RainFlanders
An introduction to the traffic rules and road signs of Flanders. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
229. Rain
Rain can reduce visibility, tyre grip and vehicle control while increasing stopping distances. Water on the road can also cause aquaplaning, where the tyres lose contact with the road surface. Drivers should reduce speed, increase their following distance, avoid sudden steering or braking and use the appropriate lights when visibility is reduced. Extra care is needed during heavy rain and when water collects in wheel tracks or on poorly drained roads.
Do you have to reduce your speed in rain in Belgium?
Yes. Belgian traffic rules require drivers to adapt their speed to the weather conditions, visibility, road condition and traffic situation. Drivers must also maintain a sufficient safety distance and be able to stop before a foreseeable obstacle.
When must rear fog lights be used in heavy rain in Belgium?
Under the current Belgian traffic rules, rear fog lights must be used in heavy rain when the vehicle is equipped with them. They may not be used in other circumstances unless another permitted condition, such as sufficiently dense fog or snowfall, applies.
May front fog lights be used in heavy rain in Belgium?
Yes. Under the current rules, front fog lights may be used during heavy rain. They may replace the dipped or main-beam headlights or be used together with them.

Traffic rules
Flanders