Monthly Climate
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Best time to visit São José

August is the best time to visit São José for general sightseeing, with average highs of 21 °C and about 9 wet days. The comfortable season runs roughly April to October. The sea stays above 20 °C from October to May.

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 87/100
A beach holiday April sea 24 °C
The least cloud July 59 % average cloud cover
The least rain August 89 mm
Warmth February 28 °C
Cooler weather July 20 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 August 87 21 °C 9 49
2 May 87 22 °C 10 67
3 June 86 21 °C 9 55
4 July 85 20 °C 9 46
5 September 83 22 °C 13 48
6 April 79 25 °C 12 78
7 October 79 23 °C 15 56
8 November 75 25 °C 16 67
9 December 64 27 °C 18 74
10 March 62 27 °C 19 75
11 January 57 28 °C 22 75
12 February 57 28 °C 20 75

For a beach holiday

April scores highest, with a sea temperature of 24 °C and air temperatures around 25 °C. The sea is above 20 °C from October to May.

Month Sea Air Sunshine Beach score
January 26 °C 28 °C 74 % 75
February 26 °C 28 °C 72 % 75
March 25 °C 27 °C 68 % 75
April 24 °C 25 °C 62 % 78
May 22 °C 22 °C 60 % 67
June 20 °C 21 °C 61 % 55
July 18 °C 20 °C 59 % 46
August 18 °C 21 °C 61 % 49
September 19 °C 22 °C 73 % 48
October 21 °C 23 °C 79 % 56
November 22 °C 25 °C 74 % 67
December 24 °C 27 °C 74 % 74

When to think twice

February scores lowest with about 20 wet days and highs near 28 °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 27.9 °C 221 mm 74 %
February 27.9 °C 215 mm 72 %
March 27.0 °C 146 mm 68 %
April 25.3 °C 93 mm 62 %
May 22.4 °C 111 mm 60 %
June 20.7 °C 99 mm 61 %
July 19.9 °C 91 mm 59 %
August 20.8 °C 89 mm 61 %
September 21.5 °C 150 mm 73 %
October 23.3 °C 143 mm 79 %
November 24.8 °C 143 mm 74 %
December 27.0 °C 164 mm 74 %

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.