Monthly Climate
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Best time to visit Basseterre

March is the best time to visit Basseterre for general sightseeing, with average highs of 26 °C and about 7 wet days. The comfortable season runs roughly January to April.

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 March comfort 71/100
A beach holiday March sea 26 °C
The least cloud January 30 % average cloud cover
The least rain March 23 mm
Warmth August 29 °C
Cooler weather February 26 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 March 71 26 °C 7 90
2 February 70 26 °C 8 88
3 January 66 26 °C 10 83
4 April 65 27 °C 9 86
5 December 60 27 °C 13 77
6 May 58 28 °C 12 80
7 June 54 28 °C 11 80
8 November 53 27 °C 16 72
9 July 49 28 °C 15 73
10 October 48 28 °C 18 70
11 September 47 29 °C 17 70
12 August 46 29 °C 17 71

For a beach holiday

March scores highest, with a sea temperature of 26 °C and air temperatures around 26 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 27 °C 26 °C 30 % 83
February 26 °C 26 °C 30 % 88
March 26 °C 26 °C 34 % 90
April 27 °C 27 °C 38 % 86
May 27 °C 28 °C 55 % 80
June 28 °C 28 °C 54 % 80
July 28 °C 28 °C 49 % 73
August 29 °C 29 °C 50 % 71
September 29 °C 29 °C 59 % 70
October 29 °C 28 °C 55 % 70
November 28 °C 27 °C 46 % 72
December 27 °C 27 °C 36 % 77

When to think twice

August scores lowest with about 17 wet days and highs near 29 °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 26.0 °C 34 mm 30 %
February 25.9 °C 24 mm 30 %
March 26.2 °C 23 mm 34 %
April 26.9 °C 35 mm 38 %
May 27.7 °C 65 mm 55 %
June 28.3 °C 51 mm 54 %
July 28.4 °C 75 mm 49 %
August 28.7 °C 92 mm 50 %
September 28.6 °C 117 mm 59 %
October 28.2 °C 125 mm 55 %
November 27.4 °C 106 mm 46 %
December 26.5 °C 59 mm 36 %

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.