Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 4 pm Wednesday 27 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
12.2° C
(Which is normal for this time of year)

Half Moon Bay surf forecast from 28 May 2026:

  • Best quality surf: Wednesday 3 Jun, 5AM (local time) - 2.5ft (0.8m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Friday 29 May, 5AM (local time) - 8ft (2.5m), 14s period, WNW swell with 3,009 kJ wave energy.
  • Next surfable swell (1★+): Monday 1 Jun, 8AM (local time) - 5ft (1.5m), 8s period with WNW 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 1.5m and 8s period with a secondary swell of 0.6m and 20s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Half Moon Bay in the next 16 days are 2.5m 14s and forecast to arrive on Friday (May 29) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Wednesday (Jun 03) at 8PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 1st Jun)5ft (1.5m) 8s
Best Surf 5AM (Wed 3rd Jun)2.5ft (0.8m) 16s
Most Powerful 5AM (Fri 29th May)8ft (2.5m) 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 12°C on Wed afternoon, min 10°C on Thu night). Winds increasing (light winds from the NNW on Wed night, fresh winds from the NW by Thu night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Tue morning, min 9°C on Sat night). Winds decreasing (fresh winds from the NW on Sat night, calm by Mon morning).

Wed
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
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
3
2
0
0
0
0
0
0
0
0
0
0
1
2
0
2
1
0
2
2
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)
0.7
W
22
1.6
W
18
2.1
W
16
2.1
W
16
2.5
WNW
14
2.5
WNW
14
2.3
WNW
13
1.2
W
12
1.5
WNW
12
1.7
WNW
11
1.6
WNW
11
1.5
WNW
11
1.5
WNW
10
1.5
WNW
10
0.6
SW
20
0.7
SW
19
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
16
1.4
WSW
11
Wave Graph
Metric surfscale
Energy kJ
444
1633
2318
2206
2779
2648
1793
432
579
704
597
487
446
399
306
369
383
375
432
375
447
Wind (km/h)
20
NW
10
NW
15
WNW
35
NW
35
NW
30
NW
30
NW
20
NNW
20
NW
30
NW
25
NNW
25
NW
30
NW
15
NNW
5
W
15
WNW
5
NNW
10
WSW
10
W
15
SSW
15
S
on
on
cross-on
on
on
on
on
on
on
on
on
on
on
on
glassy
cross-on
glassy
cross-on
cross-on
cross-off
cross-off
High Tide
11:02PM2.73m
12:12PM2.09m
11:39PM2.77m
12:59PM2.16m
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
Low Tide
4:36PM0.75m
5:38AM-0.04m
5:20PM0.87m
6:17AM-0.16m
6:02PM0.98m
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
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:26
5:26
5:26
5:24
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:58
8:59
9:00
9:00
9:01
9:02
9:04
9:04
2
2
Temp °C
12
11
12
12
11
10
11
10
11
11
10
10
11
10
11
12
12
14
13
12
12
9
8
11
7
4
3
4
3
6
5
4
5
5
4
10
8
9
12
10
10
9
Swell 1
Height (m)
Direction
Period (s)
1.7
WNW
9
1.6
W
18
2.1
W
16
2.1
W
16
0.4
SW
14
0.4
SW
14
0.4
SW
14
1.2
W
12
0.4
SW
15
0.4
SW
14
0.3
SW
14
0.3
SW
14
0.4
SW
21
1.5
WNW
10
1.4
WNW
8
1.3
WNW
8
0.9
WNW
8
0.8
WNW
8
0.8
SW
18
0.8
SW
16
1.4
WSW
11
Energy kJ
436
1633
2318
2206
53
51
49
432
58
74
31
30
162
399
268
196
107
81
432
375
447
Swell 2
Height (m)
Direction
Period (s)
0.7
W
22
1.6
WNW
8
1.6
WNW
8
0.4
SW
14
0.4
SW
14
0.3
SW
14
0.1
W
25
0.1
SW
25
0.2
WSW
24
0.3
SW
22
0.3
SW
14
0.6
SW
21
0.6
SW
20
0.7
SW
19
0.8
SW
18
0.8
SW
18
0.8
WNW
8
0.7
WSW
12
0.8
SW
16
Energy kJ
444
326
346
53
49
29
12
24
54
76
29
271
306
369
383
375
79
162
306
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
16
0.4
SW
14
0.4
SW
14
0.1
SW
16
0.1
W
25
0.1
SW
25
0.1
SW
19
0.1
SW
18
0.3
SW
18
0.3
SW
13
0.3
SW
16
0.3
SW
13
0.1
SW
12
0.2
SSW
12
0.2
W
12
0.5
WNW
9
0.1
SW
21
Energy kJ
85
74
53
10
13
24
15
12
49
27
41
26
6
15
12
43
18
Wind waves
Height (m)
Direction
Period (s)
1.9
WNW
8
2.5
WNW
14
2.5
WNW
14
2.3
WNW
13
1.3
WNW
8
1.5
WNW
12
1.7
WNW
11
1.6
WNW
11
1.5
WNW
11
1.5
WNW
10
0.5
S
4
Energy kJ
432
2779
2648
1793
204
579
704
597
487
446
8
Nearest Offshore or Glassy
Rating
(10 max)
2
4
3
4
4
4
2
3
2
1
2
1
1
3
2
4
2
2
3
2
3
Distance (km)
149
4
141
511
511
960
964
52
574
1119
144
964
964
5
0
766
0
0
259
0
0
Best forecast wave conditions in Washington State
Rating
(10 max)
2
4
3
3
2
3
3
3
2
3
3
Best forecast wave conditions in United States
Rating
(10 max)
4
4
4
4
4
4
3
4
2
2
4
4
3
4
3
4
4
3
4
4
3
Header Global
Rating
(10 max)
7
9
9
6
5
5
5
5
7
7
5
5
5
4
4
4
5
5
5
4
4
  • 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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