Daytime highs, nighttime lows and the warmest cities across Belgium this September.
Belgium, experiences maximum daytime temperatures in September ranging from 18°C (64°F) in Butgenbach to 21°C (70°F) in Mechelen. Nighttime temperatures generally drop to 12°C (54°F) in Mechelen and 9°C (48°F) in Butgenbach.
Explore the map below to discover average September temperatures at the top destinations in Belgium. For a deeper dive, simply click on any destination dot.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Belgium.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Drill down to September weather for any region in Belgium.
Pick a city to see its September weather averages.
Expect daytime temperatures around 21°C (70°F) in Brussels. That makes September a pleasant month for Belgium.
Brussels sees nighttime lows close to 11°C (52°F) in September.
Based on our systematic data collection, Mechelen has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 21°C (70°F), while at night it goes down to an approximate temperature of 12°C (54°F).
According to our data, Butgenbach holds the title for the coldest city in Belgium in September. It experiences maximum temperatures of approximately 18°C (64°F) and drops to lows of about 9°C (48°F) during the night.
Brussels enjoys a balanced 142 hours of sunlight. This makes it neither too overcast nor too sunny.
We have much more information about the climate in Belgium.
Weather and climate has detailed information for every country in the world. Are you going to Belgium? Get detailed historical weather averages for many cities in Belgium.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
Need travel inspiration? Check out our bucket list articles and be inspired.
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