Middelharnis Sea Conditions and Tide Table

Middelharnis 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 08:48 AM and sunset is at 04:37 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 6°C on Sat afternoon, min -3°C on Thu morning). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 8°C on Mon night, min 2°C on Sun morning). Winds increasing (calm on Sun night, fresh winds from the NNW by Tue afternoon).

Days 7–9 Weather Summary

Moderate rain (total 19mm), heaviest on Fri afternoon. Freeze-thaw conditions (max 5°C on Wed morning, min 0°C on Thu afternoon). Mainly strong winds.

Days 10–12 Weather Summary

Some drizzle, heaviest during Sun night. Freeze-thaw conditions (max 4°C on Mon night, min 0°C on Sat night). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
12:16PM0.47m
6:57PM2.33m
7:05AM2.13m
1:04PM0.46m
7:43PM2.28m
7:52AM2.02m
8:33PM2.21m
8:44AM1.91m
9:31PM2.15m
9:47AM1.84m
10:38PM2.10m
11:01AM1.86m
11:48PM2.11m
12:13PM1.97m
00:51AM2.16m
1:15PM2.16m
1:47AM2.24m
2:11PM2.37m
2:37AM2.31m
3:02PM2.55m
9:13PM0.60m
3:51PM2.68m
9:23PM0.65m
10:41AM0.38m
4:39PM2.73m
4:52AM2.40m
Low Tide
11:38AM0.47m
1:47PM0.44m
2:38AM0.77m
12:35PM0.46m
2:12PM0.46m
3:18AM0.78m
1:50PM0.46m
3:52AM0.78m
2:41PM0.46m
4:16AM0.77m
3:32PM0.45m
4:33AM0.74m
4:23PM0.45m
5:04AM0.70m
5:14PM0.45m
5:43AM0.64m
6:06PM0.47m
6:27AM0.56m
6:59PM0.51m
7:14AM0.48m
7:54PM0.57m
8:05AM0.40m
9:00PM0.65m
8:59AM0.33m
00:24AM0.55m
Wave
height (m) 
direction
period (s) 
1.1
NNE
5
1.1
NNE
5
0.8
NNE
4
0.7
NNE
4
0.6
NNE
4
0.6
NE
4
0.5
N
3
0.7
N
4
1.3
N
7
1.1
N
9
0.9
N
10
0.7
N
9
0.8
N
9
1
N
6
1
N
7
1.3
NNW
5
1.6
NNW
6
2
N
9
1.5
N
11
1.3
NNW
10
1.8
NNW
7
1.9
NNW
8
1.7
NNW
8
1.6
NNW
8
0.9
NNW
8
2.1
NW
7
2
NNW
8
1.2
N
6
1
NNW
4
0.8
N
6
0.5
N
6
0.4
N
6
0.8
N
6
0.5
N
5
0.4
N
5
0.2
NNW
5
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
cloud
part cloud
light rain
light rain
mod rain
light rain
light rain
clear
part cloud
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
light rain
light rain
mod rain
light rain
light rain
clear
some clouds
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
some clouds
clear
some clouds
 km/h
35
ENE
30
ENE
20
ENE
20
ENE
20
ENE
20
ENE
15
NE
15
NNE
15
NNE
10
E
10
NE
5
NNE
15
N
20
N
10
N
20
NNW
30
NW
25
N
15
NNW
20
NNW
30
NW
25
NW
20
NNE
25
NE
5
S
40
NW
25
NNW
10
N
20
N
5
E
5
S
0
N
5
NNE
5
ESE
10
WSW
10
SW
 mm 
1
2
6
4
1
5
1
max°C
-2
-1
-3
0
2
4
5
6
4
2
4
5
6
7
8
7
7
6
5
5
5
4
3
0
3
3
3
2
3
2
1
3
3
2
3
4
Moonrise
11:48
11:59
12:10
12:22
12:37
12:56
1:23
2:05
3:06
4:27
5:57
7:28
Moonset
10:35
11:54
1:15
2:40
4:09
5:42
7:13
8:30
9:27
10:05
10:30
Sunrise
8:48
8:48
8:48
8:49
8:49
8:49
8:49
8:49
8:49
8:48
8:48
8:48
Sunset
4:37
4:37
4:37
4:38
4:39
4:40
4:42
4:43
4:44
4:45
4:46
4:47
Today's sea temperature in Middelharnis is
8.2° C
(Statistics for 25 Dec 1981-2005 – mean: 8.2 max: 10.0 min: 7.0°C)
Issued (local time): 6 am Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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