Santiago Weather in May
What's the weather like in Santiago (Santiago) in May 2026?
The climate in Santiago during May can be summarized as mild and reasonably dry.
May is in the fall / autumn in Santiago and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 6°C (43°F) is normal.
| Daytime temperature | 15.9°C 60.6°F |
|---|---|
| Nightly temperature | 5.9°C 42.6°F |
| Average temperature | 10.9°C 51.6°F |
| Daily sunshine | 4.7 hrs |
| Avg rainfall | 35 mm 1.4 ins |
| Rainy days | 3 days |
| Sea temperature | 15.1°C 59.2°F |
| Humidity | 77% |
| Windspeed | 7.6kph 5 mph |
On average May is the 4th wettest month of the year in Santiago with around 35mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.7 hours of sunshine per day.
May temperatures in Santiago
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 Santiago in May 2025.
Other monthly averages
Santiago weather stats
| Hottest month: | January | 25.9°C 78.6°F |
|---|---|---|
| Driest month: | January | 1mm 0ins |
| Sunniest month: | January | 11.3hrs |
| Coldest month: | July | 12.8°C 55°F |
| Wettest month: | July | 92mm 3.6ins |
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