Monthly Climate
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Best time to visit Ilhéus

August is the best time to visit Ilhéus for general sightseeing, with average highs of 25 °C and about 18 wet days. The comfortable season runs roughly May 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 70/100
A beach holiday October sea 26 °C
The least cloud September 51 % average cloud cover
The least rain September 70 mm
Warmth March 29 °C
Cooler weather July 25 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 August 70 25 °C 18 72
2 September 69 26 °C 15 74
3 July 66 25 °C 20 72
4 June 65 26 °C 19 73
5 October 61 27 °C 17 75
6 May 60 27 °C 19 73
7 November 56 28 °C 19 75
8 December 54 28 °C 18 73
9 April 53 28 °C 22 72
10 February 52 29 °C 19 71
11 January 51 29 °C 20 72
12 March 50 29 °C 22 70

For a beach holiday

October scores highest, with a sea temperature of 26 °C and air temperatures around 27 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 28 °C 29 °C 61 % 72
February 28 °C 29 °C 58 % 71
March 28 °C 29 °C 61 % 70
April 28 °C 28 °C 57 % 72
May 27 °C 27 °C 56 % 73
June 26 °C 26 °C 54 % 73
July 26 °C 25 °C 53 % 72
August 25 °C 25 °C 52 % 72
September 25 °C 26 °C 51 % 74
October 26 °C 27 °C 57 % 75
November 27 °C 28 °C 69 % 75
December 27 °C 28 °C 66 % 73

When to think twice

March scores lowest with about 22 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 28.8 °C 105 mm 61 %
February 28.9 °C 91 mm 58 %
March 28.9 °C 121 mm 61 %
April 28.1 °C 134 mm 57 %
May 26.8 °C 117 mm 56 %
June 25.6 °C 102 mm 54 %
July 24.9 °C 99 mm 53 %
August 25.1 °C 75 mm 52 %
September 26.0 °C 70 mm 51 %
October 27.1 °C 96 mm 57 %
November 27.7 °C 149 mm 69 %
December 28.5 °C 119 mm 66 %

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.