Chaitén Weather in May
What's the weather like in Chaitén (Los Lagos) in May 2026?
The climate in Chaitén during May can be summarized as cool and very wet.
May is in the fall / autumn in Chaitén and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (52°F), whilst at night 5°C (40°F) is normal.
| Daytime temperature | 11.2°C 52.1°F |
|---|---|
| Nightly temperature | 4.7°C 40.4°F |
| Average temperature | 7.9°C 46.2°F |
| Daily sunshine | 4 hrs |
| Avg rainfall | 284 mm 11.2 ins |
| Rainy days | 11 days |
| Sea temperature | 11.7°C 53.1°F |
| Humidity | 87% |
| Windspeed | 13.3kph 8 mph |
On average May is the 3rd wettest month of the year in Chaitén with around 284mm 11.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 4 hours of sunshine per day.
May temperatures in Chaitén
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 Chaitén in May 2025.
Other monthly averages
Chaitén weather stats
| Hottest month: | January | 18.2°C 64.8°F |
|---|---|---|
| Driest month: | February | 97mm 3.8ins |
| Sunniest month: | February | 9.8hrs |
| Coldest month: | July | 8.3°C 46.9°F |
| Wettest month: | July | 290mm 11.4ins |
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