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 06:54 AM and sunset is at 07:31 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Cool air temperatures (max 19°C on Fri afternoon, min 10°C on Wed night). Winds decreasing (fresh winds from the NW on Thu afternoon, light winds from the ENE by Fri night).

Days 4–6 Weather Summary

Some drizzle, heaviest during Mon night. Warm air temperatures (max 23°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Tue morning. Very mild (max 14°C on Tue morning, min 9°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 15°C on Sun morning, min 9°C on Fri morning). Wind will be generally light.

Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thu
16
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
PM
Wave Height Map
High Tide
11:06AM1.48m
11:15PM1.67m
11:53AM1.40m
11:40PM1.67m
12:40PM1.32m
00:04AM1.65m
1:29PM1.23m
00:31AM1.62m
2:21PM1.16m
1:02AM1.57m
3:23PM1.09m
1:39AM1.51m
4:40PM1.06m
2:26AM1.44m
6:07PM1.08m
7:11PM1.12m
7:51PM1.19m
5:46AM1.32m
8:20PM1.26m
6:55AM1.34m
8:45PM1.34m
7:59AM1.37m
9:09PM1.44m
8:57AM1.41m
9:35PM1.55m
9:53AM1.43m
Low Tide
4:59PM0.29m
5:37AM0.06m
5:31PM0.43m
6:14AM-0.01m
6:03PM0.57m
6:51AM-0.04m
6:36PM0.71m
7:30AM-0.03m
7:10PM0.83m
8:13AM-0.00m
7:48PM0.94m
9:02AM0.05m
8:40PM1.02m
10:00AM0.10m
10:02PM1.06m
11:06AM0.12m
11:37PM1.04m
12:10PM0.12m
00:49AM0.95m
1:05PM0.11m
1:43AM0.81m
1:52PM0.10m
2:28AM0.64m
2:32PM0.12m
3:08AM0.43m
3:10PM0.16m
3:48AM0.21m
3:47PM0.24m
Wave
height (m) 
direction
period (s) 
0.6
WSW
13
0.7
WSW
13
1
W
13
1.4
WNW
11
1.9
WNW
11
1.9
W
12
1.4
WNW
11
1.3
WNW
11
1.2
WNW
10
1
W
10
0.9
WNW
10
0.9
SSW
18
0.9
SSW
17
0.9
SSW
16
1
SSW
16
1
SSW
15
1
SSW
15
0.9
SSW
14
0.9
SSW
14
1
SSW
14
1.1
SW
14
1.1
SW
13
1.2
SW
13
1.5
WNW
8
1.3
W
16
1.2
W
16
1.1
W
15
1.1
W
14
1.1
W
14
1.3
W
13
1.3
W
12
1.2
SW
16
1.4
SW
16
1.2
WSW
14
1.2
W
13
1.3
W
12
1.2
SW
14
1.3
W
11
1.6
WNW
8
1.9
WNW
8
2
WNW
8
2
WNW
8
1.8
WNW
8
1.8
WNW
8
2
WNW
8
1.6
W
12
1.4
W
13
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
rain showers
rain showers
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
clear
clear
rain shwrs
rain shwrs
clear
some clouds
clear
clear
some clouds
some clouds
clear
some clouds
some clouds
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
 km/h
20
SSW
20
WSW
25
NW
30
NW
40
NW
10
N
15
NNE
25
NW
5
ENE
10
NE
10
W
0
E
10
SSW
10
SW
15
S
15
SSW
10
SSW
15
S
10
SW
15
WSW
5
SSE
15
WNW
25
NW
10
WNW
10
SW
15
WNW
5
WNW
10
WSW
15
WNW
10
W
5
SW
15
NW
5
WNW
10
WSW
15
WNW
10
WNW
10
WNW
20
NW
15
WNW
10
NW
30
NW
25
NW
15
WNW
25
NW
25
NW
25
NW
20
WNW
 mm 
2
1
2
max°C
14
14
13
11
12
11
15
19
15
19
23
16
16
15
13
13
14
14
14
14
13
13
14
10
13
13
10
12
12
10
14
14
11
15
15
11
15
15
10
13
15
12
12
13
11
13
13
Moonrise
7:33
8:35
9:38
10:40
11:41
12:39
1:33
2:20
3:01
3:36
4:07
4:34
5:00
5:25
5:52
Moonset
6:33
6:56
7:21
7:49
8:22
9:00
9:45
10:37
11:34
12:36
1:40
2:45
3:51
4:58
6:07
7:19
Sunrise
6:54
6:54
6:52
6:50
6:50
6:48
6:47
6:45
6:43
6:41
6:41
6:39
6:37
6:37
6:35
6:33
Sunset
7:31
7:32
7:34
7:35
7:36
7:36
7:37
7:37
7:38
7:39
7:40
7:42
7:43
7:44
7:45
7:45
Today's sea temperature in Half Moon Bay is
14.2° C
(Statistics for 01 Apr 1981-2005 – mean: 12.0 max: 14.0 min: 10.3°C)
Issued (local time): 4 am Wednesday 01 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest