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.
06 01:55 S 7 12.87 Overcast OVC010 15 15 100% 76.07 0.0
06 01:35 SE 9 14.48 Overcast OVC010 15 15 100% 76.07 0.0
06 01:15 Calm 12.87 NULL NULL 15 15 100% 76.1 0.0
06 00:55 Vrbl 7 12.87 NULL NULL 0 0 0% 76.1 0.0
06 00:35 SE 9 12.87 Overcast OVC009 15 15 100% 76.1 0.0
06 00:15 S 11 12.87 Overcast OVC010 16 15 94% 76.1 0.0
05 23:55 Vrbl 6 11.27 Overcast OVC009 16 15 94% 76.1 0.0
05 23:35 S 6 12.87 Overcast OVC010 16 15 94% 76.1 0.0
05 23:15 S 9 12.87 Overcast OVC010 16 15 94% 76.1 0.0
05 22:55 S 13 12.87 Overcast OVC010 16 15 94% 76.1 0.0
05 22:35 S 9 12.87 Overcast OVC011 16 15 94% 76.12 0.0
05 22:15 S 9 12.87 Overcast OVC011 16 15 94% 76.1 0.0
05 21:55 S 13 11.27 Overcast OVC010 16 15 94% 76.07 0.0
05 21:35 S 15 12.87 Overcast OVC011 16 15 94% 76.07 0.0
05 21:15 SE 11 12.87 Overcast OVC011 16 15 94% 76.05 0.0
05 20:55 S 13 12.87 Overcast OVC011 16 15 94% 76.05 0.0
05 20:35 S 17 12.87 Overcast OVC011 16 15 94% 76.05 0.0
05 20:15 S 17 11.27 Overcast OVC011 16 15 94% 76.02 0.0
05 19:55 S 15 12.87 Overcast OVC011 0 0 0% 76.02 0.0
05 19:35 S 13 12.87 Overcast OVC011 16 15 94% 76.02 0.0
05 19:15 S 9 11.27 Overcast OVC011 16 15 94% 76.02 0.0
05 18:55 S 11 11.27 Overcast OVC012 16 15 94% 76.02 0.0
05 18:35 S 13 12.87 Overcast OVC012 16 15 94% 76.02 0.0
05 18:15 S 11 11.27 Overcast OVC012 17 15 88% 76.02 0.0
05 17:55 S 11 11.27 Overcast OVC012 17 15 88% 76.02 0.0
05 17:35 S 11 G 20 11.27 Overcast OVC013 17 15 88% 76.02 0.0
05 17:15 SW 9 11.27 Overcast OVC013 17 15 88% 76.02 0.0
05 16:55 S 13 11.27 Mostly Cloudy BKN013 17 15 88% 76.02 0.0
05 16:35 Vrbl 11 G 20 11.27 A Few Clouds FEW013 18 15 83% 76.02 0.0
05 16:15 Vrbl 11 G 20 11.27 Fair CLR 18 15 83% 76.02 0.0
05 15:55 SW 13 12.87 A Few Clouds FEW013 18 15 83% 76.02 0.0
05 15:35 Vrbl 9 11.27 Mostly Cloudy BKN013 18 15 83% 76.02 0.0
05 15:15 S 15 11.27 Mostly Cloudy BKN014 18 15 83% 76.05 0.0
05 14:55 S 13 8.05 Mostly Cloudy with Haze BKN014 18 14 78% 76.05 0.0
05 14:35 S 13 11.27 Mostly Cloudy BKN014 18 15 83% 76.07 0.0
05 14:15 S 15 9.66 Overcast with Haze OVC014 18 15 83% 76.1 0.0
05 13:55 S 17 11.27 Overcast OVC014 18 15 83% 76.1 0.0
05 13:35 S 15 11.27 Mostly Cloudy BKN014 18 15 83% 76.1 0.0
05 13:15 S 15 11.27 Mostly Cloudy BKN014 0 0 0% 76.12 0.0
05 12:55 S 17 11.27 Mostly Cloudy BKN014 18 14 78% 76.1 0.0
05 12:35 S 15 11.27 Mostly Cloudy BKN014 17 14 83% 76.1 0.0
05 12:15 S 19 11.27 Mostly Cloudy BKN013 17 14 83% 76.1 0.0
05 11:55 S 19 11.27 Overcast OVC013 17 14 83% 76.1 0.0
05 11:35 S 17 11.27 Overcast OVC013 17 14 83% 76.12 0.0
05 11:15 Calm 11.27 Overcast OVC013 16 14 88% 76.12 0.0
05 10:55 S 15 9.66 Fog/Mist OVC013 16 14 88% 76.12 0.0
05 08:00 S 11 9.66 Fog/Mist OVC009 14 14 100% 76.02 0.0
05 07:35 S 11 9.66 Fog/Mist OVC009 15 14 94% 76 0.0
05 07:15 SW 11 9.66 Fog/Mist OVC009 14 14 100% 76 0.0
05 06:55 S 15 9.66 Fog/Mist OVC010 14 14 100% 75.97 0.0
05 06:35 S 13 9.66 Fog/Mist OVC010 14 14 100% 75.97 0.0
05 06:15 S 15 11.27 Overcast OVC010 0 0 0% 75.95 0.0
05 05:55 S 11 11.27 Overcast OVC010 15 14 94% 75.95 0.0
05 05:35 S 17 11.27 Overcast OVC010 15 14 94% 75.95 0.0
05 05:15 S 13 11.27 Overcast OVC010 15 14 94% 75.95 0.0
05 04:55 S 13 G 22 11.27 Overcast OVC010 15 15 100% 75.95 0.0
05 04:35 S 17 11.27 Overcast OVC009 15 15 100% 75.95 0.0
05 04:15 S 17 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 03:55 S 17 G 26 11.27 Overcast OVC011 15 15 100% 75.95 0.0
05 03:35 S 20 11.27 Overcast OVC010 15 15 100% 75.95 0.0
05 03:15 S 15 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 02:55 S 19 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 02:35 S 17 9.66 Fog/Mist OVC011 15 15 100% 75.95 0.0
05 02:15 S 19 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 01:55 S 15 G 26 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 01:35 S 13 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 01:15 S 13 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 00:55 S 13 G 22 11.27 Overcast OVC010 15 15 100% 75.95 0.0
05 00:35 S 17 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
05 00:15 S 17 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
04 23:55 S 17 9.66 Fog/Mist OVC010 15 15 100% 75.95 0.0
04 23:35 S 17 9.66 Fog/Mist OVC009 15 15 100% 75.95 0.0
04 23:15 S 13 9.66 Overcast OVC009 0 0 0% 75.95 0.0
04 22:55 S 17 9.66 Fog/Mist OVC009 15 15 100% 75.97 0.0
04 22:35 S 17 9.66 Fog/Mist OVC008 15 15 100% 75.97 0.0
04 22:15 S 13 9.66 Fog/Mist OVC008 15 15 100% 75.97 0.0
04 21:55 S 19 9.66 Fog/Mist OVC009 15 15 100% 75.95 0.0
04 21:35 S 15 9.66 Fog/Mist OVC009 15 15 100% 75.92 0.0
04 21:15 S 17 9.66 Fog/Mist OVC009 15 15 100% 75.92 0.0
04 20:55 S 19 9.66 NULL NULL 0 0 0% 75.9 0.0
04 20:35 S 15 0.00 NULL NULL 15 15 100% 75.9 0.0
04 20:15 S 19 6.44 Fog/Mist OVC009 16 15 94% 75.87 0.0
04 19:55 S 15 8.05 Fog/Mist OVC009 16 15 94% 75.87 0.0
04 19:35 S 15 6.44 Fog/Mist OVC009 16 15 94% 75.84 0.0
04 19:15 S 15 G 26 8.05 Fog/Mist OVC009 16 15 94% 75.84 0.0
04 18:55 S 13 6.44 Fog/Mist OVC009 16 15 94% 75.84 0.0
04 18:35 S 13 6.44 Fog/Mist BKN009 16 15 94% 75.84 0.0
04 18:15 S 13 6.44 Fog/Mist BKN009 16 15 94% 75.84 0.0
04 17:55 S 9 G 20 6.44 Fog/Mist SCT009 16 16 100% 75.84 0.0
04 17:35 S 15 6.44 Fog/Mist SCT009 16 15 94% 75.84 0.0
04 17:15 S 15 6.44 Fog/Mist FEW008 17 16 94% 75.87 0.0
04 16:55 S 15 8.05 Fog/Mist FEW009 17 15 88% 75.87 0.0
04 16:35 S 15 8.05 Fog/Mist FEW008 17 16 94% 75.9 0.0
04 16:15 S 15 8.05 Fog/Mist FEW008 17 16 94% 75.9 0.0
04 15:55 S 19 6.44 Fog/Mist FEW009 17 15 88% 75.9 0.0
04 15:35 S 19 8.05 Fog/Mist FEW010 FEW014 17 15 88% 75.9 0.0
04 15:15 S 17 8.05 Fog/Mist SCT012 17 16 94% 75.9 0.0
04 14:55 S 19 9.66 Fog/Mist BKN013 17 15 88% 75.9 0.0
04 14:35 S 19 8.05 Fog/Mist BKN012 17 15 88% 75.9 0.0
04 14:15 S 20 9.66 Fog/Mist SCT012 17 15 88% 75.9 0.0
04 13:55 S 20 8.05 Fog/Mist SCT012 17 15 88% 75.9 0.0
04 13:35 S 19 8.05 Fog/Mist SCT012 17 16 94% 75.9 0.0
04 13:15 SW 19 8.05 Fog/Mist FEW012 18 16 88% 75.9 0.0
04 12:55 S 19 8.05 Fog/Mist SCT011 17 15 88% 75.9 0.0
04 12:35 S 17 8.05 Fog/Mist BKN012 17 15 88% 75.92 0.0
04 12:15 S 17 11.27 NULL NULL 17 16 94% 75.92 0.0
04 11:55 S 17 9.66 Fog/Mist NULL 17 16 94% 75.95 0.0
04 11:35 S 15 9.66 Fog/Mist NULL 17 16 94% 75.95 0.0
04 11:15 S 17 G 26 9.66 Fog/Mist OVC012 17 16 94% 75.95 0.0
04 10:55 S 17 9.66 Fog/Mist BKN012 16 15 94% 75.92 0.0
04 10:35 S 17 9.66 Fog/Mist SCT011 16 15 94% 75.92 0.0
04 10:20 S 17 9.66 Fog/Mist FEW007 SCT011 16 15 94% 75.92 0.0
04 09:55 SE 17 9.66 Fog/Mist BKN007 15 15 100% 75.9 0.0
04 09:35 SE 15 8.05 Fog/Mist BKN007 15 15 100% 75.9 0.0
04 09:15 SE 13 6.44 Fog/Mist OVC007 15 15 100% 75.9 0.0
04 08:55 SE 17 6.44 Fog/Mist OVC006 14 14 100% 75.87 0.0
04 08:35 SE 15 4.83 Fog/Mist OVC005 14 14 100% 75.87 0.0
04 08:15 SE 17 4.02 Fog/Mist OVC005 14 14 100% 75.84 0.0
04 07:55 SE 15 3.22 Fog/Mist OVC005 14 14 100% 75.82 0.0
04 07:35 SE 15 3.22 Fog/Mist OVC004 14 14 100% 75.84 0.0
04 07:15 SE 17 2.01 Fog/Mist OVC004 14 14 100% 75.82 0.0
04 06:55 SE 15 1.61 Fog/Mist OVC004 14 14 100% 75.82 0.0
04 06:15 SE 15 3.22 Fog/Mist OVC004 13 13 100% 75.77 0.0
04 05:55 SE 17 4.02 Fog/Mist OVC004 13 13 100% 75.77 0.0
04 05:35 SE 19 4.02 Fog/Mist OVC003 13 13 100% 75.77 0.0
04 04:55 SE 17 3.22 Fog/Mist OVC003 14 14 100% 75.77 0.0
04 04:35 S 17 3.22 Fog/Mist OVC003 14 14 100% 75.74 0.0
04 04:15 SE 20 3.22 Fog/Mist OVC003 14 14 100% 75.77 0.0
04 03:35 S 15 G 24 3.22 Fog/Mist OVC003 13 13 100% 75.74 0.0
04 03:15 S 19 2.82 Fog/Mist OVC003 14 14 100% 75.74 0.0
04 02:35 S 17 2.82 Fog/Mist OVC003 14 14 100% 75.72 0.0
04 02:15 S 17 3.22 Fog/Mist OVC003 13 13 100% 75.72 0.0
04 01:35 S 19 2.41 Fog/Mist OVC002 13 13 100% 75.74 0.0
04 00:55 SE 19 1.21 Fog/Mist OVC002 14 14 100% 75.74 0.0
04 00:35 SE 15 1.21 Fog/Mist OVC002 13 13 100% 75.74 0.0
04 00:15 S 17 0.80 Fog/Mist OVC002 13 13 100% 75.72 0.0
03 23:35 S 17 1.21 Fog/Mist OVC002 14 14 100% 75.72 0.0
03 23:15 S 15 0.80 Fog/Mist OVC002 14 14 100% 75.72 0.0
03 22:55 S 17 0.80 Fog/Mist OVC002 14 14 100% 75.72 0.0
03 22:35 S 17 1.61 Fog/Mist OVC002 14 14 100% 75.72 0.0
03 22:15 SE 19 1.61 Fog/Mist OVC002 14 14 100% 75.72 0.0
03 21:55 S 19 2.41 Fog/Mist OVC003 14 14 100% 75.72 0.0
03 21:35 S 15 3.22 Overcast OVC003 0 0 0% 75.72 0.0
03 21:15 SE 17 3.22 Overcast OVC003 0 0 0% 75.72 0.0
03 20:55 SE 15 G 24 3.22 Fog/Mist OVC003 14 14 100% 75.72 0.0
03 20:35 SE 17 4.02 Fog/Mist OVC004 14 14 100% 75.69 0.0
03 19:35 S 15 3.22 Fog/Mist OVC005 15 15 100% 75.67 0.0
03 19:15 SE 17 3.22 Fog/Mist OVC004 15 15 100% 75.67 0.0
03 18:55 SE 15 4.02 Fog/Mist OVC004 15 15 100% 75.67 0.0
03 18:35 S 15 3.22 Fog/Mist OVC004 15 15 100% 75.67 0.0
03 18:15 S 17 4.02 Fog/Mist OVC004 15 15 100% 75.69 0.0
03 17:55 S 17 4.02 Fog/Mist OVC005 15 15 100% 75.69 0.0
03 17:35 SE 15 4.02 Fog/Mist BKN005 15 15 100% 75.69 0.0
03 17:15 SE 17 4.02 Fog/Mist BKN005 16 15 94% 75.69 0.0
03 16:55 S 17 4.02 Fog/Mist BKN005 16 15 94% 75.72 0.0
03 16:35 S 19 4.83 Fog/Mist SCT006 16 15 94% 75.72 0.0
03 16:15 S 17 4.83 A Few Clouds FEW006 0 0 0% 75.74 0.0
03 15:55 S 20 4.83 Fog/Mist FEW005 16 15 94% 75.74 0.0
03 15:35 S 15 6.44 Mostly Cloudy BKN005 0 0 0% 75.74 0.0
03 15:15 S 17 6.44 Fog/Mist SCT005 16 15 94% 75.77 0.0
03 14:55 S 20 8.05 Fog/Mist FEW005 16 15 94% 75.77 0.0
03 14:35 S 22 8.05 Fog/Mist FEW006 16 15 94% 75.77 0.0
03 14:15 S 22 6.44 Fog/Mist CLR 17 15 88% 75.74 0.0
03 13:55 S 24 8.05 Fog/Mist CLR 16 14 88% 75.77 0.0
03 13:35 S 22 4.83 Fog/Mist CLR 16 15 94% 75.79 0.0
03 13:15 S 22 6.44 Fog/Mist CLR 16 15 94% 75.79 0.0
03 12:55 S 22 8.05 Fog/Mist CLR 16 14 88% 75.79 0.0
03 12:35 S 19 G 30 6.44 Fog/Mist CLR 16 14 88% 75.79 0.0
03 12:15 S 19 6.44 Fog/Mist FEW007 16 15 94% 75.79 0.0
03 11:55 S 22 6.44 Fog/Mist FEW006 16 15 94% 75.79 0.0
03 11:35 S 22 4.83 Fog/Mist FEW007 15 14 94% 75.79 0.0
03 11:15 S 19 4.83 Fog/Mist FEW006 16 14 88% 75.79 0.0
03 10:55 S 20 4.83 Fog/Mist FEW006 15 14 94% 75.79 0.0
03 10:35 S 20 4.83 Fog/Mist FEW005 15 14 94% 75.77 0.0
03 10:15 S 20 G 30 4.02 Fog/Mist FEW006 15 14 94% 75.77 0.0
03 09:55 S 19 3.22 Partly Cloudy SCT006 0 0 0% 75.77 0.0
03 09:35 S 20 4.02 Fog/Mist SCT006 14 14 100% 75.77 0.0
03 09:15 S 20 3.22 Fog/Mist SCT006 14 14 100% 75.77 0.0
03 08:55 SE 19 G 28 3.22 Fog/Mist SCT006 14 14 100% 75.79 0.0
03 08:35 S 19 3.22 Fog/Mist BKN006 14 14 100% 75.77 0.0
03 08:15 SE 17 3.22 Fog/Mist BKN007 14 14 100% 75.77 0.0
03 07:55 SE 17 3.22 Fog/Mist BKN007 14 14 100% 75.77 0.0
03 07:35 SE 17 3.22 Fog/Mist BKN007 13 13 100% 75.74 0.0
03 07:15 S 19 3.22 Fog/Mist OVC007 13 13 100% 75.77 0.0
03 06:55 S 19 2.82 Fog/Mist OVC008 13 13 100% 75.74 0.0
03 06:35 S 17 3.22 Fog/Mist OVC009 13 13 100% 75.72 0.0
03 06:15 SE 15 4.83 Fog/Mist OVC010 13 13 100% 75.69 0.0
03 05:55 SE 13 4.83 Fog/Mist BKN010 12 12 100% 75.69 0.0
03 05:35 SE 13 4.83 Fog/Mist CLR 12 12 100% 75.69 0.0
03 05:15 SE 11 4.02 Fog/Mist CLR 12 12 100% 75.69 0.0
03 04:55 SE 11 4.83 Fog/Mist CLR 12 12 100% 75.69 0.0
03 04:35 SE 11 4.83 Fog/Mist CLR 12 12 100% 75.69 0.0
03 04:15 SE 11 4.83 Fog/Mist CLR 11 11 100% 75.69 0.0
03 03:35 Calm 4.83 A Few Clouds FEW014 FEW019 0 0 0% 75.69 0.0
03 03:15 Calm 6.44 Fog/Mist FEW013 10 10 100% 75.69 0.0
03 02:55 Calm 6.44 Fog/Mist FEW012 10 10 100% 75.69 0.0
03 02:35 Calm 6.44 Fog/Mist CLR 10 10 100% 75.72 0.0
03 02:15 Calm 6.44 Fog/Mist CLR 10 10 100% 75.72 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)