National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Half Moon Bay Airport
Metric (Imperial)
Date Time (pdt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
24 05:15 N 15 G 26 12.87 Overcast OVC008 15 15 100% 76.15 0.0
24 04:55 N 17 12.87 Overcast OVC008 15 15 100% 76.15 0.0
24 04:35 N 20 12.87 Overcast OVC008 15 15 100% 76.12 0.0
24 04:15 N 20 12.87 Overcast OVC007 15 15 100% 76.12 0.0
24 03:55 N 17 12.87 Overcast OVC007 0 0 0% 76.15 0.0
24 03:35 N 19 11.27 Overcast OVC008 15 15 100% 76.15 0.0
24 03:15 N 19 12.87 Overcast OVC008 15 15 100% 76.15 0.0
24 02:35 N 19 12.87 Overcast OVC008 16 16 100% 76.15 0.0
24 01:35 NW 13 11.27 Overcast OVC009 15 15 100% 76.2 0.0
24 01:15 NW 17 11.27 Overcast OVC009 15 15 100% 76.2 0.0
24 00:55 NW 11 11.27 Overcast OVC008 15 15 100% 76.23 0.0
24 00:35 Vrbl 9 11.27 Overcast OVC009 0 0 0% 76.23 0.0
23 23:55 N 7 11.27 Overcast OVC009 15 15 100% 76.23 0.0
23 23:35 NW 13 11.27 Overcast BKN009 OVC013 15 15 100% 76.23 0.0
23 23:15 NW 15 G 28 12.87 Overcast OVC010 15 15 100% 76.23 0.0
23 22:55 NW 17 11.27 Overcast OVC010 15 15 100% 76.23 0.0
23 22:35 N 15 12.87 Overcast OVC010 16 16 100% 76.25 0.0
23 22:15 N 15 G 26 11.27 Overcast OVC010 16 16 100% 76.25 0.0
23 21:55 N 22 12.87 Overcast OVC010 16 16 100% 76.25 0.0
23 21:35 N 19 11.27 Overcast OVC010 16 16 100% 76.25 0.0
23 21:15 N 17 G 28 11.27 Overcast OVC010 16 16 100% 76.23 0.0
23 20:55 N 20 12.87 Overcast OVC010 16 16 100% 76.23 0.0
23 20:35 N 22 11.27 Overcast OVC010 16 16 100% 76.23 0.0
23 20:15 NW 20 11.27 Overcast OVC009 16 16 100% 76.23 0.0
23 19:55 NW 17 11.27 Overcast OVC009 16 16 100% 76.23 0.0
23 19:35 NW 17 11.27 Overcast OVC010 16 16 100% 76.23 0.0
23 19:15 NW 20 9.66 Fog/Mist OVC011 0 0 0% 76.2 0.0
23 18:55 N 17 11.27 Overcast OVC012 17 16 94% 76.2 0.0
23 18:35 NW 15 G 28 12.87 Overcast OVC013 0 0 0% 76.2 0.0
23 18:15 NW 22 12.87 Overcast OVC013 17 16 94% 76.23 0.0
23 17:55 NW 26 14.48 Overcast OVC013 17 16 94% 76.23 0.0
23 17:35 NW 20 12.87 Overcast OVC013 17 16 94% 76.25 0.0
23 17:15 NW 20 12.87 Mostly Cloudy BKN013 18 16 88% 76.25 0.0
23 16:55 NW 20 14.48 A Few Clouds FEW013 18 16 88% 76.25 0.0
23 16:35 NW 19 G 31 11.27 Fair CLR 18 16 88% 76.25 0.0
23 16:15 NW 20 11.27 A Few Clouds FEW013 0 0 0% 76.28 0.0
23 15:55 NW 26 G 37 12.87 Partly Cloudy SCT013 18 16 88% 76.28 0.0
23 15:35 NW 26 12.87 Mostly Cloudy BKN012 BKN017 0 0 0% 76.28 0.0
23 15:15 NW 24 G 33 14.48 Overcast OVC012 17 16 94% 76.3 0.0
23 14:55 NW 24 12.87 Overcast OVC012 18 16 88% 76.3 0.0
23 14:35 NW 22 14.48 Overcast OVC012 18 16 88% 76.3 0.0
23 14:15 NW 28 14.48 Overcast OVC013 18 15 83% 76.33 0.0
23 13:55 N 24 G 35 14.48 Overcast OVC013 18 15 83% 76.33 0.0
23 13:35 NW 20 14.48 Overcast OVC013 18 16 88% 76.35 0.0
23 13:15 NW 22 12.87 Overcast OVC013 18 16 88% 76.35 0.0
23 12:55 NW 20 14.48 Overcast OVC013 17 15 88% 76.35 0.0
23 12:35 NW 22 G 31 14.48 Overcast OVC013 17 15 88% 76.38 0.0
23 12:15 NW 20 12.87 Overcast OVC013 17 16 94% 76.38 0.0
23 11:55 NW 15 G 28 12.87 Overcast OVC013 17 16 94% 76.4 0.0
23 11:35 NW 19 11.27 Mostly Cloudy BKN013 17 16 94% 76.38 0.0
23 11:15 NW 20 11.27 Mostly Cloudy BKN012 16 16 100% 76.38 0.0
23 10:55 NW 19 12.87 Mostly Cloudy BKN009 0 0 0% 76.38 0.0
23 10:35 N 17 G 26 11.27 Mostly Cloudy BKN008 16 16 100% 76.38 0.0
23 10:15 NW 19 11.27 Overcast OVC008 16 15 94% 76.38 0.0
23 09:55 N 15 G 28 11.27 Overcast OVC008 16 15 94% 76.38 0.0
23 09:35 NW 20 11.27 Overcast OVC009 16 15 94% 76.38 0.0
23 09:15 NW 20 12.87 Overcast OVC010 16 15 94% 76.35 0.0
23 08:55 NW 19 G 28 11.27 Overcast OVC009 16 15 94% 76.35 0.0
23 08:35 NW 17 12.87 Overcast OVC009 16 16 100% 76.35 0.0
23 08:15 N 19 12.87 Overcast OVC009 16 16 100% 76.35 0.0
23 07:35 NW 19 11.27 Overcast OVC008 15 15 100% 76.35 0.0
23 07:15 N 17 11.27 Overcast OVC007 15 15 100% 76.35 0.0
23 06:55 NW 19 11.27 Overcast OVC007 15 15 100% 76.33 0.0
23 06:35 N 17 8.05 Fog/Mist OVC006 15 15 100% 76.33 0.0
23 06:15 N 11 9.66 Fog/Mist OVC005 15 15 100% 76.3 0.0
23 05:55 N 13 6.44 Fog/Mist OVC004 15 15 100% 76.3 0.0
23 05:35 N 9 G 28 4.83 Fog/Mist OVC004 15 15 100% 76.3 0.0
23 05:15 N 13 6.44 Fog/Mist OVC003 15 15 100% 76.3 0.0
23 04:55 N 17 8.05 Fog/Mist OVC004 15 15 100% 76.28 0.0
23 04:35 N 13 11.27 Overcast OVC004 15 15 100% 76.28 0.0
23 04:15 N 13 G 22 12.87 Overcast OVC006 15 15 100% 76.28 0.0
23 03:55 NW 15 12.87 Overcast OVC008 15 15 100% 76.3 0.0
23 03:35 N 13 G 22 12.87 Overcast OVC008 15 15 100% 76.3 0.0
23 02:55 N 11 9.66 Fog/Mist OVC008 15 15 100% 76.3 0.0
23 02:35 Calm 9.66 Fog/Mist OVC008 15 15 100% 76.33 0.0
23 02:15 Calm 8.05 Fog/Mist BKN009 OVC013 15 15 100% 76.33 0.0
23 01:55 N 7 9.66 Fog/Mist BKN008 BKN012 15 15 100% 76.33 0.0
23 01:35 NW 9 9.66 Fog/Mist OVC008 16 16 100% 76.33 0.0
23 01:15 Vrbl 11 9.66 Fog/Mist BKN007 OVC010 16 16 100% 76.33 0.0
