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.
20 18:15 NW 17 11.27 Fair CLR 17 16 94% 76 0.0
20 17:55 NW 15 14.48 Fair CLR 18 16 88% 76.02 0.0
20 17:35 NW 13 14.48 Fair CLR 17 16 94% 76.05 0.0
20 17:15 NW 11 11.27 Fair CLR 17 16 94% 76.05 0.0
20 16:55 NW 13 12.87 Fair CLR 18 16 88% 76.07 0.0
20 16:35 NW 13 14.48 Fair CLR 17 16 94% 76.1 0.0
20 16:15 W 13 12.87 Fair CLR 17 16 94% 76.1 0.0
20 15:55 W 11 14.48 Fair CLR 17 16 94% 76.12 0.0
20 15:35 W 11 12.87 Fair CLR 17 16 94% 76.12 0.0
20 15:15 W 13 12.87 A Few Clouds FEW012 17 16 94% 76.15 0.0
20 14:55 W 15 12.87 Partly Cloudy FEW007 SCT012 18 16 88% 76.15 0.0
20 14:35 W 13 11.27 Partly Cloudy SCT005 17 16 94% 76.17 0.0
20 14:15 W 11 9.66 Fog/Mist BKN004 17 16 94% 76.15 0.0
20 13:55 W 13 4.83 Fog/Mist SCT003 17 16 94% 76.17 0.0
20 13:35 W 11 9.66 Fog/Mist CLR 17 16 94% 76.15 0.0
20 13:15 SW 11 11.27 Fair CLR 17 16 94% 76.15 0.0
20 12:55 Vrbl 7 9.66 Fog/Mist CLR 17 16 94% 76.15 0.0
20 12:35 SE 9 8.05 Fog/Mist FEW004 FEW013 17 16 94% 76.15 0.0
20 11:55 SW 13 9.66 Fog/Mist BKN006 16 16 100% 76.2 0.0
20 11:35 S 6 8.05 Fog/Mist OVC004 0 0 0% 76.17 0.0
20 11:15 Calm 6.44 Fog/Mist OVC003 15 15 100% 76.2 0.0
20 10:55 SW 7 1.21 Fog/Mist OVC003 15 15 100% 76.2 0.0
20 10:35 Vrbl 9 0.40 Fog BKN003 OVC010 15 15 100% 76.17 0.0
20 10:15 SW 11 11.27 A Few Clouds FEW011 16 16 100% 76.12 0.0
20 09:55 W 7 12.87 Fair CLR 0 0 0% 76.12 0.0
20 09:35 SW 7 12.87 Partly Cloudy SCT004 15 15 100% 76.12 0.0
20 09:15 S 7 6.44 Fog/Mist BKN003 BKN007 15 15 100% 76.12 0.0
20 08:55 S 9 1.21 Fog/Mist OVC003 15 15 100% 76.12 0.0
20 08:35 SE 11 1.61 Fog/Mist OVC003 15 15 100% 76.12 0.0
20 08:15 S 13 0.80 Fog/Mist OVC002 14 14 100% 76.12 0.0
20 07:35 SE 7 4.83 Fog/Mist OVC003 14 14 100% 76.07 0.0
20 07:15 SE 9 2.41 Fog/Mist OVC003 14 14 100% 76.1 0.0
20 06:55 SE 9 0.80 Fog/Mist OVC003 14 14 100% 76.1 0.0
20 06:35 SE 9 1.61 Fog/Mist OVC002 14 14 100% 76.1 0.0
20 06:15 SE 13 1.21 Fog/Mist OVC002 14 14 100% 76.07 0.0
20 05:55 SE 11 1.21 Fog/Mist OVC002 14 14 100% 76.1 0.0
20 05:35 SE 7 1.21 Fog/Mist OVC002 14 14 100% 76.1 0.0
20 05:15 SE 7 1.61 Fog/Mist OVC002 14 14 100% 76.1 0.0
20 04:55 SE 7 1.61 Fog/Mist OVC002 14 14 100% 76.1 0.0
20 04:35 Calm 1.61 Fog/Mist OVC002 14 14 100% 76.1 0.0
20 04:15 SE 6 3.22 Fog/Mist OVC002 14 14 100% 76.05 0.0
20 03:55 Calm 4.83 Fog/Mist OVC003 14 14 100% 76.05 0.0
20 03:35 Calm 6.44 Fog/Mist OVC003 14 14 100% 76.02 0.0
20 03:15 E 6 4.02 Fog/Mist OVC003 14 14 100% 76.02 0.0
20 02:55 Calm 4.02 Fog/Mist OVC003 14 14 100% 76.05 0.0
20 02:35 Calm 2.41 Fog/Mist OVC003 14 14 100% 76.05 0.0
20 02:15 SE 7 3.22 Fog/Mist OVC003 14 14 100% 76.07 0.0
20 01:55 Calm 2.41 Fog/Mist OVC003 14 14 100% 76.07 0.0
20 01:35 S 6 2.82 Fog/Mist OVC003 14 14 100% 76.07 0.0
20 01:15 S 7 3.22 Fog/Mist OVC003 14 14 100% 76.1 0.0
20 00:55 SE 9 4.02 Fog/Mist OVC004 14 14 100% 76.1 0.0
20 00:35 SE 7 6.44 Fog/Mist OVC004 14 14 100% 76.12 0.0
20 00:15 S 7 8.05 Fog/Mist OVC004 14 14 100% 76.12 0.0
19 23:55 Calm 4.83 Fog/Mist OVC004 14 14 100% 76.1 0.0
19 23:35 SE 7 4.83 Fog/Mist OVC005 14 14 100% 76.1 0.0
19 23:15 Calm 8.05 Fog/Mist OVC005 14 14 100% 76.1 0.0
19 22:55 Calm 12.87 Overcast OVC005 14 14 100% 76.1 0.0
19 22:35 Calm 12.87 Overcast OVC005 14 14 100% 76.12 0.0
19 22:15 Calm 12.87 Overcast OVC006 14 14 100% 76.1 0.0
19 21:55 Calm 14.48 Overcast OVC006 14 14 100% 76.1 0.0
19 21:35 Calm 12.87 Overcast OVC004 14 14 100% 76.1 0.0
19 21:15 Calm 4.83 Fog/Mist OVC004 14 14 100% 76.1 0.0
19 20:55 Calm 3.22 Fog/Mist OVC004 14 14 100% 76.07 0.0
19 20:35 W 6 8.05 Fog/Mist OVC006 14 14 100% 76.07 0.0
19 20:15 Calm 11.27 Overcast OVC006 14 14 100% 76.05 0.0
19 19:55 Calm 11.27 Overcast OVC007 14 14 100% 76.05 0.0
19 19:35 Calm 12.87 Overcast OVC007 14 14 100% 76.05 0.0
19 19:15 NW 6 12.87 Overcast OVC007 15 15 100% 76.05 0.0
19 18:55 NW 11 12.87 Overcast OVC007 15 15 100% 76.02 0.0
19 18:35 N 11 14.48 Overcast OVC007 15 15 100% 76.02 0.0
19 18:15 NW 9 12.87 Overcast OVC008 15 15 100% 76.07 0.0
19 17:55 N 9 12.87 Overcast OVC008 15 15 100% 76.05 0.0
19 17:35 NW 11 14.48 Overcast OVC007 15 15 100% 76.05 0.0
19 17:15 NW 17 14.48 Mostly Cloudy BKN007 BKN010 15 14 94% 76.05 0.0
19 16:55 NW 13 14.48 Mostly Cloudy BKN009 15 15 100% 76.07 0.0
19 16:35 NW 13 12.87 Partly Cloudy SCT009 15 14 94% 76.07 0.0
19 16:15 NW 13 14.48 Fair CLR 15 14 94% 76.07 0.0
19 15:55 Vrbl 9 G 19 14.48 A Few Clouds FEW009 15 14 94% 76.07 0.0
19 15:35 NW 13 14.48 A Few Clouds FEW009 15 14 94% 76.1 0.0
19 15:15 NW 15 14.48 A Few Clouds FEW010 16 14 88% 76.12 0.0
19 14:55 NW 13 14.48 Partly Cloudy SCT010 16 14 88% 76.15 0.0
19 14:35 W 15 14.48 Partly Cloudy SCT010 15 14 94% 76.15 0.0
19 14:15 N 15 14.48 A Few Clouds FEW010 15 14 94% 76.15 0.0
19 13:55 NW 15 14.48 Fair CLR 15 14 94% 76.15 0.0
19 13:35 W 15 14.48 Fair CLR 16 14 88% 76.15 0.0
19 13:15 NW 13 14.48 A Few Clouds FEW009 16 14 88% 76.17 0.0
19 12:55 NW 15 12.87 A Few Clouds FEW010 16 14 88% 76.23 0.0
19 12:35 NW 13 14.48 Partly Cloudy SCT010 16 14 88% 76.2 0.0
19 12:15 W 13 G 22 12.87 A Few Clouds FEW006 16 15 94% 76.23 0.0
19 11:55 NW 9 9.66 Fog/Mist BKN006 15 14 94% 76.2 0.0
19 11:35 W 9 6.44 Fog/Mist OVC005 14 14 100% 76.2 0.0
19 11:15 NW 11 8.05 Fog/Mist BKN006 14 14 100% 76.23 0.0
19 10:55 Calm 4.02 Fog/Mist OVC006 14 14 100% 76.23 0.0
19 10:35 Calm 9.66 Fog/Mist BKN006 14 14 100% 76.25 0.0
19 10:15 Vrbl 7 11.27 Overcast OVC005 14 14 100% 76.23 0.0
19 09:55 NW 7 8.05 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 09:35 Vrbl 7 4.02 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 09:15 Calm 4.02 Fog/Mist OVC005 13 13 100% 76.25 0.0
19 08:55 Calm 6.44 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 08:35 Calm 8.05 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 08:15 NW 6 4.83 Fog/Mist OVC004 13 13 100% 76.23 0.0
19 07:55 Calm 4.02 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 07:35 Calm 4.83 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 07:15 Calm 4.83 Fog/Mist OVC004 13 13 100% 76.23 0.0
19 06:55 Calm 4.83 Fog/Mist OVC004 12 12 100% 76.25 0.0
19 06:15 Calm 8.05 Fog/Mist OVC005 12 12 100% 76.23 0.0
19 05:55 Calm 11.27 Overcast OVC004 12 12 100% 76.25 0.0
19 05:35 NW 7 9.66 Fog/Mist NULL 12 12 100% 76.25 0.0
19 05:15 NW 9 0.00 NULL NULL 0 0 0% 76.23 0.0
19 04:55 W 9 8.05 Fog/Mist OVC004 12 12 100% 76.23 0.0
19 04:15 Calm 9.66 Fog/Mist OVC004 13 13 100% 76.23 0.0
19 03:55 Calm 9.66 Fog/Mist OVC004 13 13 100% 76.23 0.0
19 03:35 Calm 8.05 Fog/Mist OVC005 13 13 100% 76.23 0.0
19 03:15 NW 6 8.05 Fog/Mist OVC004 13 13 100% 76.23 0.0
19 02:55 NW 7 4.83 Overcast OVC004 0 0 0% 76.25 0.0
19 02:35 Calm 9.66 Fog/Mist OVC004 13 13 100% 76.25 0.0
19 02:15 Calm 8.05 Fog/Mist OVC004 13 13 100% 76.28 0.0
19 01:55 W 7 6.44 Fog/Mist OVC004 13 13 100% 76.28 0.0
19 01:15 Calm 9.66 Fog/Mist OVC005 13 13 100% 76.28 0.0
19 00:55 Calm 9.66 Fog/Mist OVC005 13 13 100% 76.28 0.0
19 00:35 N 6 9.66 Fog/Mist OVC005 13 13 100% 76.28 0.0
19 00:15 Calm 11.27 Overcast OVC006 13 13 100% 76.28 0.0
18 23:55 Calm 9.66 Fog/Mist OVC006 13 13 100% 76.28 0.0
