The weather in Oulu in May is very cold with temperatures between 4°C and 11°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Oulu during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
You can expect a few days of snow in Oulu during May. It’s important to get out your snow boots and warm mittens to stay warm while you explore Oulu.
Our weather forecast can give you a great sense of what weather to expect in Oulu in May 2025.
If you’re planning to visit Oulu in the near future, we highly recommend that you review the 14 day weather forecast for Oulu before you arrive.
Temperatures
11° / 4°
Rainy Days
7
Snowy Days
3
Dry Days
20
Rainfall
65
mm
Sun Hours
8.1
Hrs
