Monthly Climate
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Best time to visit Saint John’s

February is the best time to visit Saint John’s 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 February comfort 71/100
A beach holiday February sea 26 °C
The least cloud January 30 % average cloud cover
The least rain February 24 mm
Warmth August 29 °C
Cooler weather January 26 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 February 71 26 °C 7 91
2 March 70 27 °C 7 90
3 January 65 26 °C 10 84
4 April 65 27 °C 9 86
5 December 60 27 °C 13 78
6 May 57 28 °C 13 78
7 November 53 28 °C 16 72
8 June 53 29 °C 12 78
9 October 47 28 °C 19 70
10 July 47 29 °C 16 72
11 September 46 29 °C 18 70
12 August 44 29 °C 18 70

For a beach holiday

February 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 % 84
February 26 °C 26 °C 32 % 91
March 26 °C 27 °C 35 % 90
April 27 °C 27 °C 40 % 86
May 27 °C 28 °C 55 % 78
June 28 °C 29 °C 55 % 78
July 28 °C 29 °C 48 % 72
August 29 °C 29 °C 49 % 70
September 29 °C 29 °C 60 % 70
October 29 °C 28 °C 55 % 70
November 28 °C 28 °C 46 % 72
December 27 °C 27 °C 36 % 78

When to think twice

August scores lowest with about 18 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 26.3 °C 34 mm 30 %
February 26.3 °C 24 mm 32 %
March 26.7 °C 24 mm 35 %
April 27.3 °C 36 mm 40 %
May 28.0 °C 66 mm 55 %
June 28.6 °C 54 mm 55 %
July 28.7 °C 79 mm 48 %
August 28.9 °C 101 mm 49 %
September 28.8 °C 124 mm 60 %
October 28.3 °C 132 mm 55 %
November 27.6 °C 103 mm 46 %
December 26.8 °C 60 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.