18 23:35 NW 7 8.05 Fog/Mist OVC006 13 13 100% 76.28 0.0
18 23:15 Calm 8.05 Fog/Mist OVC006 13 13 100% 76.28 0.0
18 22:55 N 9 8.05 Fog/Mist OVC006 13 13 100% 76.3 0.0
18 22:35 NW 9 8.05 Fog/Mist OVC006 13 13 100% 76.3 0.0
18 20:55 NW 9 8.05 Fog/Mist OVC006 13 13 100% 76.25 0.0
18 20:35 NW 7 9.66 Overcast OVC006 0 0 0% 76.25 0.0
18 19:55 NW 9 9.66 Fog/Mist OVC006 0 0 0% 76.25 0.0
18 19:35 NW 13 9.66 Fog/Mist OVC006 14 14 100% 76.23 0.0
18 19:15 NW 11 8.05 Fog/Mist OVC006 14 14 100% 76.23 0.0
18 18:55 Vrbl 9 11.27 Overcast OVC007 14 14 100% 76.23 0.0
18 18:35 NW 9 11.27 Overcast OVC007 14 14 100% 76.23 0.0
18 18:15 NW 9 12.87 Overcast OVC006 14 14 100% 76.23 0.0
18 17:55 NW 13 11.27 Overcast OVC006 14 14 100% 76.25 0.0
18 17:35 NW 11 11.27 Overcast OVC007 14 14 100% 76.28 0.0
18 16:55 NW 11 12.87 Mostly Cloudy BKN007 BKN011 14 14 100% 76.28 0.0
18 16:35 W 11 11.27 Partly Cloudy SCT010 15 14 94% 76.3 0.0
18 16:15 SW 11 12.87 Partly Cloudy SCT010 15 14 94% 76.3 0.0
18 15:55 W 13 12.87 Partly Cloudy SCT011 15 14 94% 76.3 0.0
18 15:35 W 13 12.87 A Few Clouds FEW010 15 14 94% 76.33 0.0
18 15:15 SW 11 12.87 Partly Cloudy SCT011 15 14 94% 76.33 0.0
18 14:55 W 13 14.48 Mostly Cloudy BKN011 15 14 94% 76.35 0.0
18 14:35 W 11 12.87 A Few Clouds FEW011 16 14 88% 76.35 0.0
18 14:15 W 9 11.27 A Few Clouds FEW010 15 14 94% 76.35 0.0
18 13:55 W 11 11.27 Partly Cloudy SCT012 15 14 94% 76.38 0.0
18 13:35 Calm 11.27 Mostly Cloudy BKN012 0 0 0% 0 0.0
18 13:15 W 9 11.27 Mostly Cloudy BKN013 15 14 94% 76.4 0.0
18 12:55 Vrbl 9 11.27 Overcast OVC013 16 15 94% 76.4 0.0
18 12:35 Vrbl 7 G 19 12.87 Mostly Cloudy BKN013 16 15 94% 76.4 0.0
18 12:15 Calm 6.44 Fog/Mist FEW008 SCT013 15 15 100% 76.4 0.0
18 11:55 SW 9 9.66 Fog/Mist BKN012 15 14 94% 76.43 0.0
18 11:35 SW 7 11.27 Mostly Cloudy BKN013 15 14 94% 76.4 0.0
18 11:15 S 7 6.44 Fog/Mist FEW009 SCT013 15 14 94% 76.43 0.0
18 10:55 S 7 8.05 Fog/Mist BKN013 15 14 94% 76.43 0.0
18 10:35 Vrbl 9 11.27 Mostly Cloudy BKN013 15 14 94% 76.4 0.0
18 10:15 Vrbl 9 6.44 Partly Cloudy FEW007 SCT013 0 0 0% 76.4 0.0
18 09:55 Calm 6.44 Fog/Mist BKN008 14 14 100% 76.4 0.0
18 09:35 S 9 8.05 Fog/Mist FEW009 SCT013 14 14 100% 76.4 0.0
18 09:15 S 11 11.27 Mostly Cloudy BKN012 14 14 100% 76.4 0.0
18 08:55 S 7 4.83 Fog/Mist SCT009 BKN013 14 14 100% 76.38 0.0
18 08:15 SW 6 4.83 Fog/Mist OVC009 14 14 100% 76.38 0.0
18 07:55 S 9 6.44 Fog/Mist OVC008 14 14 100% 76.35 0.0
18 07:35 S 7 4.83 Fog/Mist OVC008 14 14 100% 76.35 0.0
18 07:15 S 6 6.44 Fog/Mist OVC009 14 14 100% 76.33 0.0
18 06:55 S 6 6.44 Fog/Mist OVC009 14 14 100% 76.33 0.0
18 06:35 Calm 4.83 Fog/Mist OVC009 14 14 100% 76.33 0.0
18 06:15 Vrbl 6 6.44 Fog/Mist OVC008 14 14 100% 76.3 0.0
18 05:55 S 6 4.83 Fog/Mist OVC007 14 14 100% 76.3 0.0
18 05:35 S 7 6.44 Fog/Mist OVC008 14 14 100% 76.3 0.0
18 05:15 Calm 8.05 Fog/Mist OVC008 14 14 100% 76.3 0.0
18 04:55 Calm 6.44 Overcast OVC008 0 0 0% 76.3 0.0
18 04:35 Calm 8.05 Fog/Mist OVC008 14 14 100% 76.3 0.0
18 03:55 SW 6 8.05 Fog/Mist OVC008 14 14 100% 76.28 0.0
18 03:35 Calm 8.05 Fog/Mist OVC008 14 14 100% 76.28 0.0
18 03:15 S 7 8.05 Fog/Mist OVC008 14 14 100% 76.28 0.0
18 02:55 Calm 8.05 Fog/Mist OVC008 14 14 100% 76.25 0.0
18 02:35 Calm 9.66 Fog/Mist OVC008 14 14 100% 76.25 0.0
18 02:15 Calm 9.66 Fog/Mist OVC008 14 14 100% 76.25 0.0
18 01:55 Calm 8.05 Fog/Mist OVC008 14 14 100% 76.25 0.0
18 01:35 W 7 8.05 Fog/Mist OVC009 14 14 100% 76.25 0.0
18 01:15 Calm 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
18 00:55 NW 7 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
18 00:35 NW 7 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
18 00:15 W 6 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 23:55 NW 7 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 23:35 NW 6 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 23:15 NW 9 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 22:55 NW 11 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 22:35 NW 13 9.66 Fog/Mist OVC009 14 14 100% 76.28 0.0
17 22:15 NW 7 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 21:55 NW 11 9.66 Fog/Mist OVC009 14 14 100% 76.25 0.0
17 21:35 NW 11 9.66 Fog/Mist OVC009 14 14 100% 76.23 0.0
17 21:15 NW 9 9.66 Fog/Mist OVC009 14 14 100% 76.23 0.0
17 20:55 NW 15 9.66 Fog/Mist OVC008 14 14 100% 76.2 0.0
17 20:35 NW 15 8.05 Fog/Mist OVC009 14 14 100% 76.2 0.0
17 20:15 NW 15 8.05 Fog/Mist OVC010 14 14 100% 76.2 0.0
17 19:55 NW 15 9.66 Fog/Mist OVC010 14 14 100% 76.17 0.0
17 19:35 NW 15 9.66 Fog/Mist OVC010 15 14 94% 76.17 0.0
17 19:15 NW 15 8.05 Fog/Mist OVC012 15 14 94% 76.17 0.0
17 18:55 NW 11 6.44 Fog/Mist OVC012 15 14 94% 76.17 0.0
17 18:35 NW 13 8.05 Fog/Mist OVC013 15 14 94% 76.17 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)