The temperatures in Porsgrunn in October are quite cold with temperatures between 7°C and 11°C, warm clothes are a must.
You can expect rain for roughly half of the month of October in Porsgrunn. 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 Porsgrunn in October 2026.
If you’re planning to visit Porsgrunn in the near future, we highly recommend that you review the 14 day weather forecast for Porsgrunn before you arrive.
Temperatures
11° / 7°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
167
mm
Sun Hours
7.7
Hrs
