Bahía Blanca Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bahía Blanca.
Climate overview of Bahía Blanca
Temperatures in Bahía Blanca, Buenos Aires Province, Argentina, vary greatly throughout the year. January is the hottest month at 30°C (86°F), while July is the coldest at 13°C (55°F).
With around 646 mm (25 in) of annual rainfall, the city has moderate precipitation levels. February is the wettest month and June the driest. It also has a distinct dry season from June to August, with warm summers and mild winters. The most sunshine falls in January, with an average of 10.0 hours of daily sunshine.
Bahía Blanca Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bahía Blanca - and find the best time to visit.
Monthly Temperature in Bahía Blanca
The climate in Bahía Blanca is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 30°C (86°F) in January to a moderate 13°C (55°F) in the coolest month, July.
Nights vary from 18°C (64°F) in January to around 5°C (41°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bahía Blanca
Generally, Bahía Blanca receives mid-range precipitation levels, with 646 mm (25 in) annually. The climate in Bahía Blanca shows significant variation throughout the year. Expect moderate rainfall in February, the wettest month, with an average of 73 mm (2.9 in) of precipitation over 6 rainy days.
In contrast, the driest month June offers drier and sunnier days, with around 32 mm (1.3 in) of rainfall over 5 rainy days. For more details, please visit our Bahía Blanca Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bahía Blanca
For those who appreciate different seasons, Bahía Blanca serves as an ideal destination. Expect longer, more sun-filled days in January with an average of 10.0 hours of sunshine daily, and embrace the darker days in June, offering only 3.7 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Bahía Blanca
The mean water temperature over the year ranges from 11°C (52°F) in July to 20°C (68°F) in January.
Water temperature over the year
Humidity in Bahía Blanca by Month
The relative humidity is high throughout the year in Bahía Blanca.
The city experiences its highest humidity in June, reaching 74%. In December, the humidity drops to its lowest level at 53%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Bahía Blanca
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: February, March, April, October, November and December
- Warmest weather: January and February
- Most sunshine: January
- Best for swimming: January and December, with water temperatures around 20°C (68°F).
- Seasonal pattern: A distinct dry season from June to August, with warm summers and mild winters
Frequently asked questions about the climate in Bahía Blanca
What is the best time to visit Bahía Blanca?
February, March, April, October, November and December typically offer the most optimal weather in Bahía Blanca. In contrast, July tends to have less optimal conditions. Bahía Blanca has a distinct dry season from June to August, with warm summers and mild winters.
What temperatures can I expect in Bahía Blanca?
Daytime highs range from 13°C (55°F) in July to 30°C (86°F) in January. Nighttime lows range from 5°C (41°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Bahía Blanca get?
Annual rainfall is around 646 mm (25 in). February is the wettest month with 73 mm (2.9 in), while June is the driest with 32 mm (1.3 in).
How sunny is Bahía Blanca?
Bahía Blanca receives around 2,322 hours of sunshine per year. January is the sunniest month with 301 hours, while June is the cloudiest with just 110 hours. Overall, Bahía Blanca enjoys abundant sunshine.
Bahía Blanca 3-Day Forecast
Bahía Blanca on the map
Bahía Blanca is highlighted - select any city to see its climate.
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