The temperatures in Saarlouis in May are quite cold with temperatures between 8°C and 17°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Saarlouis. 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 Saarlouis in May 2026.
If you’re planning to visit Saarlouis in the near future, we highly recommend that you review the 14 day weather forecast for Saarlouis before you arrive.
Temperatures
17° / 8°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
124
mm
Sun Hours
5.5
Hrs
