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 |
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 |
90%
|
90%
|
≥95%
|
90%
|
70%
|
40%
|
30%
|
40%
|
50%
|
50%
|
| Temperature |
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
6°
|
5°
|
5°
|
5°
|
| Feels like temperature (°C) |
-2°
|
0°
|
0°
|
0°
|
0°
|
1°
|
1°
|
1°
|
1°
|
1°
|
| Wind direction and speed |
ENE
30
|
NE
25
|
NE
22
|
NE
21
|
NE
19
|
N
18
|
N
17
|
NNW
16
|
NNW
16
|
NW
18
|
| Wind gust (mph) |
46
|
42
|
40
|
37
|
35
|
31
|
32
|
32
|
34
|
36
|
| Visibility |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
90%
|
83%
|
83%
|
86%
|
79%
|
65%
|
59%
|
59%
|
59%
|
65%
|
| UV |
1
|
1
|
1
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| Wind direction and speed |
28
|
22
|
20
|
22
|
19
|
11
|
17
|
11
|
14
|
13
|
| Height of waves offshore (m) |
2.4
|
2.2
|
2.1
|
2.0
|
2.0
|
2.0
|
1.9
|
1.8
|
1.7
|
1.6
|
| Period of waves offshore (s) |
7
|
7
|
7
|
11
|
11
|
11
|
11
|
11
|
11
|
11
|
| 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 |
50%
|
40%
|
50%
|
50%
|
30%
|
40%
|
50%
|
70%
|
80%
|
80%
|
80%
|
70%
|
50%
|
40%
|
40%
|
50%
|
40%
|
40%
|
30%
|
20%
|
20%
|
30%
|
30%
|
30%
|
| Temperature (°C) |
5°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
8°
|
8°
|
8°
|
7°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
| Feels like temperature (°C) |
0°
|
1°
|
1°
|
1°
|
1°
|
1°
|
1°
|
1°
|
1°
|
1°
|
2°
|
2°
|
3°
|
3°
|
4°
|
4°
|
3°
|
2°
|
3°
|
3°
|
3°
|
3°
|
4°
|
5°
|
| Wind direction and speed (mph) |
NW
19
|
NW
21
|
NW
22
|
NW
22
|
NW
21
|
NW
20
|
WNW
21
|
WNW
23
|
WNW
23
|
WNW
22
|
WNW
21
|
WNW
20
|
WNW
19
|
WNW
19
|
WNW
19
|
WNW
18
|
WNW
16
|
W
14
|
W
12
|
WSW
10
|
SW
8
|
SSW
7
|
SSW
7
|
SSE
8
|
| Wind gust (mph) |
38
|
40
|
40
|
41
|
44
|
45
|
45
|
45
|
44
|
43
|
41
|
40
|
38
|
36
|
36
|
34
|
31
|
30
|
25
|
22
|
19
|
19
|
22
|
26
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
63%
|
59%
|
59%
|
57%
|
58%
|
58%
|
59%
|
62%
|
69%
|
73%
|
69%
|
72%
|
67%
|
64%
|
60%
|
59%
|
62%
|
61%
|
60%
|
56%
|
54%
|
53%
|
55%
|
59%
|
| UV |
-
|
-
|
-
|
-
|
-
|
-
|
-
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| Wind direction and speed |
23
|
22
|
20
|
23
|
27
|
23
|
22
|
22
|
23
|
23
|
24
|
21
|
20
|
17
|
16
|
17
|
15
|
12
|
12
|
11
|
10
|
11
|
11
|
12
|
| Height of waves offshore (m) |
1.6
|
1.7
|
1.6
|
1.6
|
1.7
|
1.8
|
1.8
|
1.8
|
1.7
|
1.7
|
1.7
|
1.7
|
1.8
|
1.8
|
1.7
|
1.7
|
1.6
|
1.5
|
1.4
|
1.4
|
1.3
|
1.3
|
1.2
|
1.2
|
| Period of waves offshore (s) |
11
|
11
|
11
|
11
|
11
|
10
|
10
|
10
|
10
|
10
|
10
|
6
|
6
|
6
|
7
|
7
|
7
|
9
|
9
|
9
|
9
|
9
|
9
|
9
|
| 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%
|
80%
|
60%
|
20%
|
60%
|
80%
|
50%
|
40%
|
| Temperature (°C) |
8°
|
9°
|
9°
|
10°
|
12°
|
14°
|
14°
|
14°
|
| Feels like temperature (°C) |
5°
|
5°
|
5°
|
5°
|
7°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
SSW
11
|
S
20
|
SSE
27
|
S
32
|
S
31
|
SSW
28
|
SSW
31
|
SSW
31
|
| Wind gust (mph) |
39
|
50
|
57
|
57
|
51
|
53
|
54
|
54
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
65%
|
67%
|
83%
|
84%
|
86%
|
86%
|
86%
|
84%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
13
|
23
|
31
|
35
|
32
|
33
|
36
|
36
|
| Height of waves offshore (m) |
1.2
|
1.3
|
1.3
|
1.5
|
1.9
|
2.0
|
2.4
|
2.6
|
| Period of waves offshore (s) |
9
|
9
|
9
|
9
|
9
|
10
|
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 |
50%
|
50%
|
50%
|
70%
|
70%
|
70%
|
80%
|
90%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
14°
|
15°
|
14°
|
14°
|
12°
|
| Feels like temperature (°C) |
9°
|
9°
|
10°
|
9°
|
10°
|
10°
|
10°
|
9°
|
| Wind direction and speed (mph) |
SSW
32
