Half Moon Bay surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 4 pm Thursday 14 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
14.4° C
(Which is 2.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Half Moon Bay this week:

The most powerful waves expected at Half Moon Bay in the next 16 days are 2.5m 14s and forecast to arrive on Saturday (May 16) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Sat 16th 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

Heavy rain (total 25mm), heaviest during Fri morning. Very mild (max 11°C on Thu night, min 9°C on Fri morning). Winds decreasing (fresh winds from the WNW on Thu night, light winds from the NNE by Sun morning).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 12°C on Mon night, min 9°C on Mon morning). Winds increasing (light winds from the NNW on Mon morning, fresh winds from the NW by Tue afternoon).

Thu
14
Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
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
0
1
0
0
0
0
0
2
0
0
0
1
1
0
0
0
1
0
0
1
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)
1.1
WSW
9
1.6
W
7
0.9
W
15
1
W
14
2.5
W
14
2.5
W
13
2.5
W
12
2.4
WNW
12
1.6
W
11
1.5
W
11
1.2
WNW
10
1
W
10
1.6
W
16
1.7
W
14
2.2
WNW
13
2.3
WNW
13
1.8
WNW
9
1.8
WNW
12
1.6
WNW
11
1.3
WNW
11
0.9
WNW
10
Wave Graph
Metric surfscale
Energy kJ
188
250
357
411
2267
2011
1760
1551
617
525
306
196
1273
1175
1544
1671
516
828
582
372
167
Wind (km/h)
15
SSW
20
W
25
SW
25
W
30
W
25
NW
30
NW
20
NW
10
WNW
20
NW
10
NNW
15
WNW
20
WNW
15
WNW
25
NW
30
NW
20
NW
15
NW
25
NW
15
NW
10
WNW
cross-off
cross-on
cross
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
on
on
on
on
on
on
on
on
High Tide
11:39PM2.93m
12:48PM2.37m
00:21AM3.08m
1:41PM2.44m
1:04AM3.18m
2:33PM2.48m
1:51AM3.21m
3:25PM2.47m
2:39AM3.15m
4:18PM2.43m
3:31AM3.01m
5:12PM2.37m
4:27AM2.80m
Low Tide
5:17PM0.58m
6:11AM-0.39m
6:04PM0.67m
6:58AM-0.62m
6:51PM0.75m
7:45AM-0.75m
7:39PM0.83m
8:34AM-0.77m
8:29PM0.89m
9:24AM-0.69m
9:22PM0.95m
10:16AM-0.54m
10:20PM0.99m
11:11AM-0.34m
light rain
rain showers
light rain
rain showers
rain showers
rain showers
rain showers
cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:39
5:39
5:37
5:37
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:43
8:44
8:45
8:46
8:47
8:49
8:50
8:51
4
1
4
5
8
2
1
Temp °C
10
11
10
10
10
11
11
11
11
11
10
11
11
12
11
11
10
11
11
10
12
7
3
4
4
4
5
3
5
8
6
5
8
7
9
5
6
3
8
6
5
10
Swell 1
Height (m)
Direction
Period (s)
1.1
WSW
9
0.6
W
16
0.9
W
15
1
W
14
0.4
SW
16
2.5
W
13
0.4
SW
15
2.1
W
12
1.6
W
11
1.5
W
11
1.2
WNW
10
1
W
10
1.6
W
16
1.7
W
14
0.4
SW
18
0.4
SW
16
1
W
12
1.8
WNW
12
0.4
SW
21
0.4
SW
16
0.9
WNW
10
Energy kJ
188
192
357
411
89
2011
77
1227
617
525
306
196
1273
1175
108
69
280
828
117
64
167
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
13
0.4
W
9
0.6
SW
16
0.5
SW
16
0.1
SW
12
0.4
SW
15
0.1
W
20
0.4
SW
15
0.4
SW
15
0.4
SW
14
0.3
SW
14
0.5
W
17
0.3
SW
14
0.2
WSW
19
0.2
WSW
24
0.4
SW
17
0.5
SW
16
0.4
SW
16
0.2
WSW
21
0.5
SW
16
Energy kJ
28
27
163
127
5
77
7
79
75
53
33
140
30
35
54
70
132
67
44
118
Swell 3
Height (m)
Direction
Period (s)
0.3
SW
18
0.4
SW
18
0.1
SW
20
0.1
SW
18
0.2
W
20
0.3
SW
14
0.2
WSW
18
0.2
SSW
13
0.1
SW
24
0.4
SW
16
0.1
W
15
Energy kJ
49
108
15
13
30
32
32
17
22
94
4
Wind waves
Height (m)
Direction
Period (s)
1.6
W
7
1.5
W
8
1.6
W
7
2.5
W
14
2.5
W
12
2.4
WNW
12
0.6
NW
3
2.2
WNW
13
2.3
WNW
13
1.8
WNW
9
1.6
WNW
11
1.3
WNW
11
0.8
WNW
4
Energy kJ
250
259
277
2267
1760
1551
9
1544
1671
516
582
372
24
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
5
3
4
3
2
1
1
1
3
3
3
4
4
3
2
3
2
Distance (km)
45
141
141
141
117
141
1436
141
178
178
4
178
259
52
160
960
128
4
366
5
52
Best forecast wave conditions in Washington State
Rating
(10 max)
2
1
2
2
5
3
3
2
1
2
1
3
3
2
3
3
2
Best forecast wave conditions in United States
Rating
(10 max)
3
4
4
3
5
4
4
8
5
4
6
4
4
4
4
4
4
4
4
4
3
Header Global
Rating
(10 max)
5
5
5
4
4
5
5
8
5
4
6
4
4
4
5
4
5
6
9
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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