La Unión Weather in May
What's the weather like in La Unión (Los Lagos) in May 2026?
The climate in La Unión during May can be summarized as cool and very wet.
May is in the fall / autumn in La Unión and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 5°C (41°F) is normal.
| Daytime temperature | 12.1°C 53.7°F |
|---|---|
| Nightly temperature | 5.2°C 41.3°F |
| Average temperature | 8.6°C 47.5°F |
| Daily sunshine | 4.4 hrs |
| Avg rainfall | 222 mm 8.7 ins |
| Rainy days | 11 days |
| Sea temperature | 13°C 55.3°F |
| Humidity | 89% |
| Windspeed | 11.9kph 7 mph |
On average May is the 2nd wettest month of the year in La Unión with around 222mm 8.7 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 4.4 hours of sunshine per day.
May temperatures in La Unión
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 La Unión in May 2025.
Other monthly averages
La Unión weather stats
| Hottest month: | January | 20.5°C 68.9°F |
|---|---|---|
| Driest month: | January | 45mm 1.8ins |
| Sunniest month: | February | 10.5hrs |
| Coldest month: | July | 9.5°C 49.1°F |
| Wettest month: | June | 240mm 9.4ins |
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