The temperatures in Shannon 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 Shannon 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 Shannon in August 2025.
If you’re planning to visit Shannon in the near future, we highly recommend that you review the 14 day weather forecast for Shannon before you arrive.
Temperatures
18° / 11°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
98
mm
Sun Hours
2.5
Hrs
