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 snow turning to light rain (total 7mm) on Wed night. Icy conditions (max 7°C on Thu morning, min -7°C on Mon night). Winds decreasing (near gales from the WNW on Mon night, light winds from the SE by Wed night).

Days 5–7 Weather Summary

Mostly dry. Icy conditions (max 2°C on Thu night, min -5°C on Fri morning). Winds decreasing (gales from the WSW on Fri afternoon, light winds from the W by Sun afternoon).

Days 8–10 Weather Summary

Mostly dry. Temperatures will be below freezing (max -1°C on Sun night, min -6°C on Tue afternoon). Winds increasing (light winds from the NW on Sun night, near gales from the WNW by Mon afternoon).

Days 11–13 Weather Summary

A dusting of snow turning to light rain (total 4mm) on Fri afternoon. Freeze-thaw conditions (max 4°C on Sat afternoon, min -2°C on Fri night). Winds increasing (light winds from the NE on Thu night, gales from the SW by Sat afternoon).

Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
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
9:46PM0.95m
1:11PM0.82m
10:34PM0.93m
2:01PM0.83m
11:27PM0.90m
2:49PM0.85m
00:27AM0.86m
3:33PM0.88m
2:30AM0.82m
4:14PM0.91m
4:16AM0.81m
4:50PM0.92m
5:40AM0.82m
5:19PM0.93m
7:04AM0.83m
5:43PM0.92m
8:09AM0.84m
6:08PM0.91m
8:56AM0.84m
6:36PM0.89m
9:37AM0.82m
7:09PM0.88m
10:16AM0.80m
Low Tide
5:25AM0.13m
4:47PM0.64m
6:19AM0.23m
5:53PM0.67m
7:14AM0.35m
7:58PM0.68m
8:12AM0.46m
9:09PM0.65m
9:08AM0.57m
10:05PM0.61m
10:01AM0.65m
10:54PM0.55m
10:52AM0.70m
11:40PM0.48m
11:39AM0.71m
00:24AM0.40m
12:22PM0.71m
1:06AM0.33m
1:00PM0.68m
1:47AM0.26m
1:36PM0.64m
2:26AM0.20m
2:09PM0.61m
Wave
height (m) 
direction
period (s) 
1.3
WNW
4
1.4
W
5
1.2
W
4
1
WSW
4
1.1
S
5
1.4
S
7
1.4
SSE
5
2
SSE
6
1.3
SSE
6
1.7
SW
5
1.9
SW
5
2.1
SW
6
1.8
WSW
5
1.5
W
5
1.3
WSW
5
0.8
W
4
0.4
WSW
3
0.2
ESE
10
0.2
ESE
9
0.9
NNW
4
1.3
NW
4
1.1
NW
4
0.9
NW
4
0.8
NW
4
0.6
NNW
3
1.3
SW
5
1.7
SSW
6
1.3
S
7
1.3
SSW
5
1.1
WSW
4
0.4
SE
5
1
ESE
4
1.4
S
5
0.9
WNW
4
1.6
SSW
5
2.2
S
7
light snow
cloud
cloud
part cloud
cloud
light rain
light rain
light rain
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
snow showers
cloud
part cloud
cloud
light snow
light rain
cloud
cloud
cloud
light snow
cloudy
cloudy
some clouds
cloudy
light rain
light rain
light rain
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
snow shwrs
cloudy
some clouds
cloudy
light snow
light rain
cloudy
cloudy
cloudy
 km/h
55
W
55
W
50
W
40
WSW
40
SSW
30
WSW
40
SSE
55
SSW
40
WSW
60
WSW
60
WSW
70
WSW
65
W
55
W
50
W
35
W
25
W
10
W
20
N
40
NW
55
WNW
40
NW
40
NW
35
NW
25
WNW
50
SW
55
SSW
45
WSW
50
WSW
45
W
10
NE
35
SE
50
WSW
35
W
55
SSW
60
SW
 mm 
2
4
1
3
max°C
-5
-4
-4
-2
2
3
6
7
4
2
-4
-4
0
0
-1
0
-1
-1
-1
-3
-3
-4
-5
-5
-4
-4
-1
1
2
2
-1
1
3
0
-1
4
Moonrise
9:46
11:00
12:11
1:19
2:26
3:33
4:42
5:50
6:56
7:57
8:49
Moonset
11:41
12:00
12:16
12:30
12:45
1:00
1:17
1:38
2:05
2:40
3:25
4:21
Sunrise
7:41
7:41
7:43
7:43
7:45
7:46
7:47
7:47
7:48
7:48
7:48
7:50
Sunset
4:14
4:14
4:14
4:14
4:14
4:14
4:14
4:15
4:15
4:15
4:15
4:15
Today's sea temperature in Old Harry is
4.3° C
(Statistics for 08 Dec 1981-2005 – mean: 2.4 max: 4.6 min: 0.9°C)
Issued (local time): 7 pm Monday 08 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest