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 — and sunset is at —.

Days 1–4 Weather Summary

A dusting of new snow. Icy conditions (max 1°C on Thu afternoon, min -13°C on Tue night). Winds decreasing (gales from the WSW on Tue night, light winds from the SSW by Wed night).

Days 5–7 Weather Summary

A light covering of new snow, mostly falling on Fri night. Air temperatures will be below freezing (max -4°C on Fri night, min -13°C on Sat morning). Winds decreasing (gales from the WNW on Sat afternoon, fresh winds from the WNW by Sun night).

Days 8–10 Weather Summary

A dusting of new snow. Temperatures will be below freezing (max -3°C on Tue night, min -7°C on Mon night). Winds decreasing (strong winds from the WNW on Wed morning, calm by Thu afternoon).

Days 11–13 Weather Summary

A light covering of new snow, mostly falling on Fri afternoon. Temperatures will be below freezing (max -1°C on Sat night, min -5°C on Thu night). Winds increasing (moderate winds from the E on Thu night, gales from the NW by Sat night).

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thu
5
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
night
AM
Wave Height Map
High Tide
8:53PM0.90m
11:28AM0.78m
9:35PM0.90m
11:38AM0.80m
10:20PM0.91m
11:37AM0.83m
11:06PM0.91m
11:56AM0.87m
11:57PM0.89m
12:24PM0.91m
00:58AM0.86m
12:57PM0.94m
3:17AM0.82m
1:40PM0.96m
5:16AM0.83m
2:50PM0.97m
7:05AM0.86m
4:14PM0.97m
8:17AM0.88m
5:20PM0.97m
8:57AM0.89m
6:19PM0.97m
9:33AM0.87m
7:14PM0.96m
10:07AM0.85m
8:06PM0.94m
10:39AM0.83m
Low Tide
3:58AM0.16m
3:43PM0.52m
4:27AM0.20m
4:25PM0.51m
4:56AM0.27m
5:11PM0.50m
5:26AM0.37m
6:05PM0.50m
5:57AM0.48m
7:11PM0.48m
6:31AM0.60m
8:25PM0.46m
7:07AM0.71m
9:36PM0.42m
8:04AM0.80m
10:45PM0.37m
10:42AM0.82m
11:55PM0.31m
11:51AM0.79m
1:06AM0.24m
12:47PM0.73m
2:11AM0.17m
1:36PM0.65m
3:03AM0.13m
2:21PM0.57m
3:43AM0.13m
3:05PM0.50m
Wave
height (m) 
direction
period (s) 
1.8
W
5
1.5
W
5
1
W
4
0.5
W
3
1
SSE
4
1.4
S
6
1.3
WSW
4
1.4
WSW
5
1
WSW
4
1.5
WSW
5
1.4
W
5
1.6
WNW
5
1.4
WNW
5
1.1
WNW
4
0.9
WNW
4
0.7
WNW
4
0.7
W
4
0.6
W
4
0.6
W
3
0.7
WSW
4
0.9
SW
4
0.7
SSW
5
1
W
4
0.4
WNW
3
0.7
WSW
4
0.4
W
3
0.2
ESE
18
1.1
ESE
4
1.9
E
6
2.5
ESE
8
2.1
ESE
8
1.9
NE
9
1.9
NNW
5
1.8
NW
5
1.4
NW
4
1.5
NW
5
1.1
NW
4
0.9
NW
4
0.6
N
3
1.6
NE
6
1.8
NE
7
1.6
NE
7
1.5
ENE
8
1.2
NE
7
1.1
NE
6
0.7
NE
6
0.5
NE
5
cloud
cloud
cloud
cloud
light snow
snow showers
part cloud
clear
cloud
light snow
light snow
light snow
light snow
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light snow
cloud
part cloud
part cloud
part cloud
cloud
cloud
light snow
light snow
light snow
light snow
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light snow
cloud
cloud
cloud
cloud
cloudy
cloudy
cloudy
cloudy
light snow
snow shwrs
some clouds
clear
cloudy
light snow
light snow
light snow
light snow
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
light snow
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
light snow
light snow
light snow
light snow
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
light snow
cloudy
cloudy
cloudy
cloudy
 km/h
65
W
60
W
45
W
25
W
40
SE
45
WSW
50
W
50
W
40
WSW
55
W
55
WNW
65
WNW
55
WNW
45
WNW
35
WNW
35
WNW
35
WSW
30
W
35
WNW
35
WSW
35
WSW
25
SW
40
WNW
25
W
35
W
25
W
5
ENE
45
E
50
ENE
55
E
45
NNE
60
NW
70
NW
65
NW
55
NW
60
NW
45
WNW
35
NW
30
N
50
NNE
50
N
40
N
40
N
35
N
35
NNW
30
NNW
20
NW
 mm 
max°C
-6
-11
-8
-5
-2
1
-1
-4
-5
-4
-13
-11
-10
-11
-11
-9
-8
-8
-7
-6
-5
-3
-4
-4
-4
-6
-6
-3
-3
-2
-2
-4
-3
-1
-3
-4
-4
-5
-5
-3
-3
-4
-3
-4
-5
-5
-4
Moonrise
9:13
9:29
9:44
10:01
10:19
10:42
11:12
11:54
12:51
2:03
3:25
4:49
6:11
7:29
8:43
Moonset
8:07
9:22
10:37
11:55
1:15
2:39
4:01
5:17
6:19
7:05
7:38
8:03
8:22
8:39
8:54
Sunrise
7:43
7:43
7:41
7:41
7:39
7:39
7:37
7:37
7:35
7:33
7:33
7:31
7:30
7:28
7:28
7:26
Sunset
4:50
4:51
4:52
4:53
4:55
4:57
4:59
5:00
5:01
5:04
5:05
5:07
5:07
5:09
5:10
Today's sea temperature in Old Harry is
0.4° C
(Statistics for 20 Jan 1981-2005 – mean: -0.4 max: 0.3 min: -1.4°C)
Issued (local time): 7 pm Tuesday 20 Jan 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest