San Jose weather in May 2025

Expect 77°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in San Jose in May. Check more long-term weather averages for San Jose in May before you book your next holiday to Costa Rica in 2025/2026.

  • 77°F maximum daytime temperature in May in San Jose77
    77°F max day temperature
  • 7 hours of sunshine per day
  • 19 days with some rainfall in May in San Jose19
    19 days with some rainfall
  • 63°F minimum night-time temperature in May in San Jose63
    63°F min night temperature
  • 13 hours of daylight per day in May in San Jose13
    13 hours of daylight per day
  • Low heat & humidity in May in San JoseL
    Low heat & humidity
  • 10.3 inches monthly rainfall in May in San Jose10.3
    10.3 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in San Jose11
    11+ (Extreme) UV index

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The May weather guide for Costa Rica (San Jose) 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)  |  Imperial (°F)

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How hot is it in San Jose in May?

Daytime temperatures usually reach 77°F in San Jose in May with low heat and humidity, falling to 63°F at night.

How sunny is it in San Jose in May?

There are normally 7 hours of bright sunshine each day in San Jose in May - that's 52% of daylight hours.

Does it rain in San Jose in May?

There are usually 19 days with some rain in San Jose in May and the average monthly rainfall is 10.3 inches.

San Jose May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:19 17:48
Friday, 16th May 2025 05:15 17:50
Saturday, 31st May 2025 05:14 17:54

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