Aalst monthly weather forecast

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

21 October 2026, Wednesday
+8°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
17.3
92%
1006
01:00
+12°C
17.6
93%
1006
02:00
+12°C
22.7
91%
1006
03:00
+11°C
17.6
90%
1006
04:00
+10°C
15.8
92%
1006
05:00
+9°C
14.8
94%
1005
06:00
+8°C
15.1
95%
1005
07:00
+8°C
13.3
96%
1004
08:00
+8°C
15.1
94%
1004
09:00
+9°C
15.5
91%
1004
10:00
+9°C
19.1
85%
1003
11:00
+10°C
24.1
83%
1003
12:00
+10°C
22.7
92%
1003
13:00
+10°C
24.1
92%
1003
14:00
+10°C
25.2
91%
1003
15:00
+11°C
26.6
90%
1003
16:00
+12°C
25.6
88%
1003
17:00
+12°C
23.4
85%
1004
18:00
+12°C
23.4
74%
1005
19:00
+11°C
15.1
77%
1006
20:00
+10°C
19.4
83%
1007
21:00
+9°C
17.3
93%
1008
22:00
+9°C
19.8
93%
1009
23:00
+8°C
21.6
91%
1010
22 October 2026, Thursday
+7°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
21.2
92%
1010
01:00
+7°C
22.7
93%
1011
02:00
+7°C
23
93%
1011
03:00
+7°C
22.3
92%
1011
04:00
+8°C
19.8
91%
1011
05:00
+8°C
22.3
92%
1011
06:00
+8°C
17.3
94%
1011
07:00
+8°C
22.3
94%
1011
08:00
+8°C
28.1
91%
1010
09:00
+8°C
31
90%
1010
10:00
+8°C
27.7
93%
1010
11:00
+9°C
28.1
93%
1010
12:00
+10°C
30.6
91%
1011
13:00
+10°C
20.2
94%
1011
14:00
+11°C
23.4
92%
1012
15:00
+13°C
20.2
87%
1012
16:00
+13°C
20.9
84%
1012
17:00
+13°C
16.9
85%
1013
18:00
+13°C
13.3
89%
1013
19:00
+11°C
13
94%
1013
20:00
+10°C
12.6
95%
1013
21:00
+10°C
11.9
96%
1013
22:00
+9°C
10.4
96%
1013
23:00
+8°C
10.4
97%
1012
23 October 2026, Friday
+9°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
11.9
96%
1012
01:00
+10°C
14
96%
1011
02:00
+11°C
14.8
96%
1010
03:00
+11°C
16.2
96%
1009
04:00
+12°C
17.6
95%
1008
05:00
+12°C
19.1
94%
1006
06:00
+11°C
18.4
95%
1005
07:00
+11°C
22.3
94%
1004
08:00
+11°C
19.8
91%
1003
09:00
+11°C
25.2
88%
1001
10:00
+11°C
23.4
89%
1000
11:00
+11°C
23.8
89%
999
12:00
+11°C
25.9
86%
998
13:00
+12°C
22.3
85%
996
14:00
+11°C
23.8
88%
994
15:00
+12°C
20.2
90%
992
16:00
+12°C
16.1
92%
990
17:00
+11°C
10.7
93%
989
18:00
+11°C
9.5
96%
990
19:00
+12°C
21.5
94%
993
20:00
+12°C
31.5
95%
995
21:00
+11°C
36.4
94%
998
22:00
+10°C
27.9
87%
1001
23:00
+10°C
27.7
81%
1003
24 October 2026, Saturday
+7°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
26.5
82%
1004
01:00
+9°C
25.2
83%
1006
02:00
+8°C
26.1
82%
1007
03:00
+8°C
26
77%
1008
04:00
+8°C
23.9
79%
1010
05:00
+7°C
19
84%
1010
06:00
+7°C
19.4
77%
1011
07:00
+8°C
21.7
77%
1012
08:00
