Aalst hourly weather forecast

Hourly weather forecast for Aalst. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

22 May 2026, Friday
+11°C / +26°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
5.8
75%
1026
01:00
+13°C
6.1
79%
1026
02:00
+13°C
6.8
81%
1026
03:00
+12°C
7.6
81%
1026
04:00
+12°C
7.9
83%
1026
05:00
+11°C
4
84%
1026
06:00
+11°C
3.6
83%
1026
07:00
+12°C
7.2
81%
1026
08:00
+16°C
7.9
74%
1026
09:00
+18°C
4.7
69%
1026
10:00
+20°C
7.9
64%
1026
11:00
+22°C
5.8
59%
1026
12:00
+23°C
6.8
54%
1026
13:00
+24°C
6.1
52%
1026
14:00
+25°C
8.3
49%
1026
15:00
+26°C
7.6
47%
1025
16:00
+26°C
7.6
45%
1025
17:00
+26°C
6.8
43%
1025
18:00
+26°C
7.2
45%
1025
19:00
+26°C
6.5
50%
1025
20:00
+25°C
5.8
56%
1025
21:00
+23°C
5.4
59%
1025
22:00
+21°C
4.7
59%
1025
23:00
+19°C
6.1
69%
1025
23 May 2026, Saturday
+15°C / +29°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+18°C
6.5
77%
1025
01:00
+17°C
8.3
78%
1025
02:00
+17°C
7.6
79%
1025
03:00
+16°C
6.8
82%
1025
04:00
+16°C
7.6
82%
1025
05:00
+15°C
9.7
85%
1025
06:00
+15°C
7.6
84%
1025
07:00
+16°C
7.6
80%
1025
08:00
+19°C
7.2
73%
1026
09:00
+21°C
8.6
66%
1026
10:00
+23°C
8.3
62%
1026
11:00
+25°C
7.6
58%
1026
12:00
+26°C
7.2
54%
1027
13:00
+27°C
6.8
51%
1027
14:00
+28°C
7.2
49%
1027
15:00
+29°C
7.6
48%
1027
16:00
+29°C
7.6
47%
1026
17:00
+29°C
6.1
44%
1026
18:00
+29°C
5.4
45%
1026
19:00
+29°C
4.3
49%
1026
20:00
+28°C
7.6
56%
1026
21:00
+26°C
7.6
62%
1026
22:00
+24°C
5.4
63%
1027
23:00
+22°C
8.3
77%
1027
24 May 2026, Sunday
+19°C / +31°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+21°C
4.7
82%
1027
01:00
+20°C
6.1
85%
1028
02:00
+19°C
4.3
84%
1028
03:00
+19°C
2.5
83%
1028
04:00
+19°C
2.5
83%
1028
05:00
+19°C
3.6
83%
1028
06:00
+19°C
3.6
84%
1028
07:00
+20°C
5
82%
1028
08:00
+22°C
2.9
76%
1029
09:00
+24°C
2.9
70%
1029
10:00
+26°C
2.5
63%
1029
11:00
+27°C
3.2
57%
1029
12:00
+29°C
5.8
50%
1029
13:00
+29°C
8.6
47%
1029
14:00
+30°C
7.9
45%
1029
15:00
+31°C
6.8
43%
1029
16:00
+31°C
6.5
43%
1029
17:00
+31°C
6.5
42%
1028
18:00
+30°C
14.4
52%
1028
19:00
+29°C
12.6
57%
1028
20:00
+27°C
11.9
63%
1028
21:00
+26°C
11.5
70%
1028
22:00
+24°C
10.8
72%
1028
23:00
+22°C
9.2
78%
1029
25 May 2026, Monday
+17°C / +27°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+21°C
9.1
81%
1029
01:00
+20°C
9.9
84%
1029
02:00
+20°C
8.7
85%
1029
03:00
+19°C
7.8
86%
1029
04:00
+18°C
7.1
87%
1029
05:00
+17°C
6.7
89%
1029
06:00
+17°C
7.2
90%
1029
07:00
+17°C
7.6
89%
1029
08:00
+19°C
5.1
86%
1030
09:00
+21°C
4.2
81%
1030
10:00
+23°C
4
76%
1030
11:00
+24°C
5
67%
1030
12:00
+26°C
6.4
59%
1030
13:00
+26°C
6.6
58%
1030
14:00
+27°C
6.4
55%
1030
15:00
+27°C
6.5
51%
1029
16:00
+27°C
6.8
48%
1029
17:00
+27°C
7.3
48%
1029
18:00
+27°C
7.1
49%
1028
19:00
+27°C
6.9
51%
1028
20:00
+26°C
7.2
61%
1028
21:00
+24°C
9.9
71%
1028
22:00
+23°C
9.8
81%
1028
23:00
+22°C
9.7
78%
1028
26 May 2026, Tuesday
+17°C / +28°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+21°C
9.2
75%
1028
01:00
+20°C
7.5
79%
1028
02:00
+19°C
6.9
82%
1028
03:00
+18°C
6.1
83%
1028
04:00
+17°C
5.4
84%
1027
05:00
+17°C
4.9
85%
1027
06:00
+17°C
4.5
85%
1027
07:00
+18°C
3.8
84%
1027
08:00
+19°C
3
81%
1027
09:00
+21°C
2.2
74%
1027
10:00
+23°C
2.6
66%
1027
11:00
+25°C
4
59%
1027
12:00
+26°C
5.6
53%
1027
13:00
+27°C
7.5
46%
1027
14:00
+28°C
8.9
43%
1026
15:00
+28°C
9.8
43%
1026
16:00
+28°C
10.4
44%
1025
17:00
+28°C
11.3
47%
1025
18:00
+27°C
12.4
51%
1024
19:00
+25°C
14
58%
1024
20:00
+23°C
15.2
63%
1024
21:00
+21°C
15.5
68%
1025
22:00
+20°C
15.4
72%
1025
23:00
+18°C
14.9
75%
1026


Climate Characteristics of Aalst

General Overview

Aalst enjoys a temperate oceanic climate (Cfb per the Köppen classification), typical of central Belgium. The city's weather is influenced by its relative proximity to the North Sea, resulting in mild temperatures throughout the year and precipitation spread fairly evenly across seasons. Cloud cover is high and rain can occur at any time, keeping the agricultural surroundings of the city green and fertile.

Summer Season and Warm Months

Summer in Aalst is pleasant and very comfortable. Average daytime temperatures range between 22°C and 23°C (72-73°F), making it an ideal time for walking tours in the historic city center. Although days are mostly sunny, short summer showers are a common sight, and occasionally short heatwaves strike the area, pushing temperatures above 30°C (86°F).

Winter Season and Precipitation

Winter in Aalst is cool, grey, and humid. Daytime temperatures range around 6°C (43°F), with nighttime lows near 1°C (34°F). Snow is not very common and usually melts quickly, while rain and fog are central features of the season. Westerly winds from the ocean can increase the wind chill on clear days.

Transition Seasons and Special Phenomena

The transition seasons in Aalst are characterized by frequent weather changes. Spring brings gradual warming but is very volatile, while autumn features a decrease in sunshine hours and beautiful foliage along the banks of the Dender River. February is sometimes known for particularly stormy weather, coinciding with the famous Aalst Carnival.

 

Weather in Aalst by Month

January

The coldest month. Temperatures around 6°C (43°F) during the day and 1°C (34°F) at night. Most days are cloudy and rainy.

February

The weather remains cold with a daytime average of 7°C (45°F). Strong winds and rain are possible, but days are starting to lengthen.

March

Spring arrives with daytime temperatures of about 11°C (52°F). Volatile weather – sunny moments alongside cold rain showers.

April

Temperatures climb to 15°C (59°F). Blossoms are seen throughout the city and the atmosphere becomes more pleasant.

May

A very pleasant month with an average temperature of 19°C (66°F). Days are long and bright, and nature is at peak bloom.

June

Summer begins with an average of 21°C (70°F) during the day. Daylight hours are very long and evenings are pleasant.

July

The warmest month (average 23°C/73°F daytime). Comfortable weather that usually does not become oppressive.

August

Similar to July with 23°C (73°F) during the day. Brief afternoon thunderstorms may occur.

September

Temperatures drop to an average of 20°C (68°F). The air is very pleasant and foliage begins to appear.

October

Autumn is felt with 15°C (59°F) during the day. A wetter and cooler month, but the city is beautiful in its autumnal hues.

November

A grey and cool month with 10°C (50°F) during the day. Sunshine hours decrease significantly and rain is frequent.

December

Winter returns with 6°C (43°F) during the day. Christmas markets and lights add warmth to the short, humid days.

Aalst weather forecast for tomorrow
Aalst weather forecast for 5 days
Aalst monthly weather forecast
Aalst hourly weather forecast
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