The temperatures in Shannon in October are quite cold with temperatures between 8°C and 14°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Shannon during the month of October. 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 October 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
14° / 8°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
89
mm
Sun Hours
3.1
Hrs
