The temperatures in Brecon in August are usually low and can range between 11°C and 18°C.
You can expect about 3 to 8 days of rain in Brecon during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Brecon in August 2025.
If you’re planning to visit Brecon in the near future, we highly recommend that you review the 14 day weather forecast for Brecon before you arrive.
Temperatures
18° / 11°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
109
mm
Sun Hours
6.5
Hrs
