San Antonio Oeste Weather in May
What's the weather like in San Antonio Oeste (Río Negro) in May 2026?
The climate in San Antonio Oeste during May can be summarized as mild and dry.
May is in the fall / autumn in San Antonio Oeste and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 7°C (44°F) is normal.
| Daytime temperature | 17.2°C 62.9°F |
|---|---|
| Nightly temperature | 6.5°C 43.6°F |
| Average temperature | 11.8°C 53.2°F |
| Daily sunshine | 5.4 hrs |
| Avg rainfall | 26 mm 1 ins |
| Rainy days | 4 days |
| Sea temperature | 14.9°C 58.9°F |
| Humidity | 67% |
| Windspeed | 14kph 9 mph |
On average May is the 2nd wettest month of the year in San Antonio Oeste with around 26mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.4 hours of sunshine per day.
May temperatures in San Antonio Oeste
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Antonio Oeste in May 2025.
Other monthly averages
San Antonio Oeste weather stats
| Hottest month: | January | 29.9°C 85.8°F |
|---|---|---|
| Driest month: | August | 16mm 0.6ins |
| Sunniest month: | January | 11.7hrs |
| Coldest month: | June | 13.1°C 55.6°F |
| Wettest month: | March | 35mm 1.4ins |
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