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.
13 12:35 NW 19 G 30 12.87 Partly Cloudy SCT017 16 13 83% 76.66 0.0
13 12:15 NW 30 G 41 14.48 Fair CLR 16 12 77% 76.66 0.0
13 11:55 NW 22 12.87 A Few Clouds FEW014 15 12 82% 76.66 0.0
13 11:35 NW 20 G 30 12.87 Partly Cloudy SCT014 15 13 88% 76.66 0.0
13 11:15 NW 22 9.66 Fog/Mist BKN014 15 13 88% 76.66 0.0
13 10:55 NW 19 11.27 Overcast OVC013 15 13 88% 76.66 0.0
13 10:35 NW 17 12.87 Overcast OVC013 15 13 88% 76.66 0.0
13 10:15 NW 19 11.27 Overcast OVC013 14 13 94% 76.63 0.0
13 09:55 NW 17 12.87 Overcast OVC013 14 13 94% 76.63 0.0
13 09:35 NW 20 12.87 Overcast OVC013 14 13 94% 76.61 0.0
13 09:15 NW 17 G 28 11.27 Overcast OVC013 14 13 94% 76.61 0.0
13 08:55 NW 22 11.27 Overcast OVC012 13 13 100% 76.58 0.0
13 08:35 NW 20 G 31 11.27 Mostly Cloudy BKN012 13 13 100% 76.56 0.0
13 08:15 NW 17 9.66 Fog/Mist BKN009 BKN013 13 13 100% 76.56 0.0
13 07:55 NW 17 8.05 Fog/Mist OVC009 13 13 100% 76.53 0.0
13 07:35 NW 15 9.66 Overcast OVC007 0 0 0% 76.53 0.0
13 07:15 NW 13 9.66 Fog/Mist OVC007 13 13 100% 76.5 0.0
13 06:55 NW 17 9.66 Fog/Mist OVC005 12 12 100% 76.5 0.0
13 06:35 NW 15 9.66 Fog/Mist OVC004 12 12 100% 76.5 0.0
13 06:15 NW 20 4.83 Fog/Mist OVC004 12 12 100% 76.48 0.0
13 05:55 NW 17 11.27 Overcast OVC007 13 13 100% 76.45 0.0
13 05:35 Calm 14.48 Overcast OVC009 0 0 0% 76.45 0.0
13 05:15 Calm 14.48 Overcast OVC009 13 13 100% 76.45 0.0
13 04:55 Calm 11.27 Overcast OVC010 13 13 100% 76.45 0.0
13 04:35 Calm 12.87 Overcast BKN009 BKN013 OVC023 13 13 100% 76.45 0.0
13 04:15 Calm 16.09 Overcast OVC009 13 13 100% 76.43 0.0
13 03:55 NW 9 14.48 Overcast BKN007 OVC011 13 13 100% 76.43 0.0
13 03:35 NW 11 G 28 6.44 Fog/Mist OVC005 13 13 100% 76.43 0.0
13 03:15 NW 19 11.27 Overcast OVC005 13 13 100% 76.43 0.0
13 02:55 NW 20 14.48 Overcast OVC007 13 13 100% 76.43 0.0
13 02:35 NW 9 G 20 14.48 Overcast OVC009 13 13 100% 76.43 0.0
13 01:55 Calm 11.27 Overcast OVC010 13 13 100% 76.4 0.0
13 01:35 Calm 12.87 Overcast OVC009 13 13 100% 76.4 0.0
13 01:15 Calm 9.66 Fog/Mist OVC009 13 13 100% 76.4 0.0
13 00:55 S 7 9.66 Fog/Mist OVC009 13 13 100% 76.4 0.0
13 00:35 Calm 11.27 Overcast OVC009 13 13 100% 76.38 0.0
13 00:15 Calm 6.44 Fog/Mist OVC009 13 13 100% 76.38 0.0
12 23:55 Calm 9.66 Fog/Mist OVC010 13 13 100% 76.38 0.0
12 23:35 Calm 11.27 Overcast OVC010 13 13 100% 76.35 0.0
12 23:15 W 7 11.27 Overcast OVC010 13 13 100% 76.35 0.0
12 22:55 NW 11 14.48 Overcast OVC010 13 13 100% 76.35 0.0
12 22:35 NW 9 14.48 Overcast OVC009 13 13 100% 76.33 0.0
12 22:15 NW 9 12.87 Overcast OVC008 13 13 100% 76.3 0.0
12 21:55 NW 17 11.27 Overcast OVC008 13 13 100% 76.28 0.0
12 21:35 NW 19 12.87 Overcast OVC006 13 13 100% 76.25 0.0
12 21:15 NW 17 12.87 Overcast OVC006 13 13 100% 76.25 0.0
12 20:55 NW 20 G 30 12.87 Overcast OVC008 13 13 100% 76.25 0.0
12 20:35 NW 22 14.48 Overcast BKN008 OVC013 13 13 100% 76.23 0.0
12 20:15 NW 24 11.27 Overcast OVC011 13 13 100% 76.23 0.0
12 19:55 NW 26 11.27 Overcast OVC012 13 13 100% 76.2 0.0
12 19:35 NW 20 11.27 Overcast OVC012 13 13 100% 76.2 0.0
12 19:15 NW 20 11.27 Overcast OVC011 13 13 100% 76.17 0.0
12 18:55 NW 11 11.27 Overcast OVC012 0 0 0% 76.17 0.0
12 18:35 NW 9 11.27 Overcast OVC012 13 13 100% 76.17 0.0
12 18:15 NW 17 11.27 Overcast OVC013 14 13 94% 76.17 0.0
12 17:55 NW 15 11.27 Mostly Cloudy BKN013 14 13 94% 76.17 0.0
12 17:35 NW 15 12.87 Mostly Cloudy BKN013 14 13 94% 76.17 0.0
12 17:15 NW 15 14.48 Overcast OVC013 14 12 88% 76.15 0.0
12 16:55 NW 17 11.27 Overcast OVC013 14 13 94% 76.17 0.0
12 16:35 NW 19 12.87 Overcast OVC013 13 12 94% 76.17 0.0
12 16:15 N 17 12.87 Overcast OVC013 14 12 88% 76.2 0.0
12 15:55 NW 19 12.87 Overcast OVC013 13 12 94% 76.2 0.0
12 15:15 NW 19 11.27 Mostly Cloudy SCT009 BKN013 13 12 94% 76.23 0.0
12 14:55 NW 17 9.66 Fog/Mist SCT009 BKN013 13 13 100% 76.2 0.0
12 14:35 NW 19 11.27 Mostly Cloudy SCT008 BKN013 13 13 100% 76.2 0.0
12 14:15 NW 20 11.27 Mostly Cloudy SCT008 BKN013 13 13 100% 76.2 0.0
12 13:55 W 13 14.48 Mostly Cloudy FEW008 BKN013 14 13 94% 76.2 0.0
12 13:35 NW 13 14.48 Mostly Cloudy BKN012 14 13 94% 76.2 0.0
12 13:15 NW 17 14.48 Partly Cloudy SCT012 14 13 94% 76.2 0.0
12 12:55 NW 13 14.48 Partly Cloudy SCT012 14 13 94% 76.23 0.0
12 12:35 N 15 16.09 Partly Cloudy SCT012 14 13 94% 76.23 0.0
12 12:15 NW 11 14.48 Mostly Cloudy BKN012 13 13 100% 76.25 0.0
12 11:55 Vrbl 9 14.48 Partly Cloudy SCT012 13 13 100% 76.25 0.0
12 11:35 NW 11 11.27 Mostly Cloudy SCT007 BKN013 0 0 0% 76.25 0.0
12 11:15 NW 13 6.44 Fog/Mist BKN007 BKN013 12 12 100% 76.25 0.0
12 10:55 NW 11 11.27 Partly Cloudy SCT008 SCT013 13 13 100% 76.23 0.0
12 10:35 N 11 12.87 Mostly Cloudy BKN006 BKN012 12 12 100% 76.23 0.0
12 10:15 NW 13 8.05 Fog/Mist OVC006 12 12 100% 76.2 0.0
12 09:55 N 13 6.44 Fog/Mist OVC005 12 12 100% 76.17 0.0
12 09:35 Vrbl 11 8.05 Fog/Mist OVC005 12 12 100% 76.17 0.0
12 09:15 N 9 8.05 Fog/Mist OVC005 12 12 100% 76.17 0.0
12 08:55 N 9 9.66 Fog/Mist OVC005 11 11 100% 76.15 0.0
12 08:35 NW 9 11.27 Overcast OVC005 11 11 100% 76.15 0.0
12 08:15 NW 7 11.27 Overcast OVC005 11 11 100% 76.15 0.0
12 07:55 W 9 11.27 Overcast OVC004 11 11 100% 76.15 0.0
12 07:35 Calm 9.66 Fog/Mist OVC004 11 11 100% 76.12 0.0
12 07:15 Calm 4.83 Fog/Mist OVC004 0 0 0% 0 0.0
12 06:15 NW 7 11.27 Overcast OVC003 11 11 100% 76.1 0.0
12 05:55 Calm 4.83 Fog/Mist OVC003 11 11 100% 76.1 0.0
12 05:35 Calm 6.44 Fog/Mist OVC003 11 11 100% 76.07 0.0
12 05:15 Calm 4.83 Fog/Mist OVC003 11 11 100% 76.07 0.0
12 04:55 Calm 4.83 Fog/Mist OVC003 11 11 100% 76.07 0.0
12 04:35 Calm 4.83 Fog/Mist OVC003 11 11 100% 76.1 0.0
12 04:15 Calm 4.02 Fog/Mist OVC003 11 11 100% 76.07 0.0
12 03:35 Calm 8.05 Fog/Mist OVC003 11 11 100% 76.07 0.0
12 03:15 Calm 2.41 Fog/Mist OVC002 11 11 100% 76.1 0.0
12 02:55 Calm 3.22 Fog/Mist OVC003 10 10 100% 76.1 0.0
12 02:35 NW 7 4.83 Fog/Mist OVC003 10 10 100% 9 76.1 0.0
12 02:15 Calm 4.02 Overcast OVC003 0 0 0% 76.1 0.0
12 01:15 Calm 4.83 Fog/Mist OVC003 11 11 100% 76.15 0.0
12 00:55 Calm 4.83 Fog/Mist OVC003 11 11 100% 76.17 0.0
12 00:35 Calm 4.02 Fog/Mist OVC003 11 11 100% 76.17 0.0
12 00:15 Calm 4.02 Fog/Mist OVC003 11 11 100% 76.17 0.0
11 23:55 Calm 3.22 Overcast OVC003 0 0 0% 76.17 0.0
11 23:35 Calm 3.22 Fog/Mist OVC003 11 11 100% 76.17 0.0
11 23:15 S 7 3.22 Fog/Mist OVC003 11 11 100% 76.17 0.0
11 22:55 Calm 2.82 Fog/Mist OVC003 11 11 100% 76.2 0.0
11 22:35 SW 7 2.01 Fog/Mist OVC002 11 11 100% 76.2 0.0
11 22:15 SW 7 1.61 Fog/Mist OVC002 11 11 100% 76.2 0.0
11 21:55 SW 6 1.21 Fog/Mist OVC002 11 11 100% 76.17 0.0
11 21:35 W 7 2.01 Fog/Mist OVC002 11 11 100% 76.17 0.0
11 20:55 Calm 2.41 Fog/Mist OVC003 11 11 100% 76.15 0.0
11 20:35 Vrbl 7 11.27 Overcast OVC003 12 12 100% 76.12 0.0
11 20:15 S 7 8.05 Fog/Mist OVC003 12 12 100% 76.12 0.0
11 19:55 S 11 3.22 Fog/Mist OVC003 12 12 100% 76.1 0.0
11 19:35 S 13 2.82 Fog/Mist OVC003 12 12 100% 76.1 0.0
11 19:15 S 15 4.83 Fog/Mist OVC003 12 12 100% 76.07 0.0
11 18:55 S 9 11.27 Overcast OVC004 13 13 100% 76.07 0.0
11 18:35 S 15 14.48 Overcast OVC004 13 13 100% 76.07 0.0
11 18:15 S 13 12.87 Overcast OVC005 13 13 100% 76.07 0.0
11 17:55 S 13 11.27 Overcast OVC004 13 13 100% 76.07 0.0
11 17:35 S 13 9.66 Fog/Mist OVC005 13 13 100% 76.1 0.0
11 17:15 S 15 9.66 Fog/Mist OVC005 14 14 100% 76.07 0.0
11 16:55 S 13 11.27 Overcast OVC006 14 14 100% 76.1 0.0
11 16:35 S 15 12.87 Overcast OVC006 14 14 100% 76.1 0.0
11 16:15 S 13 9.66 Fog/Mist OVC006 14 14 100% 76.07 0.0
11 15:55 S 15 8.05 Fog/Mist BKN005 14 14 100% 76.1 0.0
11 15:35 S 17 9.66 Fog/Mist BKN005 15 14 94% 76.1 0.0
11 15:15 S 17 G 26 8.05 Fog/Mist BKN005 14 14 100% 76.1 0.0
11 14:55 S 17 9.66 Fog/Mist BKN005 15 14 94% 76.12 0.0
11 14:35 S 17 9.66 Fog/Mist SCT005 14 14 100% 76.12 0.0
11 14:15 S 17 8.05 Fog/Mist SCT005 14 14 100% 76.12 0.0
11 13:55 S 15 9.66 Fog/Mist FEW006 14 14 100% 76.15 0.0
11 13:35 S 17 11.27 A Few Clouds FEW006 15 14 94% 76.12 0.0
11 13:15 S 15 9.66 Fog/Mist NULL 15 14 94% 76.12 0.0
11 12:55 S 17 0.00 NULL NULL 0 0 0% 76.12 0.0
11 12:35 S 17 9.66 A Few Clouds FEW007 0 0 0% 76.15 0.0
11 12:15 S 17 11.27 Mostly Cloudy BKN005 14 14 100% 76.15 0.0
11 11:55 S 19 9.66 Fog/Mist BKN004 13 13 100% 76.17 0.0
11 11:35 S 20 6.44 Fog/Mist SCT005 13 13 100% 76.17 0.0
11 11:15 S 19 8.05 Fog/Mist SCT007 14 14 100% 76.17 0.0
11 10:55 S 20 6.44 Fog/Mist BKN006 13 13 100% 76.15 0.0
11 10:35 S 17 4.02 Fog/Mist BKN004 13 13 100% 76.15 0.0
11 10:15 S 19 4.83 Fog/Mist BKN004 13 13 100% 76.15 0.0
11 09:55 S 17 4.83 Fog/Mist OVC005 12 12 100% 76.15 0.0
11 09:35 S 17 4.83 Fog/Mist OVC004 12 12 100% 76.15 0.0
11 09:15 SE 15 3.22 Fog/Mist OVC003 12 12 100% 76.15 0.0
11 08:55 SE 15 2.01 Fog/Mist OVC003 12 12 100% 76.15 0.0
11 08:35 SE 15 2.01 Fog/Mist OVC003 12 12 100% 76.15 0.0
11 08:15 SE 15 1.61 Fog/Mist OVC003 11 11 100% 76.15 0.0
11 07:55 SE 13 1.61 Fog/Mist OVC003 11 11 100% 76.15 0.0
11 07:35 SE 13 1.61 Fog/Mist OVC003 11 11 100% 76.15 0.0
11 07:15 SE 13 1.61 Fog/Mist OVC003 11 11 100% 76.15 0.0
11 06:55 SE 11 1.21 Fog/Mist OVC003 11 11 100% 76.12 0.0
11 06:35 SE 13 1.21 Overcast OVC003 0 0 0% 76.12 0.0
11 06:15 SE 13 2.01 Fog/Mist OVC003 11 11 100% 76.12 0.0
11 05:55 SE 13 2.41 Fog/Mist OVC003 11 11 100% 76.12 0.0
11 05:35 SE 11 3.22 Fog/Mist OVC003 11 11 100% 76.1 0.0
11 05:15 SE 11 3.22 Fog/Mist OVC003 11 11 100% 76.1 0.0
11 04:55 SE 13 4.02 Fog/Mist OVC003 11 11 100% 76.1 0.0
11 04:35 SE 11 4.02 Fog/Mist OVC003 11 11 100% 76.1 0.0
11 04:15 SE 9 4.02 Fog/Mist OVC003 11 11 100% 76.1 0.0
11 03:55 SE 11 4.83 Fog/Mist OVC004 11 11 100% 76.1 0.0
11 03:35 SE 9 4.83 Fog/Mist OVC004 11 11 100% 76.1 0.0
11 03:15 SE 9 4.83 Fog/Mist OVC005 12 12 100% 76.1 0.0
11 02:55 SE 11 4.83 Fog/Mist OVC005 12 12 100% 76.12 0.0
11 02:35 SE 9 6.44 Fog/Mist OVC005 12 12 100% 76.12 0.0
11 02:15 SE 9 8.05 Fog/Mist OVC005 12 12 100% 76.1 0.0
11 01:55 SE 9 8.05 Fog/Mist OVC006 12 12 100% 76.12 0.0
11 01:35 SE 11 8.05 Fog/Mist OVC006 12 12 100% 76.12 0.0
11 01:15 SE 9 6.44 Overcast OVC006 0 0 0% 76.12 0.0
11 00:55 SE 7 6.44 Fog/Mist OVC007 12 12 100% 76.12 0.0
11 00:35 Calm 6.44 Fog/Mist OVC007 12 12 100% 76.15 0.0
11 00:15 SE 6 6.44 Fog/Mist OVC007 12 12 100% 76.15 0.0
10 23:55 Calm 8.05 Fog/Mist OVC007 12 12 100% 76.15 0.0
10 23:35 Calm 8.05 Fog/Mist OVC008 12 12 100% 76.12 0.0
10 23:15 Calm 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
10 22:55 Calm 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
10 22:35 Calm 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
10 22:15 Calm 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
10 21:55 N 6 9.66 Fog/Mist OVC009 12 12 100% 76.15 0.0
10 21:35 NW 7 8.05 Fog/Mist OVC009 12 12 100% 76.15 0.0
10 21:15 NW 6 8.05 Fog/Mist OVC009 13 13 100% 76.15 0.0
10 20:55 NW 13 9.66 Fog/Mist OVC009 13 13 100% 76.12 0.0
10 20:35 NW 11 8.05 Fog/Mist OVC010 13 13 100% 76.12 0.0
10 20:15 N 11 8.05 Fog/Mist OVC010 13 13 100% 76.12 0.0
10 19:55 NW 7 6.44 Fog/Mist OVC010 13 13 100% 76.1 0.0
10 19:35 NW 15 8.05 Fog/Mist OVC011 13 13 100% 76.1 0.0
10 19:15 NW 13 8.05 Fog/Mist BKN012 13 13 100% 76.1 0.0
10 18:55 NW 17 8.05 Fog/Mist BKN013 14 13 94% 76.1 0.0
10 18:35 NW 19 9.66 Fog/Mist OVC012 14 13 94% 76.12 0.0
10 18:15 NW 15 9.66 Fog/Mist BKN013 14 13 94% 76.12 0.0
10 17:55 N 19 9.66 Fog/Mist OVC013 14 13 94% 76.12 0.0
10 17:35 NW 17 9.66 Fog/Mist OVC013 14 13 94% 76.12 0.0
10 17:15 NW 15 9.66 Fog/Mist OVC013 14 13 94% 76.15 0.0
10 16:55 NW 15 9.66 Fog/Mist OVC013 14 13 94% 76.15 0.0
10 16:35 NW 15 9.66 Fog/Mist OVC013 14 13 94% 76.17 0.0
10 16:15 NW 15 G 24 9.66 Fog/Mist BKN013 14 13 94% 76.17 0.0
10 15:55 N 13 12.87 Mostly Cloudy BKN013 14 13 94% 76.2 0.0
10 15:35 NW 15 11.27 Partly Cloudy SCT013 15 13 88% 76.2 0.0
10 15:15 N 15 11.27 A Few Clouds FEW012 14 13 94% 76.23 0.0
10 14:55 Vrbl 9 11.27 Fair CLR 14 13 94% 76.23 0.0
10 14:35 NW 11 14.48 Fair CLR 14 13 94% 76.25 0.0
10 14:15 NW 9 G 20 11.27 A Few Clouds FEW013 14 13 94% 76.25 0.0
10 13:55 NW 13 12.87 A Few Clouds FEW013 14 13 94% 76.25 0.0
10 13:35 NW 13 12.87 A Few Clouds FEW014 14 13 94% 76.25 0.0
10 13:15 NW 17 9.66 Fog/Mist SCT013 14 13 94% 76.25 0.0
10 12:55 NW 17 9.66 Fog/Mist SCT013 14 13 94% 76.28 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)