The weather in Groix on thursday 11 September 2025
The average max temperature in Groix on 11 September is normally around 21°C. For comparison: the highest daytime temperature in the past 10 years was 25°C in 2022, while the lowest was 16°C in 2017.
There’s no chance of precipitation, as there’s been no record of it on this day in the past 10 years. The wind often comes from the Southwest with a maximum strength of 5 Bft.The UV index can reach 7.
Temperature on 11 September in Groix per year
This chart shows the average temperature on 11 September in Groix, measured in degrees Celsius, over the past years.
Precipitation on 11 September in Groix over the past years
This chart shows the total measured precipitation in millimetres on 11 September in Groix over the past years.
Average Weather in Groix by Month
Click on a month below to see detailed weather info for Groix. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.