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.
04 01:55 E 7 0.00 NULL NULL 13 13 100% 76.28 0.0
04 01:35 E 6 9.66 Fog/Mist SCT011 14 14 100% 76.3 0.0
04 01:15 N 9 8.05 Fog/Mist OVC011 15 15 100% 76.3 0.0
04 00:55 Vrbl 7 6.44 Fog/Mist OVC012 15 15 100% 76.3 0.0
04 00:35 N 6 4.83 Fog/Mist OVC012 15 15 100% 76.3 0.0
04 00:15 NW 9 6.44 Fog/Mist OVC012 15 15 100% 76.3 0.0
03 23:55 N 9 6.44 Fog/Mist OVC012 15 15 100% 76.3 0.0
03 23:35 N 11 6.44 Fog/Mist OVC012 15 15 100% 76.33 0.0
03 23:15 N 7 4.83 Fog/Mist OVC013 15 15 100% 76.33 0.0
03 22:55 N 7 4.83 Fog/Mist OVC013 15 15 100% 76.33 0.0
03 22:35 Calm 4.83 Fog/Mist OVC013 15 15 100% 76.33 0.0
03 22:15 N 6 6.44 Fog/Mist BKN013 15 15 100% 76.35 0.0
03 21:55 NW 15 6.44 Fog/Mist OVC013 16 15 94% 76.35 0.0
03 21:35 NW 13 6.44 Fog/Mist OVC013 15 15 100% 76.35 0.0
03 21:15 NW 11 6.44 Fog/Mist OVC013 15 15 100% 76.35 0.0
03 20:55 NW 13 6.44 Fog/Mist OVC013 15 15 100% 76.35 0.0
03 20:35 NW 19 G 28 6.44 Fog/Mist BKN013 15 15 100% 76.35 0.0
03 20:15 N 17 G 30 6.44 Fog/Mist SCT013 15 15 100% 76.35 0.0
03 19:55 N 22 G 31 6.44 Fog/Mist OVC014 16 15 94% 76.35 0.0
03 19:35 N 24 G 35 8.05 Fog/Mist OVC014 16 15 94% 76.38 0.0
03 19:15 N 22 G 31 6.44 Fog/Mist OVC014 16 15 94% 76.38 0.0
03 18:55 N 24 G 35 6.44 Fog/Mist BKN014 16 15 94% 76.38 0.0
03 18:35 N 20 G 35 8.05 Fog/Mist FEW014 16 15 94% 76.35 0.0
03 18:15 N 28 G 41 8.05 Fog/Mist FEW014 17 15 88% 76.35 0.0
03 17:55 N 26 8.05 Fog/Mist FEW014 17 15 88% 76.35 0.0
03 17:35 NW 28 8.05 A Few Clouds with Haze FEW013 17 15 88% 76.35 0.0
03 17:15 N 20 G 31 8.05 A Few Clouds with Haze FEW013 17 15 88% 76.35 0.0
03 16:55 NW 24 9.66 Partly Cloudy with Haze SCT013 18 15 83% 76.35 0.0
03 16:35 NW 22 9.66 A Few Clouds with Haze FEW015 18 15 83% 76.35 0.0
03 16:15 NW 22 9.66 Partly Cloudy with Haze SCT016 18 15 83% 76.35 0.0
03 15:55 NW 26 8.05 A Few Clouds with Haze FEW014 18 15 83% 76.35 0.0
03 15:35 N 24 8.05 A Few Clouds with Haze FEW014 18 15 83% 76.38 0.0
03 15:15 NW 20 G 30 8.05 Fair with Haze CLR 18 15 83% 76.38 0.0
03 14:55 NW 19 8.05 Fair with Haze CLR 18 15 83% 76.38 0.0
03 14:35 NW 20 8.05 Fair with Haze CLR 18 15 83% 76.4 0.0
03 14:15 NW 26 9.66 Fair with Haze CLR 18 15 83% 76.4 0.0
03 13:55 N 22 9.66 A Few Clouds with Haze FEW022 18 15 83% 76.4 0.0
03 13:35 NW 26 9.66 Partly Cloudy with Haze SCT022 18 15 83% 76.43 0.0
03 13:15 NW 24 G 33 9.66 A Few Clouds with Haze FEW025 18 15 83% 76.45 0.0
03 12:55 NW 28 G 39 9.66 A Few Clouds with Haze FEW023 18 14 78% 76.45 0.0
03 12:35 NW 28 9.66 Partly Cloudy with Haze SCT017 SCT023 19 15 78% 76.43 0.0
