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: 11km/h ENE
  • Humidity: 84%
  • Precip. probability: 81%
  • Precipitation: 15mm
  • UV index: 10
On Saturday, 14th of June, stormy skies are anticipated.
The chance of rainfall is high, and precipitation will be moderate. The highest temperature will be a tropical 30°C, while the lowest temperature will be a moderately hot 23°C.
June's standard high of 30.4°C is predicted to be reached during the day.
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
31°C / 23°C
  • Wind: 11km/h E
  • Humidity: 81%
  • Precip. probability: 89%
  • Precipitation: 7mm
  • UV index: 11
On Sunday, in Grand-Santi, thunderstorms are possible with changing conditions.
The likelihood of precipitation is high. However, the rainfall will be light. The temperature will vary between a maximum of a humid 31°C and a minimum of a moderately hot 23°C.
Sunday's maximum temperature is expected to reflect the standard 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.

Frequently asked questions

What is the weather forecast for Grand-Santi for Saturday?
On Saturday, wet and stormy weather is expected.
Will it rain on Saturday?
Moderate precipitation of 15mm is forecasted on Saturday. The possibility of rainfall is high at 81%.
What will be the maximum temperature on Saturday?
On Saturday, the maximum temperature will be 30°C, while the minimum temperature will be 23°C.
What is the weather forecast for Grand-Santi for Sunday?
On Sunday, stormy skies are anticipated.
Will it rain on Sunday?
Light precipitation of 7mm is predicted on Sunday. The chance of rainfall is high at 89%.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 31°C, while the lowest temperature will be 23°C.
What is the weather forecast for Grand-Santi for the next ten days?
In Grand-Santi, predominantly unstable and occasionally cloud-filled weather is expected for the next ten days.
Will it rain in the next ten days?
In Grand-Santi, rainfall is forecasted almost every day for the next ten days. Saturday, with moderate precipitation of 15mm, 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 vary 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 range between 39°C and 47°C.
What will be the hottest and the coldest days?
The hottest days will be Monday through next Wednesday, with a maximum of 33°C. Saturday will be the coldest day, with a maximum temperature of 30°C.

Long-term weather forecast

Wed11.Jun
  • 31°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h ENE
  • Humidity: 85%
  • UV index: 8
  • Precip. probability: 77%
  • Precipitation: 8mm
  • 06:25 18:49 -03
Thu12.Jun
  • 32°C
  • 23°C
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Wind: 10km/h E
  • Humidity: 77%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0mm
  • 06:25 18:49 -03
Fri13.Jun
  • 32°C
  • 23°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 10km/h ENE
  • Humidity: 79%
  • UV index: 11
  • Precip. probability: 55%
  • Precipitation: 5mm
  • 06:25 18:49 -03
Sat14.Jun
  • 30°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 11km/h ENE
  • Humidity: 84%
  • UV index: 10
  • Precip. probability: 81%
  • Precipitation: 15mm
  • 06:25 18:50 -03
Sun15.Jun
  • 31°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 11km/h E
  • Humidity: 81%
  • UV index: 11
  • Precip. probability: 89%
  • Precipitation: 7mm
  • 06:25 18:50 -03
Mon16.Jun
  • 33°C
  • 23°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 11km/h E
  • Humidity: 77%
  • UV index: 11
  • Precip. probability: 71%
  • Precipitation: 5mm
  • 06:26 18:50 -03
Tue17.Jun
  • 33°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h ESE
  • Humidity: 76%
  • UV index: 11
  • Precip. probability: 70%
  • Precipitation: 6mm
  • 06:26 18:50 -03
Wed18.Jun
  • 33°C
  • 23°C
PM Thunderstorms
PM Thunderstorms
  • Wind: 10km/h E
  • Humidity: 75%
  • UV index: 11
  • Precip. probability: 60%
  • Precipitation: 7mm
  • 06:26 18:50 -03
Thu19.Jun
  • 32°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 10km/h ESE
  • Humidity: 78%
  • UV index: 11
  • Precip. probability: 60%
  • Precipitation: 8mm
  • 06:26 18:51 -03
Fri20.Jun
  • 31°C
  • 23°C
Thunderstorms
Thunderstorms
  • Wind: 9km/h ESE
  • Humidity: 80%
  • UV index: 10
  • Precip. probability: 60%
  • Precipitation: 8mm
  • 06:27 18:51 -03
Over the next ten days, conditions will reflect that primarily unstable and occasionally overcast weather is anticipated.
Rainfall is anticipated on Wednesday, Friday through next Friday.
The variation in maximum temperature will be negligible during the next few days. Maximum temperatures will fall between 30°C and 33°C, while the minimum temperature will stay steady at 23°C.
The hottest days will be Monday through next Wednesday, with a maximum of 33°C; with the highest temperature of 30°C, Saturday will be the coldest day.
Combining with the humidity, the maximum feel-like temperature may increase significantly and vary between a sweltering 39°C and a life-threatening 47°C.
Updated: Jun 11, 2025 @ 07:46:20 UTC
Published by: Weather Atlas | About Us
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