Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 10 am Friday 03 Apr 2026 PDT
Forecast 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
9.8° C
(Which is normal for this time of year)

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 Monday (Apr 06) at 2AM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.3m and 15s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Half Moon Bay in the next 16 days are 1.3m 12s and forecast to arrive on Sunday (Apr 05) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Apr 05) at 8AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 6th Apr)3.5ft (1.0m) 11s
Best Surf 2AM (Mon 6th Apr)3.5ft (1.0m) 11s
Most Powerful 5AM (Sun 5th Apr)4.5ft (1.3m) 12s

Table - best surf conditions forecast for Half Moon Bay over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 18°C on Sun afternoon, min 8°C on Fri morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 11°C on Mon morning, min 6°C on Mon night). Winds decreasing (fresh winds from the NW on Mon night, calm by Wed morning).

Friday
03
Saturday
04
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
1
1
0
0
1
1
0
2
0
0
0
0
0
0
2
0
1
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.4
W
1.2
W
1.4
W
1.2
W
1.1
W
1.1
W
1.3
W
1.2
W
1
W
0.9
WNW
0.7
W
1.4
WNW
1.7
WNW
1.4
WNW
1.5
WNW
1.4
WNW
1.3
WNW
1.3
WNW
1.2
WNW
1.4
WNW
1.6
WNW
Period(s) (?)1099991012111110106888989999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)38424631822518922644935823316394136390245321304239255227281415
Wind
(km/h)
15
S
10
WNW
10
NNE
10
NNE
20
NNW
20
ENE
20
ENE
15
N
5
NE
10
W
25
NW
30
NW
25
NW
30
NW
10
NNW
0
ESE
20
NW
10
NNE
10
NNW
25
NW
20
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
crosscrosscross-
on
cross-
off
cross-
off
cross-
on
cross-
off
cross-
on
onononononglassoncrossononon
High Tide
/ height (m)
2:45PM
2.54
2:33AM
2.90
3:25PM
2.44
3:01AM
2.85
4:06PM
2.32
3:30AM
2.77
4:49PM
2.19
4:01AM
2.66
5:38PM
2.05
4:37AM
2.54
6:37PM
1.93
5:26AM
2.40
7:47PM
1.88
Low Tide
/ height (m)
8:18AM
-0.03
8:17PM
0.63
8:54AM
-0.04
8:50PM
0.82
9:30AM
0.02
9:22PM
1.00
10:09AM
0.13
9:54PM
1.17
10:51AM
0.27
10:29PM
1.32
11:41AM
0.41
11:16PM
1.44
12:43PM
0.50
12:37AM
1.50
Friday
03
Saturday
04
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Sunrise6:52--6:50--6:48--6:46--6:43--6:41--6:39--
Sunset-7:47--7:49--7:50--7:52--7:52--7:53--7:55-
cloud
cloud
clear
clear
clear
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C999101312121816111088888989108
Feels °C (?)566797715131062111642653
  • Map Icons:
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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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Quick surf report for Half Moon Bay:

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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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