Santiago weather in May 2026

Q: How hot is it in Santiago in May?

Daytime temperatures usually reach 30°C in Santiago in May with high heat and humidity, falling to 23°C at night.

Q: How sunny is it in Santiago in May?

There are normally 8 hours of bright sunshine each day in Santiago in May - that's 61% of daylight hours.

Q: How warm is the sea around Santiago in May?

The average sea temperature around Santiago in May is 27°C.

Q: Does it rain in Santiago in May?

There are usually 13 days with some rain in Santiago in May and the average monthly rainfall is 131mm.

Expect daytime maximum temperatures of 31°C in Santiago, Dominican Republic in May and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 170 mm of rainfall in the month.

31
31°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
21
21°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
170
170 mm of monthly rainfall
11
11+ (Extreme) UV index

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The May weather guide for Dominican Republic (Santiago) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)