Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 10 am Sunday 31 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
13.1° C
(Which is normal for this time of year)

Half Moon Bay surf forecast from 31 May 2026:

  • Best quality surf: Saturday 6 Jun, 8AM (local time) - 7ft (2.1m), 10s period, W swell with cross-offshore winds.
  • Most powerful swell: Saturday 6 Jun, 8AM (local time) - 7ft (2.1m), 10s period, W swell with 847 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 1.2m 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 2.1m 10s and forecast to arrive on Saturday (Jun 06) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Jun 06) at 2AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 1st Jun)2ft (0.6m) 20s
Best Surf 8AM (Sat 6th Jun)7ft (2.1m) 10s
Most Powerful 8AM (Sat 6th Jun)7ft (2.1m) 10s

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. Warm (max 24°C on Tue afternoon, min 9°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Fri night. Very mild (max 13°C on Wed morning, min 10°C on Fri night). Wind will be generally light.

Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
1
0
2
2
0
1
2
2
0
0
0
1
1
1
2
4
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
WNW
11
1.4
WNW
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
1.3
WSW
11
1.6
W
10
1.7
W
10
1.5
W
11
1.3
W
11
1
SW
19
0.8
SW
19
1
SW
17
2
W
10
1.7
W
10
1.7
W
10
Wave Graph
Metric surfscale
Energy kJ
427
373
312
239
369
383
375
366
333
356
400
509
533
526
389
701
432
575
786
552
524
Wind (km/h)
25
NNW
25
NW
15
N
10
NNW
20
NNW
10
ENE
5
E
15
NW
10
SW
15
SW
15
SW
15
WNW
20
WNW
20
WNW
15
WNW
15
WSW
20
WSW
15
SSW
10
SSW
10
SW
10
SW
on
on
cross-on
on
on
cross-off
glassy
on
cross
cross
cross
cross-on
on
on
cross-on
cross-on
cross
cross-off
cross-off
cross
cross
High Tide
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
4:35AM2.26m
6:25PM2.14m
Low Tide
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
10:51PM1.15m
11:21AM0.06m
11:51PM1.08m
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
part cloud
cloud
cloud
clear
part cloud
part cloud
part cloud
rain showers
rain showers
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:24
5:24
5:24
5:24
5:22
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:01
9:02
9:04
9:04
9:05
9:06
9:07
3
2
1
1
Temp °C
10
11
10
16
18
18
23
24
15
13
13
12
12
12
12
12
12
12
11
10
10
4
6
4
13
13
15
21
21
13
11
11
10
9
8
8
9
8
9
9
5
7
Swell 1
Height (m)
Direction
Period (s)
0.3
SW
14
0.4
SW
21
1.3
WNW
10
1.2
WNW
9
0.9
WNW
9
0.9
WNW
8
0.8
SW
18
0.8
SW
18
1.1
W
12
1.2
WSW
11
1.3
WSW
11
1.6
W
10
0.6
SW
15
0.6
SW
14
1.3
W
11
1.2
W
11
1.3
W
11
1.3
W
10
1
SW
17
1.7
W
10
1.7
W
10
Energy kJ
30
162
312
208
134
96
375
366
333
356
400
509
174
132
389
319
394
367
582
552
524
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
22
0.3
SW
14
0.6
SW
21
0.6
SW
20
0.7
SW
19
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
0.5
SW
20
0.6
SW
18
0.7
SW
18
1
SW
19
0.8
SW
19
1
SW
17
0.9
SW
17
0.8
SW
16
Energy kJ
76
29
271
239
369
383
77
80
318
306
357
239
194
203
325
701
432
575
499
371
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
18
0.3
SW
18
0.3
SW
13
0.3
SW
16
0.2
SSW
13
0.1
SW
12
0.1
SW
12
0.3
W
14
0.1
SW
22
0.4
SW
20
0.5
W
12
0.3
SW
21
0.6
SW
15
0.6
SW
16
0.1
W
19
Energy kJ
12
49
27
41
16
6
6
34
18
134
73
72
171
157
7
Wind waves
Height (m)
Direction
Period (s)
1.4
WNW
11
1.4
WNW
10
1.2
NW
6
0.4
NW
3
0.4
NW
3
1.7
W
10
1.5
W
11
0.9
SSW
4
2
W
10
Energy kJ
427
373
109
2
3
533
526
35
786
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
2
1
2
2
1
2
3
3
2
4
3
3
3
4
3
4
3
3
Distance (km)
166
964
4
4
166
0
0
141
0
0
0
62
1021
1119
52
0
117
0
0
0
0
Best forecast wave conditions in Washington State
Rating
(10 max)
3
2
3
3
2
3
3
3
3
3
3
4
4
4
3
4
Best forecast wave conditions in United States
Rating
(10 max)
4
3
4
4
4
4
3
3
4
3
3
4
4
3
5
4
4
4
4
3
4
Header Global
Rating
(10 max)
5
5
4
5
5
4
4
5
5
5
4
5
5
6
9
9
7
9
9
9
9
  • 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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