Half Moon Bay Sea Conditions and Tide Table

Half Moon Bay 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

Heavy rain (total 28mm), heaviest during Wed afternoon. Cool air temperatures (max 13°C on Tue morning, min 8°C on Wed night). Winds increasing (calm on Mon night, near gales from the S by Wed afternoon).

Days 5–7 Weather Summary

Light rain (total 8mm), mostly falling on Fri morning. Cool air temperatures (max 13°C on Sun afternoon, min 6°C on Fri morning). Winds increasing (calm on Sat morning, fresh winds from the S by Sun afternoon).

Days 8–10 Weather Summary

Moderate rain (total 12mm), heaviest on Sun night. Very mild (max 11°C on Sun night, min 8°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the NW by Mon night).

Days 11–13 Weather Summary

Moderate rain (total 14mm), heaviest on Fri afternoon. Very mild (max 12°C on Fri afternoon, min 8°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the NW by Sat night).

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Sat
22
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
10:17PM1.47m
9:15AM1.68m
10:49PM1.51m
10:02AM1.65m
11:16PM1.54m
10:45AM1.60m
11:40PM1.55m
11:26AM1.52m
00:02AM1.57m
12:06PM1.43m
00:22AM1.58m
12:48PM1.33m
00:44AM1.58m
1:33PM1.23m
1:10AM1.57m
2:26PM1.12m
1:40AM1.55m
3:33PM1.04m
2:17AM1.51m
5:08PM1.00m
7:04PM1.04m
Low Tide
3:33AM0.70m
4:10PM-0.05m
4:16AM0.59m
4:43PM0.01m
4:55AM0.48m
5:12PM0.10m
5:32AM0.39m
5:40PM0.22m
6:07AM0.31m
6:07PM0.34m
6:42AM0.24m
6:34PM0.49m
7:19AM0.20m
7:02PM0.63m
7:58AM0.17m
7:30PM0.77m
8:44AM0.17m
8:01PM0.90m
9:39AM0.17m
8:42PM1.01m
10:44AM0.17m
10:06PM1.09m
11:55AM0.13m
Wave
height (m) 
direction
period (s) 
1.5
W
13
1.6
W
12
1.4
W
12
1.3
W
12
2.2
S
6
2.4
SSW
8
2.3
W
14
2.4
W
13
2.2
W
14
2
W
13
1.9
W
13
1.9
W
13
1.8
W
12
1.8
W
12
1.8
W
12
1.6
WNW
12
1.6
W
17
1.9
W
16
2.2
W
14
2.1
W
14
2.3
W
14
2.5
W
14
2.1
W
13
2
W
13
1.6
W
12
1.2
W
12
1
W
11
0.9
W
15
1.1
W
13
1.5
W
12
1.4
W
12
1.4
W
13
1.8
W
13
2.4
W
18
2.5
W
17
2.4
W
16
clear
clear
clear
light rain
cloud
heavy rain
light rain
rain showers
clear
light rain
mod rain
cloud
rain showers
clear
part cloud
clear
cloud
part cloud
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
cloud
cloud
light rain
mod rain
rain showers
clear
clear
clear
clear
clear
light rain
cloudy
heavy rain
light rain
rain shwrs
clear
light rain
mod rain
cloudy
rain shwrs
clear
some clouds
clear
cloudy
some clouds
rain shwrs
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
clear
cloudy
cloudy
light rain
mod rain
rain shwrs
clear
clear
 km/h
5
WNW
15
SSW
15
SSW
20
S
50
S
45
W
30
WSW
25
WNW
25
WNW
20
SSW
20
SE
20
S
15
NW
5
W
10
W
10
SSE
25
S
30
S
5
SSE
20
NW
35
NW
35
NW
20
NW
30
NW
10
NW
5
S
10
SSW
10
SSE
5
SSW
10
SW
10
S
25
SSE
20
SW
25
WSW
20
WNW
30
NW
 mm 
3
18
5
2.0
1.0
6
1.0
12
4
7
3
max°C
12
13
12
11
12
11
10
9
10
9
8
9
11
11
11
10
12
13
11
10
11
9
9
11
9
10
10
9
10
11
10
10
12
12
11
12
Moonrise
3:53
4:58
6:00
7:00
7:58
8:57
9:55
10:55
11:56
12:58
1:58
2:55
Moonset
5:52
6:23
6:49
7:12
7:34
7:55
8:16
8:40
9:06
9:37
10:15
11:01
11:55
Sunrise
7:26
7:24
7:24
7:22
7:20
7:20
7:18
7:16
7:15
7:13
7:11
7:11
Sunset
7:13
7:14
7:14
7:15
7:15
7:16
7:17
7:19
7:20
7:21
7:22
7:22
Today's sea temperature in Half Moon Bay is 12.0 °C (Statistics for 10 Mar 1981-2005 – mean: 12.3 max: 14.2 min: 10.7°C)
Issued (local time): 10 pm Monday 10 Mar 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest