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 07:20 AM and sunset is at 04:54 PM.

Days 1–3 Weather Summary

Heavy rain (total 26mm), heaviest during Mon night. Cool air temperatures (max 16°C on Sun morning, min 13°C on Sat morning). Winds decreasing (fresh winds from the SSE on Sat morning, calm by Sat night).

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Tue morning. Cool air temperatures (max 13°C on Tue morning, min 9°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Fri morning. Very mild (max 15°C on Sat morning, min 10°C on Sun night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 13°C on Mon morning, min 9°C on Tue night). Wind will be generally light.

Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
1
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
Wave Height Map
High Tide
2:20PM1.26m
4:19AM1.49m
3:33PM1.11m
4:55AM1.53m
5:02PM1.01m
5:29AM1.58m
6:38PM1.00m
6:02AM1.63m
7:59PM1.06m
9:01PM1.13m
7:13AM1.73m
9:50PM1.21m
7:51AM1.78m
10:32PM1.26m
8:30AM1.82m
11:10PM1.30m
9:10AM1.86m
11:47PM1.34m
9:51AM1.87m
00:20AM1.37m
10:34AM1.87m
00:55AM1.40m
Low Tide
9:27AM0.86m
9:12PM0.25m
10:37AM0.73m
9:59PM0.41m
11:41AM0.58m
10:47PM0.58m
12:35PM0.40m
11:37PM0.72m
1:22PM0.23m
00:27AM0.84m
2:03PM0.08m
1:16AM0.94m
2:41PM-0.05m
2:01AM1.00m
3:17PM-0.16m
2:43AM1.03m
3:53PM-0.24m
3:23AM1.04m
4:30PM-0.30m
4:04AM1.04m
5:08PM-0.34m
4:46AM1.00m
5:46PM-0.33m
5:34AM0.96m
Wave
height (m) 
direction
period (s) 
2.3
W
18
3
W
17
4
W
16
3
W
16
2.5
W
15
2.5
W
15
4
W
17
4
W
20
3
W
18
3
W
17
3
W
16
3
W
15
2.5
W
14
2.3
W
14
2
W
14
2.2
W
14
3
W
15
3
W
15
2.5
W
15
2.5
W
14
3
W
14
3
W
15
2.5
W
17
2.4
W
16
2.2
W
16
2
W
15
1.9
W
14
1.8
W
14
1.7
W
13
1.5
W
13
1.3
W
12
1.2
W
12
1.2
W
11
1.4
W
11
1.3
WNW
8
1.6
W
17
light rain
cloud
light rain
part cloud
cloud
light rain
cloud
part cloud
rain showers
rain showers
clear
clear
clear
part cloud
light rain
cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
part cloud
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
light rain
cloudy
light rain
some clouds
cloudy
light rain
cloudy
some clouds
rain shwrs
rain shwrs
clear
clear
clear
some clouds
light rain
cloudy
cloudy
light rain
light rain
cloudy
some clouds
some clouds
cloudy
some clouds
cloudy
light rain
some clouds
clear
clear
some clouds
cloudy
cloudy
clear
clear
clear
clear
 km/h
30
SSE
15
S
5
S
5
ESE
10
S
5
SSE
5
SSE
15
SSE
30
S
25
WNW
25
WNW
25
NW
10
NNW
15
NW
10
S
15
S
5
SSW
15
SSE
15
SSE
10
S
5
S
10
S
10
S
5
WSW
5
SW
10
SSW
15
NW
10
NNW
15
NNW
15
NE
15
NE
15
NNW
15
NNW
10
N
15
N
15
NNE
 mm 
1.0
1.0
1.0
23
2.0
1.0
2.0
1.0
1.0
max°C
14
14
14
16
16
15
16
16
15
13
11
11
10
10
11
12
12
13
13
13
13
15
14
15
15
14
13
13
13
12
13
13
10
12
12
11
Moonrise
11:36
12:33
1:31
2:30
3:30
4:33
5:37
6:39
7:36
8:27
9:09
Moonset
11:42
12:03
12:24
12:46
1:10
1:38
2:12
2:53
3:43
4:43
5:50
7:00
Sunrise
7:20
7:20
7:22
7:22
7:22
7:22
7:22
7:22
7:24
7:24
7:24
7:24
Sunset
4:54
4:55
4:57
4:57
4:58
4:58
4:59
5:00
5:00
5:00
5:00
5:01
Today's sea temperature in Half Moon Bay is 12.3 °C (Statistics for 21 Dec 1981-2005 – mean: 12.4 max: 14.8 min: 10.8°C)
Issued (local time): 9 am Saturday 21 Dec 2024
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest