Weather forecast for 10 days
Santo Antonio, São Tomé and Príncipe

Weather forecast for the weekend

Saturday, 17. May

Thunderstorms
05:19

17:33
GMT
Thunderstorms
28°C / 25°C
  • Wind: 16km/h SSW
  • Humidity: 82%
  • Precip. probability: 78%
  • Precipitation: 13mm
  • UV index: 8
On Saturday, in Santo Antonio, scattered thunderstorms are expected to form.
With a high probability, moderate precipitation is forecasted. The temperature will peak at a warm 28°C during the day, slightly dropping to a low of a moderately hot 25°C at night.
The forecasted daytime maximum should align with the typical May high of 28.8°C.
Sunrise will be at 05:19 and sunset at 17:33; the daylight will last for 12h and 14min.

Sunday, 18. May

Thunderstorms
05:19

17:33
GMT
Thunderstorms
27°C / 25°C
  • Wind: 16km/h SW
  • Humidity: 82%
  • Precip. probability: 85%
  • Precipitation: 16mm
  • UV index: 6
On Sunday, 18th of May, moderate to strong thunderstorms are in the outlook.
The chance of rain is high, and precipitation will be moderate. A subtle difference will be noticeable between the daytime peak temperature of a moderately hot 27°C and the nighttime low of a warm 25°C.
Forecasts show the temperature anticipated to reach the usual May high of 28.8°C.
Sunrise will be at 05:19 and sunset at 17:33; the daylight will last for 12h and 14min.

Frequently asked questions

What is the weather forecast for Santo Antonio for Saturday?
On Saturday, unstable weather may lead to more thunderstorms.
Will it rain on Saturday?
With a probability of 78%, moderate precipitation of 13mm is anticipated on Saturday.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 28°C, while the lowest temperature will be 25°C.
What is the weather forecast for Santo Antonio for Sunday?
On Sunday, storm clouds are expected to develop.
Will it rain on Sunday?
Moderate precipitation of 16mm is forecasted on Sunday. The likelihood of rainfall is high at 85%.
What will be the maximum temperature on Sunday?
On Sunday, the maximum temperature will be 27°C, while the minimum temperature will be 25°C.
What is the weather forecast for Santo Antonio for the next ten days?
In Santo Antonio, thunderstorms are anticipated daily for the next ten days.
Will it rain in the next ten days?
With daily precipitation varying from a maximum of 20mm to a minimum of 1mm, rain is predicted every day in Santo Antonio. Monday, with moderate precipitation of 20mm, will be the day with the most rainfall.
How warm will it be in the next ten days in Santo Antonio?
The maximum temperature will range between 27°C and 28°C, while the minimum temperature will be between 25°C and 26°C.
Including the humidity's impact, the maximum feel-like temperature will vary between 30°C and 32°C.
What will be the warmest and the coldest days?
The warmest days will be Wednesday through Saturday, next Wednesday and Thursday, with a maximum of 28°C. With a maximum temperature of 27°C, Sunday through next Tuesday will be the coldest days in Santo Antonio.

Long-term weather forecast

Tue13.May
  • min.
  • 25°C
Thunderstorms Late
Thunderstorms Late
  • Wind: 21km/h SSW
  • Humidity: 84%
  • UV index: 0
  • Precip. probability: 45%
  • Precipitation: 1mm
  • 05:19 17:33 GMT
Wed14.May
  • 28°C
  • 25°C
AM Thunderstorms
AM Thunderstorms
  • Wind: 14km/h S
  • Humidity: 82%
  • UV index: 10
  • Precip. probability: 46%
  • Precipitation: 7mm
  • 05:19 17:33 GMT
Thu15.May
  • 28°C
  • 26°C
AM Thunderstorms
AM Thunderstorms
  • Wind: 12km/h SW
  • Humidity: 82%
  • UV index: 8
  • Precip. probability: 53%
  • Precipitation: 4mm
  • 05:19 17:33 GMT
Fri16.May
  • 28°C
  • 25°C
AM Thunderstorms
AM Thunderstorms
  • Wind: 15km/h SSW
  • Humidity: 81%
  • UV index: 11
  • Precip. probability: 66%
  • Precipitation: 8mm
  • 05:19 17:33 GMT
Sat17.May
  • 28°C
  • 25°C
Thunderstorms
Thunderstorms
  • Wind: 16km/h SSW
  • Humidity: 82%
  • UV index: 8
  • Precip. probability: 78%
  • Precipitation: 13mm
  • 05:19 17:33 GMT
Sun18.May
  • 27°C
  • 25°C
Thunderstorms
Thunderstorms
  • Wind: 16km/h SW
  • Humidity: 82%
  • UV index: 6
  • Precip. probability: 85%
  • Precipitation: 16mm
  • 05:19 17:33 GMT
Mon19.May
  • 27°C
  • 25°C
Thunderstorms
Thunderstorms
  • Wind: 19km/h WSW
  • Humidity: 82%
  • UV index: 8
  • Precip. probability: 80%
  • Precipitation: 20mm
  • 05:19 17:33 GMT
Tue20.May
  • 27°C
  • 25°C
Thunderstorms
Thunderstorms
  • Wind: 15km/h SW
  • Humidity: 81%
  • UV index: 8
  • Precip. probability: 70%
  • Precipitation: 8mm
  • 05:19 17:33 GMT
Wed21.May
  • 28°C
  • 25°C
AM Thunderstorms
AM Thunderstorms
  • Wind: 16km/h S
  • Humidity: 78%
  • UV index: 10
  • Precip. probability: 46%
  • Precipitation: 3mm
  • 05:19 17:34 GMT
Thu22.May
  • 28°C
  • 25°C
AM Thunderstorms
AM Thunderstorms
  • Wind: 18km/h SSW
  • Humidity: 79%
  • UV index: 10
  • Precip. probability: 54%
  • Precipitation: 4mm
  • 05:19 17:34 GMT
Over the next ten days, thunderstorms are anticipated daily.
Rain is expected day-to-day, with daily precipitation varying from a minimal 1mm to a maximum of 20mm.
The maximum temperature will be almost identical over the next several days. The maximum temperature will vary between 27°C and 28°C, while the nighttime low will be also mostly stable, as night temperatures will lie between 25°C and 26°C.
The warmest days in Santo Antonio, São Tomé and Príncipe, will be Wednesday through Saturday, next Wednesday and Thursday, with a maximum of 28°C; Sunday through next Tuesday, with the highest temperature of 27°C, will be the coldest days in Santo Antonio, São Tomé and Príncipe.
Combining with the humidity, the maximum feel-like temperature may increase and vary between a hot 30°C and a humid 32°C.
Updated: May 13, 2025 @ 20:18:50 UTC
Published by: Weather Atlas | About Us
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