Monte Hermoso Weather in May
What's the weather like in Monte Hermoso (Buenos Aires) in May 2026?
The climate in Monte Hermoso during May can be summarized as mild and reasonably dry.
May is in the fall / autumn in Monte Hermoso and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 5°C (41°F) is normal.
| Daytime temperature | 16.5°C 61.7°F |
|---|---|
| Nightly temperature | 5.1°C 41.2°F |
| Average temperature | 10.8°C 51.4°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 45 mm 1.8 ins |
| Rainy days | 7 days |
| Sea temperature | 16.1°C 61°F |
| Humidity | 76% |
| Windspeed | 14kph 9 mph |
On average May is the 4th driest month of the year in Monte Hermoso with around 45mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
May temperatures in Monte Hermoso
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 Monte Hermoso in May 2025.
Other monthly averages
Monte Hermoso weather stats
| Hottest month: | January | 29.1°C 84.4°F |
|---|---|---|
| Driest month: | August | 30mm 1.2ins |
| Sunniest month: | February | 10.4hrs |
| Coldest month: | July | 12.5°C 54.5°F |
| Wettest month: | March | 87mm 3.4ins |
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