+7°C
20.6
75%
1012
09:00
+7°C
18.3
77%
1013
10:00
+8°C
16.3
76%
1014
11:00
+9°C
15
76%
1014
12:00
+10°C
17.1
75%
1014
13:00
+11°C
17.9
76%
1013
14:00
+12°C
19.9
72%
1013
15:00
+12°C
24
69%
1012
16:00
+11°C
23.9
81%
1011
17:00
+11°C
23.3
86%
1010
18:00
+10°C
25.4
87%
1009
19:00
+10°C
27.8
88%
1007
20:00
+10°C
30.3
91%
1006
21:00
+10°C
32.7
93%
1004
22:00
+10°C
35.1
94%
1001
23:00
+10°C
36.3
95%
999
25 October 2026, Sunday
+10°C / +14°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
36.1
96%
997
01:00
+11°C
34.9
96%
995
02:00
+12°C
32.5
96%
994
03:00
+13°C
28.3
96%
993
04:00
+14°C
26.3
95%
993
05:00
+14°C
27.3
92%
994
06:00
+13°C
26.6
85%
994
07:00
+12°C
24.4
76%
996
08:00
+11°C
22.9
70%
997
09:00
+11°C
22.4
66%
998
10:00
+12°C
22.5
64%
999
11:00
+12°C
22.6
63%
999
12:00
+13°C
23.2
62%
1000
13:00
+13°C
24.3
62%
1001
14:00
+14°C
25.2
63%
1002
15:00
+14°C
24.3
63%
1003
16:00
+13°C
22.8
63%
1005
17:00
+13°C
21.3
64%
1006
18:00
+12°C
20.5
65%
1007
19:00
+12°C
19.8
68%
1009
20:00
+11°C
19.2
70%
1010
21:00
+11°C
18.2
71%
1011
22:00
+10°C
16.8
71%
1012
23:00
+10°C
15.6
72%
1013
26 October 2026, Monday
+6°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
14.8
73%
1014
01:00
+9°C
14.3
75%
1014
02:00
+8°C
13.9
77%
1015
03:00
+8°C
13.6
79%
1015
04:00
+7°C
13.4
81%
1015
05:00
+7°C
13.1
83%
1016
06:00
+7°C
12.8
85%
1016
07:00
+6°C
12.4
86%
1016
08:00
+7°C
12.7
87%
1016
09:00
+8°C
13.1
86%
1017
10:00
+9°C
13.9
83%
1017
11:00
+10°C
14.8
81%
1017
12:00
+10°C
16
80%
1016
13:00
+10°C
17.4
79%
1016
14:00
+10°C
19
79%
1015
15:00
+10°C
21.1
82%
1015
16:00
+10°C
23.4
86%
1014
17:00
+10°C
24.6
89%
1014
18:00
+10°C
23.9
89%
1014
19:00
+11°C
22.3
87%
1014
20:00
+11°C
21
86%
1014
21:00
+12°C
20.5
86%
1014
22:00
+12°C
20.3
86%
1014
23:00
+13°C
20.2
86%
1014
27 October 2026, Tuesday
+12°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
19.5
88%
1014
01:00
+13°C
19
88%
1014
02:00
+14°C
19
88%
1013
03:00
+14°C
19.1
88%
1013
04:00
+14°C
19.7
88%
1013
05:00
+14°C
20.2
89%
1013
06:00
+14°C
21
89%
1012
07:00
+14°C
21.5
89%
1012
08:00
+14°C
21.8
90%
1012
09:00
+14°C
22
90%
1012
10:00
+15°C
22.1
90%
1012
11:00
+15°C
22.2
90%
1012
12:00
+15°C
22.2
90%
1012
13:00
+15°C
22.1
90%
1013
14:00
+15°C
21.9
90%
1013
15:00
+15°C
21.2
90%
1013
16:00
+15°C
20.3
89%
1014
17:00
+15°C
19.4
88%
1015
18:00
+14°C
18.3
87%
1015
19:00
+14°C
17.5
87%
1016
20:00
+13°C
16.7
87%
1016
21:00
+13°C
15.9
87%
1017
22:00
