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San Juan weather in May 2021
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- 29°C max day temperature
29 - 8 hours of sunshine per day
- 16 days with some rainfall
16 - 22°C min night temperature
22 - 13 hours of daylight per day
13 - High heat & humidity
H - 182 mm of monthly rainfall
182 - 11+ (Extreme) UV index
11 - 27°C sea temperature
27
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The May weather guide for San Juan, Puerto Rico 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.
How hot is it in San Juan in May?
Daytime temperatures usually reach 29°C in San Juan in May with high heat and humidity, falling to 22°C at night.
How sunny is it in San Juan in May?
There are normally 8 hours of bright sunshine each day in San Juan in May - that's 63% of daylight hours.
How warm is the sea around San Juan in May?
The average sea temperature around San Juan in May is 27°C.
Does it rain in San Juan in May?
There are usually 16 days with some rain in San Juan in May and the average monthly rainfall is 182mm.
San Juan sunrise & sunset times for May 2021
Browse the sunrise & sunset times for San Juan in May 2021. Select a month to view San Juan sunrise & sunset times for the next twelve months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st May 2021 | 05:57 | 18:46 |
| Sunday, 16th May 2021 | 05:50 | 18:51 |
| Monday, 31st May 2021 | 05:47 | 18:57 |
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Metric (°C / mm) | Imperial (°F / inches)
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Where is hot in Puerto Rico in May for 2021/2022?
Below are average maximum temperatures at popular destinations in Puerto Rico in May. Select a destination to see more weather parameters.
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