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Walloon Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Walloon year round climate

  • Spring (March–May): Average 41–53°F, mild but still rather humid with occasional showers. March and April can still feel chilly, with temperatures rising in May. Common activities: Hiking, visiting historical sites. Recommended clothing: Light jacket, warm inner layers, waterproof jacket.
  • Summer (June–August): Average 59–62°F, warm and pleasant, with occasional rainfall. Sunny days are more frequent, but temperatures are not scorching. Common activities: Cycling, outdoor picnics, visiting museums and art galleries. Recommended clothing: Light and breathable clothing; a light jacket is recommended for cooler evenings or overcast days.
  • Autumn (September–November): Average 51–56°F, cool and gradually becoming more humid, with more frequent rainfall. Temperatures drop noticeably after October. Common activities: Leaf peeping (depending on tree species), indoor sightseeing. Recommended clothing: Warm jacket, comfortable trousers, rain gear.
  • Winter (December–February): Average 33–37°F, cold and humid, with higher rainfall and frequent overcast days. Temperatures often hover around freezing. Common activities: Indoor activities, visiting indoor gardens or museums. Recommended clothing: Warm coat, hat, scarf, gloves, waterproof boots.

Walloon climatological average

Annual average temperature: approx. 48.0°F / Annual rainfall: approx. 1108 mm / Summer humidity: 65%–75% / Rainiest month: December

Walloon monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
33.4°F
117.4
February
37.9°F
94.3
March
41.2°F
89
April
43.5°F
79.8
May
53.1°F
78
June
59.5°F
82.5
July
61°F
78.6
August
62.8°F
73.5
September
56.5°F
83.6
October
51.1°F
102.8
November
40.8°F
111.3
December
35.4°F
117.9

Walloon weather for the next seven days

9/19
Saturday
Overcast
65.9°F/48.7°F
9/20
Sunday
Overcast
60.8°F/51.9°F
9/21
Monday
Overcast
62°F/47.3°F
9/22
Tuesday
Sunny
64.1°F/51.3°F
9/23
Wednesday
Overcast
65.2°F/52.6°F
9/24
Thursday
Sunny
65.7°F/55.5°F
9/25
Friday
Partly Cloudy
68.7°F/54.3°F