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.
16 01:55 NW 11 11.27 Overcast OVC007 14 14 100% 76.5 0.0
16 01:35 N 11 11.27 Overcast OVC007 14 14 100% 76.53 0.0
16 01:15 N 7 11.27 Overcast OVC007 14 14 100% 76.53 0.0
16 00:55 N 9 11.27 Overcast OVC007 14 14 100% 76.53 0.0
16 00:35 NW 9 8.05 Fog/Mist OVC006 14 14 100% 76.53 0.0
16 00:15 N 9 8.05 Fog/Mist OVC006 14 14 100% 76.53 0.0
15 23:55 N 6 4.83 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 23:35 NW 11 G 20 6.44 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 23:15 N 11 4.83 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 22:55 NW 11 G 20 6.44 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 22:35 N 11 8.05 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 22:15 N 11 6.44 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 21:55 NW 11 G 24 6.44 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 21:35 N 15 9.66 Fog/Mist OVC005 14 14 100% 76.53 0.0
15 21:15 NW 13 4.83 Fog/Mist OVC006 14 14 100% 76.5 0.0
15 20:55 NW 11 8.05 Fog/Mist BKN006 OVC010 14 14 100% 76.5 0.0
15 20:35 NW 11 2.82 Fog/Mist OVC004 14 14 100% 76.48 0.0
15 19:55 NW 9 1.61 Fog/Mist OVC005 15 15 100% 76.48 0.0
15 19:35 NW 11 4.83 Fog/Mist BKN007 BKN012 15 15 100% 76.48 0.0
15 19:15 NW 15 1.61 Fog/Mist OVC006 15 15 100% 76.48 0.0
15 18:55 NW 11 3.22 Fog/Mist NULL 15 15 100% 76.48 0.0
15 18:35 NW 9 0.00 NULL NULL 0 0 0% 76.48 0.0
15 18:15 N 17 6.44 Fog/Mist OVC007 15 15 100% 76.5 0.0
15 17:55 NW 11 16.09 Overcast BKN008 OVC013 16 15 94% 76.5 0.0
15 17:35 NW 9 G 19 14.48 Overcast OVC011 16 15 94% 76.53 0.0
15 17:15 NW 11 14.48 Mostly Cloudy BKN011 16 15 94% 76.53 0.0
15 16:55 NW 15 14.48 Overcast OVC011 16 15 94% 76.53 0.0
15 16:35 NW 13 14.48 Mostly Cloudy BKN010 16 15 94% 76.53 0.0
15 16:15 NW 19 16.09 Mostly Cloudy BKN011 17 15 88% 76.53 0.0
15 15:55 NW 17 14.48 Mostly Cloudy BKN011 17 15 88% 76.56 0.0
15 15:35 NW 19 14.48 Mostly Cloudy BKN013 17 15 88% 76.56 0.0
15 15:15 NW 17 14.48 Overcast OVC013 18 15 83% 76.56 0.0
15 14:55 NW 15 G 26 14.48 Mostly Cloudy BKN013 18 15 83% 76.58 0.0
15 14:35 NW 15 14.48 Mostly Cloudy BKN014 18 15 83% 76.58 0.0
15 14:15 W 11 G 22 14.48 Overcast OVC016 18 16 88% 76.61 0.0
15 13:55 W 15 14.48 Overcast OVC017 18 15 83% 76.61 0.0
15 13:35 NW 15 14.48 Mostly Cloudy BKN015 17 16 94% 76.61 0.0
15 13:15 W 15 14.48 Mostly Cloudy BKN013 18 15 83% 76.61 0.0
15 12:55 NW 15 14.48 Mostly Cloudy BKN013 18 15 83% 76.58 0.0
15 12:35 NW 13 14.48 Mostly Cloudy BKN014 18 15 83% 76.61 0.0
15 12:15 NW 15 14.48 Mostly Cloudy BKN013 BKN017 18 15 83% 76.61 0.0
15 11:55 NW 11 14.48 Mostly Cloudy BKN015 18 16 88% 76.61 0.0
15 11:35 NW 15 14.48 Partly Cloudy FEW011 SCT017 17 16 94% 76.61 0.0
15 11:15 W 15 14.48 Mostly Cloudy BKN018 17 16 94% 76.61 0.0
15 10:55 W 13 16.09 Mostly Cloudy BKN017 17 16 94% 76.58 0.0
15 10:35 NW 11 16.09 Overcast FEW006 SCT014 OVC019 17 16 94% 76.58 0.0
15 09:55 NW 11 12.87 Mostly Cloudy FEW007 BKN015 BKN027 0 0 0% 76.56 0.0
15 09:35 NW 9 14.48 Mostly Cloudy BKN007 BKN017 BKN021 15 15 100% 76.56 0.0
15 09:15 NW 9 14.48 Mostly Cloudy SCT006 BKN022 15 15 100% 76.56 0.0
15 08:55 NW 9 2.01 Fog/Mist SCT005 BKN008 BKN015 15 15 100% 76.56 0.0
15 08:35 NW 11 11.27 Mostly Cloudy BKN007 BKN014 BKN023 15 15 100% 76.53 0.0
15 08:15 NW 13 11.27 Overcast BKN007 OVC015 15 15 100% 76.53 0.0
15 07:55 NW 7 14.48 Overcast BKN008 BKN013 OVC019 15 15 100% 76.5 0.0
15 07:35 NW 9 4.83 Fog/Mist BKN008 OVC014 15 15 100% 76.5 0.0
15 07:15 NW 6 9.66 Fog/Mist BKN007 BKN013 OVC018 15 15 100% 76.48 0.0
15 06:55 Calm 14.48 Overcast BKN007 OVC020 0 0 0% 76.48 0.0
15 06:35 Calm 14.48 Overcast FEW005 FEW013 OVC020 14 14 100% 76.45 0.0
15 06:15 N 6 14.48 Overcast BKN006 BKN013 OVC019 14 14 100% 76.43 0.0
15 05:55 N 9 4.83 Fog/Mist BKN005 BKN008 OVC018 14 14 100% 76.4 0.0
15 05:35 NW 11 12.87 Overcast BKN006 BKN016 OVC020 14 14 100% 76.4 0.0
15 05:15 NW 9 11.27 Overcast SCT005 BKN014 OVC020 14 14 100% 76.4 0.0
15 04:55 NW 7 4.83 Fog/Mist SCT007 BKN013 OVC020 14 14 100% 76.4 0.0
15 04:35 NW 7 4.02 Fog/Mist SCT006 BKN014 OVC019 14 14 100% 76.4 0.0
15 04:15 NW 9 6.44 Fog/Mist BKN005 BKN016 OVC020 14 14 100% 76.4 0.0
15 03:55 NW 9 4.83 Fog/Mist BKN005 BKN010 OVC017 14 14 100% 76.4 0.0
15 03:35 N 9 4.83 Fog/Mist BKN006 OVC017 14 14 100% 76.4 0.0
15 03:15 NW 13 4.83 Overcast BKN006 OVC016 0 0 0% 76.38 0.0
15 02:55 NW 9 6.44 Fog/Mist BKN006 BKN017 15 15 100% 76.38 0.0
15 02:35 NW 7 4.02 Fog/Mist SCT005 SCT009 OVC016 15 15 100% 76.4 0.0
15 02:15 N 13 4.83 Fog/Mist BKN006 BKN013 OVC017 15 15 100% 76.4 0.0
15 01:55 NW 11 4.83 Fog/Mist BKN005 OVC014 15 15 100% 76.4 0.0
15 01:35 NW 11 2.01 Fog/Mist OVC004 15 15 100% 76.4 0.0
15 01:15 NW 13 4.83 Fog/Mist OVC004 15 15 100% 76.4 0.0
15 00:55 NW 7 4.02 Fog/Mist BKN004 OVC007 15 15 100% 76.4 0.0
15 00:35 NW 9 4.02 Fog/Mist BKN006 BKN011 OVC016 0 0 0% 76.4 0.0
15 00:15 Calm 4.83 Fog/Mist SCT005 OVC017 15 15 100% 76.4 0.0
14 23:55 NW 7 12.87 Overcast BKN005 BKN008 OVC017 15 15 100% 76.4 0.0
14 23:35 NW 7 6.44 Fog/Mist BKN005 BKN013 OVC019 15 15 100% 76.4 0.0
14 23:15 NW 7 8.05 Fog/Mist BKN005 BKN008 OVC017 15 15 100% 76.4 0.0
14 22:55 NW 13 3.22 Fog/Mist OVC005 15 15 100% 76.4 0.0
14 22:35 NW 7 4.02 Fog/Mist BKN005 OVC009 15 15 100% 76.4 0.0
14 22:15 NW 11 4.83 Fog/Mist BKN008 OVC012 15 15 100% 76.38 0.0
14 21:55 NW 9 G 20 12.87 Overcast OVC011 15 15 100% 76.38 0.0
14 21:35 NW 11 14.48 Overcast OVC011 15 15 100% 76.38 0.0
14 21:15 NW 9 12.87 Overcast FEW008 OVC012 0 0 0% 76.35 0.0
14 20:55 NW 9 12.87 Overcast OVC013 15 15 100% 76.33 0.0
14 20:35 NW 9 14.48 Overcast OVC014 15 15 100% 76.33 0.0
14 20:15 NW 13 4.83 Fog/Mist FEW006 OVC012 15 15 100% 76.33 0.0
14 19:55 NW 13 4.02 Fog/Mist OVC010 15 15 100% 76.33 0.0
14 19:35 NW 15 11.27 Overcast OVC012 16 15 94% 76.33 0.0
14 19:15 NW 9 G 19 14.48 Overcast BKN012 OVC016 16 15 94% 76.33 0.0
14 18:55 SW 11 11.27 Overcast SCT009 OVC015 16 16 100% 76.33 0.0
14 18:35 SW 9 12.87 Overcast OVC016 16 16 100% 76.33 0.0
14 18:15 W 7 12.87 Overcast OVC018 16 16 100% 76.33 0.0
14 17:55 W 11 14.48 Overcast OVC019 17 16 94% 76.33 0.0
14 17:35 W 11 11.27 Overcast OVC019 17 16 94% 76.33 0.0
14 17:15 W 15 14.48 Overcast OVC019 17 16 94% 76.33 0.0
14 16:55 W 13 14.48 Mostly Cloudy BKN020 17 16 94% 76.33 0.0
14 16:35 W 11 14.48 A Few Clouds FEW023 18 16 88% 76.33 0.0
14 16:15 SW 11 14.48 Mostly Cloudy BKN022 18 16 88% 76.3 0.0
14 15:55 W 11 14.48 Overcast OVC022 18 16 88% 76.33 0.0
14 15:35 SW 13 14.48 Partly Cloudy SCT023 18 16 88% 76.33 0.0
14 15:15 Vrbl 9 16.09 A Few Clouds FEW018 FEW026 18 16 88% 76.33 0.0
14 14:55 SW 13 12.87 A Few Clouds FEW026 18 16 88% 76.33 0.0
14 14:35 SW 13 14.48 A Few Clouds FEW028 18 16 88% 76.35 0.0
14 14:15 Vrbl 11 14.48 Partly Cloudy SCT025 18 16 88% 76.35 0.0
14 13:55 W 11 16.09 Mostly Cloudy BKN024 BKN030 18 16 88% 76.35 0.0
14 13:35 SW 13 14.48 Overcast FEW015 BKN023 OVC030 18 16 88% 76.35 0.0
14 13:15 SW 11 12.87 Overcast BKN015 OVC023 18 16 88% 76.35 0.0
14 12:55 SW 11 14.48 Overcast BKN016 OVC024 17 16 94% 76.35 0.0
14 12:35 Vrbl 7 14.48 Overcast OVC016 17 16 94% 76.35 0.0
14 12:15 SW 9 14.48 Overcast OVC014 17 16 94% 76.35 0.0
14 11:55 S 7 14.48 Mostly Cloudy FEW007 BKN014 17 16 94% 76.35 0.0
14 11:35 SW 9 12.87 Mostly Cloudy FEW007 BKN012 16 16 100% 76.35 0.0
14 11:15 SW 9 14.48 Overcast OVC012 16 16 100% 76.35 0.0
14 10:55 SW 9 12.87 Overcast OVC013 16 16 100% 76.35 0.0
14 10:35 SW 9 14.48 Overcast FEW005 OVC013 16 16 100% 76.33 0.0
14 09:55 SW 9 8.05 Fog/Mist SCT005 SCT009 BKN013 16 16 100% 76.3 0.0
14 09:35 S 9 14.48 Mostly Cloudy BKN004 BKN008 BKN012 16 16 100% 76.3 0.0
14 09:15 S 9 12.87 Mostly Cloudy BKN004 BKN014 BKN034 16 16 100% 76.28 0.0
14 08:55 S 7 12.87 Overcast BKN005 BKN019 OVC034 16 16 100% 76.28 0.0
14 08:35 S 9 3.22 Overcast BKN004 BKN010 OVC018 0 0 0% 76.28 0.0
14 08:15 Vrbl 6 14.48 Mostly Cloudy BKN005 BKN012 BKN017 15 15 100% 76.25 0.0
14 07:55 Calm 12.87 Mostly Cloudy BKN005 BKN023 15 15 100% 76.25 0.0
14 07:35 Calm 12.87 Partly Cloudy FEW016 SCT022 15 15 100% 76.23 0.0
14 07:15 Calm 1.21 Fog/Mist BKN004 BKN008 BKN013 15 15 100% 76.23 0.0
14 06:55 Vrbl 7 0.80 Fog/Mist OVC005 15 15 100% 76.2 0.0
14 06:35 Calm 11.27 Overcast BKN005 BKN008 OVC024 15 15 100% 76.17 0.0
14 06:15 Calm 11.27 Overcast SCT003 BKN007 OVC022 15 15 100% 76.15 0.0
14 05:55 Calm 2.01 Fog/Mist OVC003 15 15 100% 76.15 0.0 0.05
14 05:35 W 6 1.61 Fog/Mist BKN004 OVC008 15 15 100% 76.15 0.0
14 05:15 W 9 2.01 Fog/Mist BKN004 BKN010 OVC016 15 15 100% 76.15 0.0
14 04:55 Calm 11.27 Overcast SCT005 SCT012 OVC021 15 15 100% 76.15 0.0 0.03
14 04:35 W 6 4.83 Fog/Mist BKN004 OVC009 15 15 100% 76.12 0.0
14 04:15 W 7 1.21 Fog/Mist OVC003 15 15 100% 76.12 0.0
14 03:55 W 6 8.05 Fog/Mist OVC005 15 15 100% 76.12 0.0
14 03:35 Calm 11.27 Overcast BKN004 OVC008 15 15 100% 76.12 0.0
14 03:15 W 6 11.27 Overcast BKN004 OVC009 15 15 100% 76.12 0.0
14 02:55 W 6 4.83 Fog/Mist BKN004 OVC007 15 15 100% 76.12 0.0 0.03
14 02:35 W 7 2.41 Fog/Mist OVC004 15 15 100% 76.12 0.0
14 02:15 W 9 6.44 Fog/Mist OVC003 15 15 100% 76.12 0.0
14 01:55 Calm 8.05 Fog/Mist OVC003 15 15 100% 76.12 0.0
14 01:35 W 6 1.21 Fog/Mist OVC003 15 15 100% 76.15 0.0
14 01:15 W 7 3.22 Overcast BKN003 OVC009 0 0 0% 76.15 0.0
14 00:55 W 6 3.22 Fog/Mist OVC004 15 15 100% 76.15 0.0
14 00:35 W 9 3.22 Fog/Mist OVC003 15 15 100% 76.15 0.0
14 00:15 SW 9 3.22 Fog/Mist OVC004 15 15 100% 76.12 0.0
13 23:55 Calm 4.02 Fog/Mist BKN005 OVC008 15 15 100% 76.15 0.0
13 23:35 SW 9 4.02 Overcast SCT005 BKN009 OVC019 0 0 0% 76.15 0.0
13 23:15 SW 7 11.27 Overcast FEW006 OVC012 15 15 100% 76.15 0.0
13 22:55 SW 7 12.87 Overcast SCT011 OVC020 15 15 100% 76.12 0.0
13 22:35 W 7 11.27 Overcast FEW013 OVC019 15 15 100% 76.12 0.0
13 22:15 W 7 12.87 Overcast OVC019 15 15 100% 76.12 0.0
13 21:55 W 9 12.87 Overcast OVC018 15 15 100% 76.12 0.0
13 21:35 W 9 14.48 Overcast OVC018 15 15 100% 76.12 0.0
13 21:15 W 9 12.87 Overcast OVC019 15 15 100% 76.1 0.0
13 20:55 W 9 14.48 Overcast OVC019 15 15 100% 76.07 0.0
13 20:35 W 6 14.48 Overcast OVC019 15 15 100% 76.07 0.0
13 20:15 Calm 14.48 Overcast OVC018 15 15 100% 76.05 0.0
13 19:55 Calm 12.87 Overcast OVC018 15 15 100% 76.05 0.0
13 19:35 W 9 11.27 Overcast OVC016 15 15 100% 76.05 0.0
13 19:15 W 7 9.66 Fog/Mist OVC012 15 15 100% 76.05 0.0
13 18:55 W 11 G 20 8.05 Fog/Mist BKN009 OVC014 15 15 100% 76.05 0.0
13 18:35 Vrbl 7 12.87 Overcast OVC014 16 16 100% 76.02 0.0
13 18:15 SW 9 12.87 Overcast OVC014 16 16 100% 76.02 0.0
13 17:55 S 11 G 22 12.87 Overcast BKN014 OVC021 17 16 94% 76.02 0.0
13 17:35 Vrbl 9 G 20 12.87 Overcast SCT014 OVC020 17 16 94% 76.02 0.0
13 17:15 SW 13 G 22 14.48 Overcast OVC020 17 16 94% 76 0.0
13 16:55 SW 13 14.48 Overcast FEW006 OVC020 17 16 94% 76 0.0
13 16:35 SW 17 14.48 Partly Cloudy SCT007 SCT016 0 0 0% 76 0.0
13 16:15 SW 17 14.48 A Few Clouds FEW008 FEW030 18 16 88% 76 0.0
13 15:55 SW 15 14.48 Mostly Cloudy BKN029 18 16 88% 76 0.0
13 15:35 SW 15 G 28 14.48 Partly Cloudy SCT029 18 16 88% 76 0.0
13 15:15 SW 15 14.48 A Few Clouds FEW027 18 16 88% 76 0.0
13 14:55 Vrbl 11 G 26 14.48 Mostly Cloudy BKN027 18 15 83% 76 0.0
13 14:35 SW 15 14.48 Mostly Cloudy BKN026 18 15 83% 76 0.0
13 14:15 S 13 14.48 Overcast OVC023 18 15 83% 76 0.0
13 13:55 SW 11 14.48 NULL NULL 18 15 83% 76 0.0
13 13:35 Vrbl 11 G 28 14.48 Overcast OVC019 19 15 78% 76.02 0.0
13 13:15 S 11 12.87 Overcast OVC017 18 15 83% 76.02 0.0
13 12:55 SW 17 14.48 Overcast BKN015 OVC020 17 15 88% 76.02 0.0
13 12:35 SW 13 12.87 Overcast OVC014 0 0 0% 76.05 0.0
13 12:15 Vrbl 11 11.27 Mostly Cloudy BKN015 BKN021 17 15 88% 76.05 0.0
13 11:55 Vrbl 7 G 19 6.44 Fog/Mist FEW013 17 15 88% 76.05 0.0
13 11:35 SW 11 2.01 Fog/Mist SCT013 16 16 100% 76.05 0.0
13 11:15 Vrbl 11 2.01 Fog/Mist SCT013 15 15 100% 76.05 0.0
13 10:55 SW 15 1.61 Fog/Mist SCT005 SCT027 15 15 100% 76.02 0.0
13 10:35 W 17 G 33 6.44 Fog/Mist SCT005 BKN020 OVC027 16 15 94% 76.02 0.0
13 10:15 S 22 G 33 14.48 Overcast BKN020 OVC025 17 16 94% 76 0.0
13 09:55 S 20 11.27 Overcast FEW016 OVC025 17 16 94% 76 0.0
13 09:35 S 24 14.48 Overcast BKN017 OVC024 17 15 88% 75.97 0.0
13 09:15 S 19 14.48 Overcast BKN018 OVC026 17 15 88% 75.97 0.0
13 08:55 S 17 14.48 Overcast BKN016 OVC024 16 15 94% 75.97 0.0
13 08:35 S 19 14.48 Overcast OVC017 16 15 94% 75.95 0.0
13 08:15 S 22 14.48 Overcast OVC017 16 15 94% 75.95 0.0
13 07:55 S 19 12.87 Overcast OVC016 15 15 100% 75.92 0.0
13 07:35 S 20 14.48 Overcast OVC017 15 15 100% 75.92 0.0
13 07:15 S 22 12.87 Overcast OVC018 15 15 100% 75.9 0.0
13 06:55 S 20 12.87 Overcast OVC016 15 15 100% 75.9 0.0
13 06:35 S 22 11.27 Overcast OVC014 15 15 100% 75.9 0.0
13 06:15 S 22 14.48 Overcast OVC013 15 15 100% 75.9 0.0
13 05:55 S 22 14.48 Overcast OVC014 15 15 100% 75.87 0.0
13 05:35 S 22 14.48 Overcast OVC015 15 15 100% 75.87 0.0
13 05:15 S 26 14.48 Overcast OVC015 15 15 100% 75.87 0.0
13 04:55 S 15 G 31 11.27 Overcast OVC014 15 15 100% 75.87 0.0
13 04:35 S 19 14.48 Overcast OVC012 15 15 100% 75.87 0.0
13 04:15 S 19 9.66 Fog/Mist OVC010 15 15 100% 75.87 0.0
13 03:55 S 17 6.44 Fog/Mist OVC009 15 15 100% 75.87 0.0
13 03:35 S 19 8.05 Fog/Mist OVC009 15 15 100% 75.87 0.0
13 03:15 S 15 9.66 Fog/Mist OVC009 14 14 100% 75.87 0.0
13 02:55 S 15 8.05 Fog/Mist BKN007 OVC011 14 14 100% 75.84 0.0
13 02:35 S 11 6.44 Overcast OVC009 0 0 0% 75.84 0.0
13 02:15 S 13 4.83 Fog/Mist OVC009 15 15 100% 75.84 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)