The weather in Wales on tuesday 23 September 2025
The average max temperature in Wales on 23 September is normally around 17°C. For comparison, the highest daytime temperature in the past 10 years was 19°C in 2017, while the lowest was 13°C in 2018.
There’s a good chance of precipitation, as 7 of the past 10 years saw precipitation on this day, with an average of 1,3 mm.The wind often comes from the West with a maximum speed of 4 Bft.The UV index can reach 5.
22 September
Temperature on 23 September in Wales per year
This chart shows the average temperature on 23 September in Wales, measured in degrees Celsius, over the past years.
Precipitation on 23 September in Wales over the past years
This chart shows the total measured precipitation in millimeters on 23 September in Wales over the past years.
Average weather in Wales by month
Click on a month below to see detailed weather info for Wales. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
