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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 Monday, 15 December 2025 at 19:07 from the nearest observation station of Maripasoula.

Monday, December 15th

28°C     23°C

86%
 93%


Rain

Temperature Max: 28°C    Temperature Min: 23°C
Precipitation Probability: 86% (Rain)
Percentage of sky occluded by clouds: 93%
Wind speed: 7 km/h Sout-East
Humidity: 89%°        UV Index: 6
Sunrise: 10:33     Sunset: 22:29

Tuesday, December 16th

28°C     23°C

85%
 84%


Rain

Temperature Max: 28°C    Temperature Min: 23°C
Precipitation Probability: 85% (Rain)
Percentage of sky occluded by clouds: 84%
Wind speed: 6 km/h Sout-East
Humidity: 88%°        UV Index: 7
Sunrise: 10:34     Sunset: 22:29

Wednesday, December 17th

29°C     23°C

86%
 84%


Rain

Temperature Max: 29°C    Temperature Min: 23°C
Precipitation Probability: 86% (Rain)
Percentage of sky occluded by clouds: 84%
Wind speed: 5 km/h Sout-East
Humidity: 86%°        UV Index: 7
Sunrise: 10:34     Sunset: 22:29

Thursday, December 18th

29°C     23°C

67%
 79%


Rain

Temperature Max: 29°C    Temperature Min: 23°C
Precipitation Probability: 67% (Rain)
Percentage of sky occluded by clouds: 79%
Wind speed: 7 km/h Sout-East
Humidity: 86%°        UV Index: 8
Sunrise: 10:35     Sunset: 22:30

Friday, December 19th

28°C     23°C

85%
 91%


Rain

Temperature Max: 28°C    Temperature Min: 23°C
Precipitation Probability: 85% (Rain)
Percentage of sky occluded by clouds: 91%
Wind speed: 6 km/h Sout-East
Humidity: 88%°        UV Index: 6
Sunrise: 10:35     Sunset: 22:30

Saturday, December 20th

28°C     23°C

74%
 82%


Rain

Temperature Max: 28°C    Temperature Min: 23°C
Precipitation Probability: 74% (Rain)
Percentage of sky occluded by clouds: 82%
Wind speed: 6 km/h Sout-East
Humidity: 85%°        UV Index: 7
Sunrise: 10:36     Sunset: 22:31

Sunday, December 21st

28°C     22°C

71%
 82%


Rain

Temperature Max: 28°C    Temperature Min: 22°C
Precipitation Probability: 71% (Rain)
Percentage of sky occluded by clouds: 82%
Wind speed: 5 km/h Sout-East
Humidity: 85%°        UV Index: 7
Sunrise: 10:36     Sunset: 22:31

Monday, December 22nd

29°C     22°C

57%
 79%


Thunderstorms

Temperature Max: 29°C    Temperature Min: 22°C
Precipitation Probability: 57% (Rain)
Percentage of sky occluded by clouds: 79%
Wind speed: 5 km/h Sout-East
Humidity: 83%°        UV Index: 7
Sunrise: 10:37     Sunset: 22:32

Tuesday, December 23rd

29°C     22°C

50%
 79%


Rain

Temperature Max: 29°C    Temperature Min: 22°C
Precipitation Probability: 50% (Rain)
Percentage of sky occluded by clouds: 79%
Wind speed: 5 km/h Sout-East
Humidity: 81%°        UV Index: 6
Sunrise: 10:37     Sunset: 22:32

Wednesday, December 24th

29°C     21°C

45%
 89%


Rain

Temperature Max: 29°C    Temperature Min: 21°C
Precipitation Probability: 45% (Rain)
Percentage of sky occluded by clouds: 89%
Wind speed: 5 km/h West
Humidity: 80%°        UV Index: 7
Sunrise: 10:38     Sunset: 22:33









Latest Grand-Santi weather conditions
The latest weather data for Grand-Santi were collected Monday, 15 December 2025 at 19:07 from the nearest observation station of Maripasoula.

