Weather observations for the past three days for
Half Moon Bay Airport
Metric (Imperial)
Date Time (pst) 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.
09 12:55 NW 15 16.09 Fair CLR 17 6 49% 76.45 0.0
09 12:35 N 13 16.09 Fair CLR 16 9 63% 76.5 0.0
09 12:15 N 11 16.09 Fair CLR 16 9 63% 76.56 0.0
09 11:55 N 13 16.09 Fair CLR 16 9 63% 76.61 0.0
09 11:35 Calm 16.09 Fair CLR 16 7 55% 76.63 0.0
09 11:15 Vrbl 9 G 22 16.09 Fair CLR 16 7 55% 76.61 0.0
09 10:55 N 17 16.09 Fair CLR 16 7 55% 76.61 0.0
09 10:35 NE 17 G 31 16.09 Fair CLR 15 8 63% 76.61 0.0
09 10:15 N 11 16.09 Fair CLR 14 9 72% 76.63 0.0
09 09:55 NE 13 16.09 Fair CLR 14 10 77% 76.66 0.0
09 09:35 Vrbl 6 16.09 Fair CLR 13 10 82% 76.68 0.0
09 09:15 Vrbl 9 16.09 Fair CLR 13 10 82% 76.71 0.0
09 08:55 Vrbl 9 G 19 16.09 Fair CLR 13 9 77% 76.73 0.0
09 08:35 Vrbl 6 16.09 Fair CLR 13 10 82% 76.76 0.0
09 08:15 N 11 9.66 Fog/Mist CLR 12 10 88% 76.76 0.0
09 07:55 NW 11 14.48 Fair CLR 12 10 88% 76.76 0.0
09 07:35 NW 19 14.48 Fair CLR 12 10 88% 76.76 0.0
09 07:15 NW 22 12.87 Fair CLR 11 10 94% 76.78 0.0
09 06:55 NW 17 12.87 Fair CLR 11 10 94% 76.78 0.0
09 06:35 NW 17 14.48 Fair CLR 11 10 94% 76.78 0.0
09 06:15 NW 19 16.09 Fair CLR 11 10 94% 76.78 0.0
09 05:55 N 15 G 24 14.48 Fair CLR 12 10 88% 76.78 0.0
09 05:35 N 17 11.27 Fair CLR 11 10 94% 76.81 0.0
09 05:15 N 20 16.09 Fair CLR 12 10 88% 76.81 0.0
09 04:55 N 15 16.09 Fair CLR 10 10 100% 8 76.81 0.0
09 04:35 N 15 14.48 Fair CLR 11 10 94% 76.86 0.0
09 04:15 N 13 14.48 Fair CLR 11 10 94% 76.84 0.0
09 03:55 N 15 16.09 Fair CLR 12 11 94% 76.84 0.0
09 03:35 N 17 14.48 Fair CLR 12 12 100% 76.86 0.0
09 03:15 N 19 16.09 Fair CLR 12 11 94% 76.86 0.0
09 02:55 N 17 G 26 14.48 Fair CLR 12 12 100% 76.89 0.0
09 02:35 N 17 G 30 14.48 Fair CLR 12 12 100% 76.89 0.0
09 02:15 N 22 G 33 12.87 Fair CLR 12 12 100% 76.89 0.0
09 01:55 N 22 14.48 Fair CLR 13 13 100% 76.91 0.0
09 01:15 N 31 14.48 Mostly Cloudy BKN013 13 13 100% 76.91 0.0
09 00:55 N 28 14.48 Mostly Cloudy BKN014 13 13 100% 76.91 0.0
09 00:35 N 20 G 41 16.09 Overcast BKN016 OVC021 13 13 100% 76.96 0.0
09 00:15 NW 28 G 41 14.48 Overcast BKN010 OVC019 13 13 100% 76.96 0.0
08 23:55 NW 20 11.27 Overcast BKN009 OVC014 13 13 100% 76.99 0.0
08 23:35 N 11 11.27 Mostly Cloudy BKN009 BKN013 13 13 100% 76.96 0.0
08 23:15 N 11 14.48 Overcast SCT003 BKN009 OVC013 13 13 100% 76.99 0.0
08 22:55 NW 13 2.82 Fog/Mist OVC003 13 13 100% 76.99 0.0
08 22:35 NW 19 9.66 Fog/Mist BKN003 BKN007 13 13 100% 76.99 0.0
08 22:15 Calm 16.09 Mostly Cloudy BKN004 11 11 100% 76.91 0.0
08 21:55 Calm 16.09 Mostly Cloudy BKN004 12 12 100% 76.91 0.0
08 21:35 SE 9 14.48 Overcast OVC004 13 13 100% 76.89 0.0
08 21:15 SE 7 14.48 Overcast SCT004 OVC010 13 13 100% 76.91 0.0
08 20:55 S 6 16.09 Overcast BKN006 OVC011 13 13 100% 76.94 0.0
08 20:35 Calm 9.66 Fog/Mist OVC005 13 13 100% 76.99 0.0
08 20:15 Calm 4.02 Fog/Mist OVC006 13 13 100% 76.99 0.0
08 19:55 N 7 4.83 Fog/Mist BKN007 OVC013 13 13 100% 77.01 0.0
08 19:35 NW 7 3.22 Fog/Mist BKN005 OVC009 13 13 100% 76.99 0.0
08 19:15 NW 9 3.22 Fog/Mist BKN003 OVC007 13 13 100% 76.99 0.0
08 18:55 NW 7 6.44 Fog/Mist OVC003 13 13 100% 76.99 0.0
08 18:15 NW 13 4.02 Fog/Mist OVC003 14 14 100% 76.99 0.0
08 17:55 Calm 1.61 Fog/Mist OVC003 14 14 100% 76.96 0.0
08 17:35 Calm 2.41 Fog/Mist OVC003 14 14 100% 76.96 0.0
08 17:15 W 6 11.27 Mostly Cloudy BKN005 BKN010 BKN014 14 14 100% 76.94 0.0
08 16:55 Calm 4.02 Fog/Mist BKN007 BKN015 14 14 100% 76.94 0.0
08 16:35 W 7 9.66 Fog/Mist BKN008 OVC013 14 14 100% 76.94 0.0
08 16:15 Calm 11.27 Mostly Cloudy BKN004 BKN015 14 14 100% 76.94 0.0
08 15:55 N 11 6.44 Fog/Mist OVC003 14 14 100% 76.99 0.0
08 15:35 NW 17 6.44 Fog/Mist OVC004 14 14 100% 76.99 0.0
08 15:15 NW 22 G 31 11.27 Overcast OVC004 14 14 100% 77.01 0.0
08 14:55 NW 20 9.66 Fog/Mist OVC004 14 14 100% 77.01 0.0
08 14:35 NW 24 11.27 Mostly Cloudy BKN003 BKN007 14 14 100% 77.01 0.0
08 14:15 NW 30 14.48 Fair CLR 16 15 94% 76.96 0.0
08 13:55 NW 11 14.48 Fair CLR 17 15 88% 76.94 0.0
08 13:35 NW 13 14.48 Fair CLR 16 14 88% 76.94 0.0
08 13:15 NW 13 12.87 Fair CLR 16 15 94% 76.91 0.0
08 12:55 NW 9 16.09 Fair CLR 15 14 94% 76.94 0.0
08 12:35 W 11 8.05 Fog/Mist CLR 17 15 88% 76.94 0.0
08 12:15 Calm 9.66 Fog/Mist CLR 16 14 88% 76.96 0.0
08 11:55 Calm 11.27 Fair CLR 16 14 88% 76.99 0.0
08 11:35 S 7 12.87 Fair CLR 16 14 88% 77.01 0.0
08 11:15 W 6 11.27 Fair CLR 15 14 94% 77.04 0.0
08 10:55 Calm 16.09 A Few Clouds FEW003 14 14 100% 77.06 0.0
08 10:35 NW 11 4.83 Fog/Mist BKN003 BKN006 13 13 100% 77.11 0.0
08 10:15 NW 13 2.01 Fog/Mist OVC003 13 13 100% 77.11 0.0
08 09:55 NW 17 3.22 Fog/Mist BKN003 OVC006 13 13 100% 77.11 0.0
08 09:35 Vrbl 9 11.27 Overcast OVC004 12 12 100% 77.09 0.0
08 09:15 N 7 3.22 Fog/Mist OVC003 12 12 100% 77.09 0.0
08 08:55 NW 9 2.41 Fog/Mist OVC003 12 12 100% 77.09 0.0
08 08:35 N 7 2.01 Fog/Mist OVC003 12 12 100% 77.09 0.0
08 08:15 Calm 2.41 Fog/Mist OVC003 11 11 100% 77.06 0.0
08 07:55 Calm 11.27 Overcast OVC004 10 10 100% 77.04 0.0
08 07:35 Calm 11.27 Mostly Cloudy BKN005 8 8 100% 77.01 0.0
08 07:15 N 7 9.66 Fog/Mist FEW003 8 8 100% 7 77.06 0.0
08 06:55 SE 6 12.87 A Few Clouds FEW005 8 8 100% 77.01 0.0
08 06:35 N 7 G 19 11.27 Mostly Cloudy BKN005 11 11 100% 77.01 0.0
08 06:15 N 17 9.66 Fog/Mist OVC005 12 12 100% 77.01 0.0
08 05:55 NW 24 9.66 Fog/Mist OVC006 12 12 100% 76.99 0.0
08 05:35 NW 17 8.05 Fog/Mist OVC005 11 11 100% 76.94 0.0
08 05:15 N 9 16.09 Overcast OVC005 7 7 100% 5 76.94 0.0
08 04:55 Calm 16.09 Partly Cloudy SCT004 7 7 100% 76.91 0.0
08 04:35 Calm 16.09 Fair CLR 6 6 100% 76.91 0.0
08 04:15 Calm 16.09 Fair CLR 7 7 100% 76.94 0.0
08 03:55 E 6 16.09 Fair CLR 7 7 100% 76.96 0.0
08 03:35 Calm 16.09 Fair CLR 7 7 100% 76.99 0.0
08 03:15 Calm 16.09 Fair CLR 7 7 100% 76.99 0.0
08 02:55 Calm 11.27 Fair CLR 8 8 100% 76.99 0.0
08 02:35 Calm 16.09 Partly Cloudy SCT003 7 7 100% 77.01 0.0
08 02:15 Calm 14.48 Partly Cloudy SCT003 7 7 100% 76.96 0.0
08 01:55 NE 7 16.09 Fair CLR 7 7 100% 6 76.91 0.0
08 01:35 Calm 16.09 Fair CLR 7 7 100% 76.91 0.0
08 01:15 Calm 16.09 Fair CLR 8 8 100% 76.94 0.0
08 00:55 Calm 16.09 Fair CLR 9 9 100% 76.91 0.0
08 00:35 E 6 16.09 Fair CLR 9 9 100% 76.94 0.0
08 00:15 N 11 16.09 Fair CLR 12 12 100% 76.96 0.0
07 23:55 N 15 G 24 12.87 A Few Clouds FEW009 12 12 100% 76.96 0.0
07 23:35 N 17 16.09 Mostly Cloudy BKN009 13 13 100% 76.96 0.0
07 23:15 N 11 G 22 14.48 Mostly Cloudy BKN008 13 13 100% 76.99 0.0
07 22:55 N 17 12.87 A Few Clouds FEW009 12 12 100% 76.99 0.0
07 22:35 NW 7 16.09 Fair CLR 8 8 100% 7 76.99 0.0
07 22:15 Calm 14.48 Fair CLR 8 8 100% 76.99 0.0
07 21:55 Calm 16.09 Fair CLR 8 8 100% 76.99 0.0
07 21:35 NE 9 16.09 A Few Clouds FEW003 8 8 100% 7 76.99 0.0
07 21:15 NW 6 16.09 A Few Clouds FEW003 8 8 100% 76.99 0.0
07 20:55 Calm 16.09 A Few Clouds FEW003 9 7 87% 76.96 0.0
07 20:35 E 7 16.09 Fair CLR 10 8 88% 9 76.96 0.0
07 20:15 NE 7 12.87 Fair CLR 10 10 100% 9 76.99 0.0
07 19:55 Vrbl 7 11.27 Fair CLR 12 12 100% 76.99 0.0
07 19:35 N 9 12.87 Fair CLR 12 12 100% 76.99 0.0
07 19:15 N 7 12.87 Fair CLR 11 11 100% 76.96 0.0
07 18:55 N 6 11.27 Fair CLR 11 11 100% 76.99 0.0
07 18:35 N 7 16.09 Fair CLR 11 11 100% 76.96 0.0
07 18:15 Calm 9.66 Fog/Mist CLR 12 12 100% 76.96 0.0
07 17:55 NW 7 9.66 Fog/Mist CLR 12 12 100% 76.94 0.0
07 17:35 NW 9 9.66 Fog/Mist CLR 13 13 100% 76.94 0.0
07 17:15 NW 13 12.87 Fair CLR 13 13 100% 76.96 0.0
07 16:55 N 15 11.27 Fair CLR 13 13 100% 76.96 0.0
07 16:35 NW 26 14.48 Fair CLR 14 13 94% 76.96 0.0
07 16:15 NW 24 14.48 Fair CLR 14 14 100% 76.99 0.0
07 15:55 NW 20 14.48 Fair CLR 15 14 94% 76.99 0.0
07 15:35 NW 13 14.48 Fair CLR 14 14 100% 76.96 0.0
07 15:15 NW 19 14.48 Partly Cloudy SCT006 SCT013 13 13 100% 76.99 0.0
07 14:55 NW 20 G 35 14.48 Partly Cloudy SCT007 SCT013 14 14 100% 76.99 0.0
07 14:35 N 17 G 30 14.48 Partly Cloudy SCT007 SCT013 14 14 100% 76.96 0.0
07 14:15 N 28 12.87 Overcast BKN007 OVC013 13 13 100% 76.99 0.0
07 13:55 N 31 14.48 Mostly Cloudy BKN007 BKN013 13 13 100% 76.96 0.0
07 13:35 N 35 G 46 9.66 Fog/Mist and Breezy FEW007 FEW013 14 14 100% 76.99 0.0
07 13:15 NW 26 12.87 Fair CLR 14 13 94% 76.94 0.0
07 12:55 NW 24 14.48 Fair CLR 15 13 88% 76.94 0.0
07 12:35 NW 13 9.66 Fog/Mist CLR 16 14 88% 76.91 0.0
07 12:15 NW 11 8.05 Fair with Haze CLR 16 13 83% 76.91 0.0
07 11:55 NW 13 11.27 Fair CLR 16 13 83% 76.96 0.0
07 11:35 SW 11 6.44 Fog/Mist CLR 16 14 88% 76.99 0.0
07 11:15 Calm 12.87 Fair CLR 16 13 83% 76.99 0.0
07 10:55 N 7 G 19 14.48 Fair CLR 13 13 100% 77.01 0.0
07 10:35 N 19 11.27 A Few Clouds FEW008 13 13 100% 77.06 0.0
07 10:15 NW 15 8.05 Fog/Mist BKN008 13 13 100% 77.04 0.0
07 09:55 NW 15 8.05 Fog/Mist BKN009 13 13 100% 77.01 0.0
07 09:35 Calm 8.05 Fog/Mist SCT008 13 13 100% 77.01 0.0
07 08:55 N 11 6.44 Fog/Mist OVC006 12 12 100% 76.99 0.0
07 08:35 N 19 4.02 Fog/Mist BKN004 11 11 100% 76.99 0.0
07 08:15 NW 6 4.83 Fog/Mist CLR 11 11 100% 76.91 0.0
07 07:35 Vrbl 7 4.02 Fog/Mist BKN003 BKN007 10 10 100% 9 76.86 0.0
07 07:15 E 7 3.22 Fog/Mist BKN003 10 10 100% 9 76.81 0.0
07 06:55 Calm 4.83 Fog/Mist OVC004 11 11 100% 76.81 0.0
07 06:35 N 13 G 22 6.44 Fog/Mist OVC003 10 10 100% 8 76.81 0.0
07 05:55 Calm 16.09 Fair CLR 8 8 100% 76.78 0.0
07 05:35 Calm 16.09 Partly Cloudy SCT004 9 9 100% 76.76 0.0
07 05:15 Calm 14.48 Overcast OVC004 10 10 100% 76.81 0.0
07 04:55 E 6 16.09 Overcast OVC004 10 10 100% 76.81 0.0
07 04:35 Calm 12.87 Overcast OVC004 11 11 100% 76.84 0.0
07 04:15 N 6 8.05 Fog/Mist OVC004 11 11 100% 76.84 0.0
07 03:55 N 7 4.83 Fog/Mist OVC004 11 11 100% 76.86 0.0
07 03:35 N 11 12.87 Overcast BKN004 OVC008 11 11 100% 76.86 0.0
07 03:15 N 17 3.22 Fog/Mist OVC004 11 11 100% 76.89 0.0
07 02:55 N 19 2.41 Fog/Mist OVC003 11 11 100% 76.86 0.0
07 02:35 NW 13 4.02 Fog/Mist OVC003 11 11 100% 76.86 0.0
07 02:15 NW 17 6.44 Fog/Mist OVC003 11 11 100% 76.84 0.0
07 01:55 NE 6 4.02 Fog/Mist OVC003 10 10 100% 76.84 0.0
07 01:35 NE 7 6.44 Fog/Mist OVC004 10 10 100% 9 76.84 0.0
07 01:15 Calm 8.05 Fog/Mist OVC005 10 10 100% 76.84 0.0
07 00:55 Calm 8.05 Fog/Mist OVC007 10 10 100% 76.86 0.0
07 00:35 Calm 11.27 Overcast OVC008 10 10 100% 76.89 0.0
07 00:15 Calm 14.48 Overcast OVC008 11 11 100% 76.89 0.0
06 23:55 N 6 14.48 Overcast OVC008 11 11 100% 76.89 0.0
06 23:35 NW 15 12.87 Overcast OVC006 11 11 100% 76.86 0.0
06 23:15 N 13 8.05 Fog/Mist OVC005 11 11 100% 76.86 0.0
06 22:55 NW 15 8.05 Fog/Mist OVC005 12 12 100% 76.84 0.0
06 22:35 NW 7 8.05 Fog/Mist OVC005 12 12 100% 76.81 0.0
06 22:15 Calm 8.05 Fog/Mist OVC005 12 12 100% 76.78 0.0
06 21:55 E 6 8.05 Fog/Mist OVC005 12 12 100% 76.78 0.0
06 21:35 Calm 9.66 Fog/Mist OVC006 12 12 100% 76.78 0.0
06 20:55 Calm 9.66 Fog/Mist OVC007 11 11 100% 76.76 0.0
06 20:35 Calm 9.66 Fog/Mist OVC008 11 11 100% 76.76 0.0
06 20:15 Calm 9.66 Fog/Mist OVC009 11 11 100% 76.73 0.0
06 19:55 Calm 9.66 Fog/Mist BKN009 11 11 100% 76.71 0.0
06 19:35 N 6 8.05 Fog/Mist BKN009 12 12 100% 76.71 0.0
06 19:15 NW 6 11.27 Mostly Cloudy BKN009 13 13 100% 76.68 0.0
06 18:55 N 6 8.05 Fog/Mist BKN009 13 13 100% 76.66 0.0
06 18:35 N 6 11.27 Partly Cloudy SCT010 13 13 100% 76.63 0.0
06 18:15 NW 13 8.05 Fog/Mist SCT009 13 13 100% 0 0.0
06 17:55 NW 11 6.44 Fog/Mist BKN007 13 13 100% 76.61 0.0
06 17:35 NW 11 6.44 Fog/Mist BKN006 13 13 100% 76.58 0.0
06 17:15 NW 11 6.44 Fog/Mist FEW003 14 14 100% 76.58 0.0
06 16:55 NW 15 6.44 Fog/Mist FEW003 14 14 100% 76.56 0.0
06 16:35 NW 11 6.44 Fog/Mist CLR 15 15 100% 76.53 0.0
06 16:15 NW 17 6.44 Fog/Mist CLR 15 14 94% 76.53 0.0
06 15:55 NW 15 6.44 Fog/Mist CLR 15 15 100% 76.5 0.0
06 15:35 NW 15 6.44 Fog/Mist CLR 16 15 94% 76.48 0.0
06 15:15 NW 13 6.44 Fog/Mist CLR 16 15 94% 76.5 0.0
06 14:55 NW 15 8.05 Fog/Mist CLR 16 15 94% 76.5 0.0
06 14:35 NW 13 6.44 Fog/Mist CLR 16 15 94% 76.5 0.0
06 14:15 NW 9 8.05 Fog/Mist CLR 16 15 94% 76.5 0.0
06 13:55 W 15 6.44 Fog/Mist CLR 16 15 94% 76.5 0.0
06 13:35 W 11 6.44 Fair with Haze CLR 17 14 83% 76.5 0.0
06 13:15 W 9 11.27 Fair CLR 18 12 68% 76.53 0.0
Date Time (pst) 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)