The surf forecast is 4-6+ ft and semi glassy right now for Half Moon Bay, CA

  • WEATHER FORECAST
    54° NNW @ 5mph
  • LOW / HIGH TIDE
    1:59am / 8:06am
  • BUOY 46237
    W5.2ft @ 13s
  • WATER TEMP
    55° 4/3, Boots/Gloves(3+)

Forecast

Surf
Swell
5 day
16 day
  • 8ft
  • 6ft
  • 4ft
  • 2ft
THU 18
FRI 19
SAT 20
SUN 21
4am
  • Clean
  • Fair
  • Choppy
Conditions are 5-7+ ft and clean at 4am on Wed 12/17
Compass Map
Forecast Compass Compass Wind Arrow Compass Primary Swell Arrow Compass Secondary Swell Arrow
Wind Arrow
WIND SSW 3 mph
Primary Swell Arrow
PRIMARY W (272) 6.1 ft @ 12 sec
Secondary Swell Arrow
SECONDARY SSW (213) 0.7 ft @ 15 sec
TIDE LEVEL
Incoming Low Tide, 3.8 ft

Forecast Details

Basic
Detail
  • Wednesday, Dec 17
    SURF WIND SWELL
    6am
    5-7 ft
    fair
    SSW
    5mph
    5.8ft
    12s
    W
    12pm
    4-6+ ft
    fair
    S
    7mph
    5.4ft
    12s
    W
    6pm
    4-6+ ft
    choppy
    NNW
    8mph
    5.8ft
    11s
    W
  • Best Board for Wednesday
  • Thursday, Dec 18
    SURF WIND SWELL
    6am
    4-6+ ft
    clean
    E
    6mph
    6ft
    11s
    WNW
    12pm
    4-6+ ft
    clean
    NW
    3mph
    6.1ft
    11s
    WNW
    6pm
    4-6 ft
    clean
    NNW
    2mph
    5.4ft
    11s
    WNW
  • Friday, Dec 19
    SURF WIND SWELL
    6am
    4-5 ft
    fair
    SW
    4mph
    4.9ft
    10s
    WNW
    12pm
    4-6 ft
    choppy
    SSW
    7mph
    5.4ft
    10s
    WNW
    6pm
    4-7 ft
    fair
    S
    8mph
    6.2ft
    11s
    WNW
  • Saturday, Dec 20
    SURF WIND SWELL
    6am
    5-7 ft
    clean
    SSE
    3mph
    6ft
    12s
    WNW
    12pm
    4-7 ft
    fair
    S
    7mph
    5.5ft
    12s
    WNW
    6pm
    4-6+ ft
    choppy
    S
    12mph
    5.5ft
    12s
    W
  • Best Surf Trip
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  • Sunday, Dec 21
    SURF WIND SWELL
    6am
    4-5 ft
    choppy
    S
    14mph
    5.9ft
    9s
    W
    12pm
    4-5 ft
    choppy
    SW
    8mph
    5.5ft
    9s
    W
    6pm
    3-5 ft
    clean
    SW
    2mph
    5ft
    10s
    W
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This forecast is for beaches with direct offshore winds from East to East-North-East, and was updated Dec 17, 2025 @ 5:14pm.
Read more about the Surf Captain forecasts.