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Half Moon Bay Surf Forecast
/ Washington (29 breaks) / Washington (29 breaks) /
Surf Forecasts:
Half Moon Bay surfForecast / Washington / USA
12 Day Weather and Surf, issued 3 pm Tuesday 02 Dec 2025 PSTForecast update in hr min s Forecast update imminent
Half Moon Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Half Moon Bay sea temperature is
11.1° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Half Moon Bay this week:
The surf forecast for Half Moon Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 02) at 10PM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 0.9m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Half Moon Bay in the next 12 days are 3.0m 12s and forecast to arrive on Tuesday (Dec 09) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Monday (Dec 08) at 4PM.
| Wave Type | Time (PST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 2nd Dec) | 7ft (2.2m) 15s |
| Best Surf | 10PM (Tue 2nd Dec) | 7ft (2.2m) 15s |
| Most Powerful | 7AM (Tue 9th Dec) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Half Moon Bay over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 31mm), heaviest during Fri morning. Very mild (max 11°C on Thu afternoon, min 6°C on Tue night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Sun morning. Very mild (max 12°C on Sun morning, min 9°C on Sat night). Winds increasing (light winds from the SW on Sat afternoon, strong winds from the SW by Sun morning). | ||||||||||||||||||||||
Tue 02 | Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 14 | 13 | 13 | 12 | 13 | 12 | 11 | 7 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 9 | 12 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 1959 | 1712 | 1067 | 757 | 463 | 420 | 643 | 827 | 878 | 340 | 368 | 1308 | 1227 | 686 | 452 | 573 | 795 | 1087 | 1066 | 1611 | 2426 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | glass | glass | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross | cross- off | off | cross | cross- on | on | off | cross- off | cross- on | cross- on | ||
High Tide / height (m) | 11:06PM 2.41 | 10:33AM 3.31 | 12:03AM 2.54 | 11:21AM 3.42 | 12:57AM 2.63 | 12:09PM 3.45 | 1:48AM 2.67 | 12:59PM 3.41 | 2:38AM 2.68 | 1:50PM 3.28 | 3:28AM 2.65 | 2:41PM 3.08 | 4:18AM 2.62 | ||||||||||
Low Tide / height (m) | 4:28PM -0.23 | 4:14AM 0.94 | 5:18PM -0.48 | 5:06AM 1.01 | 6:07PM -0.63 | 5:58AM 1.07 | 6:56PM -0.67 | 6:49AM 1.10 | 7:44PM -0.61 | 7:42AM 1.12 | 8:33PM -0.47 | 8:36AM 1.14 | 9:22PM -0.27 | 9:35AM 1.16 | |||||||||
Tue 02 | Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | |||||||||||||||||
| Sunrise | - | - | 7:43 | - | - | 7:43 | - | - | 7:45 | - | - | 7:46 | - | - | 7:47 | - | - | 7:48 | - | - | 7:48 | ||
| Sunset | 4:29 | - | - | 4:29 | - | - | 4:28 | - | - | 4:28 | - | - | 4:28 | - | - | 4:27 | - | - | 4:27 | - | - | ||
 |  |  | |  |  | |  | |  | | | | | |  | | |  | | | |||
Rain (mm) | - | - | - | - | 1 | 6 | 8 | 7 | 9 | 1 | 1 | 4 | 2 | 3 | 8 | 1 | - | - | 22 | 10 | - | ||
| Temp. °C | 9 | 7 | 7 | 7 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 12 | 12 | 10 | 10 | 12 | 12 | 11 | ||
| Feels °C (?) | 6 | 3 | 5 | 6 | 6 | 5 | 9 | 8 | 7 | 7 | 6 | 7 | 9 | 8 | 5 | 10 | 7 | 4 | 3 | 5 | 6 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Half Moon Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Half Moon Bay Surf forecast
The above surf forecast table for Half Moon Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Half Moon Bay can be found by selecting the local surf guide option on the grey menu. Our Half Moon Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Half Moon Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Half Moon Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a vacation in Washington State? If you are looking for accommodation near Half Moon Bay, camping, hotels and condos and appartments in Washington State, consider staying in Aberdeen which is 25 km (16 miles) away. Other places in and around Washington State where you can find information about places to rent, and car hire include Astoria which is 83 km (52 miles) away, Centralia and Olympia.
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