Surf Forecasts:
Half Moon Bay surf forecast from 9 Nov 2026:
- Best quality surf: Tuesday 10 Nov, 10AM (local time) - 11ft (3.5m), 15s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 14 Nov, 4AM (local time) - 21ft (6.5m), 19s period, WSW swell with 29,503 kJ wave energy.
- Next surfable swell (1★+): Tuesday 10 Nov, 1AM (local time) - 10ft (3.0m), 13s period with WSW swell.
Best Forecast Surf Conditions for Half Moon Bay this week:
The surf forecast for Half Moon Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 10) at 1AM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 1.5m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Half Moon Bay in the next 16 days are 6.5m 19s and forecast to arrive on Saturday (Nov 14) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Tuesday (Nov 17) at 7PM.
| Wave Type | Time (PST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 10th Nov) | 10ft (3.0m) 13s |
| Best Surf | 10AM (Tue 10th Nov) | 11ft (3.5m) 15s |
| Most Powerful | 4AM (Sat 14th Nov) | 21ft (6.5m) 19s |
Table - best surf conditions forecast for Half Moon Bay over the next 16 days.
Short Range ForecastHeavy rain (total 60mm), heaviest during Tue morning. Very mild (max 16°C on Wed morning, min 11°C on Mon night). Winds increasing (light winds from the SW on Mon afternoon, strong winds from the S by Tue afternoon). | Days 5-7 Weather SummaryHeavy rain (total 77mm), heaviest during Fri morning. Very mild (max 15°C on Thu afternoon, min 11°C on Fri morning). Mainly near gales. | |||||||||||||||||||
Mon 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WSW 11 | WSW 13 | WSW 15 | WSW 14 | SW 12 | WSW 12 | SW 12 | WSW 15 | WSW 14 | WSW 14 | W 15 | SW 11 | WSW 13 | WSW 21 | WSW 18 | WSW 16 | W 14 | SW 13 | WSW 18 | WSW 17 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1204 | 2801 | 5292 | 4188 | 4025 | 4661 | 5457 | 7176 | 5165 | 4004 | 3282 | 1576 | 2653 | 29397 | 18525 | 11486 | 3022 | 8125 | 27453 | 27783 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 1:22AM2.50m | 12:37PM2.99m | 2:03AM2.47m | 1:09PM2.92m | 2:43AM2.41m | 1:42PM2.83m | 3:25AM2.34m | 2:17PM2.72m | 4:09AM2.26m | 2:56PM2.58m | 4:57AM2.21m | 3:41PM2.41m | ||||||||
Low Tide | 6:37PM-0.21m | 6:30AM1.09m | 7:14PM-0.17m | 7:08AM1.21m | 7:51PM-0.09m | 7:46AM1.30m | 8:30PM0.02m | 8:25AM1.38m | 9:10PM0.14m | 9:07AM1.44m | 9:53PM0.26m | 9:59AM1.48m | 10:40PM0.38m | |||||||
 |  |  | |  |  | |  |  | | | |  | | | |  | |  | | |
 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — |
 | 4:49 | — | — | 4:47 | — | — | 4:46 | — | — | 4:45 | — | — | 4:44 | — | — | 4:43 | — | — | 4:42 | — |
mm | 6 | 7 | 21 | 13 | 7 | 3 | 2 | 1 | — | — | 9 | 24 | 10 | 5 | 2 | 1 | 19 | 7 | 3 | 6 |
Temp °C | 13 | 12 | 13 | 15 | 15 | 16 | 15 | 15 | 15 | 15 | 14 | 12 | 12 | 12 | 11 | 12 | 11 | 13 | 12 | 11 |
Feels °C | 11 | 9 | 8 | 6 | 7 | 9 | 8 | 13 | 13 | 12 | 3 | 4 | 5 | 7 | 4 | 6 | 4 | 3 | 3 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 13 | WSW 15 | WSW 14 | SW 12 | WSW 12 | — | WSW 15 | WSW 14 | WSW 14 | W 15 | SW 11 | WSW 13 | WSW 21 | WSW 18 | WSW 16 | W 14 | SW 13 | — | WSW 17 |
| kJ | 1204 | 2801 | 5292 | 4188 | 4025 | 4661 | — | 7176 | 5165 | 4004 | 3282 | 1576 | 2653 | 29397 | 18525 | 11486 | 3022 | 6945 | — | 27783 |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | — | — | — | — | — | SSW 10 | — | — | — | W 15 | W 19 | — | — | — | SSW 10 | — | — | — |
| kJ | 89 | — | — | — | — | — | — | 741 | — | — | — | 1373 | 186 | — | — | — | 1116 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 18 | SSW 18 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 49 | 31 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 8 | S 7 | SSW 7 | — | — | SW 12 | — | — | — | SE 4 | SE 4 | SSW 10 | SSW 10 | — | — | ESE 4 | SW 13 | WSW 18 | — |
| kJ | — | 246 | 377 | 710 | — | — | 5457 | — | — | — | 12 | 21 | 961 | 1390 | — | — | 12 | 8125 | 27453 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 149 | 0 | 143 | 141 | 160 | 160 | 160 | 1 | 1 | 1 | 141 | 141 | 166 | 141 | 141 | 141 | 141 | 151 | 151 | 1 |
Best forecast wave conditions in Washington State | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 16 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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