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.
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
03 01:55 Calm 6.44 Fog/Mist CLR 10 10 100% 75.72 0.0
03 01:35 Calm 6.44 Fog/Mist CLR 10 10 100% 75.72 0.0
03 01:15 Calm 6.44 Fog/Mist CLR 10 10 100% 75.74 0.0
03 00:55 Calm 6.44 Fog/Mist CLR 10 10 100% 75.74 0.0
03 00:35 Calm 6.44 Fog/Mist CLR 10 10 100% 75.74 0.0
02 23:55 Calm 6.44 Fog/Mist CLR 11 11 100% 75.74 0.0
02 23:35 Calm 6.44 Fog/Mist CLR 11 11 100% 75.77 0.0
02 23:15 Calm 6.44 Fog/Mist CLR 11 11 100% 75.77 0.0
02 22:55 Calm 6.44 Fog/Mist CLR 11 11 100% 75.79 0.0
02 22:35 Calm 6.44 Fog/Mist CLR 11 11 100% 75.77 0.0
02 22:15 NE 6 6.44 Fog/Mist CLR 12 12 100% 75.77 0.0
02 21:55 Calm 6.44 Fog/Mist CLR 12 12 100% 75.77 0.0
02 21:35 Calm 6.44 Fog/Mist CLR 12 12 100% 75.77 0.0
02 21:15 Calm 4.83 Fog/Mist CLR 13 13 100% 75.77 0.0
02 20:55 Calm 4.83 Fog/Mist CLR 14 13 94% 75.77 0.0
02 20:35 NW 7 4.02 Fog/Mist CLR 14 13 94% 75.77 0.0
02 20:15 NW 9 4.02 Fog/Mist CLR 14 13 94% 75.77 0.0
02 19:55 NW 11 4.83 Fog/Mist CLR 15 13 88% 75.77 0.0
02 19:35 NW 19 4.83 Fog/Mist CLR 15 13 88% 75.74 0.0
02 19:15 NW 15 4.83 Fair with Haze CLR 16 14 88% 75.77 0.0
02 18:55 NW 19 4.83 Fair with Haze CLR 16 13 83% 75.77 0.0
02 18:35 NW 20 4.83 Fair with Haze CLR 17 14 83% 75.77 0.0
02 18:15 NW 17 4.83 Fair with Haze CLR 17 14 83% 75.79 0.0
02 17:55 NW 20 4.83 Fair with Haze CLR 17 14 83% 75.79 0.0
02 17:35 NW 19 4.83 Fair with Haze CLR 18 14 78% 75.79 0.0
02 17:15 NW 19 4.83 Fair with Haze CLR 17 14 83% 75.82 0.0
02 16:55 NW 19 4.83 Fair with Haze CLR 18 14 78% 75.82 0.0
02 16:35 NW 19 4.83 Fair with Haze CLR 18 15 83% 75.82 0.0
02 16:15 NW 17 4.83 Fair with Haze CLR 18 15 83% 75.82 0.0
02 15:55 NW 13 4.83 Fair with Haze CLR 18 15 83% 75.84 0.0
02 15:35 NW 11 4.83 Fair with Haze CLR 18 15 83% 75.84 0.0
02 15:15 NW 13 4.83 Fair with Haze CLR 18 15 83% 75.87 0.0
02 14:55 NW 13 4.83 Fair with Haze CLR 19 14 73% 75.87 0.0
02 14:35 W 11 4.83 Fair with Haze CLR 18 14 78% 75.9 0.0
02 14:15 NW 11 4.83 Fair with Haze CLR 18 15 83% 75.9 0.0
02 13:55 NW 13 4.83 Fair with Haze CLR 18 15 83% 75.92 0.0
02 13:35 W 13 4.83 Fair with Haze CLR 18 15 83% 75.92 0.0
02 13:15 SW 9 4.83 Fair with Haze CLR 18 14 78% 75.92 0.0
02 12:55 SW 7 4.83 Fair with Haze CLR 18 14 78% 75.95 0.0
02 12:35 Vrbl 7 4.83 Fair with Haze CLR 19 14 73% 75.95 0.0
02 12:15 SW 11 4.83 Fair with Haze CLR 18 14 78% 75.97 0.0
02 11:55 S 11 4.83 Fair with Haze CLR 18 14 78% 75.97 0.0
02 11:35 SW 11 4.83 Fair with Haze CLR 17 14 83% 75.97 0.0
02 11:15 S 13 4.83 Fair with Haze CLR 17 15 88% 75.97 0.0
02 10:55 S 15 4.83 Fair with Haze CLR 17 14 83% 75.97 0.0
02 10:35 S 13 4.83 Fair with Haze CLR 16 14 88% 75.97 0.0
02 10:15 S 13 4.83 Fog/Mist CLR 16 14 88% 75.97 0.0
02 09:55 S 17 4.83 Fog/Mist CLR 15 14 94% 75.97 0.0
02 09:35 S 17 4.83 Fog/Mist SCT006 15 14 94% 76 0.0
02 09:15 S 15 4.83 Fog/Mist OVC006 15 14 94% 75.97 0.0
02 08:55 SE 13 4.02 Fog/Mist OVC006 14 14 100% 75.97 0.0
02 08:35 SE 15 4.02 Fog/Mist BKN007 14 14 100% 75.97 0.0
02 08:15 S 19 4.02 Fog/Mist BKN008 14 14 100% 75.97 0.0
02 07:55 SE 13 4.02 Fog/Mist BKN009 14 14 100% 76 0.0
02 07:35 S 13 4.02 Fog/Mist OVC009 14 14 100% 76 0.0
02 07:15 SE 15 4.02 Fog/Mist OVC009 14 14 100% 75.97 0.0
02 06:35 S 11 4.02 Fog/Mist OVC008 13 13 100% 75.95 0.0
02 06:15 SE 9 4.83 Fog/Mist OVC009 13 13 100% 75.95 0.0
02 05:55 S 11 4.83 Fog/Mist OVC009 13 13 100% 75.95 0.0
02 05:35 S 9 6.44 Fog/Mist OVC009 13 13 100% 75.97 0.0
02 05:15 S 6 6.44 Fog/Mist OVC009 13 13 100% 75.95 0.0
02 04:35 Calm 4.83 Fog/Mist OVC010 13 13 100% 75.97 0.0
02 03:55 Calm 4.83 Fog/Mist OVC011 11 11 100% 75.97 0.0
02 03:35 Calm 6.44 Overcast OVC011 0 0 0% 75.97 0.0
02 03:15 Calm 4.83 Fog/Mist BKN011 10 10 100% 76 0.0
02 02:55 Calm 6.44 Fog/Mist BKN010 10 10 100% 76 0.0
02 02:35 Calm 4.83 Fog/Mist BKN010 10 10 100% 76 0.0
02 02:15 Calm 6.44 Fog/Mist SCT010 10 10 100% 76.02 0.0
02 01:55 Calm 6.44 Fog/Mist SCT009 10 10 100% 76.02 0.0
02 01:35 Calm 6.44 Fog/Mist FEW009 10 10 100% 76.02 0.0
02 01:15 Calm 6.44 Fog/Mist FEW009 11 11 100% 76.02 0.0
02 00:55 Calm 6.44 Fog/Mist CLR 11 11 100% 76.05 0.0
02 00:35 Calm 6.44 Fog/Mist CLR 11 11 100% 76.05 0.0
02 00:15 Calm 6.44 Fog/Mist CLR 12 12 100% 76.07 0.0
01 23:55 NE 6 6.44 Fog/Mist CLR 12 12 100% 76.05 0.0
01 23:35 Calm 6.44 Fog/Mist CLR 12 12 100% 76.07 0.0
01 23:15 Calm 8.05 Fog/Mist CLR 12 12 100% 76.07 0.0
01 22:55 Calm 6.44 Fair CLR 0 0 0% 76.07 0.0
01 22:15 Calm 6.44 Fog/Mist CLR 13 13 100% 76.1 0.0
01 21:55 Calm 4.83 Fog/Mist CLR 14 14 100% 76.07 0.0
01 21:35 Calm 4.83 Fog/Mist CLR 14 14 100% 76.07 0.0
01 21:15 Calm 4.83 Fair CLR 0 0 0% 76.05 0.0
01 20:55 Calm 4.83 Fog/Mist CLR 15 15 100% 76.05 0.0
01 20:35 W 6 4.02 Fog/Mist CLR 15 15 100% 76.05 0.0
01 20:15 NW 11 4.83 Fog/Mist CLR 15 15 100% 76.05 0.0
01 19:55 NW 9 4.83 Fog/Mist CLR 16 15 94% 76.05 0.0
01 19:35 W 11 6.44 Fog/Mist CLR 16 15 94% 76.05 0.0
01 19:15 NW 11 6.44 Fog/Mist CLR 17 15 88% 76.05 0.0
01 18:55 NW 11 6.44 Fair with Haze CLR 17 15 88% 76.07 0.0
01 18:35 NW 13 6.44 Fair with Haze CLR 17 14 83% 76.07 0.0
01 18:15 NW 11 G 22 6.44 Fair with Haze CLR 18 15 83% 76.07 0.0
01 17:55 NW 17 6.44 Fair with Haze CLR 17 15 88% 76.1 0.0
01 17:35 NW 15 6.44 Fair with Haze CLR 18 15 83% 76.1 0.0
01 17:15 NW 15 6.44 Fair with Haze CLR 18 15 83% 76.12 0.0
01 16:55 NW 15 6.44 Fair with Haze CLR 18 15 83% 76.12 0.0
01 16:35 NW 17 8.05 Fair with Haze CLR 18 15 83% 76.15 0.0
01 16:15 NW 20 8.05 Fair with Haze CLR 17 15 88% 76.15 0.0
01 15:55 W 19 8.05 Fair with Haze CLR 18 15 83% 76.17 0.0
01 15:35 NW 19 8.05 Fair with Haze CLR 18 15 83% 76.2 0.0
01 15:15 NW 19 8.05 Fair with Haze CLR 18 15 83% 76.2 0.0
01 14:35 NW 20 6.44 Fair with Haze CLR 18 15 83% 76.23 0.0
01 14:15 NW 20 8.05 Fair with Haze CLR 18 15 83% 76.25 0.0
01 13:55 NW 20 8.05 Fair with Haze CLR 18 15 83% 76.25 0.0
01 13:35 NW 19 8.05 Fair with Haze CLR 18 15 83% 76.25 0.0
01 13:15 NW 19 8.05 Fair with Haze CLR 17 15 88% 76.28 0.0
01 12:55 NW 19 8.05 Fair with Haze CLR 17 15 88% 76.28 0.0
01 12:35 W 13 8.05 Fair with Haze CLR 17 15 88% 76.3 0.0
01 12:15 W 13 6.44 Fair with Haze CLR 17 15 88% 76.33 0.0
01 11:55 NW 13 8.05 Fair with Haze CLR 17 14 83% 76.33 0.0
01 11:35 Vrbl 6 6.44 Fog/Mist CLR 17 15 88% 76.33 0.0
01 11:15 W 11 6.44 Fog/Mist CLR 16 15 94% 76.33 0.0
01 10:55 SW 9 6.44 Fog/Mist CLR 16 14 88% 76.33 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)