San Juan weather in May 2025

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in San Juan in May. Check more long-term weather averages for San Juan in May before you book your next holiday to Dominican Republic in 2025/2026.

  • 31°C maximum daytime temperature in May in San Juan31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in May in San Juan12
    12 days with some rainfall
  • 19°C minimum night-time temperature in May in San Juan19
    19°C min night temperature
  • 13 hours of daylight per day in May in San Juan13
    13 hours of daylight per day
  • High heat & humidity in May in San JuanH
    High heat & humidity
  • 189 mm monthly rainfall in May in San Juan189
    189 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in San Juan11
    11+ (Extreme) UV index

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The May weather guide for Dominican Republic (San Juan) 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)

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More about the Dominican Republic

How hot is it in San Juan in May?

Daytime temperatures usually reach 31°C in San Juan in May with high heat and humidity, falling to 19°C at night.

How sunny is it in San Juan in May?

There are normally 7 hours of bright sunshine each day in San Juan in May - that's 56% of daylight hours.

Does it rain in San Juan in May?

There are usually 12 days with some rain in San Juan in May and the average monthly rainfall is 189mm.

San Juan May sunrise & sunset times

Browse the sunrise and sunset times for San Juan in May 2025. Select a month to view San Juan sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:17 19:07
Friday, 16th May 2025 06:10 19:12
Saturday, 31st May 2025 06:07 19:18

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