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.
03 23:15 SE 11 16.09 Overcast BKN013 OVC018 13 12 94% 76.15 0.0
03 22:55 SE 11 16.09 Overcast BKN012 OVC021 12 12 100% 76.15 0.0
03 22:35 SE 6 14.48 Overcast BKN014 OVC022 0 0 0% 76.15 0.0
03 22:15 Calm 16.09 Overcast BKN012 BKN016 OVC050 12 12 100% 76.15 0.0
03 21:55 Calm 16.09 Overcast FEW011 SCT024 OVC050 12 12 100% 76.12 0.0
03 21:35 Calm 14.48 Overcast FEW010 OVC050 12 12 100% 76.12 0.0
03 21:15 S 7 16.09 Partly Cloudy SCT050 12 12 100% 76.1 0.0
03 20:55 SW 7 16.09 Mostly Cloudy SCT013 BKN026 BKN034 13 13 100% 76.1 0.0
03 20:35 SW 6 16.09 Mostly Cloudy SCT013 SCT026 BKN050 13 12 94% 76.07 0.0
03 20:15 S 9 16.09 NULL NULL 13 12 94% 76.07 0.0
03 19:55 SW 9 16.09 NULL NULL 13 12 94% 76.05 0.0
03 19:35 SW 11 14.48 Overcast FEW016 FEW021 OVC050 13 12 94% 76.05 0.0
03 19:15 SW 9 16.09 Overcast FEW017 FEW025 OVC050 14 12 88% 76.05 0.0
03 18:55 SW 11 16.09 Overcast FEW016 OVC050 14 12 88% 76.05 0.0
03 18:35 SW 7 14.48 Overcast FEW016 OVC050 14 12 88% 76.07 0.0
03 18:15 SW 11 16.09 Overcast OVC050 15 13 88% 76.05 0.0
03 17:55 SW 9 16.09 Overcast FEW013 OVC050 15 13 88% 76.05 0.0
03 17:35 SW 15 14.48 Overcast OVC055 15 13 88% 76.05 0.0
03 17:15 SW 9 16.09 Mostly Cloudy FEW030 BKN055 15 13 88% 76.05 0.0
03 16:55 Vrbl 11 16.09 Mostly Cloudy FEW015 FEW022 BKN030 15 13 88% 76.02 0.0
03 16:35 SW 15 16.09 Overcast OVC050 15 13 88% 76.02 0.0
03 16:15 SW 15 16.09 Overcast OVC055 15 12 82% 76.05 0.0
03 15:55 SW 11 16.09 Overcast FEW016 OVC055 15 12 82% 76.05 0.0
03 15:35 SW 15 16.09 Overcast FEW015 FEW021 OVC050 15 13 88% 76.05 0.0
03 15:15 SW 11 16.09 Overcast FEW015 OVC050 15 13 88% 76.05 0.0
03 14:55 SW 13 14.48 Overcast FEW013 OVC050 15 13 88% 76.05 0.0
03 14:35 SW 9 16.09 Overcast FEW013 OVC050 16 13 83% 76.05 0.0
03 14:15 SW 9 16.09 Overcast OVC050 15 13 88% 76.05 0.0
03 13:55 SW 11 14.48 Overcast OVC049 15 13 88% 76.05 0.0
03 13:35 Vrbl 11 16.09 Overcast OVC048 15 13 88% 76.05 0.0
03 13:15 Vrbl 7 16.09 Overcast FEW031 OVC047 16 13 83% 76.05 0.0
03 12:55 SW 11 16.09 Overcast SCT031 OVC045 15 12 82% 76.05 0.0
03 12:35 Vrbl 6 16.09 Overcast OVC041 14 12 88% 76.05 0.0
03 12:15 SW 9 16.09 Overcast BKN037 OVC044 14 13 94% 76.07 0.0
03 11:55 SW 13 12.87 Overcast BKN014 SCT027 OVC042 14 13 94% 76.07 0.0
03 11:35 S 13 16.09 Overcast SCT010 BKN013 OVC028 14 13 94% 76.05 0.0
03 11:15 S 11 14.48 Mostly Cloudy SCT012 BKN042 14 13 94% 76.05 0.0
03 10:55 S 11 16.09 Mostly Cloudy SCT011 BKN042 14 13 94% 76.05 0.0
03 10:35 S 9 14.48 Overcast SCT012 OVC043 13 13 100% 76.05 0.0
03 10:15 SE 9 14.48 Overcast OVC041 13 13 100% 76.05 0.0
