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Grand-Santi weather



Here is the Grand-Santi weather forecast. You will find below :
- Grand-Santi weather forecast for the next hours
- 7, 8 and 10 days weather forecast for Grand-Santi
- the lastest Grand-Santi weather conditions

Please note that the station providing the latest weather data is not necessarily in the center of Grand-Santi. Differences in prediction may appear according to the location of the weather station, especially in mountains where data usualy come from plains. For better accuracy at high altitude, you should check the snow weather forecast.

You will find below some links for the 8 days weather forecast near Grand-Santi :
 - weather forecast for towns close to Grand-Santi :
   - Papaichton weather forecast : town located at 57.95 km
   - Maripasoula weather forecast : town located at 79.92 km
   - Apatou weather forecast : town located at 97.84 km
   - Saint-Élie weather forecast : town located at 136.86 km
   - Saint-Laurent-du-Maroni weather forecast : town located at 140.50 km
   - Saül weather forecast : town located at 148.82 km
   - Mana weather forecast : town located at 168.90 km
   - Awala-Yalimapo weather forecast : town located at 170.61 km

 - weather forecast for department prefecture of Guyane : Weather of Cayenne
 - weather forecast for other cities of Guyane : Guyane
 - global weather on the map of France : weather france map

Must see: the photos of Grand-Santi, the map of Grand-Santi.
I like Grand-Santi !
   


7, 8 and 10 days weather forecast for Grand-Santi

Week Forecast:


The latest weather data for Grand-Santi were collected Friday, 18 September 2026 at 19:06 from the nearest observation station of Maripasoula.

Friday, September 18th

33°C     23°C

0%
 62%


Partly cloudy

Temperature Max: 33°C    Temperature Min: 23°C
Precipitation Probability: 0%
Percentage of sky occluded by clouds: 62%
Wind speed: 8 km/h West
Humidity: 76%°        UV Index: 8
Sunrise: 11:26     Sunset: 23:33

Saturday, September 19th

33°C     21°C

11%
 20%


Mostly clear

Temperature Max: 33°C    Temperature Min: 21°C
Precipitation Probability: 11% (Rain)
Percentage of sky occluded by clouds: 20%
Wind speed: 8 km/h West
Humidity: 73%°        UV Index: 10
Sunrise: 11:26     Sunset: 23:33

Sunday, September 20th

33°C     22°C

0%
 32%


Mostly clear

Temperature Max: 33°C    Temperature Min: 22°C
Precipitation Probability: 0%
Percentage of sky occluded by clouds: 32%
Wind speed: 8 km/h West
Humidity: 76%°        UV Index: 9
Sunrise: 11:25     Sunset: 23:32

Monday, September 21st

34°C     22°C

0%
 28%


Mostly clear

Temperature Max: 34°C    Temperature Min: 22°C
Precipitation Probability: 0%
Percentage of sky occluded by clouds: 28%
Wind speed: 9 km/h West
Humidity: 76%°        UV Index: 11
Sunrise: 11:25     Sunset: 23:32

Tuesday, September 22nd

33°C     22°C

54%
 26%


Drizzle

Temperature Max: 33°C    Temperature Min: 22°C
Precipitation Probability: 54% (Rain)
Percentage of sky occluded by clouds: 26%
Wind speed: 7 km/h West
Humidity: 76%°        UV Index: 10
Sunrise: 11:25     Sunset: 23:31

Wednesday, September 23rd

32°C     23°C

66%
 56%


Thunderstorms

Temperature Max: 32°C    Temperature Min: 23°C
Precipitation Probability: 66% (Rain)
Percentage of sky occluded by clouds: 56%
Wind speed: 6 km/h West
Humidity: 83%°        UV Index: 9
Sunrise: 11:25     Sunset: 23:31

Thursday, September 24th

33°C     23°C

58%
 61%


Drizzle

Temperature Max: 33°C    Temperature Min: 23°C
Precipitation Probability: 58% (Rain)
Percentage of sky occluded by clouds: 61%
Wind speed: 7 km/h West
Humidity: 81%°        UV Index: 9
Sunrise: 11:24     Sunset: 23:31

Friday, September 25th

35°C     23°C

48%
 54%


Thunderstorms

Temperature Max: 35°C    Temperature Min: 23°C
Precipitation Probability: 48% (Rain)
Percentage of sky occluded by clouds: 54%
Wind speed: 8 km/h West
Humidity: 77%°        UV Index: 10
Sunrise: 11:24     Sunset: 23:30

Saturday, September 26th

34°C     23°C

0%
 51%


Partly cloudy

Temperature Max: 34°C    Temperature Min: 23°C
Precipitation Probability: 0%
Percentage of sky occluded by clouds: 51%
Wind speed: 7 km/h West
Humidity: 75%°        UV Index: 11
Sunrise: 11:24     Sunset: 23:30

Sunday, September 27th

34°C     23°C

0%
 34%


Mostly clear

Temperature Max: 34°C    Temperature Min: 23°C
Precipitation Probability: 0%
Percentage of sky occluded by clouds: 34%
Wind speed: 8 km/h West
Humidity: 74%°        UV Index: 11
Sunrise: 11:24     Sunset: 23:29









Latest Grand-Santi weather conditions
The latest weather data for Grand-Santi were collected Friday, 18 September 2026 at 19:06 from the nearest observation station of Maripasoula.

