Santo Antonio weather in January 2026

Expect daytime maximum temperatures of 29°C in Santo Antonio in January and high heat and humidity based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 133 mm of rainfall in the month.

  • 29°C maximum daytime temperature in January in Santo Antonio29
    29°C max day temperature
  • 4 hours of sunshine per day
  • 11 days with some rainfall in January in Santo Antonio11
    11 days with some rainfall
  • 23°C minimum night-time temperature in January in Santo Antonio23
    23°C min night temperature
  • 12 hours of daylight per day in January in Santo Antonio12
    12 hours of daylight per day
  • High heat & humidity in January in Santo AntonioH
    High heat & humidity
  • 133 mm monthly rainfall in January in Santo Antonio133
    133 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Santo Antonio11
    11+ (Extreme) UV index
  • 28°C sea temperature in January in Santo Antonio28
    28°C sea temperature

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The January 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 January?

Daytime temperatures usually reach 29°C in Santo Antonio in January with high heat and humidity, falling to 23°C at night.

How sunny is it in Santo Antonio in January?

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

How warm is the sea around Santo Antonio in January?

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

Does it rain in Santo Antonio in January?

There are usually 11 days with some rain in Santo Antonio in January and the average monthly rainfall is 133mm.

Santo Antonio January sunrise & sunset times

Browse the sunrise and sunset times for Santo Antonio in January 2026. Select a month to view Santo Antonio sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 05:33 17:35
Friday, 16th January 2026 05:39 17:41
Saturday, 31st January 2026 05:42 17:45

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