Best year time to visit Grand Lac

General weather information about Grand Lac

Average annual temperature is 25.9 °C

Absolute maximum temperature: 37.7 °C

Absolute minimum temperature: 19.0 °C

Number of sunny days: 21 days

Number of rainy days: 344 days

Look at detailed online map of Grand Lac

* Weather data for Grand Lac French Guiana is based on climate observations for 2026 year

Grand Lac air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)30.529.632.732.132.633.132.035.137.037.736.133.6
Average daytime temperature (°C)27.827.430.229.429.630.530.132.834.634.933.431.4
Average temperature (°C)23.823.825.225.125.325.325.426.927.828.327.426.1
Average night temperature (°C)21.622.022.022.422.922.522.422.923.223.923.523.0
Absolute minimum temperature (°C)19.020.619.921.121.821.421.021.821.422.521.721.4

Grand Lac monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)11.012.012.012.012.012.012.012.012.012.011.011.0
Daylight mean duration (h)11.912.012.112.212.312.412.412.312.112.011.911.9
Daylight minimum duration (h)11.011.012.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)6.04.89.06.86.48.19.310.810.610.310.39.1
Precipitation (mm)60857325756370944131416076106154179
Sunny days101100047520
Rainy days302830293130312723262831
Snow days000000000000

Grand Lac - weather forecast by months

Grand Lac weather in januaryGrand Lac weather in februaryGrand Lac weather in marchGrand Lac weather in aprilGrand Lac weather in mayGrand Lac weather in juneGrand Lac weather in julyGrand Lac weather in augustGrand Lac weather in septemberGrand Lac weather in octoberGrand Lac weather in novemberGrand Lac weather in december

Best time to visit Grand Lac:

The best time to visit Grand Lac during the most sunny months:

  • August — 10.8(h)

The largest precipitation sum in Grand Lac is at

  • January — 608(mm)
  • February — 573(mm)
  • April — 563(mm)
  • May — 709(mm)
  • June — 441(mm)

    • Weather forecast in the closest to Grand Lac admin centers

    Weather forecast in the closest towns to Grand Lac

    Explore Grand Lac

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

    When is the best time to visit Grand Lac?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Grand Lac.
    What is the weather like in Grand Lac?
    See average temperature, rainfall and daylight hours for Grand Lac by month in the table above.
    How many sunny days does Grand Lac have?
    The monthly weather statistics above show sunshine and rainfall patterns for Grand Lac throughout the year.