The temperatures in Boulogne Sur Mer in October are usually low and can range between 11°C and 15°C.
You can expect rain for roughly half of the month of October in Boulogne Sur Mer. 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 Boulogne Sur Mer in October 2026.
If you’re planning to visit Boulogne Sur Mer in the near future, we highly recommend that you review the 14 day weather forecast for Boulogne Sur Mer before you arrive.
Temperatures
15° / 11°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
128
mm
Sun Hours
8.2
Hrs
