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 06:56 AM and sunset is at 04:53 PM.
Days 1–3 Weather SummaryHeavy rain (total 46mm), heaviest during Fri afternoon. Cool air temperatures (max 15°C on Thu afternoon, min 10°C on Sat night). Winds decreasing (strong winds from the SSE on Thu morning, calm by Sat night). | Days 4–6 Weather SummaryModerate rain (total 15mm), heaviest on Sun night. Cool air temperatures (max 13°C on Sun morning, min 10°C on Tue night). Wind will be generally light. | Days 7–9 Weather SummaryMostly dry. Very mild (max 14°C on Wed morning, min 8°C on Thu night). Wind will be generally light. | Days 10–12 Weather SummaryMostly dry. Very mild (max 16°C on Sun morning, min 10°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 1 | Monday 2 | |||||||||||||||||||||||||
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 | 1:53PM1.47m | 4:44AM1.42m | 3:02PM1.33m | 5:29AM1.47m | 4:19PM1.22m | 6:07AM1.51m | 5:39PM1.16m | 6:38AM1.57m | 6:53PM1.14m | 7:06AM1.62m | 7:59PM1.15m | 7:32AM1.67m | 8:56PM1.18m | 7:58AM1.71m | 9:47PM1.21m | 8:26AM1.74m | 10:34PM1.24m | 8:56AM1.76m | 11:19PM1.26m | 9:28AM1.77m | 00:03AM1.27m | 10:04AM1.77m | 00:48AM1.28m | |||||||||||||
Low Tide | 8:52AM1.01m | 9:17PM0.01m | 10:13AM0.93m | 10:14PM0.14m | 11:23AM0.79m | 11:07PM0.26m | 12:22PM0.62m | 11:54PM0.38m | 1:11PM0.45m | 00:37AM0.50m | 1:53PM0.27m | 1:16AM0.62m | 2:30PM0.12m | 1:54AM0.73m | 3:04PM-0.01m | 2:30AM0.83m | 3:37PM-0.12m | 3:05AM0.91m | 4:10PM-0.19m | 3:40AM0.98m | 4:45PM-0.24m | 4:16AM1.03m | 5:23PM-0.27m | 4:55AM1.07m | ||||||||||||
W 12 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | W 10 | W 10 | W 9 | WSW 8 | WSW 8 | W 8 | SW 14 | S 7 | W 9 | W 8 | W 15 | W 14 | SSW 20 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 14 | WSW 13 | WSW 20 | W 19 | W 17 | W 15 | W 14 | W 14 | |
 |  |  |  | |  |  |  | |  | |  | | |  | | |  | | | | | | | | | | | | | | | | | | | |
light rain | cloudy | light rain | heavy rain | heavy rain | rain shwrs | clear | some clouds | light rain | rain shwrs | light rain | mod rain | rain shwrs | rain shwrs | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
1.0 | — | 5 | 13 | 22 | 4 | — | — | 1.0 | 1.0 | 2.0 | 10 | 1.0 | 1.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 14 | 15 | 14 | 14 | 14 | 14 | 13 | 12 | 11 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 13 | 12 | 14 | 13 | 10 | 13 | 12 | 10 | 12 | 12 | 10 | 14 | 14 | 12 | 16 | 16 | 12 | 16 | 15 | 12 |
Moonrise | — | — | 10:48 | — | — | 11:49 | — | — | — | 12:49 | — | — | 1:46 | — | — | 2:43 | — | — | 3:41 | — | — | 4:41 | — | — | 5:43 | — | — | 6:46 | — | — | 7:49 | — | — | 8:50 | — | — |
Moonset | 12:27 | — | — | 12:55 | — | — | 1:18 | — | — | 1:40 | — | — | 2:01 | — | — | 2:21 | — | — | 2:44 | — | — | — | 3:09 | — | — | 3:39 | — | — | 4:15 | — | — | 4:59 | — | — | 5:52 | — |
 | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — |
 | — | 4:53 | — | — | 4:53 | — | — | 4:53 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:51 | — | — | 4:51 | — |
Today's sea temperature in Half Moon Bay is 12.0 °C (Statistics for 21 Nov 1981-2005 – mean: 13.3 max: 16.2 min: 11.5°C) | ||||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
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