C 64 mm 57 %
April 29.6 °C 130 mm 65 %
May 27.8 °C 176 mm 63 %
June 26.9 °C 69 mm 57 %
July 26.3 °C 53 mm 57 %
August 26.6 °C 45 mm 52 %
September 27.6 °C 45 mm 46 %
October 28.5 °C 73 mm 54 %
November 29.4 °C 85 mm 57 %
December 30.4 °C 72 mm 52 %

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.