23 00:55 N 9 G 22 9.66 Overcast OVC005 0 0 0% 76.35 0.0
23 00:35 N 11 8.05 Fog/Mist OVC005 16 16 100% 76.35 0.0
22 23:55 N 7 G 19 8.05 Fog/Mist OVC006 16 16 100% 76.35 0.0
22 23:35 N 11 8.05 Mostly Cloudy BKN006 0 0 0% 76.35 0.0
22 23:15 N 11 8.05 Fog/Mist FEW006 16 16 100% 76.38 0.0
22 22:55 N 11 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 22:35 NW 11 G 22 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 22:15 N 13 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 21:55 N 11 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 21:35 N 13 9.66 Fog/Mist CLR 16 16 100% 76.38 0.0
22 21:15 N 11 G 20 8.05 Fog/Mist CLR 16 16 100% 76.35 0.0
22 20:35 NW 15 8.05 Fog/Mist CLR 16 16 100% 76.35 0.0
22 20:15 NW 11 9.66 Fog/Mist CLR 16 16 100% 76.35 0.0
22 19:55 NW 15 9.66 Fog/Mist CLR 17 17 100% 76.35 0.0
22 19:35 NW 15 11.27 Mostly Cloudy FEW008 BKN020 17 17 100% 76.35 0.0
22 19:15 NW 15 9.66 Fog/Mist OVC020 18 17 94% 76.35 0.0
22 18:55 NW 17 11.27 Mostly Cloudy FEW008 BKN020 17 17 100% 76.35 0.0
22 18:35 NW 11 11.27 A Few Clouds FEW009 FEW022 18 17 94% 76.35 0.0
22 18:15 NW 9 12.87 Fair CLR 18 17 94% 76.35 0.0
22 17:55 NW 11 14.48 Fair CLR 19 18 94% 76.38 0.0
22 17:35 W 9 14.48 Fair CLR 19 17 88% 76.38 0.0
22 17:15 NW 11 12.87 Fair CLR 19 17 88% 76.4 0.0
22 16:55 Vrbl 7 12.87 Fair CLR 19 17 88% 76.4 0.0
22 16:35 W 11 14.48 Fair CLR 18 18 100% 76.43 0.0
22 16:15 W 11 14.48 Fair CLR 18 17 94% 76.43 0.0
22 15:55 Vrbl 9 14.48 Fair CLR 19 17 88% 76.45 0.0
22 15:35 Vrbl 9 14.48 Fair CLR 0 0 0% 76.45 0.0
22 15:15 W 11 14.48 Fair CLR 19 17 88% 76.45 0.0
22 14:55 Vrbl 7 14.48 Fair CLR 19 17 88% 76.45 0.0
22 14:35 Vrbl 7 14.48 Fair CLR 20 17 83% 76.48 0.0
22 14:15 SW 11 14.48 A Few Clouds FEW020 19 17 88% 76.48 0.0
22 13:55 Vrbl 7 12.87 Mostly Cloudy BKN018 19 17 88% 76.48 0.0
22 13:35 SE 11 14.48 Overcast OVC018 19 17 88% 76.5 0.0
22 13:15 S 13 14.48 Mostly Cloudy FEW005 FEW015 BKN021 19 17 88% 76.5 0.0
22 12:55 S 13 12.87 Mostly Cloudy BKN005 18 17 94% 76.5 0.0
22 12:35 S 11 8.05 Fog/Mist BKN004 18 17 94% 76.5 0.0
22 12:15 S 17 12.87 Mostly Cloudy BKN005 18 17 94% 76.5 0.0
22 11:55 S 15 12.87 Mostly Cloudy BKN005 18 17 94% 76.5 0.0
22 11:35 S 15 4.02 Fog/Mist NULL 17 17 100% 76.5 0.0
22 11:15 S 17 1.61 Fog/Mist BKN003 OVC025 17 17 100% 76.48 0.0
22 10:55 S 19 6.44 Fog/Mist BKN003 BKN016 BKN025 17 17 100% 76.48 0.0
22 10:15 S 20 4.83 Fog/Mist BKN003 BKN014 17 17 100% 76.48 0.0
