Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 4 am 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
12.6° C
(Which is normal for this time of year)

Half Moon Bay surf forecast from 29 May 2026:

  • Best quality surf: Wednesday 3 Jun, 5PM (local time) - 5.5ft (1.7m), 16s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Friday 29 May, 2PM (local time) - 8ft (2.4m), 13s period, WNW swell with 1,995 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 glassy as the swell arrives.

The most powerful waves expected at Half Moon Bay in the next 16 days are 2.4m 13s and forecast to arrive on Friday (May 29) at 2PM. 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 4s period and expected on Wednesday (Jun 03) at 2PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 1st Jun)2ft (0.6m) 20s
Best Surf 5PM (Wed 3rd Jun)5.5ft (1.7m) 16s
Most Powerful 2PM (Fri 29th May)8ft (2.4m) 13s

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 Fri afternoon, min 9°C on Sat night). Winds decreasing (fresh winds from the NW on Fri morning, light winds from the N by Sun night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Wed morning. Very mild (max 14°C on Tue afternoon, min 9°C on Mon morning). Wind will be generally light.

Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
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
0
0
0
0
0
0
0
1
0
1
0
0
1
2
4
1
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
W
14
2.3
WNW
13
1.8
WNW
12
1.5
WNW
12
1.6
WNW
11
1.6
WNW
11
1.4
WNW
11
1.4
WNW
10
0.6
SW
21
0.6
SW
20
0.7
SW
19
0.8
SW
18
0.8
SW
18
0.8
SW
18
0.8
SW
16
0.8
SW
16
1.7
WSW
16
1.8
WSW
10
0.6
SW
20
0.6
SW
18
0.7
SW
18
Wave Graph
Metric surfscale
Energy kJ
880
1793
916
579
681
572
408
394
271
239
369
383
375
366
375
325
1517
640
254
203
321
Wind (km/h)
35
NW
30
NW
20
NNW
20
NW
25
NW
25
NNW
20
NW
30
NW
15
NNW
10
W
20
NW
10
WNW
10
W
20
WNW
10
WSW
5
NE
15
SSW
10
NW
10
WNW
20
NW
10
N
on
on
on
on
on
on
on
on
cross-on
cross-on
on
on
cross-on
on
cross
glassy
cross-off
on
cross-on
on
cross-on
High Tide
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
4:19PM2.17m
3:12AM2.55m
4:59PM2.14m
3:50AM2.43m
Low Tide
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
9:18PM1.18m
10:01AM-0.11m
10:01PM1.18m
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:26
5:24
5:24
5:24
5:24
<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
1
Temp °C
10
11
10
11
11
10
10
11
10
12
13
13
13
14
13
12
12
12
12
13
13
2
4
3
7
5
4
5
5
3
10
9
10
11
11
11
9
9
10
10
10
9
Swell 1
Height (m)
Direction
Period (s)
1.5
W
14
0.4
SW
14
1.8
WNW
12
1.5
WNW
12
0.4
SW
14
1.6
WNW
11
1.4
WNW
11
0.4
SW
21
0.7
W
10
1.2
WNW
9
1.1
WNW
8
0.9
WNW
8
0.8
WNW
8
0.8
WNW
8
0.8
SW
16
1.1
WSW
11
0.8
SW
16
0.7
SW
16
1.2
WSW
9
1.1
W
9
1.1
W
10
Energy kJ
880
49
916
579
74
572
408
162
92
203
138
119
90
85
375
325
302
239
254
203
231
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
14
0.4
SW
14
0.3
SW
14
0.4
SW
15
0.1
SW
25
0.3
SW
14
0.3
SW
14
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
SW
18
0.8
WSW
12
0.8
SW
16
0.4
SW
20
0.7
SW
15
0.6
SW
15
0.7
SW
18
Energy kJ
31
48
30
58
24
31
30
29
271
239
369
383
375
366
205
310
134
212
134
321
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
W
25
0.2
WSW
24
0.3
SW
22
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
WSW
14
0.6
W
8
0.1
SW
22
0.4
SW
20
0.6
SW
20
0.6
SW
18
0.6
SW
14
Energy kJ
10
12
54
76
49
27
41
16
6
6
41
43
18
134
248
203
169
Wind waves
Height (m)
Direction
Period (s)
2.2
WNW
9
2.3
WNW
13
1.4
NW
7
1.6
WNW
11
1.4
WNW
10
1.2
WNW
6
1.3
WNW
8
1.7
WSW
16
1.8
WSW
10
Energy kJ
816
1793
211
681
394
109
209
1517
640
Nearest Offshore or Glassy
Rating
(10 max)
3
2
4
2
1
1
4
1
3
2
4
2
1
1
2
2
4
3
3
2
2
Distance (km)
571
964
218
964
964
141
960
1023
117
70
787
4
166
964
0
0
0
4
278
52
4
Best forecast wave conditions in Washington State
Rating
(10 max)
1
3
3
3
3
3
4
3
2
3
Best forecast wave conditions in United States
Rating
(10 max)
3
2
4
3
3
4
4
4
4
4
4
4
4
2
4
3
4
3
4
3
4
Header Global
Rating
(10 max)
5
5
5
7
7
6
5
5
4
4
5
8
4
6
5
5
5
5
5
7
6
  • 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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