03 09:55 S 11 14.48 Overcast FEW008 FEW028 OVC041 13 13 100% 76.05 0.0
03 09:35 Calm 16.09 Mostly Cloudy FEW007 FEW028 BKN041 13 13 100% 76.02 0.0
03 09:15 Calm 11.27 Partly Cloudy FEW006 FEW017 SCT035 12 12 100% 76.02 0.0
03 08:55 NW 7 9.66 Fog/Mist FEW005 FEW017 SCT029 12 12 100% 76.02 0.0 0.03
03 08:35 Calm 6.44 Partly Cloudy FEW015 FEW026 SCT030 0 0 0% 76.02 0.0
03 08:15 Calm 0.80 Unknown Precip Fog/Mist OVC005 12 12 100% 76 0.0
03 07:55 Calm 1.21 Fog/Mist OVC006 12 12 100% 76 0.0
03 07:35 Calm 16.09 Mostly Cloudy BKN016 BKN020 BKN035 12 12 100% 75.97 0.0
03 07:15 Calm 8.05 Fog/Mist SCT016 BKN023 12 12 100% 75.95 0.0
03 06:55 Calm 2.82 Fog/Mist SCT006 BKN010 OVC023 12 12 100% 75.92 0.0
03 06:35 Vrbl 6 14.48 Overcast BKN010 BKN016 OVC021 12 12 100% 75.92 0.0
03 06:15 SW 6 16.09 Mostly Cloudy FEW010 SCT013 BKN020 12 12 100% 75.9 0.0
03 05:55 SW 6 9.66 Fog/Mist SCT013 BKN020 OVC030 12 12 100% 75.87 0.0
03 05:35 Calm 4.83 Fog/Mist BKN013 BKN018 OVC033 12 12 100% 75.87 0.0
03 05:15 Calm 8.05 Fog/Mist SCT013 BKN017 OVC034 12 12 100% 75.87 0.0
03 04:55 Calm 14.48 Overcast FEW014 OVC033 12 12 100% 75.87 0.0
03 04:35 Calm 14.48 Overcast OVC029 12 12 100% 75.9 0.0
03 04:15 Calm 14.48 Overcast FEW011 OVC026 12 12 100% 75.9 0.0
03 03:55 NW 6 14.48 Overcast BKN012 BKN020 OVC027 12 12 100% 75.9 0.0
03 03:35 NW 6 14.48 Overcast SCT013 SCT020 OVC028 12 12 100% 75.9 0.0
03 03:15 NW 9 14.48 Overcast OVC027 12 12 100% 75.87 0.0
03 02:55 NW 7 14.48 Overcast SCT014 OVC027 12 12 100% 75.9 0.0
03 02:35 NW 9 16.09 Overcast SCT014 OVC026 12 12 100% 75.9 0.0
03 02:15 NW 7 14.48 Overcast OVC024 12 12 100% 75.9 0.0
03 01:55 NW 7 16.09 Overcast OVC023 0 0 0% 75.92 0.0
03 01:35 NW 9 14.48 Overcast OVC024 12 12 100% 75.95 0.0
03 01:15 NW 7 16.09 Overcast FEW015 OVC024 12 12 100% 75.95 0.0
03 00:55 NW 9 12.87 Overcast FEW011 BKN022 OVC026 12 12 100% 75.97 0.0
03 00:35 NW 7 14.48 Overcast FEW011 BKN022 OVC026 12 12 100% 75.97 0.0
03 00:15 NW 9 12.87 Overcast SCT012 BKN018 OVC022 12 12 100% 75.95 0.0
02 23:55 NW 9 12.87 Overcast BKN013 OVC019 12 12 100% 75.95 0.0
02 23:35 NW 6 14.48 Overcast OVC021 12 12 100% 75.95 0.0
02 23:15 NW 6 12.87 Overcast OVC024 12 12 100% 75.97 0.0
02 22:55 N 9 12.87 Overcast FEW011 OVC023 12 12 100% 75.97 0.0
02 22:35 NW 11 14.48 Overcast FEW012 BKN020 OVC024 12 12 100% 76 0.0
02 22:15 NW 7 12.87 Overcast FEW014 OVC023 12 12 100% 76 0.0
02 21:55 NW 9 12.87 Overcast FEW011 OVC022 12 12 100% 76 0.0
02 21:35 NW 11 11.27 Overcast BKN011 BKN016 OVC021 12 12 100% 76 0.0
02 21:15 NW 11 11.27 Overcast SCT010 SCT014 OVC022 12 12 100% 75.97 0.0
