Old Harry Sea Conditions and Tide Table

Old Harry 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 07:18 AM and sunset is at 07:09 PM.

Days 1–3 Weather Summary

Moderate rain (total 11mm), heaviest on Mon night. Icy conditions (max 7°C on Mon night, min -4°C on Sun morning). Winds increasing (calm on Sun night, near gales from the S by Tue morning).

Days 4–6 Weather Summary

Mostly dry. Air temperatures will be below freezing (max -1°C on Fri night, min -10°C on Wed night). Winds increasing (calm on Thu afternoon, strong winds from the S by Fri night).

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Sat afternoon. Freeze-thaw conditions (max 1°C on Sat afternoon, min -10°C on Sun night). Mainly near gales.

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Wed afternoon. Freeze-thaw conditions (max 1°C on Thu night, min -7°C on Tue morning). Winds decreasing (near gales from the WNW on Tue night, fresh winds from the NNE by Thu morning).

Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Mon
30
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
8:53AM0.86m
6:19PM0.89m
9:14AM0.85m
7:16PM0.89m
9:35AM0.84m
8:09PM0.89m
9:49AM0.83m
8:58PM0.89m
9:56AM0.82m
9:46PM0.89m
10:09AM0.84m
10:34PM0.89m
10:31AM0.86m
11:22PM0.88m
10:57AM0.90m
00:14AM0.87m
11:27AM0.94m
1:25AM0.84m
12:01PM0.97m
3:21AM0.83m
12:38PM0.98m
4:46AM0.84m
1:25PM0.98m
6:10AM0.86m
2:40PM0.95m
7:30AM0.89m
4:55PM0.93m
8:12AM0.91m
6:23PM0.92m
Low Tide
12:51PM0.74m
1:57AM0.40m
1:35PM0.65m
2:34AM0.34m
2:15PM0.54m
3:04AM0.30m
2:53PM0.44m
3:33AM0.29m
3:32PM0.34m
4:03AM0.30m
4:12PM0.26m
4:33AM0.35m
4:54PM0.20m
5:04AM0.43m
5:37PM0.19m
5:34AM0.52m
6:25PM0.20m
6:04AM0.62m
7:20PM0.26m
6:35AM0.71m
8:32PM0.32m
7:07AM0.79m
9:59PM0.38m
7:53AM0.85m
11:24PM0.42m
11:41AM0.81m
00:46AM0.42m
12:45PM0.73m
Wave
height (m) 
direction
period (s) 
1.4
E
8
1
ESE
8
0.4
ESE
8
0.4
SE
8
0.6
SSE
3
2.2
SSE
7
2.2
SSE
6
2.1
SSE
6
1.3
SE
9
0.9
SE
9
0.8
W
4
0.5
SE
9
0.4
SE
10
0.3
SE
9
0.3
SE
9
0.3
SE
8
0.5
S
3
1
S
4
1.5
S
5
2
SSE
6
1
SE
8
0.9
ESE
8
0.8
ESE
8
0.8
NW
4
0.6
NW
3
0.8
NW
4
0.8
NW
4
0.9
NNW
4
1.2
NW
4
1.2
NW
4
1.3
WNW
4
1.4
NW
4
1.1
NE
7
1.3
ENE
8
1.4
NE
7
2.1
NE
9
1.6
NE
8
1.4
NE
8
0.8
NE
7
0.7
NE
7
0.6
NE
6
0.7
ENE
3
1
ENE
5
0.9
ENE
5
0.7
ENE
6
1.1
NE
8
0.9
NE
7
part cloud
part cloud
cloud
cloud
cloud
mod rain
light rain
light rain
rain showers
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
light snow
part cloud
cloud
cloud
snow showers
light snow
cloud
light snow
cloud
cloud
part cloud
cloud
light snow
part cloud
cloud
snow showers
clear
clear
clear
clear
part cloud
cloud
light snow
light snow
cloud
cloud
light snow
cloud
some clouds
some clouds
cloudy
cloudy
cloudy
mod rain
light rain
light rain
rain shwrs
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
cloudy
light snow
some clouds
cloudy
cloudy
snow shwrs
light snow
cloudy
light snow
cloudy
cloudy
some clouds
cloudy
light snow
some clouds
cloudy
snow shwrs
clear
clear
clear
clear
some clouds
cloudy
light snow
light snow
cloudy
cloudy
light snow
cloudy
 km/h
25
NNW
25
NW
5
W
10
SSE
35
SSE
55
S
60
S
55
S
35
SW
35
WNW
35
W
25
WNW
10
WNW
5
W
10
ESE
15
S
25
S
40
S
45
S
55
S
30
WNW
35
NW
35
NW
35
WNW
30
NW
40
NW
40
NW
40
NW
50
NW
50
NW
60
WNW
55
NW
30
N
30
NNE
35
NNE
50
NNE
40
N
35
N
15
NW
15
NNW
10
NNW
30
ENE
30
NE
20
N
10
NW
25
NNW
30
NW
 mm 
7
1
2
1
max°C
-4
-3
-3
-3
1
7
7
7
2
-8
-8
-8
-9
-8
-4
-3
-2
-1
0
1
0
-6
-7
-7
-10
-9
-8
-6
-5
-3
-3
-3
-3
-2
-1
1
-3
-1
-1
-4
-4
-3
-1
-1
-1
-2
-2
Moonrise
6:00
6:22
6:40
6:57
7:13
7:31
7:51
8:17
8:51
9:38
10:39
11:52
1:12
2:32
3:50
5:04
Moonset
3:14
4:30
5:46
7:04
8:23
9:45
11:10
12:35
1:56
3:06
4:00
4:40
5:09
5:31
5:49
Sunrise
7:18
7:16
7:15
7:13
7:11
7:09
7:07
7:05
7:03
7:01
6:58
6:56
6:54
6:52
6:50
6:48
Sunset
7:09
7:12
7:13
7:14
7:15
7:16
7:19
7:20
7:22
7:22
7:24
7:25
7:27
7:29
7:30
7:31
Today's sea temperature in Old Harry is
-1.7° C
(Statistics for 15 Mar 1981-2005 – mean: -0.5 max: -0.0 min: -1.3°C)
Issued (local time): 2 am Sunday 15 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest