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 01:55 S 11 14.48 Overcast OVC018 12 12 100% 76.25 0.0
24 01:35 S 13 14.48 Overcast OVC017 13 12 94% 76.23 0.0
24 01:15 S 13 14.48 Overcast OVC017 12 12 100% 76.25 0.0
24 00:55 S 17 14.48 Overcast OVC016 13 12 94% 76.25 0.0
24 00:35 S 15 14.48 Overcast OVC016 13 12 94% 76.23 0.0
24 00:15 S 17 14.48 Overcast OVC015 13 12 94% 76.23 0.0
23 23:55 S 22 16.09 Overcast OVC014 13 12 94% 76.23 0.0
23 23:35 S 20 14.48 Overcast OVC013 0 0 0% 76.23 0.0
23 23:15 S 19 14.48 Overcast OVC013 13 12 94% 76.23 0.0
23 22:55 S 19 14.48 Overcast OVC014 0 0 0% 76.23 0.0
23 22:35 S 17 14.48 Overcast OVC014 13 12 94% 76.23 0.0
23 22:15 S 19 16.09 Overcast OVC014 13 12 94% 76.2 0.0
23 21:55 S 17 14.48 Overcast OVC014 13 12 94% 76.2 0.0
23 21:35 S 17 14.48 Overcast OVC014 13 12 94% 76.17 0.0
23 21:15 S 19 14.48 Overcast OVC015 13 12 94% 76.17 0.0
23 20:55 S 17 G 26 14.48 Overcast OVC015 13 12 94% 76.17 0.0
23 20:35 S 17 14.48 Overcast OVC015 13 12 94% 76.15 0.0
23 20:15 S 19 G 28 12.87 Overcast OVC015 13 12 94% 76.12 0.0
23 19:55 S 17 G 26 14.48 Overcast OVC015 13 12 94% 76.12 0.0
23 19:35 S 20 12.87 Overcast OVC015 14 12 88% 76.12 0.0
23 19:15 S 19 14.48 Overcast OVC016 14 12 88% 76.12 0.0
23 18:55 S 17 12.87 Overcast OVC016 14 12 88% 76.12 0.0
23 18:35 S 15 12.87 Overcast OVC017 14 13 94% 76.12 0.0
23 18:15 S 17 12.87 Overcast OVC018 15 13 88% 76.12 0.0
23 17:55 S 15 11.27 Overcast OVC020 15 13 88% 76.12 0.0
23 17:35 S 17 11.27 Mostly Cloudy BKN022 15 13 88% 76.12 0.0
23 17:15 S 17 9.66 Fog/Mist SCT018 15 14 94% 76.12 0.0
23 16:55 S 19 8.05 Fog/Mist SCT019 SCT024 15 14 94% 76.12 0.0
23 16:35 S 19 9.66 Fog/Mist SCT018 BKN024 16 14 88% 76.12 0.0
23 16:15 S 24 11.27 Overcast OVC018 15 13 88% 76.12 0.0
23 15:55 S 22 9.66 Fog/Mist OVC018 15 13 88% 76.15 0.0
23 15:35 S 22 9.66 Fog/Mist BKN018 15 13 88% 76.15 0.0
23 15:15 S 20 9.66 A Few Clouds FEW018 0 0 0% 76.15 0.0
23 14:55 S 20 G 31 9.66 Partly Cloudy SCT018 SCT025 0 0 0% 76.15 0.0
23 14:35 S 20 G 31 9.66 Fog/Mist SCT016 BKN025 15 13 88% 76.17 0.0
23 14:15 S 26 0.00 Overcast OVC024 15 13 88% 76.17 0.0
23 13:55 Vrbl 22 G 35 0.40 Overcast with Haze OVC023 16 13 83% 76.17 0.0
23 13:35 S 24 9.66 Fog/Mist OVC023 15 13 88% 76.17 0.0
23 13:15 S 26 G 37 9.66 Fog/Mist OVC022 15 13 88% 76.17 0.0
23 12:55 S 28 12.87 Overcast OVC022 15 13 88% 76.15 0.0
23 12:35 S 24 G 35 12.87 Overcast OVC021 15 13 88% 76.15 0.0
23 12:15 S 24 G 35 12.87 Overcast OVC020 15 13 88% 76.15 0.0
23 11:55 S 28 12.87 Overcast OVC019 15 13 88% 76.15 0.0
23 11:35 S 24 12.87 Overcast OVC017 15 13 88% 76.15 0.0
23 11:15 S 26 14.48 Overcast OVC016 14 13 94% 76.15 0.0
23 10:55 S 22 12.87 Overcast OVC015 14 13 94% 76.12 0.0
23 10:35 S 20 G 33 14.48 Overcast OVC015 14 13 94% 76.12 0.0
23 10:15 S 20 G 31 11.27 Overcast OVC014 0 0 0% 76.12 0.0
23 09:55 S 20 G 31 9.66 Fog/Mist OVC014 13 13 100% 76.12 0.0
23 09:35 S 20 G 33 8.05 Fog/Mist OVC013 13 13 100% 76.12 0.0
23 09:15 S 22 8.05 Fog/Mist OVC013 13 13 100% 76.1 0.0
23 08:55 S 22 9.66 Fog/Mist OVC013 13 13 100% 76.07 0.0
23 08:35 S 30 8.05 Fog/Mist OVC013 13 12 94% 76.07 0.0
23 08:15 S 26 8.05 Fog/Mist OVC014 13 12 94% 76.05 0.0
23 07:55 S 20 G 31 8.05 Fog/Mist OVC014 13 13 100% 76.05 0.0
23 07:35 S 28 8.05 Fog/Mist FEW006 FEW009 OVC014 12 12 100% 76.02 0.0
23 07:15 S 20 4.02 Fog/Mist SCT006 OVC013 12 12 100% 76.02 0.0
23 06:55 S 17 G 28 4.83 Fog/Mist OVC012 12 12 100% 76 0.0
23 06:35 S 17 8.05 Fog/Mist OVC012 12 12 100% 75.97 0.0
23 06:15 S 19 G 31 11.27 Overcast OVC012 12 12 100% 75.97 0.0
23 05:55 S 19 G 30 8.05 Fog/Mist OVC011 12 12 100% 75.97 0.0
23 05:35 S 20 9.66 Fog/Mist OVC011 12 12 100% 75.95 0.0
23 05:15 S 20 8.05 Fog/Mist FEW006 OVC012 12 12 100% 75.95 0.0
23 04:55 S 19 6.44 Fog/Mist BKN009 OVC012 12 12 100% 75.95 0.0
23 04:35 S 19 8.05 Fog/Mist BKN009 OVC012 12 12 100% 75.95 0.0
23 04:15 S 17 9.66 Fog/Mist OVC011 12 12 100% 75.92 0.0
23 03:55 S 20 9.66 Fog/Mist OVC010 12 12 100% 75.92 0.0
23 03:35 S 19 11.27 Overcast OVC011 12 12 100% 75.92 0.0
23 03:15 S 19 12.87 Overcast OVC011 12 12 100% 75.92 0.0
23 02:55 S 19 12.87 Overcast OVC011 12 12 100% 75.92 0.0
23 02:35 S 19 12.87 Overcast OVC011 12 12 100% 75.92 0.0
23 02:15 S 15 G 26 12.87 Overcast OVC011 12 12 100% 75.92 0.0
23 01:55 S 17 9.66 Fog/Mist OVC011 12 12 100% 75.92 0.0
23 01:35 S 19 11.27 Overcast OVC011 12 12 100% 75.92 0.0
23 01:15 S 19 11.27 Overcast OVC011 0 0 0% 75.92 0.0
23 00:55 S 17 9.66 Fog/Mist OVC011 12 12 100% 75.92 0.0
23 00:35 S 15 9.66 Fog/Mist OVC011 12 12 100% 75.92 0.0
23 00:15 S 17 11.27 Overcast OVC011 12 12 100% 75.92 0.0
22 23:55 S 17 11.27 Overcast OVC011 12 12 100% 75.92 0.0
22 23:35 S 17 11.27 Overcast OVC011 12 12 100% 75.92 0.0
22 23:15 S 15 11.27 Overcast OVC010 12 12 100% 75.92 0.0
22 22:55 S 17 9.66 Fog/Mist OVC009 12 12 100% 75.92 0.0
22 22:35 S 17 11.27 Overcast OVC009 12 12 100% 75.92 0.0
22 22:15 S 15 11.27 Overcast OVC010 13 12 94% 75.92 0.0
22 21:55 S 17 11.27 Overcast OVC011 13 12 94% 75.92 0.0
22 21:35 S 19 9.66 Fog/Mist OVC011 13 13 100% 75.9 0.0
22 21:15 S 17 9.66 Fog/Mist OVC012 13 13 100% 75.9 0.0
22 20:55 S 17 9.66 Fog/Mist OVC012 13 13 100% 75.9 0.0
22 20:35 S 17 11.27 Overcast OVC012 13 13 100% 75.9 0.0
22 20:15 S 15 11.27 Overcast OVC013 13 13 100% 75.87 0.0
22 19:55 S 15 12.87 Overcast OVC013 13 13 100% 75.87 0.0
22 19:35 S 13 12.87 Overcast OVC012 13 13 100% 75.87 0.0
22 19:15 S 15 11.27 Overcast OVC012 13 13 100% 75.84 0.0
22 18:55 S 15 14.48 Overcast OVC013 13 13 100% 75.84 0.0
22 18:35 S 17 12.87 Overcast OVC013 13 13 100% 75.84 0.0
22 18:15 S 17 12.87 Overcast OVC013 13 13 100% 75.84 0.0
22 17:55 S 15 14.48 Overcast OVC012 13 13 100% 75.84 0.0
22 17:35 S 17 8.05 Fog/Mist OVC013 14 13 94% 75.84 0.0
22 17:15 S 17 14.48 Overcast OVC013 0 0 0% 75.84 0.0
22 16:55 S 15 14.48 Overcast OVC013 13 13 100% 75.84 0.0
22 16:35 S 17 16.09 Overcast OVC013 14 13 94% 75.84 0.0
22 16:15 S 15 14.48 Overcast OVC012 14 13 94% 75.84 0.0
22 15:55 S 15 14.48 Overcast OVC012 14 13 94% 75.84 0.0
22 15:35 S 15 14.48 Overcast OVC012 0 0 0% 75.87 0.0
22 15:15 S 17 14.48 Overcast OVC012 14 13 94% 75.87 0.0
22 14:55 S 17 14.48 Overcast OVC012 14 13 94% 75.87 0.0
22 14:35 S 17 12.87 Overcast OVC012 14 13 94% 75.87 0.0
22 14:15 S 19 14.48 Overcast OVC011 14 13 94% 75.87 0.0
22 13:55 SW 15 14.48 Mostly Cloudy BKN011 14 13 94% 75.87 0.0
22 13:35 S 13 16.09 Mostly Cloudy BKN011 14 13 94% 75.87 0.0
22 13:15 S 15 16.09 Overcast OVC011 14 13 94% 75.87 0.0
22 12:55 S 17 14.48 Mostly Cloudy BKN011 14 13 94% 75.87 0.0
22 12:35 S 17 14.48 Overcast OVC012 14 13 94% 75.9 0.0
22 12:15 S 17 14.48 Mostly Cloudy BKN013 14 13 94% 75.9 0.0
22 11:55 S 17 16.09 A Few Clouds FEW012 13 12 94% 75.9 0.0
22 11:35 SE 13 14.48 Fair CLR 13 12 94% 75.9 0.0
22 11:15 S 17 12.87 A Few Clouds FEW007 13 12 94% 75.87 0.0
22 10:55 SE 20 12.87 Partly Cloudy SCT007 12 12 100% 75.87 0.0
22 10:35 SE 17 11.27 Partly Cloudy SCT007 12 12 100% 75.87 0.0
22 10:15 SE 15 8.05 Mostly Cloudy BKN006 0 0 0% 75.9 0.0
22 09:55 SE 13 6.44 Overcast OVC006 0 0 0% 75.9 0.0
22 09:35 SE 15 4.02 Fog/Mist OVC006 11 11 100% 75.87 0.0
22 09:15 SE 11 4.83 Fog/Mist OVC005 10 10 100% 9 75.87 0.0
22 08:55 SE 13 4.83 Fog/Mist OVC005 10 10 100% 8 75.87 0.0
22 08:35 S 13 2.82 Fog/Mist OVC004 10 10 100% 8 75.87 0.0
22 08:15 SE 13 3.22 Fog/Mist OVC004 10 10 100% 8 75.84 0.0
22 07:55 S 13 2.41 Fog/Mist OVC003 10 10 100% 8 75.84 0.0
22 07:35 SE 11 2.41 Fog/Mist OVC003 10 10 100% 9 75.82 0.0
22 06:55 SE 11 4.02 Fog/Mist OVC003 9 9 100% 8 75.82 0.0
22 06:35 SE 13 4.02 Fog/Mist OVC003 9 9 100% 7 75.79 0.0
22 06:15 S 15 4.83 Fog/Mist OVC003 9 9 100% 7 75.79 0.0
22 05:35 SE 11 4.02 Fog/Mist OVC003 10 10 100% 9 75.79 0.0
22 05:15 SE 11 3.22 Fog/Mist OVC003 10 10 100% 9 75.79 0.0
22 04:55 SE 11 4.83 Fog/Mist OVC003 10 10 100% 9 75.79 0.0
22 04:35 SE 9 4.83 Fog/Mist OVC003 10 10 100% 9 75.82 0.0
22 04:15 SE 13 2.82 Fog/Mist OVC003 10 10 100% 8 75.82 0.0
22 03:55 SE 13 2.41 Fog/Mist OVC003 10 10 100% 8 75.82 0.0
22 03:35 SE 13 2.41 Fog/Mist OVC003 10 10 100% 8 75.82 0.0
22 03:15 S 9 2.82 Fog/Mist OVC003 10 10 100% 9 75.82 0.0
22 02:55 S 13 3.22 Fog/Mist OVC003 10 10 100% 8 75.82 0.0
22 02:35 S 13 1.21 Fog/Mist OVC002 10 10 100% 8 75.84 0.0
22 02:15 S 9 1.61 Fog/Mist OVC002 10 10 100% 9 75.84 0.0
22 01:55 SE 7 1.61 Fog/Mist OVC002 10 10 100% 9 75.84 0.0
22 01:35 SW 6 0.40 Fog OVC002 10 10 100% 75.84 0.0
22 01:15 S 6 0.40 Fog OVC002 10 10 100% 75.84 0.0
22 00:55 SW 7 0.40 Fog OVC002 10 10 100% 9 75.84 0.0
22 00:35 SE 7 0.40 Fog OVC002 10 10 100% 9 75.84 0.0
22 00:15 Calm 0.40 Overcast OVC002 0 0 0% 75.84 0.0
21 23:55 SW 6 1.21 Fog/Mist OVC002 10 10 100% 75.87 0.0
21 23:35 Calm 1.21 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 23:15 Calm 2.01 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 22:55 Calm 1.61 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 22:35 W 6 1.21 Fog/Mist OVC002 10 10 100% 75.92 0.0
21 22:15 Calm 2.01 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 21:55 Calm 1.21 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 21:35 Calm 1.61 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 21:15 Calm 2.41 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 20:55 Calm 2.41 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 20:35 W 6 2.41 Fog/Mist OVC002 10 10 100% 75.9 0.0
21 20:15 W 7 1.21 Fog/Mist OVC002 11 11 100% 75.87 0.0
21 19:55 Calm 3.22 Fog/Mist OVC003 11 11 100% 75.87 0.0
21 19:35 Calm 1.61 Fog/Mist OVC003 11 11 100% 75.87 0.0
21 19:15 NW 6 3.22 Fog/Mist OVC003 11 11 100% 75.87 0.0
21 18:55 NW 7 3.22 Fog/Mist OVC003 11 11 100% 75.87 0.0
21 18:35 NW 9 4.83 Fog/Mist OVC003 11 11 100% 75.9 0.0
21 18:15 NW 9 4.02 Fog/Mist OVC004 11 11 100% 75.9 0.0
21 17:55 NW 7 4.83 Fog/Mist OVC004 11 11 100% 75.92 0.0
21 17:35 NW 7 4.83 Fog/Mist OVC004 12 12 100% 75.92 0.0
21 17:15 NW 13 4.83 Overcast OVC004 0 0 0% 75.92 0.0
21 16:55 NW 11 4.83 Fog/Mist OVC004 12 12 100% 75.92 0.0
21 16:35 NW 13 4.83 Fog/Mist OVC005 12 12 100% 75.95 0.0
21 16:15 W 9 4.83 Fog/Mist OVC005 12 12 100% 75.95 0.0
21 15:55 W 11 4.83 Fog/Mist OVC004 12 12 100% 75.97 0.0
21 15:35 W 13 4.83 Fog/Mist OVC005 12 12 100% 75.97 0.0
21 15:20 NW 9 6.44 Fog/Mist OVC006 13 12 94% 75.97 0.0
21 14:43 W 13 6.44 Fog/Mist BKN006 12 12 100% 76 0.0
21 14:25 W 11 6.44 Fog/Mist BKN005 13 12 94% 76 0.0
21 14:06 W 11 4.83 Fog/Mist BKN005 12 12 100% 76.02 0.0
21 13:43 W 11 4.83 Fog/Mist SCT004 12 12 100% 76 0.0
21 13:28 W 13 4.83 Fog/Mist BKN005 12 12 100% 76 0.0
21 13:03 W 11 4.83 Fog/Mist FEW005 13 12 94% 76.02 0.0
21 12:45 W 13 4.83 Fog/Mist FEW006 12 12 100% 76.02 0.0
21 12:27 W 11 4.02 Fog/Mist FEW006 13 12 94% 76.02 0.0
21 12:07 W 13 4.02 Fog/Mist SCT005 13 12 94% 76.02 0.0
21 11:45 SW 13 3.22 Fog/Mist SCT005 13 12 94% 76.02 0.0
21 11:25 W 11 3.22 Fog/Mist SCT007 12 12 100% 76.02 0.0
21 11:08 W 9 3.22 Fog/Mist SCT007 12 12 100% 76.02 0.0
21 10:47 W 7 3.22 Fog/Mist BKN006 12 12 100% 76.05 0.0
21 10:05 SW 9 1.61 Overcast OVC005 11 11 100% 76.05 0.0
21 09:45 SW 7 1.61 Overcast OVC005 11 11 100% 76.05 0.0
21 09:28 SW 6 3.22 Fog/Mist OVC005 11 11 100% 76.05 0.0
21 09:07 Calm 3.22 Fog/Mist OVC005 11 11 100% 76.05 0.0
21 08:45 SE 6 2.82 Fog/Mist OVC004 11 11 100% 76.02 0.0
21 08:07 Vrbl 6 0.40 Fog OVC003 10 10 100% 76.02 0.0
21 07:50 Calm 0.40 Fog OVC003 10 10 100% 76 0.0
21 07:27 SE 9 0.00 Fog/Mist OVC003 10 10 100% 9 76 0.0
21 07:09 SE 7 1.61 Fog/Mist OVC003 10 10 100% 9 75.97 0.0
21 06:41 E 7 0.80 Fog OVC003 10 10 100% 9 75.97 0.0
21 06:22 E 7 0.00 Fog/Mist OVC003 10 10 100% 9 75.97 0.0
21 06:02 E 9 2.01 Fog/Mist OVC002 10 10 100% 9 75.97 0.0
21 05:42 E 9 1.21 Fog/Mist OVC002 9 9 100% 8 75.95 0.0
21 05:22 NE 7 1.21 Fog/Mist OVC002 9 9 100% 8 75.95 0.0
21 05:02 E 6 16.09 Fog OVC002 10 10 100% 0 0.0
21 04:41 SE 6 0.80 Fog OVC002 10 10 100% 75.95 0.0
21 04:22 Calm 0.40 Fog OVC002 10 10 100% 75.95 0.0
21 04:02 SE 7 0.40 Fog OVC002 10 10 100% 9 75.95 0.0
21 03:44 Vrbl 6 0.40 Fog OVC002 10 10 100% 75.95 0.0
21 03:24 SE 9 0.40 Fog OVC002 10 10 100% 9 75.97 0.0
21 02:49 Vrbl 6 0.40 Fog OVC002 10 10 100% 0 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)