Monthly Climate
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Best time to visit Bahía Blanca

April is the best time to visit Bahía Blanca for general sightseeing, with average highs of 21 °C and about 6 wet days. The comfortable season runs roughly March to April. The sea stays above 20 °C from December 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 April comfort 91/100
A beach holiday February sea 22 °C
The least cloud January 33 % average cloud cover
The least rain June 26 mm
Warmth January 30 °C
Cooler weather July 13 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 April 91 21 °C 6 52
2 November 88 25 °C 7 67
3 October 88 21 °C 8 41
4 March 88 25 °C 6 80
5 September 80 18 °C 6 31
6 December 79 28 °C 6 84
7 February 79 28 °C 7 87
8 May 78 17 °C 6 29
9 January 72 30 °C 7 85
10 August 72 15 °C 5 26
11 June 65 13 °C 4 22
12 July 62 13 °C 5 21

For a beach holiday

February scores highest, with a sea temperature of 22 °C and air temperatures around 28 °C. The sea is above 20 °C from December to March.

Month Sea Air Sunshine Beach score
January 22 °C 30 °C 33 % 85
February 22 °C 28 °C 34 % 87
March 21 °C 25 °C 37 % 80
April 17 °C 21 °C 45 % 52
May 14 °C 17 °C 54 % 29
June 11 °C 13 °C 53 % 22
July 8.7 °C 13 °C 53 % 21
August 8.6 °C 15 °C 51 % 26
September 11 °C 18 °C 50 % 31
October 15 °C 21 °C 48 % 41
November 18 °C 25 °C 41 % 67
December 21 °C 28 °C 35 % 84

When to think twice

July scores lowest with about 5 wet days and highs near 13 °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 29.9 °C 56 mm 33 %
February 28.1 °C 64 mm 34 %
March 25.4 °C 67 mm 37 %
April 20.7 °C 56 mm 45 %
May 16.7 °C 39 mm 54 %
June 13.4 °C 26 mm 53 %
July 12.8 °C 33 mm 53 %
August 15.2 °C 34 mm 51 %
September 17.7 °C 45 mm 50 %
October 20.7 °C 63 mm 48 %
November 24.5 °C 62 mm 41 %
December 28.2 °C 60 mm 35 %

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.