The temperatures in Belfast in October are quite cold with temperatures between 8°C and 13°C, warm clothes are a must.
You can expect rain for roughly half of the month of October in Belfast. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Belfast in October 2025.
If you’re planning to visit Belfast in the near future, we highly recommend that you review the 14 day weather forecast for Belfast before you arrive.
Temperatures
13° / 8°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
132
mm
Sun Hours
7.0
Hrs