02 20:55 NW 9 11.27 Overcast FEW013 OVC022 12 12 100% 75.97 0.0
02 20:35 NW 13 11.27 Overcast SCT013 OVC020 12 12 100% 75.95 0.0
02 20:15 NW 13 9.66 Fog/Mist SCT011 OVC020 12 12 100% 75.95 0.0
02 19:55 NW 15 9.66 Fog/Mist FEW011 OVC022 12 12 100% 75.92 0.0
02 19:35 NW 15 9.66 Fog/Mist OVC021 13 12 94% 75.92 0.0
02 19:15 NW 13 8.05 Fog/Mist OVC021 13 12 94% 75.92 0.0
02 18:55 NW 11 8.05 Fog/Mist FEW013 OVC020 13 12 94% 75.95 0.0
02 18:35 NW 11 8.05 Fog/Mist OVC021 13 12 94% 75.95 0.0
02 18:15 NW 13 8.05 Fog/Mist FEW013 OVC023 13 12 94% 75.95 0.0
02 17:55 NW 13 8.05 Fog/Mist OVC023 13 12 94% 75.95 0.0
02 17:35 NW 13 8.05 Fog/Mist OVC023 13 12 94% 75.97 0.0
02 17:15 NW 13 8.05 Fog/Mist OVC022 13 12 94% 75.97 0.0
02 16:55 NW 13 9.66 Fog/Mist FEW014 OVC023 13 12 94% 75.97 0.0
02 16:35 NW 9 8.05 Fog/Mist FEW013 OVC023 13 13 100% 76 0.0
02 16:15 NW 11 8.05 Fog/Mist FEW014 OVC024 14 12 88% 76 0.0
02 15:55 Vrbl 9 6.44 Fog/Mist FEW016 OVC024 14 13 94% 76.02 0.0
02 15:35 W 13 8.05 Fog/Mist FEW016 OVC024 14 12 88% 76.05 0.0
02 15:15 W 9 8.05 Fog/Mist OVC024 14 12 88% 76.07 0.0
02 14:55 W 11 8.05 Fog/Mist OVC023 14 12 88% 76.07 0.0
02 14:35 W 6 8.05 Fog/Mist BKN017 OVC022 13 12 94% 76.1 0.0
02 14:15 W 13 8.05 Fog/Mist OVC019 14 12 88% 76.1 0.0
02 13:55 W 13 9.66 Fog/Mist OVC022 14 12 88% 76.1 0.0
02 13:35 W 13 8.05 Fog/Mist OVC022 14 12 88% 76.12 0.0
02 13:15 Vrbl 9 8.05 Fog/Mist OVC020 14 12 88% 76.12 0.0
02 12:55 NW 13 6.44 Fog/Mist BKN016 BKN021 13 12 94% 76.15 0.0
02 12:35 NW 13 8.05 Fog/Mist SCT014 OVC022 14 12 88% 76.15 0.0
02 12:15 W 13 9.66 Fog/Mist OVC022 14 12 88% 76.15 0.0
02 11:55 W 13 9.66 Fog/Mist OVC021 14 12 88% 76.15 0.0
02 11:35 W 11 8.05 Fog/Mist OVC018 14 12 88% 76.15 0.0
02 11:15 W 11 6.44 Fog/Mist OVC017 13 12 94% 76.15 0.0
02 10:55 Vrbl 7 4.83 Fog/Mist OVC015 13 12 94% 76.15 0.0
02 10:35 W 11 8.05 Fog/Mist OVC015 13 12 94% 76.12 0.0
02 10:15 NW 7 6.44 Fog/Mist OVC015 13 12 94% 76.12 0.0
02 09:55 NW 11 8.05 Fog/Mist OVC015 13 12 94% 76.12 0.0
02 09:35 NW 7 9.66 Fog/Mist OVC015 13 12 94% 76.12 0.0
02 09:15 NW 7 6.44 Fog/Mist OVC014 13 12 94% 76.12 0.0
02 08:55 NW 9 4.02 Fog/Mist OVC012 12 12 100% 76.1 0.0
02 08:35 NW 11 4.02 Fog/Mist OVC012 12 12 100% 76.1 0.0
02 08:15 W 6 4.02 Fog/Mist OVC011 12 12 100% 76.07 0.0
02 07:55 W 9 4.83 Fog/Mist OVC011 12 12 100% 76.07 0.0
02 07:35 Calm 6.44 Fog/Mist OVC010 12 12 100% 76.07 0.0
02 07:15 Calm 4.02 Fog/Mist OVC009 12 12 100% 76.05 0.0
02 06:55 Calm 4.83 Fog/Mist OVC010 12 12 100% 76.02 0.0
02 06:35 Calm 9.66 Fog/Mist OVC010 12 12 100% 76.02 0.0
