Monthly Climate
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Best time to visit Cartagena

May is the best time to visit Cartagena for general sightseeing, with average highs of 22 °C and about 3 wet days. The comfortable season runs roughly April to June. The sea stays above 20 °C from 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 May comfort 95/100
A beach holiday July sea 24 °C
The least cloud July 15 % average cloud cover
The least rain July 2 mm
Warmth August 29 °C
Cooler weather January 15 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 May 95 22 °C 3 68
2 October 94 23 °C 4 81
3 November 91 19 °C 5 54
4 April 91 19 °C 4 49
5 June 88 26 °C 1 90
6 March 84 17 °C 4 37
7 September 84 26 °C 4 97
8 December 82 16 °C 4 39
9 February 79 16 °C 4 31
10 January 78 15 °C 4 30
11 July 76 28 °C 0 99
12 August 73 29 °C 1 99

For a beach holiday

July scores highest, with a sea temperature of 24 °C and air temperatures around 28 °C. The sea is above 20 °C from June to October.

Month Sea Air Sunshine Beach score
January 15 °C 15 °C 40 % 30
February 15 °C 16 °C 40 % 31
March 15 °C 17 °C 41 % 37
April 16 °C 19 °C 42 % 49
May 18 °C 22 °C 39 % 68
June 21 °C 26 °C 25 % 90
July 24 °C 28 °C 15 % 99
August 26 °C 29 °C 23 % 99
September 24 °C 26 °C 38 % 97
October 22 °C 23 °C 43 % 81
November 19 °C 19 °C 43 % 54
December 16 °C 16 °C 43 % 39

When to think twice

August scores lowest with about 1 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 15.1 °C 28 mm 40 %
February 15.7 °C 21 mm 40 %
March 17.2 °C 29 mm 41 %
April 19.1 °C 26 mm 42 %
May 21.9 °C 20 mm 39 %
June 25.5 °C 7 mm 25 %
July 28.1 °C 2 mm 15 %
August 28.9 °C 7 mm 23 %
September 26.3 °C 38 mm 38 %
October 22.8 °C 33 mm 43 %
November 18.7 °C 32 mm 43 %
December 16.0 °C 25 mm 43 %

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.