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 04:51 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 16°C on Sat morning, min 11°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 15°C on Tue morning, min 12°C on Sun afternoon). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Very mild (max 19°C on Fri morning, min 12°C on Wed night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 19°C on Sat afternoon, min 12°C on Mon night). Wind will be generally light.

Thu
4
Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tue
16
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
11:10PM1.41m
9:34AM2.10m
00:04AM1.43m
10:23AM2.05m
00:57AM1.44m
11:14AM1.96m
1:50AM1.44m
12:09PM1.81m
2:42AM1.47m
1:08PM1.63m
3:32AM1.50m
2:13PM1.44m
4:20AM1.55m
3:28PM1.26m
5:03AM1.60m
4:54PM1.13m
5:42AM1.64m
6:23PM1.08m
6:18AM1.68m
7:43PM1.10m
8:49PM1.16m
7:23AM1.73m
Low Tide
4:04PM-0.55m
3:39AM0.89m
4:53PM-0.58m
4:33AM0.93m
5:42PM-0.54m
5:30AM0.95m
6:34PM-0.44m
6:33AM0.95m
7:26PM-0.29m
7:44AM0.93m
8:19PM-0.12m
9:03AM0.85m
9:11PM0.06m
10:21AM0.73m
10:04PM0.24m
11:31AM0.57m
10:55PM0.42m
12:32PM0.39m
11:45PM0.59m
1:22PM0.22m
00:34AM0.73m
2:06PM0.07m
1:21AM0.85m
Wave
height (m) 
direction
period (s) 
0.9
W
12
0.8
W
12
0.9
W
12
1
W
11
1
W
11
1.1
W
10
1
W
14
1.3
W
13
1.2
W
12
1.1
W
12
1.1
W
11
0.9
W
12
0.9
WSW
12
1.1
WSW
12
1.2
W
12
1.5
W
12
1.8
W
14
1.9
W
14
1.8
W
13
1.8
W
14
1.9
W
13
1.7
W
13
1.6
W
12
1.3
W
12
1.2
W
12
1.1
W
12
0.9
W
12
0.9
W
12
0.9
W
12
0.9
W
11
0.8
W
11
0.9
W
11
0.8
W
11
0.8
W
10
0.7
W
10
0.6
W
10
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
clear
clear
clear
some clouds
some clouds
 km/h
10
NNE
5
NNE
5
NNE
10
NNW
5
WNW
10
N
15
NNW
5
NE
10
N
20
NW
5
N
5
N
15
NNW
10
NNW
10
NNW
25
NW
15
NW
20
NNW
25
NW
20
NNW
10
N
15
NNW
5
NNE
5
NNE
15
N
10
ENE
10
ENE
5
NNE
10
NE
10
ENE
5
NE
5
ENE
5
E
5
S
5
SE
5
NE
 mm 
max°C
13
12
15
14
12
16
14
14
16
13
13
14
12
13
15
13
13
15
14
13
16
15
15
19
19
17
18
19
17
18
18
16
16
15
13
15
Moonrise
4:28
5:32
6:44
7:59
9:12
10:21
11:26
12:27
1:27
2:26
3:25
4:26
Moonset
8:19
9:23
10:15
10:55
11:27
11:54
12:18
12:40
1:02
1:25
1:51
2:21
Sunrise
7:09
7:09
7:11
7:11
7:11
7:13
7:13
7:15
7:15
7:16
7:16
7:18
Sunset
4:51
4:51
4:51
4:51
4:51
4:51
4:51
4:52
4:52
4:52
4:52
4:52
Today's sea temperature in Half Moon Bay is
13.8° C
(Statistics for 04 Dec 1981-2005 – mean: 13.0 max: 15.5 min: 12.0°C)
Issued (local time): 3 pm Thursday 04 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest