Surf Forecasts and Marine Weather - No Hype - Just the Facts!
PDO Rises, Warm Water Pushes East, But... - Video Forecast HERE (12/14/25)
Buoys | Buoy Forecast | Bulletins | Models: Wave - Weather - Surf - Altimetry - Snow | Pacific Forecast | QuikCAST | El Nino | Tutorials | Great Circles | Video

Google
Create Your Own Surf Forecast
Swell Calculator
Swell Decay Tables
Sea Height Tables
Swell Category Table
.

Surf Spot Forecast Graph
Surf Size, Swell Size, Swell Period & Direction, Wind Speed & Direction

 

Half_Moon_Bay
Coordinates: 37.35N -122.5W
Start Time (GMT): 18Z17DEC2025
Local Time Zone: GMT -8
© Stormsurf 2025

Surf Hgt
ft
10
8
6
4
2

5.6

5.4

5.4

5.5

5.7

5.6

5.1

4.8

6.0

5.7

5.2

4.8

4.4

4.2

4.1

4.3

4.6

5.0

5.5

6.0

6.2

6.1

5.8

4.9

4.3

3.6

4.1

5.6

4.3

5.2

3.7

4.2

4.3

4.0

4.1

3.9

3.8

3.5

4.0

3.6

3.3

3.2

3.1

3.0

3.5

6.3

5.8

6.0

6.1

6.3

6.3

6.3

6.4

6.9

6.6

6.0

5.6

5.1

4.6

4.1

3.5

Wind
kts
30
25
20
15
10
5

7

6

8

8

8

9

9

5

4

7

6

5

4

4

4

2

6

6

8

10

8

5

3

7

8

10

12

13

15

14

15

14

10

7

1

1

3

8

8

4

5

7

6

7

6

2

9

15

21

26

30

29

17

12

7

1

6

12

11

10

14

WDir
dg
WDir
dg

SSE

WSW

NW

N

NNW

NNW

NNW

N

NNW

NW

NNW

NNW

N

ESE

WSW

SSW

S

SSW

SSE

SSE

SSE

S

S

SSE

S

S

S

S

SSE

S

S

S

SSW

WSW

S

SSW

W

NNW

N

N

NNW

N

N

NNW

NNE

ENE

SSE

SSE

SSE

SSE

S

S

SSW

WNW

WSW

S

ESE

SSE

SE

E

ESE

   

17 We 10

17 We 13

17 We 16

17 We 19

17 We 22

18 Th 01

18 Th 04

18 Th 07

18 Th 10

18 Th 13

18 Th 16

18 Th 19

18 Th 22

19 Fr 01

19 Fr 04

19 Fr 07

19 Fr 10

19 Fr 13

19 Fr 16

19 Fr 19

19 Fr 22

20 Sa 01

20 Sa 04

20 Sa 07

20 Sa 10

20 Sa 13

20 Sa 16

20 Sa 19

20 Sa 22

21 Su 01

21 Su 04

21 Su 07

21 Su 10

21 Su 13

21 Su 16

21 Su 19

21 Su 22

22 Mo 01

22 Mo 04

22 Mo 07

22 Mo 10

22 Mo 13

22 Mo 16

22 Mo 19

22 Mo 22

23 Tu 01

23 Tu 04

23 Tu 07

23 Tu 10

23 Tu 13

23 Tu 16

23 Tu 19

23 Tu 22

24 We 01

24 We 04

24 We 07

24 We 10

24 We 13

24 We 16

24 We 19

24 We 22

Date/Day/Time (Local - 24 hr)
Swell Hgt
ft

6

5

4

3

2

1

4.9

4.7

4.7

5.0

5.2

4.8

4.7

4.1

5.4

5.2

4.9

4.6

4.3

4.0

4.0

4.2

4.4

4.8

5.1

5.5

5.7

5.7

5.5

4.6

4.2

3.6

3.4

4.8

4.1

4.7

4.6

5.0

5.0

4.8

4.9

4.7

4.4

4.1

3.9

3.6

3.4

3.3

3.2

3.1

3.5

5.0

5.1

5.1

5.1

5.1

5.1

5.2

5.3

5.8

5.5

5.1

4.8

4.4

4.0

3.6

3.2

Swell Per
sec

25

20

15

10

5

11.6

11.6

11.5

11.0

10.9

11.5

11.0

11.7

10.9

10.8

10.7

10.4

10.4

10.3

10.2

10.2

10.4

10.5

10.7

10.9

10.8

10.7

10.6

10.6

10.1

10.1

12.0

11.7

10.5

11.1

8.0

8.4

8.5

8.4

8.3

8.3

8.8

8.4

10.1

10.0

9.8

9.7

9.7

9.7

10.1

12.5

11.5

11.9

12.1

12.3

12.3

12.2

12.1

12.0

11.9

11.8

11.7

11.6

11.5

11.2

11.0

SDir
dg
SDir
dg

270

269

272

277

278

276

275

271

284

284

284

283

283

282

283

284

284

283

283

282

282

282

282

280

277

269

293

276

253

256

251

254

256

258

262

263

263

263

264

262

262

263

264

304

299

288

288

289

290

291

291

291

292

294

294

294

295

295

296

296

297

   

17 We 10

17 We 13

17 We 16

17 We 19

17 We 22

18 Th 01

18 Th 04

18 Th 07

18 Th 10

18 Th 13

18 Th 16

18 Th 19

18 Th 22

19 Fr 01

19 Fr 04

19 Fr 07

19 Fr 10

19 Fr 13

19 Fr 16

19 Fr 19

19 Fr 22

20 Sa 01

20 Sa 04

20 Sa 07

20 Sa 10

20 Sa 13

20 Sa 16

20 Sa 19

20 Sa 22

21 Su 01

21 Su 04

21 Su 07

21 Su 10

21 Su 13

21 Su 16

21 Su 19

21 Su 22

22 Mo 01

22 Mo 04

22 Mo 07

22 Mo 10

22 Mo 13

22 Mo 16

22 Mo 19

22 Mo 22

23 Tu 01

23 Tu 04

23 Tu 07

23 Tu 10

23 Tu 13

23 Tu 16

23 Tu 19

23 Tu 22

24 We 01

24 We 04

24 We 07

24 We 10

24 We 13

24 We 16

24 We 19

24 We 22

Date/Day/Time (Local - 24 hr)

.
Contact | About | Disclaimer | Privacy
Advertise/Content | Links
Visit Mark Sponsler on Facebook Visit Stormsurf on Instagram Visit Stormsurf on YouTube
Copyright © 2025 STORMSURF - All Rights Reserved
This page cannot be duplicated, reused or framed in another window without express written permission.
But links are always welcome.
Buoys | Buoy Forecast | Bulletins | Models: Wave - Weather - Surf - Altimetry - Snow | Pacific Forecast | QuikCAST | El Nino | Tutorials | Great Circles | Calculator