Knokke-Heist Sea Conditions and Tide Table

Knokke-Heist Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 08:45 AM and sunset is at 04:38 PM.

Days 1–3 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Cool air temperatures (max 13°C on Thu afternoon, min 7°C on Fri night). Winds decreasing (strong winds from the SSW on Thu afternoon, light winds from the S by Fri night).

Days 4–6 Weather Summary

Moderate rain (total 11mm), heaviest on Sun morning. Cool air temperatures (max 11°C on Sun morning, min 6°C on Sat morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Wed morning, min 2°C on Thu night). Winds increasing (light winds from the SW on Tue afternoon, fresh winds from the ENE by Thu morning).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 6°C on Fri afternoon, min 0°C on Fri night). Mainly fresh winds.

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
12:21PM3.46m
00:45AM3.53m
1:04PM3.66m
1:23AM3.68m
1:42PM3.83m
2:00AM3.82m
2:20PM3.97m
2:36AM3.94m
2:56PM4.06m
3:11AM4.02m
3:33PM4.09m
3:47AM4.06m
4:11PM4.08m
4:23AM4.04m
4:49PM4.02m
5:01AM3.97m
5:29PM3.93m
5:41AM3.85m
6:12PM3.83m
6:25AM3.70m
7:00PM3.70m
7:14AM3.53m
7:54PM3.57m
Low Tide
6:21PM1.00m
6:41AM1.00m
7:04PM0.92m
7:20AM0.87m
7:44PM0.85m
7:58AM0.76m
8:21PM0.81m
8:35AM0.68m
8:56PM0.81m
9:11AM0.64m
9:30PM0.85m
9:46AM0.63m
10:03PM0.92m
10:21AM0.66m
10:37PM1.01m
10:57AM0.72m
11:16PM1.11m
11:38AM0.81m
00:06AM1.21m
12:30PM0.90m
1:10AM1.30m
1:34PM0.98m
2:21AM1.33m
Wave
height (m) 
direction
period (s) 
0.4
NW
5
0.6
W
3
1.2
WSW
5
1.5
WSW
6
1.4
SW
5
1.5
W
7
0.8
W
5
0.9
W
5
0.6
W
4
0.4
W
4
0.3
E
2
0.1
W
5
0.5
ESE
3
0.4
SE
3
0.2
ESE
2
0.3
ESE
2
0.4
SSW
3
0.4
WSW
4
0.3
W
3
0.2
WNW
2
0.2
N
6
0.4
N
7
0.6
N
8
1
NNE
5
1.2
NNE
5
1.2
N
7
1.2
NNE
6
1.2
NNE
5
1.1
N
6
1.1
N
6
1.2
NNE
5
1
NNE
6
0.8
NNE
5
0.7
NNE
5
0.6
NNE
4
0.5
N
4
part cloud
cloud
rain showers
cloud
cloud
light rain
light rain
part cloud
part cloud
light rain
cloud
light rain
light rain
cloud
cloud
part cloud
part cloud
rain showers
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
some clouds
cloudy
rain shwrs
cloudy
cloudy
light rain
light rain
some clouds
some clouds
light rain
cloudy
light rain
light rain
cloudy
cloudy
some clouds
some clouds
rain shwrs
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
clear
some clouds
cloudy
some clouds
clear
clear
clear
clear
clear
clear
 km/h
15
WNW
20
SW
35
SSW
35
SSW
45
S
35
SW
15
W
20
WSW
15
SSW
10
SE
15
E
10
SE
25
SE
15
ESE
15
SE
20
ESE
15
SSW
10
WSW
10
SSW
5
SW
10
SE
15
E
20
ENE
25
E
30
ENE
30
E
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
20
ENE
20
ENE
20
ENE
15
ENE
 mm 
1
2
1
1
4
5
1
max°C
9
9
9
10
13
12
10
9
9
7
7
9
11
11
10
9
8
7
7
7
6
8
7
6
5
6
4
3
6
4
1
1
0
1
2
1
Moonrise
6:38
7:49
8:53
9:47
10:28
10:58
11:20
11:37
11:50
12:02
12:14
12:27
Moonset
2:21
2:51
3:32
4:26
5:33
6:47
8:04
9:22
10:40
11:58
1:18
Sunrise
8:45
8:47
8:48
8:48
8:48
8:48
8:49
8:49
8:49
8:51
8:51
8:51
Sunset
4:38
4:38
4:38
4:39
4:39
4:40
4:40
4:42
4:43
4:43
4:44
4:45
Today's sea temperature in Knokke-Heist is
8.2° C
(Statistics for 17 Dec 1981-2005 – mean: 9.0 max: 10.5 min: 7.5°C)
Issued (local time): 12 pm Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest