Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 4 pm Sunday 26 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
12.0° C
(Which is 1.3°C warmer than 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 Wednesday (Apr 29) at 2AM. The primary swell is predicted to be 0.8m and 17s period with a secondary swell of 1.1m 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 16 days are 1.8m 14s and forecast to arrive on Sunday (May 03) at 5PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 29th Apr)2.5ft (0.8m) 17s
Best Surf 5AM (Wed 29th Apr)3.5ft (1.0m) 16s
Most Powerful 5PM (Sun 3rd May)6ft (1.8m) 14s

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 11°C on Sun afternoon, min 8°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 12°C on Wed afternoon, min 9°C on Fri night). Winds decreasing (fresh winds from the NW on Thu afternoon, light winds from the N by Sat morning).

Sun
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
1
0
0
0
0
2
3
0
2
0
0
0
0
0
0
1
0
2
3
Swell
Height Map
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.5
WNW
13
1.6
WNW
10
1.4
WNW
10
1.6
WNW
9
1.5
WNW
9
1.2
WNW
8
1.2
WNW
8
0.8
W
17
1.1
W
15
1.5
W
14
1.3
WNW
13
1.1
W
13
1.2
W
13
1.1
W
13
1.2
W
12
1.2
W
12
1.1
W
12
0.8
W
11
1.3
WNW
8
0.9
W
17
1.5
W
15
Wave Graph
Metric surfscale
Energy kJ
713
520
351
406
320
176
163
355
530
925
599
414
475
414
439
416
339
160
191
464
1010
Wind (km/h)
15
WNW
15
WSW
10
SW
15
W
15
WNW
15
W
15
W
5
ENE
0
WSW
20
NW
10
N
20
NW
30
NW
25
NW
20
NW
25
NW
20
NNW
5
WNW
25
NW
5
NNE
5
NE
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-off
glassy
on
cross-on
on
on
on
on
on
on
cross-on
on
cross-on
glassy
High Tide
10:29PM2.51m
10:35AM2.30m
11:10PM2.65m
11:32AM2.33m
11:46PM2.76m
12:23PM2.35m
00:20AM2.83m
1:09PM2.37m
00:52AM2.87m
1:52PM2.38m
1:24AM2.86m
2:33PM2.37m
1:54AM2.83m
Low Tide
3:45PM0.27m
4:29AM0.59m
4:34PM0.33m
5:19AM0.32m
5:18PM0.42m
6:02AM0.09m
5:57PM0.54m
6:40AM-0.07m
6:35PM0.67m
7:17AM-0.17m
7:11PM0.80m
7:53AM-0.21m
7:47PM0.94m
8:29AM-0.19m
clear
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:03
6:03
6:01
6:00
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:20
8:22
8:22
8:24
8:25
8:27
8:29
Temp °C
11
10
10
10
10
10
10
10
11
12
11
11
11
10
11
11
10
10
12
11
17
7
7
7
6
7
6
6
7
10
8
8
7
5
4
7
6
4
8
7
6
16
Swell 1
Height (m)
Direction
Period (s)
1.5
WNW
13
1.6
WNW
10
1.4
WNW
10
1.6
WNW
9
0.4
W
12
1.2
WNW
8
1.2
WNW
8
1.1
WNW
7
1.1
W
15
1.5
W
14
1.3
WNW
13
1.1
W
13
1.2
W
13
1.1
W
13
1.2
W
12
1.2
W
12
1.1
W
12
0.8
W
11
1.3
WNW
8
1.5
WNW
8
1.5
W
15
Energy kJ
713
520
351
406
47
176
163
118
530
925
599
414
475
414
439
416
339
160
191
280
1010
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
13
0.2
WSW
13
0.7
W
12
0.2
WSW
15
0.3
SW
15
0.7
W
11
0.7
W
11
0.8
W
17
1.1
WNW
8
0.4
SW
16
0.2
WSW
16
0.2
WSW
15
0.3
SW
15
0.4
SW
14
0.2
WSW
14
0.2
WSW
13
0.3
SW
13
0.2
WSW
13
0.7
WNW
11
0.9
W
17
1.2
WNW
8
Energy kJ
7
17
144
21
34
127
114
355
153
64
24
21
34
54
20
18
27
17
119
464
181
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
13
0.2
WSW
16
0.2
WSW
15
0.1
S
12
0.1
SW
12
0.2
WSW
16
0.4
W
19
0.7
W
10
0.2
WSW
13
0.1
SW
11
0.2
WSW
12
0.2
WSW
12
0.2
WSW
12
0.1
SW
19
0.1
SW
11
0.1
SW
11
0.1
SW
16
0.2
W
21
0.5
W
19
0.2
WSW
13
0.1
SW
12
Energy kJ
7
26
21
3
6
25
118
106
17
5
15
15
15
14
5
5
10
34
184
17
6
Wind waves
Height (m)
Direction
Period (s)
0.4
W
3
1.5
WNW
9
0.7
NW
6
0.9
WNW
5
1.1
NW
6
1.2
WNW
6
1.1
NW
7
0.9
NW
6
0.9
NW
4
1.2
WNW
7
Energy kJ
3
320
33
51
80
103
103
56
29
157
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
1
1
1
2
3
2
2
2
2
1
1
3
1
2
1
2
3
Distance (km)
160
0
0
149
141
160
141
0
0
143
4
160
1120
141
144
1120
141
70
149
4
0
Best forecast wave conditions in Washington State
Rating
(10 max)
2
2
2
1
1
1
1
3
3
2
3
2
2
2
1
2
1
3
4
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
2
2
1
2
3
3
3
3
3
2
4
3
4
4
3
3
4
4
Header Global
Rating
(10 max)
8
6
6
5
5
9
7
5
7
6
5
5
7
6
5
4
4
4
4
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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