Costa Rica weather in May 2025

Expect daytime maximum temperatures of 25°C in Costa Rica in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 19 days with some rainfall and typically 261 mm of rainfall in the month.

  • 25°C maximum daytime temperature in May in Costa Rica (San Jose)25
    25°C max day temperature
  • 7 hours of sunshine per day
  • 19 days with some rainfall in May in Costa Rica (San Jose)19
    19 days with some rainfall
  • 17°C minimum night-time temperature in May in Costa Rica (San Jose)17
    17°C min night temperature
  • 13 hours of daylight per day in May in Costa Rica (San Jose)13
    13 hours of daylight per day
  • Low heat & humidity in May in Costa Rica (San Jose)L
    Low heat & humidity
  • 261 mm monthly rainfall in May in Costa Rica (San Jose)261
    261 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Costa Rica (San Jose)11
    11+ (Extreme) UV index

More about Costa Rica

Costa Rica by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Costa Rica

TUI discount code: up to £300 off 2025/2026 holidays

  • Save up to £300 on package holidays in 2025/2026
  • Book in TUI sale. Discount varies by spend. T&Cs apply
  • Travel between 1st May 2025 & 31st Oct 2026 (inclusive)
Show discount codeShow discount code ******ALE
Redeem TUI discount code >>

Expires at 10:00 on Friday 28th Feb 2025 · View all TUI offers

TUITUI deal finder

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.

Top Costa Rica destinations

Below are average maximum temperatures at popular countries, regions and places in Costa Rica in May. Select a holiday destination to see more weather parameters.

All Costa Rica destinations

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

Back to top

More about Costa Rica

How hot is it in Costa Rica in May?

Daytime temperatures usually reach 25°C in San Jose, Costa Rica in May with low heat and humidity, falling to 17°C at night.

How sunny is it in Costa Rica in May?

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

Does it rain in Costa Rica in May?

There are usually 19 days with some rain in San Jose, Costa Rica in May and the average monthly rainfall is 261mm.

Costa Rica May sunrise & sunset times

Browse the sunrise and sunset times for Costa Rica in May 2025. Select a month to view Costa Rica sunrise and sunset times for the next 12 months. The Costa Rica sunrise and sunset times shown below are for San Jose.

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

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^