Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 10 pm Friday 29 May 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
12.7° C
(Which is normal for this time of year)

Half Moon Bay surf forecast from 30 May 2026:

  • Best quality surf: Wednesday 3 Jun, 8AM (local time) - 4ft (1.2m), 12s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Friday 5 Jun, 11AM (local time) - 3.5ft (1.1m), 19s period, SW swell with 808 kJ wave energy.
  • Next surfable swell (1★+): Monday 1 Jun, 8AM (local time) - 2ft (0.6m), 20s period with SW 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 Monday (Jun 01) at 8AM. The primary swell is predicted to be 0.6m and 20s period with a secondary swell of 1.0m and 9s. 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 1.1m 19s and forecast to arrive on Friday (Jun 05) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Friday (Jun 05) at 11PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 1st Jun)2ft (0.6m) 20s
Best Surf 8AM (Wed 3rd Jun)4ft (1.2m) 12s
Most Powerful11AM (Fri 5th Jun)3.5ft (1.1m) 19s

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 17°C on Mon afternoon, min 8°C on Sun morning). Winds decreasing (fresh winds from the NW on Fri night, light winds from the NNE by Sun night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 15°C on Tue morning, min 12°C on Mon night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Fri
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
1
0
2
2
0
1
2
1
3
2
0
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
WNW
12
1.4
WNW
12
1.5
W
11
1.6
WNW
11
1.4
WNW
11
1
W
10
1.3
WNW
10
0.6
SW
20
0.7
SW
19
0.8
SW
18
0.8
SW
18
0.8
SW
18
1.1
W
12
1.2
WSW
11
1.2
WSW
11
1.6
WSW
10
1.2
WSW
10
1.3
WSW
9
1.3
W
12
1.1
SW
19
0.8
SW
19
Wave Graph
Metric surfscale
Energy kJ
820
560
586
572
408
200
312
239
369
383
375
366
350
376
357
523
271
302
472
808
432
Wind (km/h)
20
NNW
20
NW
25
NW
25
NNW
20
NNW
25
NW
15
N
10
NW
20
NW
5
NNE
5
WNW
15
WNW
10
WSW
15
WSW
15
W
5
WSW
10
W
15
WNW
5
N
10
SSW
15
SSW
on
on
on
on
on
on
cross-on
on
on
glassy
glassy
on
cross-on
cross
cross-on
glassy
cross-on
on
glassy
cross-off
cross-off
High Tide
00:14AM2.79m
1:42PM2.21m
00:50AM2.79m
2:22PM2.23m
1:25AM2.76m
3:01PM2.23m
2:00AM2.72m
3:39PM2.21m
2:36AM2.65m
4:19PM2.17m
3:12AM2.55m
4:59PM2.14m
3:50AM2.43m
5:41PM2.12m
Low Tide
6:55AM-0.23m
6:43PM1.05m
7:32AM-0.26m
7:22PM1.11m
8:09AM-0.25m
8:01PM1.15m
8:46AM-0.22m
8:39PM1.17m
9:24AM-0.17m
9:18PM1.18m
10:01AM-0.11m
10:01PM1.18m
10:40AM-0.04m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:24
5:24
5:24
5:24
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:00
9:00
9:01
9:02
9:04
9:04
9:05
9:06
Temp °C
11
11
11
10
11
11
10
15
17
14
15
15
14
13
13
12
13
13
12
13
14
4
6
6
4
6
5
4
12
12
9
14
11
12
11
10
9
11
9
10
11
11
Swell 1
Height (m)
Direction
Period (s)
1.7
WNW
12
1.4
WNW
12
0.4
SW
14
1.6
WNW
11
1.4
WNW
11
1
W
10
1.3
WNW
10
1
WNW
9
0.7
SW
19
0.9
WNW
8
0.8
SW
18
0.8
SW
18
1.1
W
12
1.2
WSW
11
1.2
WSW
11
1.6
WSW
10
1.2
WSW
10
1.3
WSW
9
1.3
W
12
1.2
W
11
1.2
W
11
Energy kJ
820
560
74
572
408
200
312
169
369
119
375
366
350
376
343
523
271
302
472
338
326
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
14
0.4
SW
15
0.1
SW
25
0.3
SW
14
0.3
SW
14
0.4
SW
21
0.6
SW
21
0.6
SW
20
0.2
SSW
13
0.8
SW
18
0.7
WNW
9
0.7
WNW
9
0.8
SW
16
0.8
SW
16
0.8
SW
16
0.7
SW
16
0.7
SW
15
0.6
SW
14
0.7
SW
18
1.1
SW
19
0.8
SW
19
Energy kJ
30
58
24
31
30
162
271
239
16
383
77
79
318
310
357
239
212
132
325
808
432
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
W
25
0.1
SW
25
0.2
WSW
24
0.3
SW
22
0.3
SW
14
0.3
SW
13
0.3
SW
16
0.1
SW
12
0.1
SW
12
0.4
WSW
14
0.1
SW
22
0.4
SW
20
0.6
SW
20
0.6
SW
18
0.6
SW
15
0.2
WSW
8
0.6
SW
16
Energy kJ
10
12
24
54
76
29
27
41
6
6
65
18
134
248
201
171
7
203
Wind waves
Height (m)
Direction
Period (s)
1.4
WNW
7
1.5
W
11
1
NW
5
1.3
NW
6
1.1
WNW
9
0.5
SW
3
Energy kJ
202
586
48
114
176
5
Nearest Offshore or Glassy
Rating
(10 max)
4
2
1
1
1
1
2
2
1
2
2
2
3
3
3
3
1
1
3
3
3
Distance (km)
218
1008
964
141
166
964
52
4
166
0
0
52
0
0
259
0
178
964
0
0
0
Best forecast wave conditions in Washington State
Rating
(10 max)
1
3
2
3
3
2
3
3
3
1
4
4
3
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
4
4
3
4
4
3
4
3
3
4
3
3
3
4
3
4
4
3
Header Global
Rating
(10 max)
5
7
7
6
5
5
4
4
5
6
4
6
5
5
4
4
9
5
5
9
8
  • 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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