02 06:15 W 9 8.05 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 05:55 W 6 8.05 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 05:35 W 9 11.27 Overcast OVC012 12 12 100% 76.02 0.0
02 05:15 W 6 8.05 Fog/Mist OVC011 12 12 100% 76.02 0.0
02 04:55 W 7 9.66 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 04:35 Calm 9.66 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 04:15 Calm 8.05 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 03:55 Calm 9.66 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 03:35 Calm 9.66 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 03:15 Calm 9.66 Fog/Mist OVC012 12 12 100% 76.02 0.0
02 02:55 W 7 8.05 Fog/Mist OVC010 12 12 100% 76.05 0.0
02 02:35 NW 6 9.66 Fog/Mist OVC011 12 12 100% 76.07 0.0
02 02:15 NW 7 11.27 Overcast OVC012 12 12 100% 76.07 0.0
02 01:55 NW 9 11.27 Overcast OVC012 12 12 100% 76.1 0.0
02 01:35 NW 7 11.27 Overcast OVC012 12 12 100% 76.1 0.0
02 01:15 Calm 9.66 Fog/Mist OVC011 12 12 100% 76.1 0.0
02 00:55 W 11 9.66 Fog/Mist OVC010 12 12 100% 76.1 0.0
02 00:35 Calm 9.66 Fog/Mist OVC009 12 12 100% 76.12 0.0
02 00:15 NW 11 9.66 Fog/Mist OVC009 12 12 100% 76.1 0.0
01 23:55 NW 6 11.27 Overcast OVC009 12 12 100% 76.1 0.0
01 23:35 N 9 11.27 Overcast OVC010 12 12 100% 76.1 0.0
01 23:15 NW 11 9.66 Fog/Mist OVC009 12 12 100% 76.12 0.0
01 22:55 NW 15 11.27 Overcast OVC010 12 12 100% 76.12 0.0
01 22:35 N 11 11.27 Overcast OVC010 12 12 100% 76.12 0.0
01 22:15 NW 9 11.27 Overcast OVC009 12 12 100% 76.12 0.0
01 21:55 NW 11 9.66 Fog/Mist OVC010 12 12 100% 76.12 0.0
01 21:35 NW 9 11.27 Overcast OVC009 12 12 100% 76.12 0.0
01 21:15 NW 13 11.27 Overcast OVC009 12 12 100% 76.12 0.0
01 20:55 NW 11 11.27 Overcast OVC009 12 12 100% 76.1 0.0
01 20:35 NW 11 11.27 Overcast OVC009 12 12 100% 76.07 0.0
01 20:15 NW 9 12.87 Overcast OVC010 12 12 100% 76.07 0.0
01 19:55 NW 17 8.05 Fog/Mist OVC010 12 12 100% 76.07 0.0
01 19:35 NW 15 9.66 Fog/Mist OVC010 13 12 94% 76.07 0.0
01 19:15 N 11 12.87 Overcast OVC011 13 12 94% 76.05 0.0
01 18:55 NW 19 11.27 Overcast OVC011 13 12 94% 76.07 0.0
01 18:35 NW 17 11.27 Overcast OVC012 13 12 94% 76.07 0.0
01 18:15 NW 15 11.27 Overcast OVC012 13 12 94% 76.07 0.0
01 17:55 NW 15 14.48 Overcast OVC012 13 12 94% 76.07 0.0
01 17:35 NW 13 11.27 Overcast OVC013 13 12 94% 76.07 0.0
01 17:15 NW 15 12.87 Overcast OVC013 13 12 94% 76.1 0.0
01 16:55 NW 13 11.27 Overcast OVC013 14 13 94% 76.1 0.0
01 16:35 NW 9 12.87 Overcast OVC013 14 13 94% 76.1 0.0
01 16:15 NW 17 11.27 Overcast OVC013 14 13 94% 76.12 0.0
01 15:55 Vrbl 11 12.87 Overcast OVC013 14 13 94% 76.15 0.0
01 15:35 NW 11 12.87 Overcast OVC013 14 12 88% 76.15 0.0
01 15:15 NW 11 12.87 Overcast OVC013 14 13 94% 76.17 0.0
01 14:55 NW 15 14.48 Overcast OVC013 14 13 94% 76.2 0.0
01 14:35 NW 13 9.66 Fog/Mist OVC013 14 13 94% 76.2 0.0
01 14:15 N 11 11.27 Overcast OVC013 14 13 94% 76.2 0.0
01 13:55 NW 11 11.27 Overcast OVC013 14 13 94% 76.23 0.0
01 13:35 NW 11 12.87 Overcast OVC013 14 13 94% 76.23 0.0
01 13:15 NW 11 11.27 Overcast OVC013 14 13 94% 76.23 0.0
01 12:55 NW 11 11.27 Overcast OVC013 14 13 94% 76.25 0.0
01 12:35 Vrbl 9 11.27 Overcast OVC013 13 13 100% 76.25 0.0
01 12:15 NW 11 9.66 Fog/Mist OVC013 13 13 100% 76.28 0.0
01 11:55 NW 9 8.05 Fog/Mist OVC013 13 12 94% 76.28 0.0
01 11:35 NW 11 11.27 Mostly Cloudy BKN012 13 13 100% 76.28 0.0
01 11:15 NW 9 8.05 Fog/Mist SCT009 SCT013 13 13 100% 76.28 0.0
01 10:55 NW 9 11.27 Partly Cloudy SCT009 SCT013 13 13 100% 76.28 0.0
01 10:35 NW 11 6.44 Fog/Mist BKN008 13 13 100% 76.28 0.0
01 09:15 NW 9 6.44 Fog/Mist OVC008 12 12 100% 76.25 0.0
01 08:55 NW 6 8.05 Fog/Mist OVC007 12 12 100% 76.25 0.0
01 08:35 Calm 4.83 Fog/Mist OVC007 12 12 100% 76.23 0.0
01 08:15 NW 13 4.83 Fog/Mist OVC007 12 12 100% 76.23 0.0
01 07:55 NW 9 6.44 Fog/Mist OVC007 12 12 100% 76.2 0.0
01 07:35 NW 7 6.44 Fog/Mist OVC007 12 12 100% 76.2 0.0
01 07:15 NW 6 4.83 Fog/Mist OVC007 12 12 100% 76.17 0.0
01 06:55 NW 7 6.44 Fog/Mist OVC007 12 12 100% 76.15 0.0
01 06:35 Calm 6.44 Fog/Mist OVC007 12 12 100% 76.15 0.0
01 06:15 NW 7 8.05 Fog/Mist OVC007 12 12 100% 76.15 0.0
01 05:55 NW 6 6.44 Fog/Mist OVC007 12 12 100% 76.15 0.0
01 05:35 NW 7 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
01 05:15 NW 9 9.66 Fog/Mist OVC008 12 12 100% 76.12 0.0
01 04:55 NW 7 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
01 04:35 NW 11 9.66 Fog/Mist OVC008 12 12 100% 76.15 0.0
01 04:15 NW 11 8.05 Fog/Mist OVC008 12 12 100% 76.15 0.0
01 03:55 NW 11 9.66 Fog/Mist OVC008 12 12 100% 76.12 0.0
01 03:35 NW 11 8.05 Fog/Mist OVC008 12 12 100% 76.12 0.0
01 03:15 N 11 G 20 8.05 Fog/Mist OVC008 12 12 100% 76.12 0.0
01 02:55 N 9 G 19 9.66 Fog/Mist OVC008 12 12 100% 76.12 0.0
01 02:35 N 11 9.66 Fog/Mist OVC008 12 12 100% 76.15 0.0
01 02:15 N 11 9.66 Fog/Mist OVC008 12 12 100% 76.15 0.0
01 01:55 NW 11 9.66 Fog/Mist OVC009 12 12 100% 76.15 0.0
01 01:35 NW 17 9.66 Fog/Mist OVC009 12 12 100% 76.17 0.0
01 01:15 NW 15 G 24 8.05 Fog/Mist OVC009 12 12 100% 76.17 0.0
01 00:55 NW 15 9.66 Fog/Mist OVC009 12 12 100% 76.2 0.0
01 00:35 NW 15 9.66 Fog/Mist OVC008 12 12 100% 76.2 0.0
01 00:15 N 13 9.66 Fog/Mist OVC008 12 12 100% 76.2 0.0
30 23:55 N 15 9.66 Fog/Mist OVC008 12 12 100% 76.2 0.0
30 23:35 N 13 9.66 Fog/Mist OVC008 12 12 100% 76.2 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)