Santo Antonio weather in May 2025

Expect 29°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Santo Antonio in May. Check more long-term weather averages for Santo Antonio in May before you book your next holiday to Sao Tome & Principe in 2025/2026.

  • 29°C maximum daytime temperature in May in Santo Antonio29
    29°C max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in May in Santo Antonio16
    16 days with some rainfall
  • 22°C minimum night-time temperature in May in Santo Antonio22
    22°C min night temperature
  • 12 hours of daylight per day in May in Santo Antonio12
    12 hours of daylight per day
  • High heat & humidity in May in Santo AntonioH
    High heat & humidity
  • 319 mm monthly rainfall in May in Santo Antonio319
    319 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Santo Antonio11
    11+ (Extreme) UV index
  • 28°C sea temperature in May in Santo Antonio28
    28°C sea temperature

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The May weather guide for Sao Tome & Principe (Santo Antonio) 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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How hot is it in Santo Antonio in May?

Daytime temperatures usually reach 29°C in Santo Antonio in May with high heat and humidity, falling to 22°C at night.

How sunny is it in Santo Antonio in May?

There are normally 4 hours of bright sunshine each day in Santo Antonio in May - that's 34% of daylight hours.

How warm is the sea around Santo Antonio in May?

The average sea temperature around Santo Antonio in May is 28°C.

Does it rain in Santo Antonio in May?

There are usually 16 days with some rain in Santo Antonio in May and the average monthly rainfall is 319mm.

Santo Antonio May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:22 17:33
Friday, 16th May 2025 05:21 17:33
Saturday, 31st May 2025 05:22 17:34

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