Weather forecast for 10 days
Grand-Santi, French Guiana

Weather forecast for the weekend

Saturday, 14. Jun

Thunderstorms
06:25

18:50
-03
Thunderstorms
30°C / 23°C
  • Wind: 10km/h ENE
  • Humidity: 84%
  • Precip. probability: 80%
  • Precipitation: 12mm
  • UV index: 10
On Saturday, in Grand-Santi, thunderstorm risks remain elevated.
With a high probability, moderate precipitation is expected. Temperature is predicted to swing from a high of a blazing 30°C to a low of a moderately hot 23°C.
Expect the maximum temperature to remain consistent with the typical June high of 30.4°C.
Sunrise will be at 06:25 and sunset at 18:50; the daylight will last for 12h and 24min.

Sunday, 15. Jun

Thunderstorms
06:25

18:50
-03
Thunderstorms
30°C / 23°C
  • Wind: 10km/h E
  • Humidity: 83%
  • Precip. probability: 72%
  • Precipitation: 8mm
  • UV index: 10
On Sunday, 15th of June, electrical storms are a possibility.
The chance of rainfall is high. However, precipitation will be light. Temperatures will oscillate between a blazing 30°C at their highest and a moderately hot 23°C at their lowest.
On Sunday, the expected maximum temperature should be consistent with June's typical high of 30.4°C.
Sunrise will be at 06:25 and sunset at 18:50; the daylight will last for 12h and 24min.

Frequently asked questions

What is the weather forecast for Grand-Santi for Saturday?
On Saturday, thunderstorms are possible with changing conditions.
Will it rain on Saturday in Grand-Santi?
Moderate precipitation of 12mm is anticipated on Saturday in Grand-Santi. The likelihood of rainfall is high at 80%.
What will be the maximum temperature on Saturday?
On Saturday, the highest temperature will be 30°C, while the lowest temperature will be 23°C.
What is the weather forecast for Grand-Santi for Sunday?
On Sunday, in Grand-Santi, stormy skies are anticipated.
Will it rain on Sunday in Grand-Santi?
Light precipitation of 8mm is anticipated on Sunday. The chance of rainfall is 72%.
What will be the maximum temperature on Sunday?
On Sunday, the maximum temperature will be 30°C, while the minimum temperature will be 23°C.
What is the weather forecast for Grand-Santi for the next ten days?
In Grand-Santi, thunderstorms and rainy weather are expected daily for the next ten days.
Will it rain in the next ten days?
With daily precipitation varying from a maximum of 13mm to a minimum of 5mm, rainfall is predicted every day in Grand-Santi. Tuesday, with moderate precipitation of 13mm, will be the day with the most rainfall.
How hot will it be in the next ten days in Grand-Santi?
The maximum temperature will range between 30°C and 33°C, while the minimum temperature will be a persistent 23°C.
Combining with the humidity, the maximum feel-like temperature will vary between 39°C and 46°C.
What will be the hottest and the coldest days?
The hottest day will be next Monday, with a maximum of 33°C. The coldest days will be Tuesday, Saturday and Sunday, with a maximum of 30°C.

Long-term weather forecast

Mon09.Jun
  • 32°C
  • 23°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 11km/h E
  • Humidity: 84%
  • UV index: 10
  • Precip. probability: 71%
  • Precipitation: 7mm
  • 06:24 18:48 -03
Tue10.Jun
  • 30°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 9km/h E
  • Humidity: 84%
  • UV index: 8
  • Precip. probability: 82%
  • Precipitation: 13mm
  • 06:25 18:49 -03
Wed11.Jun
  • 31°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 9km/h ENE
  • Humidity: 82%
  • UV index: 11
  • Precip. probability: 82%
  • Precipitation: 12mm
  • 06:25 18:49 -03
Thu12.Jun
  • 32°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 9km/h ENE
  • Humidity: 80%
  • UV index: 11
  • Precip. probability: 78%
  • Precipitation: 8mm
  • 06:25 18:49 -03
Fri13.Jun
  • 32°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h ENE
  • Humidity: 80%
  • UV index: 11
  • Precip. probability: 75%
  • Precipitation: 9mm
  • 06:25 18:49 -03
Sat14.Jun
  • 30°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h ENE
  • Humidity: 84%
  • UV index: 10
  • Precip. probability: 80%
  • Precipitation: 12mm
  • 06:25 18:50 -03
Sun15.Jun
  • 30°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h E
  • Humidity: 83%
  • UV index: 10
  • Precip. probability: 72%
  • Precipitation: 8mm
  • 06:25 18:50 -03
Mon16.Jun
  • 33°C
  • 23°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h E
  • Humidity: 76%
  • UV index: 11
  • Precip. probability: 61%
  • Precipitation: 5mm
  • 06:26 18:50 -03
Tue17.Jun
  • 32°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h E
  • Humidity: 78%
  • UV index: 10
  • Precip. probability: 60%
  • Precipitation: 9mm
  • 06:26 18:50 -03
Wed18.Jun
  • 32°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h E
  • Humidity: 80%
  • UV index: 10
  • Precip. probability: 60%
  • Precipitation: 8mm
  • 06:26 18:50 -03
Over the next ten days, conditions will reflect that rainy weather and thunderstorms are anticipated daily.
Rainfall is expected day-to-day, with daily precipitation varying from a minimal 5mm to a maximum of 13mm.
Temperature differences will be unnoticeable in the forecast period ahead. Expected highs will hover between 30°C and 33°C, while the low will be a consistent 23°C.
The hottest day will be next Monday, with a maximum of 33°C; Tuesday, Saturday and Sunday, with the highest temperature of 30°C, will be the coldest days in Grand-Santi.
Taking the humidity into consideration, the maximum feel-like temperature may increase significantly and range between a very hot 39°C and a blazing hot 46°C.
Updated: Jun 9, 2025 @ 08:24:38 UTC
Published by: Weather Atlas | About Us
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