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.
25 14:55 NW 24 9.66 Partly Cloudy with Haze SCT013 19 16 83% 76.35 0.0
25 14:35 NW 22 G 33 11.27 Mostly Cloudy BKN013 19 16 83% 76.35 0.0
25 14:15 NW 24 11.27 Mostly Cloudy BKN013 19 16 83% 76.35 0.0
25 13:55 NW 24 12.87 Mostly Cloudy BKN013 19 16 83% 76.38 0.0
25 13:35 NW 19 G 30 11.27 Mostly Cloudy BKN013 19 16 83% 76.38 0.0
25 13:15 NW 20 11.27 Mostly Cloudy BKN013 19 16 83% 76.38 0.0
25 12:55 NW 24 12.87 Mostly Cloudy BKN013 19 16 83% 76.38 0.0
25 12:35 NW 22 G 31 9.66 Fog/Mist OVC013 18 16 88% 76.38 0.0
25 12:15 NW 22 11.27 Overcast OVC013 18 16 88% 76.4 0.0
25 11:55 NW 19 G 30 11.27 Overcast OVC013 18 16 88% 76.4 0.0
25 11:35 N 20 11.27 Overcast OVC013 18 16 88% 76.4 0.0
25 11:15 NW 19 9.66 Fog/Mist OVC013 18 16 88% 76.4 0.0
25 10:55 NW 19 G 30 9.66 Fog/Mist OVC013 18 16 88% 76.38 0.0
25 10:35 NW 19 9.66 Fog/Mist BKN013 17 16 94% 76.38 0.0
25 10:15 NW 19 9.66 Fog/Mist BKN013 17 16 94% 76.38 0.0
25 09:55 NW 19 9.66 Fog/Mist OVC013 17 16 94% 76.35 0.0
25 09:35 N 20 8.05 Fog/Mist OVC013 17 16 94% 76.35 0.0
25 09:15 NW 20 G 31 8.05 Fog/Mist OVC013 17 16 94% 76.33 0.0
25 08:55 NW 24 8.05 Fog/Mist BKN012 17 16 94% 76.33 0.0
25 08:35 N 17 8.05 Fog/Mist BKN011 16 16 100% 76.33 0.0
25 08:15 N 17 6.44 Fog/Mist SCT009 BKN013 16 16 100% 76.3 0.0
25 07:55 N 13 6.44 Fog/Mist BKN010 BKN014 16 16 100% 76.3 0.0
25 07:35 N 11 8.05 Fog/Mist OVC011 16 16 100% 76.28 0.0
25 07:15 N 11 6.44 Fog/Mist BKN011 15 15 100% 76.25 0.0
25 06:55 N 13 6.44 Fog/Mist BKN011 15 15 100% 76.25 0.0
25 06:35 N 9 6.44 Fog/Mist OVC011 15 15 100% 76.25 0.0
25 06:15 N 7 6.44 Fog/Mist OVC010 15 15 100% 76.25 0.0
25 05:55 Calm 8.05 Fog/Mist OVC010 15 15 100% 76.25 0.0
25 05:35 Calm 9.66 Fog/Mist OVC011 13 13 100% 76.23 0.0
25 05:15 Calm 9.66 Overcast OVC012 0 0 0% 76.2 0.0
25 04:55 Calm 9.66 Fog/Mist BKN013 12 12 100% 76.2 0.0
25 04:35 Calm 9.66 Fog/Mist BKN013 11 11 100% 76.17 0.0
25 04:15 Calm 9.66 Fog/Mist SCT013 12 12 100% 76.17 0.0
25 03:55 Calm 9.66 Fog/Mist SCT013 12 12 100% 76.17 0.0
25 03:35 Calm 8.05 Fog/Mist FEW013 13 13 100% 76.17 0.0
25 03:15 Calm 8.05 Fog/Mist FEW013 FEW026 14 14 100% 76.17 0.0
25 02:55 N 6 9.66 Fog/Mist CLR 14 14 100% 76.17 0.0
25 02:35 NW 9 9.66 Fog/Mist FEW013 14 14 100% 76.17 0.0
25 01:55 N 7 8.05 Fair CLR 0 0 0% 76.2 0.0
25 01:35 Calm 8.05 Fog/Mist FEW012 14 14 100% 76.2 0.0
25 01:15 NW 7 8.05 Partly Cloudy SCT012 SCT030 0 0 0% 76.2 0.0
25 00:55 NW 15 8.05 Fog/Mist BKN011 BKN030 15 15 100% 76.2 0.0
25 00:35 NW 17 9.66 Fog/Mist OVC010 16 16 100% 76.2 0.0
25 00:15 NW 11 9.66 Fog/Mist OVC010 16 16 100% 76.2 0.0
24 23:55 NW 15 9.66 Fog/Mist OVC010 16 16 100% 76.2 0.0
24 23:35 NW 13 9.66 Fog/Mist OVC009 16 16 100% 76.2 0.0
24 23:15 N 19 9.66 Fog/Mist OVC010 16 16 100% 76.17 0.0
24 22:55 N 19 11.27 Overcast OVC010 16 16 100% 76.17 0.0
24 22:35 NW 17 11.27 Overcast BKN009 OVC013 16 16 100% 76.17 0.0
24 22:15 N 13 9.66 Fog/Mist OVC011 16 16 100% 76.17 0.0
24 21:55 NW 19 9.66 Mostly Cloudy BKN012 0 0 0% 76.17 0.0
24 21:35 NW 17 9.66 Fog/Mist BKN013 16 16 100% 76.17 0.0
24 21:15 NW 19 9.66 Fog/Mist BKN012 16 16 100% 76.15 0.0
24 20:55 NW 19 9.66 Mostly Cloudy BKN012 0 0 0% 76.15 0.0
24 20:35 N 17 11.27 Mostly Cloudy BKN012 16 16 100% 76.15 0.0
24 20:15 NW 19 G 30 11.27 Mostly Cloudy BKN012 16 16 100% 76.15 0.0
24 19:55 NW 22 11.27 Overcast OVC012 17 16 94% 76.15 0.0
24 19:35 NW 24 G 33 12.87 Overcast OVC012 17 16 94% 76.15 0.0
24 19:15 NW 19 11.27 Overcast OVC011 17 16 94% 76.15 0.0
24 18:55 NW 17 G 28 11.27 Overcast OVC012 17 16 94% 76.15 0.0
24 18:35 N 20 11.27 Overcast OVC012 18 16 88% 76.15 0.0
24 18:15 NW 15 G 24 11.27 Overcast OVC012 18 16 88% 76.15 0.0
24 17:55 NW 19 12.87 Overcast OVC013 18 16 88% 76.15 0.0
24 17:35 N 22 12.87 Overcast OVC013 18 16 88% 76.17 0.0
24 17:15 N 24 12.87 Overcast OVC013 19 16 83% 76.17 0.0
24 16:35 NW 20 11.27 Mostly Cloudy BKN013 18 16 88% 76.17 0.0
24 15:55 NW 20 14.48 Partly Cloudy SCT013 19 16 83% 76.2 0.0
24 15:35 NW 20 G 31 12.87 Fair CLR 19 16 83% 76.2 0.0
24 15:15 N 20 12.87 Fair CLR 0 0 0% 76.2 0.0
24 14:55 NW 20 G 33 12.87 A Few Clouds FEW013 0 0 0% 76.23 0.0
24 14:35 NW 26 12.87 A Few Clouds FEW013 19 16 83% 76.23 0.0
24 14:15 NW 26 14.48 Partly Cloudy SCT013 19 16 83% 76.23 0.0
24 13:55 NW 24 12.87 Overcast OVC013 18 16 88% 76.25 0.0
24 13:35 NW 20 12.87 Overcast OVC013 19 16 83% 76.25 0.0
24 13:15 NW 20 G 30 12.87 Overcast OVC013 19 16 83% 76.28 0.0
24 12:55 NW 20 11.27 Overcast OVC012 19 16 83% 76.28 0.0
24 12:35 NW 20 12.87 Overcast OVC012 19 16 83% 76.28 0.0
24 12:15 N 22 12.87 Overcast OVC013 18 16 88% 76.28 0.0
24 11:55 NW 24 12.87 Overcast OVC013 18 16 88% 76.28 0.0
24 11:35 NW 20 12.87 Overcast OVC013 18 16 88% 76.3 0.0
24 11:15 NW 19 G 30 12.87 Overcast OVC013 18 16 88% 76.28 0.0
24 10:55 NW 17 G 26 12.87 Overcast OVC013 18 16 88% 76.28 0.0
24 10:35 NW 17 12.87 Overcast OVC013 18 16 88% 76.28 0.0
24 10:15 NW 17 G 30 11.27 Overcast OVC013 17 16 94% 76.28 0.0
24 09:55 N 20 11.27 Overcast OVC012 17 15 88% 76.28 0.0
24 09:35 N 22 G 33 14.48 Overcast OVC012 17 15 88% 76.28 0.0
24 09:15 NW 24 12.87 Overcast OVC012 17 16 94% 76.28 0.0
24 08:55 NW 20 11.27 Overcast SCT010 OVC013 16 16 100% 76.25 0.0
24 08:35 NW 22 11.27 Mostly Cloudy BKN009 BKN014 16 16 100% 76.25 0.0
24 08:15 NW 20 G 33 11.27 Mostly Cloudy BKN009 BKN014 16 16 100% 76.23 0.0
24 07:55 N 20 11.27 Mostly Cloudy BKN008 BKN012 16 16 100% 76.23 0.0
24 07:35 N 20 9.66 Fog/Mist BKN008 OVC012 15 15 100% 76.2 0.0
24 07:15 N 19 11.27 Overcast BKN009 OVC013 15 15 100% 76.2 0.0
24 06:55 N 15 G 26 9.66 Fog/Mist BKN009 OVC013 15 15 100% 76.17 0.0
24 06:35 N 15 G 26 11.27 Overcast OVC009 15 15 100% 76.17 0.0
24 06:15 N 20 G 30 9.66 Fog/Mist OVC009 15 15 100% 76.17 0.0
24 05:55 N 19 11.27 Overcast OVC009 15 15 100% 76.17 0.0
24 05:35 N 19 12.87 Overcast OVC009 15 15 100% 76.15 0.0
24 05:15 N 15 G 26 12.87 Overcast OVC008 15 15 100% 76.15 0.0
24 04:55 N 17 12.87 Overcast OVC008 15 15 100% 76.15 0.0
24 04:35 N 20 12.87 Overcast OVC008 15 15 100% 76.12 0.0
24 04:15 N 20 12.87 Overcast OVC007 15 15 100% 76.12 0.0
24 03:55 N 17 12.87 Overcast OVC007 0 0 0% 76.15 0.0
24 03:35 N 19 11.27 Overcast OVC008 15 15 100% 76.15 0.0
24 03:15 N 19 12.87 Overcast OVC008 15 15 100% 76.15 0.0
24 02:35 N 19 12.87 Overcast OVC008 16 16 100% 76.15 0.0
24 01:35 NW 13 11.27 Overcast OVC009 15 15 100% 76.2 0.0
24 01:15 NW 17 11.27 Overcast OVC009 15 15 100% 76.2 0.0
24 00:55 NW 11 11.27 Overcast OVC008 15 15 100% 76.23 0.0
24 00:35 Vrbl 9 11.27 Overcast OVC009 0 0 0% 76.23 0.0
23 23:55 N 7 11.27 Overcast OVC009 15 15 100% 76.23 0.0
23 23:35 NW 13 11.27 Overcast BKN009 OVC013 15 15 100% 76.23 0.0
23 23:15 NW 15 G 28 12.87 Overcast OVC010 15 15 100% 76.23 0.0
23 22:55 NW 17 11.27 Overcast OVC010 15 15 100% 76.23 0.0
23 22:35 N 15 12.87 Overcast OVC010 16 16 100% 76.25 0.0
23 22:15 N 15 G 26 11.27 Overcast OVC010 16 16 100% 76.25 0.0
23 21:55 N 22 12.87 Overcast OVC010 16 16 100% 76.25 0.0
23 21:35 N 19 11.27 Overcast OVC010 16 16 100% 76.25 0.0
23 21:15 N 17 G 28 11.27 Overcast OVC010 16 16 100% 76.23 0.0
23 20:55 N 20 12.87 Overcast OVC010 16 16 100% 76.23 0.0
23 20:35 N 22 11.27 Overcast OVC010 16 16 100% 76.23 0.0
23 20:15 NW 20 11.27 Overcast OVC009 16 16 100% 76.23 0.0
23 19:55 NW 17 11.27 Overcast OVC009 16 16 100% 76.23 0.0
23 19:35 NW 17 11.27 Overcast OVC010 16 16 100% 76.23 0.0
23 19:15 NW 20 9.66 Fog/Mist OVC011 0 0 0% 76.2 0.0
23 18:55 N 17 11.27 Overcast OVC012 17 16 94% 76.2 0.0
23 18:35 NW 15 G 28 12.87 Overcast OVC013 0 0 0% 76.2 0.0
23 18:15 NW 22 12.87 Overcast OVC013 17 16 94% 76.23 0.0
23 17:55 NW 26 14.48 Overcast OVC013 17 16 94% 76.23 0.0
23 17:35 NW 20 12.87 Overcast OVC013 17 16 94% 76.25 0.0
23 17:15 NW 20 12.87 Mostly Cloudy BKN013 18 16 88% 76.25 0.0
23 16:55 NW 20 14.48 A Few Clouds FEW013 18 16 88% 76.25 0.0
23 16:35 NW 19 G 31 11.27 Fair CLR 18 16 88% 76.25 0.0
23 16:15 NW 20 11.27 A Few Clouds FEW013 0 0 0% 76.28 0.0
23 15:55 NW 26 G 37 12.87 Partly Cloudy SCT013 18 16 88% 76.28 0.0
23 15:35 NW 26 12.87 Mostly Cloudy BKN012 BKN017 0 0 0% 76.28 0.0
23 15:15 NW 24 G 33 14.48 Overcast OVC012 17 16 94% 76.3 0.0
23 14:55 NW 24 12.87 Overcast OVC012 18 16 88% 76.3 0.0
23 14:35 NW 22 14.48 Overcast OVC012 18 16 88% 76.3 0.0
23 14:15 NW 28 14.48 Overcast OVC013 18 15 83% 76.33 0.0
23 13:55 N 24 G 35 14.48 Overcast OVC013 18 15 83% 76.33 0.0
23 13:35 NW 20 14.48 Overcast OVC013 18 16 88% 76.35 0.0
23 13:15 NW 22 12.87 Overcast OVC013 18 16 88% 76.35 0.0
23 12:55 NW 20 14.48 Overcast OVC013 17 15 88% 76.35 0.0
23 12:35 NW 22 G 31 14.48 Overcast OVC013 17 15 88% 76.38 0.0
23 12:15 NW 20 12.87 Overcast OVC013 17 16 94% 76.38 0.0
23 11:55 NW 15 G 28 12.87 Overcast OVC013 17 16 94% 76.4 0.0
23 11:35 NW 19 11.27 Mostly Cloudy BKN013 17 16 94% 76.38 0.0
23 11:15 NW 20 11.27 Mostly Cloudy BKN012 16 16 100% 76.38 0.0
23 10:55 NW 19 12.87 Mostly Cloudy BKN009 0 0 0% 76.38 0.0
23 10:35 N 17 G 26 11.27 Mostly Cloudy BKN008 16 16 100% 76.38 0.0
23 10:15 NW 19 11.27 Overcast OVC008 16 15 94% 76.38 0.0
23 09:55 N 15 G 28 11.27 Overcast OVC008 16 15 94% 76.38 0.0
23 09:35 NW 20 11.27 Overcast OVC009 16 15 94% 76.38 0.0
23 09:15 NW 20 12.87 Overcast OVC010 16 15 94% 76.35 0.0
23 08:55 NW 19 G 28 11.27 Overcast OVC009 16 15 94% 76.35 0.0
23 08:35 NW 17 12.87 Overcast OVC009 16 16 100% 76.35 0.0
23 08:15 N 19 12.87 Overcast OVC009 16 16 100% 76.35 0.0
23 07:35 NW 19 11.27 Overcast OVC008 15 15 100% 76.35 0.0
23 07:15 N 17 11.27 Overcast OVC007 15 15 100% 76.35 0.0
23 06:55 NW 19 11.27 Overcast OVC007 15 15 100% 76.33 0.0
23 06:35 N 17 8.05 Fog/Mist OVC006 15 15 100% 76.33 0.0
23 06:15 N 11 9.66 Fog/Mist OVC005 15 15 100% 76.3 0.0
23 05:55 N 13 6.44 Fog/Mist OVC004 15 15 100% 76.3 0.0
23 05:35 N 9 G 28 4.83 Fog/Mist OVC004 15 15 100% 76.3 0.0
23 05:15 N 13 6.44 Fog/Mist OVC003 15 15 100% 76.3 0.0
23 04:55 N 17 8.05 Fog/Mist OVC004 15 15 100% 76.28 0.0
23 04:35 N 13 11.27 Overcast OVC004 15 15 100% 76.28 0.0
23 04:15 N 13 G 22 12.87 Overcast OVC006 15 15 100% 76.28 0.0
23 03:55 NW 15 12.87 Overcast OVC008 15 15 100% 76.3 0.0
23 03:35 N 13 G 22 12.87 Overcast OVC008 15 15 100% 76.3 0.0
23 02:55 N 11 9.66 Fog/Mist OVC008 15 15 100% 76.3 0.0
23 02:35 Calm 9.66 Fog/Mist OVC008 15 15 100% 76.33 0.0
23 02:15 Calm 8.05 Fog/Mist BKN009 OVC013 15 15 100% 76.33 0.0
23 01:55 N 7 9.66 Fog/Mist BKN008 BKN012 15 15 100% 76.33 0.0
23 01:35 NW 9 9.66 Fog/Mist OVC008 16 16 100% 76.33 0.0
23 01:15 Vrbl 11 9.66 Fog/Mist BKN007 OVC010 16 16 100% 76.33 0.0
23 00:55 N 9 G 22 9.66 Overcast OVC005 0 0 0% 76.35 0.0
23 00:35 N 11 8.05 Fog/Mist OVC005 16 16 100% 76.35 0.0
22 23:55 N 7 G 19 8.05 Fog/Mist OVC006 16 16 100% 76.35 0.0
22 23:35 N 11 8.05 Mostly Cloudy BKN006 0 0 0% 76.35 0.0
22 23:15 N 11 8.05 Fog/Mist FEW006 16 16 100% 76.38 0.0
22 22:55 N 11 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 22:35 NW 11 G 22 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 22:15 N 13 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 21:55 N 11 8.05 Fog/Mist CLR 16 16 100% 76.38 0.0
22 21:35 N 13 9.66 Fog/Mist CLR 16 16 100% 76.38 0.0
22 21:15 N 11 G 20 8.05 Fog/Mist CLR 16 16 100% 76.35 0.0
22 20:35 NW 15 8.05 Fog/Mist CLR 16 16 100% 76.35 0.0
22 20:15 NW 11 9.66 Fog/Mist CLR 16 16 100% 76.35 0.0
22 19:55 NW 15 9.66 Fog/Mist CLR 17 17 100% 76.35 0.0
22 19:35 NW 15 11.27 Mostly Cloudy FEW008 BKN020 17 17 100% 76.35 0.0
22 19:15 NW 15 9.66 Fog/Mist OVC020 18 17 94% 76.35 0.0
22 18:55 NW 17 11.27 Mostly Cloudy FEW008 BKN020 17 17 100% 76.35 0.0
22 18:35 NW 11 11.27 A Few Clouds FEW009 FEW022 18 17 94% 76.35 0.0
22 18:15 NW 9 12.87 Fair CLR 18 17 94% 76.35 0.0
22 17:55 NW 11 14.48 Fair CLR 19 18 94% 76.38 0.0
22 17:35 W 9 14.48 Fair CLR 19 17 88% 76.38 0.0
22 17:15 NW 11 12.87 Fair CLR 19 17 88% 76.4 0.0
22 16:55 Vrbl 7 12.87 Fair CLR 19 17 88% 76.4 0.0
22 16:35 W 11 14.48 Fair CLR 18 18 100% 76.43 0.0
22 16:15 W 11 14.48 Fair CLR 18 17 94% 76.43 0.0
22 15:55 Vrbl 9 14.48 Fair CLR 19 17 88% 76.45 0.0
22 15:35 Vrbl 9 14.48 Fair CLR 0 0 0% 76.45 0.0
22 15:15 W 11 14.48 Fair CLR 19 17 88% 76.45 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)