Monthly Climate
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Best time to visit San Antonio

November is the best time to visit San Antonio for general sightseeing, with average highs of 22 °C and about 7 wet days. The comfortable season runs roughly February to March.

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 November comfort 92/100
The least cloud October 41 % average cloud cover
The least rain August 50 mm
Warmth August 35 °C
Cooler weather January 18 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 November 92 22 °C 7
2 March 88 24 °C 9
3 February 87 20 °C 8
4 October 82 28 °C 8
5 December 81 18 °C 8
6 April 81 27 °C 9
7 January 79 18 °C 7
8 May 66 30 °C 11
9 September 65 32 °C 8
10 July 56 35 °C 6
11 June 56 33 °C 10
12 August 56 35 °C 6

When to think twice

August scores lowest with about 6 wet days and highs near 35 °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 17.6 °C 57 mm 55 %
February 20.2 °C 60 mm 57 %
March 23.5 °C 80 mm 57 %
April 27.2 °C 80 mm 55 %
May 30.2 °C 111 mm 57 %
June 33.1 °C 72 mm 47 %
July 34.6 °C 53 mm 45 %
August 35.2 °C 50 mm 42 %
September 31.8 °C 84 mm 44 %
October 27.7 °C 84 mm 41 %
November 22.0 °C 68 mm 50 %
December 18.1 °C 63 mm 55 %

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.