Brussels experiences a temperate maritime climate with mild summers, cool winters, and no real dry season to speak of.
Rain falls throughout the year with remarkable consistency, making waterproof layers as essential as your keys and phone.
Temperatures range from around 0°C in winter to 23°C in summer, though dramatic swings are rare and heatwaves remain brief curiosities.
The North Sea influence brings persistent humidity and unpredictable winds that make the air feel colder than the thermometer suggests.
Layering is the local religion here—the ability to add or shed a cardigan between morning fog and afternoon sun separates tourists from residents.