|
SSW
32
|
SSW
29
|
SSW
28
|
SSW
26
|
SSW
22
|
SSW
23
|
SW
19
|
| Wind gust (mph) |
54
|
55
|
53
|
54
|
53
|
49
|
45
|
39
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
| Humidity |
84%
|
82%
|
83%
|
81%
|
79%
|
79%
|
79%
|
85%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
36
|
37
|
37
|
39
|
35
|
25
|
26
|
23
|
| Height of waves offshore (m) |
2.8
|
3.0
|
3.0
|
3.1
|
3.0
|
2.8
|
2.5
|
2.0
|
| Period of waves offshore (s) |
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 |
70%
|
70%
|
70%
|
70%
|
70%
|
60%
|
70%
|
60%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
10°
|
11°
|
11°
|
11°
|
10°
|
| Feels like temperature (°C) |
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
| Wind direction and speed (mph) |
SW
18
|
SW
19
|
WSW
22
|
WSW
22
|
WSW
23
|
WSW
23
|
W
25
|
W
22
|
| Wind gust (mph) |
38
|
40
|
44
|
50
|
53
|
51
|
44
|
41
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
83%
|
82%
|
72%
|
70%
|
71%
|
68%
|
66%
|
67%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
21
|
23
|
26
|
30
|
29
|
29
|
27
|
25
|
| Height of waves offshore (m) |
1.9
|
1.9
|
2.2
|
2.3
|
2.6
|
3.2
|
3.2
|
2.6
|
| Period of waves offshore (s) |
11
|
11
|
11
|
11
|
11
|
11
|
10
|
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 |
60%
|
50%
|
50%
|
50%
|
60%
|
70%
|
60%
|
60%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
7°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
W
19
|
W
20
|
W
17
|
WSW
16
|
WSW
16
|
SW
15
|
W
16
|
WSW
15
|
| Wind gust (mph) |
41
|
37
|
33
|
32
|
32
|
30
|
31
|
30
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
| Humidity |
70%
|
69%
|
69%
|
72%
|
73%
|
75%
|
77%
|
76%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
25
|
25
|
25
|
23
|
24
|
23
|
21
|
19
|
| Height of waves offshore (m) |
2.4
|
2.2
|
2.4
|
2.1
|
1.9
|
1.6
|
1.4
|
1.2
|
| Period of waves offshore (s) |
11
|
11
|
11
|
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 |
50%
|
50%
|
30%
|
30%
|
30%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
11°
|
11°
|
| Feels like temperature (°C) |
9°
|
9°
|
8°
|
9°
|
9°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
W
14
|
NNW
15
|
NNW
14
|
N
13
|
N
12
|
NNW
11
|
N
10
|
NNE
10
|
| Wind gust (mph) |
29
|
28
|
28
|
26
|
24
|
24
|
24
|
23
|
| Visibility (description) |
VG
|
G
|
G
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
77%
|
77%
|
77%
|
74%
|
74%
|
72%
|
70%
|
72%
|
| UV |
-
|
-
|
-
|
1
|
1
|
1
|
-
|
-
|
| Wind direction and speed |
18
|
– | – | – | – | – | – | – |
| Height of waves offshore (m) |
1.2
|
– | – | – | – | – | – | – |
| Period of waves offshore (s) |
10
|
– | – | – | – | – | – | – |
| Direction of waves offshore |
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Tooltip header
Tide times
Thursday 21 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 21 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 21 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 21 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 22 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 22 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 22 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 22 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
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.
UK video forecast
More from the Met Office
-
CLIMATE CHANGE
Causes of climate change
Read -
LEARN ABOUT
What is the difference between rain and showers?
Read -
LEARN ABOUT
Weather heroes DIY activity
Read -
LEARN ABOUT
Ottery St Mary Hailstorm October 2008
Read -
LEARN ABOUT
UK Snow 4 to 5 February 2012
Read -
WARNINGS AND ADVICE
5 tips for staying safe in snow
Read