22 09:55 S 20 1.21 Fog/Mist OVC003 16 16 100% 76.45 0.0
22 09:35 S 20 6.44 Fog/Mist OVC003 16 16 100% 76.45 0.0
22 09:15 S 24 3.22 Fog/Mist OVC003 16 16 100% 76.43 0.0
22 08:55 S 19 G 28 0.80 Fog OVC003 16 16 100% 76.43 0.0
22 08:35 S 20 0.80 Fog/Mist OVC003 16 16 100% 76.43 0.0
22 08:15 S 17 1.61 Fog/Mist OVC003 16 16 100% 76.4 0.0
22 07:55 S 19 4.02 Fog/Mist FEW003 SCT007 BKN013 16 16 100% 76.38 0.0
22 07:35 S 20 8.05 Fog/Mist BKN003 BKN008 OVC013 16 16 100% 76.35 0.0
22 07:15 S 24 3.22 Fog/Mist OVC003 16 16 100% 76.35 0.0
22 06:55 S 20 0.40 Fog OVC002 16 16 100% 76.33 0.0
22 06:35 S 20 0.40 Fog OVC002 16 16 100% 76.33 0.0
22 06:15 S 20 1.61 Fog/Mist OVC002 16 16 100% 76.3 0.0
22 05:55 S 22 1.61 Fog/Mist OVC002 16 16 100% 76.3 0.0
22 05:35 S 22 G 31 2.41 Overcast OVC002 0 0 0% 76.28 0.0
22 05:15 S 22 2.82 Fog/Mist OVC002 16 16 100% 76.25 0.0
22 04:55 S 24 2.41 Fog/Mist OVC003 16 16 100% 76.25 0.0
22 04:35 S 24 9.66 Fog/Mist FEW005 OVC012 16 16 100% 76.23 0.0
22 04:15 S 28 11.27 Overcast OVC013 0 0 0% 76.2 0.0
22 03:55 S 26 12.87 Overcast SCT010 OVC015 16 16 100% 76.2 0.0
22 03:35 S 22 G 31 9.66 Fog/Mist BKN010 OVC017 16 16 100% 76.2 0.0
22 03:15 S 24 G 33 12.87 Overcast SCT010 OVC015 17 17 100% 76.17 0.0
22 02:55 S 22 11.27 Overcast OVC014 17 17 100% 76.2 0.0
22 02:35 S 22 G 37 12.87 Overcast OVC015 17 17 100% 76.17 0.0
22 02:15 S 33 12.87 Overcast and Breezy OVC016 17 17 100% 76.17 0.0
22 01:55 S 28 G 43 11.27 Overcast OVC015 17 17 100% 76.15 0.0
22 01:35 S 26 11.27 Overcast OVC014 17 17 100% 76.17 0.0
22 01:15 S 28 12.87 Overcast BKN014 OVC020 18 18 100% 76.17 0.0
22 00:55 S 28 G 39 11.27 Overcast OVC015 17 17 100% 76.17 0.0
22 00:35 S 28 11.27 Overcast OVC015 17 17 100% 76.17 0.0
22 00:15 S 26 G 37 9.66 Fog/Mist FEW003 OVC014 17 17 100% 76.17 0.0
21 23:55 SW 28 6.44 Fog/Mist BKN003 OVC014 17 17 100% 76.17 0.0
21 23:35 SW 24 8.05 Fog/Mist SCT003 OVC015 17 17 100% 76.17 0.0
21 23:15 SW 22 11.27 Overcast OVC017 17 17 100% 76.17 0.0
21 22:55 S 22 9.66 Fog/Mist NULL 17 17 100% 76.2 0.0
21 22:15 S 28 G 39 9.66 A Few Clouds FEW027 0 0 0% 76.17 0.0
21 21:55 S 26 G 37 14.48 Partly Cloudy FEW017 SCT024 18 18 100% 76.15 0.0
21 21:35 S 15 G 28 11.27 Mostly Cloudy SCT015 BKN019 BKN028 18 18 100% 76.12 0.0
21 21:15 S 22 11.27 Mostly Cloudy FEW010 SCT014 BKN028 18 18 100% 76.12 0.0
21 20:55 S 24 G 35 11.27 Overcast BKN009 BKN013 OVC029 0 0 0% 76.1 0.0
