Caernarfon Sea Conditions and Tide Table

Caernarfon 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

Light rain (total 9mm), mostly falling on Fri night. Low air temperatures (max 9°C on Sun afternoon, min 5°C on Fri night). Winds increasing (light winds from the WNW on Sat night, strong winds from the SW by Sun morning).

Days 5–7 Weather Summary

Moderate rain (total 10mm), heaviest on Thu afternoon. Cool air temperatures (max 12°C on Tue afternoon, min 6°C on Thu afternoon). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 2mm), mostly falling on Fri morning. Very mild (max 10°C on Sun afternoon, min 4°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the W by Fri night).

Days 11–13 Weather Summary

Heavy rain (total 35mm), heaviest during Mon night. Very mild (max 14°C on Mon morning, min 4°C on Mon night). Winds decreasing (strong winds from the NW on Mon night, calm by Wed afternoon).

Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sun
12
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
6:13PM5.06m
6:45AM5.37m
7:36PM5.31m
7:56AM5.78m
8:35PM5.71m
8:49AM6.23m
9:21PM6.09m
9:33AM6.61m
10:00PM6.41m
10:11AM6.87m
10:35PM6.63m
10:47AM6.98m
11:08PM6.73m
11:21AM6.96m
11:40PM6.71m
11:55AM6.80m
00:11AM6.56m
12:28PM6.52m
00:43AM6.31m
1:02PM6.15m
1:16AM5.97m
1:38PM5.71m
1:53AM5.58m
2:18PM5.25m
2:37AM5.18m
3:09PM4.81m
3:36AM4.85m
4:23PM4.51m
Low Tide
00:35AM2.08m
1:24PM1.56m
1:51AM1.77m
2:29PM1.13m
2:48AM1.37m
3:19PM0.72m
3:33AM0.99m
4:00PM0.42m
4:12AM0.69m
4:36PM0.24m
4:48AM0.49m
5:09PM0.21m
5:21AM0.42m
5:41PM0.31m
5:53AM0.45m
6:12PM0.52m
6:26AM0.61m
6:43PM0.83m
6:59AM0.88m
7:16PM1.20m
7:35AM1.23m
7:52PM1.60m
8:16AM1.64m
8:35PM2.00m
9:08AM2.05m
9:31PM2.34m
10:17AM2.34m
10:46PM2.53m
Wave
height (m) 
direction
period (s) 
1.3
WNW
5
1.6
WNW
6
1.3
WNW
6
0.9
NW
5
1.3
WSW
5
1.7
WSW
7
1.3
WNW
5
1.2
WNW
5
0.9
WNW
5
0.5
NW
4
0.5
W
4
0.4
WNW
4
0.3
W
3
0.3
W
4
0.3
WSW
3
0.4
NW
5
0.4
SW
5
0.9
SW
5
0.9
WNW
5
0.4
W
4
0.2
WSW
6
1.5
WSW
6
1.7
WNW
6
1
WNW
5
0.5
W
4
0.9
SW
5
0.9
SW
6
0.5
SW
5
0.4
SW
5
0.5
SW
5
0.8
NW
3
3
NW
8
2.5
NW
8
1.4
NW
7
0.6
NNW
5
0.2
NNW
3
0.1
W
16
0.3
SW
3
0.3
SW
3
0.2
WSW
3
0.2
N
2
0.5
N
3
0.8
NW
6
0.5
N
4
0.4
NNW
3
0.1
NW
3
0.1
N
2
rain showers
rain showers
light rain
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
cloud
mod rain
part cloud
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
heavy rain
mod rain
light rain
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
rain shwrs
rain shwrs
light rain
some clouds
light rain
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
light rain
light rain
light rain
cloudy
mod rain
some clouds
light rain
rain shwrs
some clouds
some clouds
some clouds
some clouds
clear
clear
some clouds
cloudy
cloudy
heavy rain
mod rain
light rain
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
 km/h
25
WNW
30
WNW
30
NW
15
W
35
SW
35
WSW
30
WNW
25
WNW
20
WNW
10
SSW
20
W
20
WNW
10
WSW
15
SSW
15
SSW
10
NE
15
S
25
WSW
15
WNW
10
SSE
5
E
35
W
30
WNW
20
WNW
15
S
30
S
25
SSW
15
S
15
S
20
S
25
NNW
40
NNW
40
NNW
30
NNE
15
NE
5
ENE
5
S
15
S
10
S
0
NW
15
NNE
20
NNE
15
NNE
15
NNE
15
NNE
5
NE
10
NE
 mm 
3
2
2
2
1
1
2
6
1
1
24
9
2
max°C
7
7
7
7
8
9
9
8
9
10
11
12
11
10
10
8
10
9
6
6
7
8
8
9
8
9
10
8
14
14
10
6
9
8
7
8
7
9
8
7
8
7
7
8
8
7
11
Moonrise
1:07
3:33
4:56
6:16
7:34
8:51
10:09
11:27
12:44
1:54
2:55
3:41
4:13
4:36
4:53
Moonset
4:42
5:57
6:09
6:18
6:27
6:36
6:46
6:58
7:14
7:36
8:09
8:55
9:55
11:07
12:26
1:47
Sunrise
6:00
6:58
5:54
5:52
5:50
5:48
5:46
5:43
5:41
5:39
5:35
5:33
5:31
5:28
5:26
5:24
Sunset
6:44
7:45
6:47
6:50
6:52
6:52
6:54
6:57
6:59
7:00
7:01
7:04
7:06
7:07
7:08
Today's sea temperature in Caernarfon is
8.7° C
(Statistics for 27 Mar 1981-2005 – mean: 7.8 max: 9.1 min: 6.0°C)
Issued (local time): 11 pm Friday 27 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest