Grandes Rocques (Beach) (Guernsey) weather
Find a forecast
Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.
- Head to a lifeguarded beach; check the RNLI lifeguarded beach tool
- Follow RNLI Float to Live advice if you find yourself struggling in the water
- Know what to do if you get caught in a rip current (RNLI)
- Check the tide times to avoid getting cut off by the tide coming in
- Call 999 and ask for the coastguard in an emergency
- Learn more about staying safe at the beach
Highest possible:
Lowest possible:
| Time |
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
20%
|
70%
|
80%
|
80%
|
90%
|
80%
|
60%
|
50%
|
40%
|
50%
|
50%
|
50%
|
30%
|
30%
|
| Temperature |
12°
|
12°
|
13°
|
13°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) |
6°
|
7°
|
7°
|
7°
|
8°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed |
S
37
|
S
37
|
S
36
|
S
35
|
S
33
|
SSW
33
|
SSW
34
|
SSW
35
|
SSW
36
|
SSW
36
|
SSW
35
|
SSW
35
|
SSW
35
|
SSW
35
|
SSW
36
|
| Wind gust (mph) |
57
|
57
|
55
|
55
|
53
|
53
|
54
|
54
|
53
|
52
|
52
|
52
|
53
|
53
|
53
|
| Visibility |
E
|
E
|
E
|
VG
|
VG
|
VG
|
G
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
84%
|
84%
|
85%
|
88%
|
89%
|
86%
|
86%
|
85%
|
85%
|
85%
|
85%
|
85%
|
85%
|
84%
|
84%
|
| UV |
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| Wind direction and speed |
35
|
34
|
33
|
32
|
30
|
31
|
33
|
32
|
32
|
32
|
33
|
32
|
33
|
33
|
33
|
| Height of waves offshore (m) |
1.9
|
2.0
|
2.0
|
2.0
|
2.0
|
2.1
|
2.3
|
2.4
|
2.5
|
2.5
|
2.6
|
2.7
|
2.8
|
2.9
|
3.0
|
| Period of waves offshore (s) |
8
|
9
|
9
|
10
|
10
|
10
|
10
|
11
|
11
|
11
|
11
|
11
|
12
|
12
|
12
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
20%
|
20%
|
40%
|
50%
|
40%
|
50%
|
70%
|
90%
|
90%
|
90%
|
≥95%
|
≥95%
|
90%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
16°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
15°
|
15°
|
14°
|
14°
|
12°
|
12°
|
11°
|
11°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
8°
|
8°
|
| Wind direction and speed (mph) |
SSW
35
|
SSW
35
|
SSW
34
|
SSW
34
|
SSW
33
|
SSW
34
|
SSW
34
|
SSW
34
|
SSW
34
|
SSW
35
|
SSW
34
|
SSW
33
|
SSW
32
|
SSW
31
|
SSW
31
|
SSW
29
|
SSW
29
|
SSW
28
|
SSW
26
|
SW
23
|
WSW
19
|
WSW
16
|
WSW
16
|
WSW
17
|
| Wind gust (mph) |
52
|
52
|
51
|
49
|
50
|
51
|
53
|
54
|
54
|
55
|
55
|
54
|
54
|
53
|
52
|
49
|
49
|
50
|
50
|
40
|
29
|
29
|
29
|
30
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
VG
|
M
|
M
|
M
|
M
|
M
|
M
|
| Humidity |
82%
|
78%
|
76%
|
75%
|
75%
|
74%
|
73%
|
72%
|
70%
|
69%
|
70%
|
69%
|
71%
|
74%
|
75%
|
76%
|
79%
|
79%
|
84%
|
88%
|
90%
|
89%
|
89%
|
86%
|
| UV |
-
|
-
|
-
|
-
|
-
|
-
|
-
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| Wind direction and speed |
33
|
33
|
33
|
33
|
33
|
34
|
34
|
35
|
35
|
35
|
34
|
33
|
33
|
32
|
31
|
28
|
28
|
29
|
29
|
25
|
19
|
18
|
19
|
21
|
| Height of waves offshore (m) |
3.0
|
3.1
|
3.1
|
3.1
|
3.2
|
3.2
|
3.3
|
3.3
|
3.4
|
3.4
|
3.4
|
3.3
|
3.2
|
3.1
|
3.0
|
2.9
|
2.7
|
2.6
|
2.5
|
2.5
|
2.5
|
2.3
|
2.1
|
2.1
|
| Period of waves offshore (s) |
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
13
|
13
|
13
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
12
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
80%
|
80%
|
60%
|
50%
|
60%
|
80%
|
80%
|
80%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
12°
|
11°
|
10°
|
10°
|
| Feels like temperature (°C) |
8°
|
8°
|
8°
|
7°
|
8°
|
7°
|
6°
|
6°
|
| Wind direction and speed (mph) |
WSW
17
|
WSW
18
|
WSW
20
|
W
21
|
W
21
|
WSW
22
|
WSW
22
|
WSW
21
|
| Wind gust (mph) |
30
|
34
|
38
|
41
|
45
|
46
|
44
|
45
|
| Visibility (description) |
M
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
85%
|
82%
|
68%
|
62%
|
59%
|
65%
|
66%
|
67%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
20
|
22
|
25
|
25
|
26
|
26
|
26
|
26
|
| Height of waves offshore (m) |
2.1
|
2.0
|
2.3
|
2.5
|
2.6
|
2.7
|
2.6
|
2.5
|
| Period of waves offshore (s) |
12
|
11
|
11
|
11
|
12
|
11
|
11
|
11
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
90%
|
80%
|
80%
|
70%
|
60%
|
70%
|
60%
|
70%
|
| Temperature (°C) |
9°
|
9°
|
9°
|
9°
|
11°
|
10°
|
9°
|
10°
|
| Feels like temperature (°C) |
6°
|
6°
|
6°
|
6°
|
8°
|
8°
|
7°
|
7°
|
| Wind direction and speed (mph) |
WSW
19
|
WSW
18
|
W
17
|
WSW
14
|
WSW
13
|
SW
12
|
SSW
12
|
SE
15
|
| Wind gust (mph) |
40
|
38
|
34
|
33
|
27
|
23
|
25
|
30
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
67%
|
71%
|
73%
|
75%
|
71%
|
68%
|
75%
|
80%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
27
|
24
|
21
|
19
|
18
|
16
|
17
|
18
|
| Height of waves offshore (m) |
2.6
|