+12°C
15.3
87%
1018
23:00
+12°C
14.7
88%
1018
28 October 2026, Wednesday
+9°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
14.1
89%
1019
01:00
+10°C
13.6
90%
1020
02:00
+10°C
13.3
90%
1020
03:00
+10°C
13.2
90%
1021
04:00
+9°C
13.4
91%
1021
05:00
+9°C
13.7
91%
1021
06:00
+9°C
14.2
91%
1022
07:00
+9°C
14.8
90%
1022
08:00
+9°C
14.9
89%
1023
09:00
+10°C
15.1
87%
1023
10:00
+11°C
15.2
83%
1024
11:00
+13°C
15.4
79%
1024
12:00
+14°C
15.6
76%
1024
13:00
+15°C
15.7
73%
1025
14:00
+15°C
15.5
72%
1025
15:00
+15°C
14.9
73%
1025
16:00
+15°C
13.9
75%
1025
17:00
+15°C
12.8
77%
1026
18:00
+14°C
11.6
80%
1026
19:00
+13°C
10.7
83%
1026
20:00
+13°C
10
86%
1026
21:00
+12°C
9.7
88%
1026
22:00
+12°C
9.4
90%
1027
23:00
+11°C
9.4
91%
1027
29 October 2026, Thursday
+8°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
9.3
93%
1027
01:00
+11°C
9.2
94%
1027
02:00
+10°C
9
95%
1027
03:00
+10°C
8.9
97%
1027
04:00
+9°C
8.8
98%
1028
05:00
+9°C
8.8
99%
1028
06:00
+8°C
8.6
99%
1028
07:00
+8°C
8.5
99%
1028
08:00
+8°C
8
98%
1028
09:00
+9°C
7.3
95%
1028
10:00
+10°C
6.5
91%
1028
11:00
+12°C
5.8
86%
1028
12:00
+13°C
4.9
81%
1028
13:00
+14°C
4.4
78%
1028
14:00
+15°C
4.1
76%
1028
15:00
+15°C
4.3
77%
1028
16:00
+15°C
5
79%
1027
17:00
+14°C
6.1
81%
1027
18:00
+13°C
7.4
84%
1027
19:00
+12°C
8.6
87%
1027
20:00
+11°C
9.4
89%
1027
21:00
+11°C
9.7
90%
1027
22:00
+10°C
9.8
91%
1027
23:00
+10°C
9.8
92%
1026
30 October 2026, Friday
+7°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
9.5
92%
1026
01:00
+9°C
9.4
92%
1026
02:00
+9°C
9.4
93%
1026
03:00
+8°C
9.6
93%
1026
04:00
+8°C
9.6
95%
1026
05:00
+7°C
9.7
96%
1026
06:00
+7°C
9.9
97%
1025
07:00
+7°C
9.9
97%
1025
08:00
+7°C
9.9
96%
1025
09:00
+8°C
9.7
93%
1025
10:00
+9°C
9.5
88%
1024
11:00
+10°C
9.2
83%
1024
12:00
+12°C
9
79%
1024
13:00
+13°C
8.7
76%
1024
14:00
+13°C
8.7
74%
1024
15:00
+13°C
8.8
75%
1024
16:00
+13°C
9.4
77%
1023
17:00
+13°C
9.9
80%
1023
18:00
+12°C
10.3
84%
1023
19:00
+11°C
10.5
87%
1023
20:00
+11°C
10.4
90%
1023
21:00
+10°C
9.7
91%
1023
22:00
+10°C
8.9
92%
1023
23:00
+9°C
8.3
92%
1023
31 October 2026, Saturday
+6°C / +14°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
8.1
92%
1023
01:00
+8°C
8.5
92%
1024
02:00
+8°C
8.8
93%
1024
03:00
+8°C
9
93%
1024
04:00
+7°C
9.1
95%
1024
05:00
+7°C
8.9
95%
1024
06:00
+6°C
8.7
96%
1024
07:00
+6°C
8.4
96%
1024
08:00
+6°C
8
96%
1024
09:00
+7°C
7.6
94%
1024
10:00
+9°C
7
91%
1025
11:00
+10°C
6.5
87%
1025
12:00
+12°C
5.8
84%
1025
13:00
+14°C
5.1
82%
1025
14:00
+14°C
4.3
81%
1025
15:00
+14°C
3.4
82%
1026
16:00
+14°C
2.6
85%
1026
17:00
+13°C
1.8
89%
1026
18:00
+12°C
1.8
93%
1026
19:00
+11°C
2.2
96%
1026
20:00
+10°C
2.7
99%
1026
21:00
+10°C
2.9
100%
1027
22:00
+9°C
3.1
100%
1027
23:00
+9°C
3.6
100%
1027
01 November 2026, Sunday
+7°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
4.2
100%
1028
01:00
+8°C
4.7
99%
1028
02:00
+7°C
5.1
99%
1028
03:00
+8°C
5.2
99%
1028
04:00
+8°C
5.2
99%
1029
05:00
+8°C
5.3
98%
1029
06:00
+9°C
5.6
98%
1029
07:00
+9°C
6
97%
1029
08:00
+9°C
6.3
96%
1030
09:00
+10°C
6.1
95%
1030
10:00
+10°C
5.6
93%
1030
11:00
+11°C
5
91%
1031
12:00
+11°C
4.4
90%
1031
13:00
+12°C
4
88%
1031
14:00
+12°C
3.9
88%
1031
15:00
+12°C
4.1
88%
1032
16:00
+12°C
4.5
89%
1032
17:00
+12°C
5.3
91%
1032
18:00
+11°C
6.3
92%
1032
19:00
+11°C
7.2
94%
1032
20:00
+10°C
7.9
95%
1032
21:00
+10°C
8.1
96%
1032
22:00
+10°C
8.1
96%
1032
23:00
+9°C
8.1
97%
1032
02 November 2026, Monday
+8°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
8
97%
1032
01:00
+9°C
7.8
98%
1032
02:00
+8°C
7.9
98%
1032
03:00
+8°C
7.8
98%
1032
04:00
+8°C
7.6
99%
1032
05:00
+8°C
7.5
100%
1032
06:00
+8°C
7.5
100%
1032
07:00
+8°C
7.6
99%
1032
08:00
+9°C
8
97%
1032
09:00
+9°C
9.1
93%
1032
10:00
+10°C
10.5
89%
1031
11:00
+10°C
12.5
83%
1031
12:00
+11°C
14.3
78%
1031
13:00
+11°C
15.9
75%
1031
14:00
+12°C
16.8
73%
1031
15:00
+12°C
16.8
72%
1031
16:00
+12°C
16.1
73%
1030
17:00
+11°C
15
75%
1030
18:00
+11°C
13.8
77%
1030
19:00
+11°C
12.9
79%
1030
20:00
+10°C
12.1
81%
1029
21:00
+10°C
11.7
82%
1029
22:00
+9°C
11.5
84%
1029
23:00
+9°C
11.2
85%
1029
03 November 2026, Tuesday
+4°C / +9°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
11.1
87%
1028
01:00
+7°C
11.1
89%
1028
02:00
+7°C
10.8
90%
1028
03:00
+6°C
10.7
92%
1027
04:00
+6°C
10.5
94%
1027
05:00
+5°C
10.4
97%
1026
06:00
+5°C
10.2
98%
1026
07:00
+4°C
10
99%
1025
08:00
+4°C
9.8
98%
1025
09:00
+5°C
9.5
96%
1024
10:00
+6°C
9.2
91%
1024
11:00
+7°C
8.7
86%
1023
12:00
+7°C
8.2
81%
1023
13:00
+8°C
7.9
78%
1022
14:00
+9°C
7.8
76%
1022
15:00
+9°C
7.7
76%
1022
16:00
+8°C
7.9
79%
1021
17:00
+8°C
8.2
82%
1021
18:00
+7°C
8.4
85%
1020
19:00
+7°C
8.6
89%
1019
20:00
+6°C
8.6
91%
1019
21:00
+6°C
8.3
93%
1018
22:00
+5°C
7.7
94%
1018
23:00
+5°C
7
95%
1018


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.

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