- Compare fares from leading airlines to find best price
- Save EXTRA £10 on flights to Puerto Rico with Kiwi.com
- Minimum spend £150 on Kiwi.com promo code
San Juan weather in May 2020
- 2929°C max day temperature
- 1616 days with some rainfall
- 2222°C min night temperature
- 1313 hours of daylight per day
- HHigh heat & humidity
- 182182 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2727°C sea temperature
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 2020
Browse the sunrise & sunset times for San Juan in May 2020. Select a month to view San Juan sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Friday, 1st May 2020||05:57||18:46|
|Saturday, 16th May 2020||05:50||18:52|
|Sunday, 31st May 2020||05:47||18:57|
- Save up to 50% on adventure holidays & tours
- Browse the best deals or search by destination & date
- Book tours to Europe, Asia, Africa & the Americas
Metric (°C / mm) | Imperial (°F / inches)
Discover more about Puerto Rico
Where's hot in Puerto Rico in May?
Below are average maximum temperatures at popular destinations in Puerto Rico in May. Select a destination to see more weather parameters.
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.