2.4
|
2.1
|
1.7
|
1.5
|
1.4
|
1.2
|
1.1
|
| Period of waves offshore (s) |
9
|
10
|
10
|
10
|
10
|
10
|
10
|
10
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
70%
|
60%
|
60%
|
60%
|
40%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
10°
|
9°
|
9°
|
9°
|
10°
|
10°
|
9°
|
10°
|
| Feels like temperature (°C) |
7°
|
6°
|
5°
|
6°
|
6°
|
7°
|
6°
|
6°
|
| Wind direction and speed (mph) |
ESE
16
|
E
18
|
NE
17
|
NNE
16
|
NNE
17
|
N
17
|
N
16
|
NNE
15
|
| Wind gust (mph) |
36
|
38
|
33
|
33
|
30
|
31
|
29
|
29
|
| Visibility (description) |
E
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
83%
|
82%
|
77%
|
77%
|
75%
|
69%
|
67%
|
67%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
19
|
22
|
23
|
24
|
23
|
21
|
20
|
19
|
| Height of waves offshore (m) |
1.0
|
0.9
|
0.9
|
1.1
|
1.3
|
1.9
|
1.7
|
1.5
|
| Period of waves offshore (s) |
10
|
10
|
10
|
10
|
6
|
7
|
7
|
6
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
20%
|
20%
|
10%
|
20%
|
20%
|
30%
|
| Temperature (°C) |
10°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
| Feels like temperature (°C) |
7°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
| Wind direction and speed (mph) |
NNE
14
|
NE
14
|
ENE
13
|
ENE
14
|
ESE
14
|
ESE
14
|
ESE
15
|
ESE
16
|
| Wind gust (mph) |
28
|
28
|
27
|
26
|
27
|
29
|
32
|
34
|
| Visibility (description) |
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
G
|
| Humidity |
67%
|
68%
|
69%
|
70%
|
70%
|
71%
|
74%
|
75%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
17
|
17
|
17
|
17
|
18
|
19
|
21
|
23
|
| Height of waves offshore (m) |
1.3
|
1.1
|
1.0
|
1.0
|
0.9
|
0.9
|
0.9
|
1.0
|
| Period of waves offshore (s) |
6
|
6
|
10
|
10
|
10
|
10
|
10
|
15
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
|
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
30%
|
30%
|
20%
|
30%
|
30%
|
30%
|
| Temperature (°C) |
11°
|
10°
|
10°
|
10°
|
11°
|
11°
|
11°
|
11°
|
| Feels like temperature (°C) |
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
| Wind direction and speed (mph) |
SE
17
|
SE
19
|
SE
18
|
SE
18
|
SE
17
|
SE
16
|
SE
16
|
SSE
15
|
| Wind gust (mph) |
35
|
36
|
36
|
37
|
36
|
34
|
35
|
34
|
| Visibility (description) |
G
|
G
|
G
|
G
|
VG
|
G
|
G
|
G
|
| Humidity |
77%
|
80%
|
84%
|
85%
|
84%
|
84%
|
84%
|
86%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
23
|
– | – | – | – | – | – | – |
| Height of waves offshore (m) |
1.0
|
– | – | – | – | – | – | – |
| Period of waves offshore (s) |
15
|
– | – | – | – | – | – | – |
| Direction of waves offshore |
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Tooltip header
Tide times
Saturday 23 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Saturday 23 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Saturday 23 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Saturday 23 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 24 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 24 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 24 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 24 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 25 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 25 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 25 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 25 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 26 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 26 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 26 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 26 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 27 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 27 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 27 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 27 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 28 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 28 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 28 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 28 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 29 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 29 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 29 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 29 November
Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
UK video forecast
More from the Met Office
-
CLIMATE CHANGE
Causes of climate change
Read -
LEARN ABOUT
Weather heroes DIY activity
Read -
NEWS AND MEDIA
Powered by the Met Office
Read -
LEARN ABOUT
Ottery St Mary Hailstorm October 2008
Read -
LEARN ABOUT
Bringing data to life DIY activity
Read -
WARNINGS AND ADVICE
5 tips for staying safe in strong wind
Read