Latest weather conditions collected Mon, 15 December at 19:07

27°C

1008.98 hPa
3 mm/h
 100%


Rain

Temperature: 27°C
Pressure: 1008.98 mbars
Precipitation Intensity: 3 mm/h
Percentage of sky occluded by clouds: 100%
Wind speed: 8 km/h Sout-East
Wind Gust Speed: 22.22 km/h
Visibility: 11110.8 km    Humidity: 83%
Dew Point: 24°        UV Index: 4








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

Mon, 15 Dec - 9pm
      26°C

Grand-Santi weather:
Drizzle
58% Rain     96%
Wind Speed: 8 kmh
Wind Gust: 19 kmh

Mon, 15 Dec - 10pm
      25°C

Grand-Santi weather:
Drizzle
55% Rain     96%
Wind Speed: 6 kmh
Wind Gust: 15 kmh

Mon, 15 Dec - 11pm
      25°C

Grand-Santi weather:
Drizzle
49% Rain     93%
Wind Speed: 6 kmh
Wind Gust: 15 kmh

Tue, 16 Dec - 12am
      24°C

Grand-Santi weather:
Cloudy
0%      92%
Wind Speed: 6 kmh
Wind Gust: 15 kmh

Tue, 16 Dec - 1am
      24°C

Grand-Santi weather:
Cloudy
0%      98%
Wind Speed: 5 kmh
Wind Gust: 14 kmh

Tue, 16 Dec - 2am
      23°C

Grand-Santi weather:
Cloudy
0%      99%
Wind Speed: 5 kmh
Wind Gust: 13 kmh

Tue, 16 Dec - 3am
      23°C

Grand-Santi weather:
Cloudy
0%      99%
Wind Speed: 5 kmh
Wind Gust: 12 kmh

Tue, 16 Dec - 4am
      23°C

Grand-Santi weather:
Cloudy
0%      99%
Wind Speed: 4 kmh
Wind Gust: 11 kmh

Tue, 16 Dec - 5am
      23°C

Grand-Santi weather:
Cloudy
0%      98%
Wind Speed: 4 kmh
Wind Gust: 10 kmh

Tue, 16 Dec - 6am
      23°C

Grand-Santi weather:
Cloudy
28% Rain     99%
Wind Speed: 4 kmh
Wind Gust: 10 kmh

Tue, 16 Dec - 7am
      23°C

Grand-Santi weather:
Drizzle
30% Rain     99%
Wind Speed: 3 kmh
Wind Gust: 9 kmh

Tue, 16 Dec - 8am
      23°C

Grand-Santi weather:
Cloudy
28% Rain     99%
Wind Speed: 3 kmh
Wind Gust: 10 kmh

Tue, 16 Dec - 9am
      23°C

Grand-Santi weather:
Cloudy
25% Rain     98%
Wind Speed: 4 kmh
Wind Gust: 11 kmh

Tue, 16 Dec - 10am
      23°C

Grand-Santi weather:
Cloudy
0%      96%
Wind Speed: 3 kmh
Wind Gust: 10 kmh

Tue, 16 Dec - 11am
      23°C

Grand-Santi weather:
Cloudy
0%      94%
Wind Speed: 3 kmh
Wind Gust: 10 kmh

Tue, 16 Dec - 12pm
      24°C

Grand-Santi weather:
Cloudy
0%      92%
Wind Speed: 5 kmh
Wind Gust: 13 kmh

Tue, 16 Dec - 1pm
      25°C

Grand-Santi weather:
Drizzle
37% Rain     87%
Wind Speed: 7 kmh
Wind Gust: 19 kmh

Tue, 16 Dec - 2pm
      26°C

Grand-Santi weather:
Drizzle
39% Rain     68%
Wind Speed: 8 kmh
Wind Gust: 21 kmh

Tue, 16 Dec - 3pm
      27°C

Grand-Santi weather:
Drizzle
40% Rain     61%
Wind Speed: 8 kmh
Wind Gust: 23 kmh

Tue, 16 Dec - 4pm
      28°C

Grand-Santi weather:
Drizzle
41% Rain     71%
Wind Speed: 8 kmh
Wind Gust: 23 kmh

Tue, 16 Dec - 5pm
      28°C

Grand-Santi weather:
Rain
50% Rain     71%
Wind Speed: 7 kmh
Wind Gust: 21 kmh

Tue, 16 Dec - 6pm
      28°C

Grand-Santi weather:
Rain
50% Rain     79%
Wind Speed: 8 kmh
Wind Gust: 23 kmh

Tue, 16 Dec - 7pm
      28°C

Grand-Santi weather:
Drizzle
53% Rain     78%
Wind Speed: 7 kmh
Wind Gust: 19 kmh

Tue, 16 Dec - 8pm
      27°C

Grand-Santi weather:
Rain
52% Rain     78%
Wind Speed: 8 kmh
Wind Gust: 22 kmh

Attribution:             







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