Surf Break

Lat Long: 46.91° N 124.12° W

Half Moon Bay Surf Forecast and Surf Report

Issued: 4 pm 02 Oct 2026 (local time)

Forecast update in  hr  min

Today's Half Moon Bay sea temperature is
14.5°C
0.6° 

Half Moon Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Half Moon Bay surf forecast from 3 Oct 2026:

  • Best quality surf: Saturday 3 Oct, 5AM (local time) - 3.5ft (1.0m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Wednesday 7 Oct, 11PM (local time) - 5ft (1.5m), 14s period, WNW swell with 886 kJ wave energy.
  • Next surfable swell (1★+): Saturday 3 Oct, 5AM (local time) - 3.5ft (1.0m), 9s period with W 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 Saturday (Oct 03) at 5AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.5m and 16s. 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 1.5m 14s and forecast to arrive on Wednesday (Oct 07) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 3rd Oct)3.5ft (1.0m) 9s
Best Surf 5AM (Sat 3rd Oct)3.5ft (1.0m) 9s
Most Powerful11PM (Wed 7th Oct)5ft (1.5m) 14s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Sat afternoon, min 13°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Mon afternoon, min 11°C on Wed morning). Wind will be generally light.

Fri
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
Thursday
8
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
0
0
0
0
0
0
0
0
1
0
0
1
0
1
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
17
1.1
W
9
0.5
SW
16
0.6
SW
16
0.5
SW
16
0.5
SW
15
0.6
SW
15
0.5
SW
16
1.1
W
11
1.1
W
11
1
W
11
1
W
10
0.8
W
10
1
W
10
1.1
WNW
10
1.2
WNW
10
1.5
WNW
14
1.4
WNW
13
1.3
WNW
12
1.2
WNW
12
Wave Graph
Metric surfscale
Energy kJ
145
181
127
208
124
107
139
119
282
279
220
198
123
206
250
258
769
648
528
425
Wind (km/h)
5
WSW
10
NE
15
NE
20
NNW
10
NNE
10
NNE
20
NW
15
NNW
15
NNW
20
NW
15
NNW
10
N
20
NNW
15
N
10
NNE
20
NNW
10
NNE
10
NNE
15
NW
5
NW
Wind State
cross-on
cross
cross
on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
on
High Tide
5:11PM2.74m
7:16AM2.02m
6:24PM2.59m
8:33AM2.07m
7:49PM2.50m
9:41AM2.21m
9:09PM2.50m
10:35AM2.40m
10:19PM2.56m
11:19AM2.59m
11:19PM2.61m
11:58AM2.76m
00:12AM2.64m
Low Tide
00:13AM0.03m
12:08PM1.30m
1:27AM0.12m
1:38PM1.29m
2:42AM0.14m
3:02PM1.11m
3:46AM0.10m
4:11PM0.83m
4:40AM0.08m
5:07PM0.52m
5:25AM0.10m
5:55PM0.24m
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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7:16
—
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7:18
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7:20
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7:20
—
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7:22
—
—
7:24
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
—
—
6:52
—
—
6:50
—
—
6:47
—
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6:46
—
—
6:45
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6:43
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
16
15
16
19
15
16
18
14
15
16
14
13
15
13
14
15
14
16
17
14
Feels °C
15
16
14
17
13
14
16
12
13
14
12
11
12
9
12
11
11
14
14
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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