The weather in Mersea Island on thursday 11 September 2025
The average max temperature in Mersea Island on 11 September is normally around 21°C. For comparison: the highest daytime temperature in the past 10 years was 26°C in 2023, while the lowest was 19°C in 2014.
There’s a small chance of precipitation, as 3 out of the last 10 years saw some, with an average of 1,7 mm on this day. The wind often comes from the South with a maximum strength of 4 Bft.The UV index can reach 6.
10 September
Temperature on 11 September in Mersea Island per year
This chart shows the average temperature on 11 September in Mersea Island, measured in degrees Celsius, over the past years.
Precipitation on 11 September in Mersea Island over the past years
This chart shows the total measured precipitation in millimetres on 11 September in Mersea Island over the past years.
Average Weather in Mersea Island by Month
Click on a month below to see detailed weather info for Mersea Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Mersea Island for all months at once