21 20:35 SE 15 G 30 11.27 Overcast OVC010 19 18 94% 76.1 0.0
21 20:15 S 17 G 35 11.27 Overcast OVC010 19 18 94% 76.07 0.0
21 19:55 SE 24 G 35 14.48 Overcast OVC011 20 18 88% 76.07 0.0
21 19:35 SE 19 G 30 12.87 Overcast OVC012 20 16 78% 76.07 0.0
21 19:15 SE 17 G 28 14.48 Mostly Cloudy BKN015 0 0 0% 76.05 0.0
21 18:55 SE 15 G 28 14.48 Fair CLR 22 10 47% 76.05 0.0
21 18:35 SE 13 16.09 Fair CLR 22 8 41% 76.02 0.0
21 18:15 SE 17 14.48 Fair CLR 24 6 31% 25 76 0.0
21 17:55 S 24 14.48 Fair CLR 24 6 31% 25 76 0.0
21 17:35 S 19 14.48 Fair CLR 24 6 31% 25 76 0.0
21 17:15 S 19 14.48 Fair CLR 25 6 30% 25 76 0.0
21 16:55 SE 13 16.09 Fair CLR 24 6 31% 25 76.02 0.0
21 16:35 SE 15 14.48 Fair CLR 24 6 31% 25 76.02 0.0
21 16:15 S 15 14.48 Fair CLR 26 5 26% 26 76.02 0.0
21 15:55 S 13 16.09 Fair CLR 25 6 30% 25 76.02 0.0
21 15:35 SE 13 14.48 Fair CLR 24 9 39% 25 76.05 0.0
21 15:15 S 13 16.09 Fair CLR 24 8 36% 25 76.05 0.0
21 14:55 S 19 14.48 Fair CLR 24 9 39% 25 76.05 0.0
21 14:35 S 15 14.48 Fair CLR 24 12 47% 25 76.07 0.0
21 14:15 S 15 12.87 Fair CLR 22 13 57% 76.07 0.0
21 13:55 S 15 12.87 Fair CLR 22 14 61% 76.1 0.0
21 13:35 SE 19 14.48 Fair CLR 23 13 53% 76.1 0.0
21 13:15 SE 19 14.48 Fair CLR 22 14 61% 76.12 0.0
21 12:55 S 17 12.87 Fair CLR 21 15 69% 76.12 0.0
21 12:35 S 13 14.48 Fair CLR 20 16 78% 76.12 0.0
21 12:15 SE 17 12.87 Fair CLR 21 15 69% 76.12 0.0
21 11:55 SE 17 11.27 Fair CLR 20 16 78% 76.12 0.0
21 11:35 S 15 G 24 12.87 Fair CLR 20 16 78% 76.15 0.0
21 11:15 S 15 G 24 12.87 Fair CLR 20 16 78% 76.12 0.0
21 10:55 SE 11 12.87 Fair CLR 20 16 78% 76.1 0.0
21 10:35 S 11 11.27 Fair CLR 18 16 88% 76.07 0.0
21 10:15 S 13 12.87 Fair CLR 19 16 83% 76.07 0.0
21 09:55 SE 9 11.27 Fair CLR 19 15 78% 76.1 0.0
21 09:35 S 6 8.05 Fair with Haze CLR 18 16 88% 76.07 0.0
21 09:15 S 9 8.05 Fair with Haze CLR 18 16 88% 76.07 0.0
21 08:55 Calm 8.05 Fog/Mist CLR 18 16 88% 76.05 0.0
21 08:35 Calm 8.05 Fog/Mist CLR 17 16 94% 76.05 0.0
21 08:15 S 7 6.44 Fog/Mist CLR 17 16 94% 76.05 0.0
21 07:55 S 6 6.44 Fog/Mist CLR 17 16 94% 76.02 0.0
21 07:35 Calm 6.44 Fog/Mist CLR 16 16 100% 76.02 0.0
21 07:15 Calm 4.83 Light Rain Fog/Mist CLR 15 15 100% 76.02 0.0
21 06:55 Calm 4.02 Fog/Mist CLR 15 15 100% 76 0.0
21 06:35 Calm 6.44 Fog/Mist CLR 15 15 100% 75.95 0.0
21 05:35 Calm 9.66 Fog/Mist CLR 14 14 100% 75.95 0.0
Date Time (pdt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)