The temperatures in Porrentruy in August are comfortable with low of 13°C and and high up to 23°C.
You can expect about 3 to 8 days of rain in Porrentruy 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 Porrentruy in August 2026.
If you’re planning to visit Porrentruy in the near future, we highly recommend that you review the 14 day weather forecast for Porrentruy before you arrive.
Temperatures
23° / 13°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
147
mm
Sun Hours
10.7
Hrs