Latest weather conditions collected Fri, 18 September at 19:06

33°C

1012.63 hPa
0 mm/h
 73%


Mostly cloudy

Temperature: 33°C
Pressure: 1012.63 mbars
Precipitation Intensity: 0 mm/h
Percentage of sky occluded by clouds: 73%
Wind speed: 12 km/h North-West
Wind Gust Speed: 28.9 km/h
Visibility: 37979.5 km    Humidity: 49%
Dew Point: 21°        UV Index: 6








Grand-Santi next hours weather forecast
This is the next hours weather forecast for Grand-Santi.

Sat, 19 Sep - 6am
      25°C

Grand-Santi weather:
Clear
0%      6%
Wind Speed: 7 kmh
Wind Gust: 19 kmh

Sat, 19 Sep - 7am
      24°C

Grand-Santi weather:
Clear
0%      3%
Wind Speed: 6 kmh
Wind Gust: 15 kmh

Sat, 19 Sep - 8am
      23°C

Grand-Santi weather:
Clear
0%      0%
Wind Speed: 6 kmh
Wind Gust: 14 kmh

Sat, 19 Sep - 9am
      22°C

Grand-Santi weather:
Clear
0%      0%
Wind Speed: 6 kmh
Wind Gust: 12 kmh

Sat, 19 Sep - 10am
      22°C

Grand-Santi weather:
Clear
0%      1%
Wind Speed: 6 kmh
Wind Gust: 12 kmh

Sat, 19 Sep - 11am
      21°C

Grand-Santi weather:
Clear
0%      1%
Wind Speed: 5 kmh
Wind Gust: 11 kmh

Sat, 19 Sep - 12pm
      22°C

Grand-Santi weather:
Clear
0%      9%
Wind Speed: 5 kmh
Wind Gust: 12 kmh

Sat, 19 Sep - 1pm
      24°C

Grand-Santi weather:
Mostly clear
0%      21%
Wind Speed: 7 kmh
Wind Gust: 17 kmh

Sat, 19 Sep - 2pm
      26°C

Grand-Santi weather:
Mostly clear
0%      35%
Wind Speed: 11 kmh
Wind Gust: 26 kmh

Sat, 19 Sep - 3pm
      28°C

Grand-Santi weather:
Mostly clear
0%      32%
Wind Speed: 11 kmh
Wind Gust: 27 kmh

Sat, 19 Sep - 4pm
      30°C

Grand-Santi weather:
Mostly clear
0%      36%
Wind Speed: 11 kmh
Wind Gust: 27 kmh

Sat, 19 Sep - 5pm
      31°C

Grand-Santi weather:
Mostly clear
0%      33%
Wind Speed: 10 kmh
Wind Gust: 26 kmh

Sat, 19 Sep - 6pm
      32°C

Grand-Santi weather:
Partly cloudy
0%      41%
Wind Speed: 10 kmh
Wind Gust: 26 kmh

Sat, 19 Sep - 7pm
      33°C

Grand-Santi weather:
Partly cloudy
0%      57%
Wind Speed: 10 kmh
Wind Gust: 26 kmh

Sat, 19 Sep - 8pm
      33°C

Grand-Santi weather:
Partly cloudy
0%      62%
Wind Speed: 10 kmh
Wind Gust: 25 kmh

Sat, 19 Sep - 9pm
      33°C

Grand-Santi weather:
Partly cloudy
0%      59%
Wind Speed: 10 kmh
Wind Gust: 23 kmh

Sat, 19 Sep - 10pm
      32°C

Grand-Santi weather:
Partly cloudy
1% Rain     54%
Wind Speed: 9 kmh
Wind Gust: 19 kmh

Sat, 19 Sep - 11pm
      30°C

Grand-Santi weather:
Partly cloudy
0%      46%
Wind Speed: 7 kmh
Wind Gust: 14 kmh

Sun, 20 Sep - 12am
      28°C

Grand-Santi weather:
Partly cloudy
0%      40%
Wind Speed: 6 kmh
Wind Gust: 16 kmh

Sun, 20 Sep - 1am
      27°C

Grand-Santi weather:
Mostly clear
0%      31%
Wind Speed: 6 kmh
Wind Gust: 17 kmh

Sun, 20 Sep - 2am
      27°C

Grand-Santi weather:
Mostly clear
0%      26%
Wind Speed: 6 kmh
Wind Gust: 16 kmh

Sun, 20 Sep - 3am
      26°C

Grand-Santi weather:
Mostly clear
0%      13%
Wind Speed: 9 kmh
Wind Gust: 19 kmh

Sun, 20 Sep - 4am
      26°C

Grand-Santi weather:
Clear
0%      11%
Wind Speed: 9 kmh
Wind Gust: 22 kmh

Sun, 20 Sep - 5am
      25°C

Grand-Santi weather:
Mostly clear
0%      14%
Wind Speed: 8 kmh
Wind Gust: 22 kmh

Attribution:             







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