03 12:15 N 24 G 35 11.27 Overcast BKN016 OVC020 18 14 78% 76.45 0.0
03 11:55 N 24 8.05 Overcast with Haze OVC018 18 14 78% 76.45 0.0
03 11:35 NW 24 11.27 Overcast BKN016 OVC021 18 15 83% 76.43 0.0
03 11:15 NW 20 G 31 9.66 Fog/Mist BKN015 BKN022 BKN028 17 15 88% 76.43 0.0
03 10:55 N 22 G 33 9.66 Overcast with Haze SCT014 OVC022 17 14 83% 76.43 0.0
03 10:35 NW 26 8.05 Fog/Mist BKN014 OVC023 17 15 88% 76.4 0.0
03 10:15 NW 26 G 37 9.66 Mostly Cloudy with Haze BKN014 BKN021 BKN026 17 15 88% 76.38 0.0
03 09:55 NW 30 9.66 Overcast with Haze BKN015 OVC023 17 15 88% 76.4 0.0
03 09:35 NW 31 G 43 9.66 Fog/Mist SCT016 BKN024 BKN029 17 15 88% 76.4 0.0
03 09:15 NW 28 G 39 8.05 Fog/Mist FEW015 BKN022 BKN029 17 15 88% 76.4 0.0
03 08:55 NW 30 9.66 Fog/Mist BKN018 OVC023 16 15 94% 76.38 0.0
03 08:35 NW 26 G 39 9.66 Fog/Mist OVC022 16 14 88% 76.38 0.0
03 08:15 NW 22 G 35 8.05 Fog/Mist SCT017 OVC024 16 14 88% 76.38 0.0
03 07:55 NW 22 8.05 Fog/Mist SCT016 BKN021 OVC027 16 15 94% 76.38 0.0
03 07:35 NW 19 G 33 9.66 Fog/Mist FEW016 SCT020 BKN025 16 14 88% 76.38 0.0
03 07:15 NW 19 G 31 9.66 Fog/Mist FEW017 SCT023 OVC065 15 14 94% 76.38 0.0
03 06:55 NW 22 G 33 11.27 Overcast BKN015 BKN023 OVC028 16 15 94% 76.35 0.0
03 06:35 N 17 G 28 11.27 Overcast BKN016 OVC022 16 15 94% 76.35 0.0
03 06:15 NW 22 G 33 11.27 Overcast BKN016 OVC022 16 15 94% 76.33 0.0
03 05:55 NW 19 11.27 Overcast BKN017 OVC023 16 15 94% 76.33 0.0
03 05:35 NW 19 11.27 Overcast BKN015 OVC020 16 15 94% 76.3 0.0
03 05:15 NW 17 G 35 11.27 Overcast BKN015 OVC020 16 15 94% 76.3 0.0
03 04:55 NW 19 G 28 11.27 Overcast BKN015 OVC021 16 15 94% 76.3 0.0
03 04:35 NW 15 11.27 Overcast OVC016 16 15 94% 76.3 0.0
03 04:15 N 19 G 31 11.27 Overcast OVC016 16 15 94% 76.3 0.0
03 03:55 NW 15 11.27 Overcast OVC015 16 15 94% 76.3 0.0
03 03:35 NW 19 11.27 Overcast OVC014 16 15 94% 76.3 0.0
03 03:15 NW 13 11.27 Overcast OVC014 16 15 94% 76.3 0.0
03 02:55 NW 19 11.27 Overcast BKN013 OVC019 16 15 94% 76.3 0.0
03 02:35 NW 17 G 28 11.27 Overcast SCT012 OVC019 16 16 100% 76.3 0.0
03 02:15 NW 22 11.27 Overcast BKN011 OVC018 16 16 100% 76.3 0.0
03 01:55 NW 20 11.27 Mostly Cloudy SCT010 BKN014 BKN020 16 16 100% 76.3 0.0
03 01:35 NW 17 11.27 Partly Cloudy FEW011 FEW018 SCT023 16 16 100% 76.3 0.0
03 01:15 NW 19 11.27 Overcast SCT011 BKN018 OVC075 16 16 100% 76.3 0.0
03 00:55 NW 15 9.66 Fog/Mist SCT011 SCT015 OVC070 16 16 100% 76.3 0.0
03 00:35 NW 13 11.27 Mostly Cloudy SCT012 SCT024 BKN070 16 16 100% 76.3 0.0
03 00:15 NW 13 11.27 Mostly Cloudy SCT009 BKN014 BKN075 16 16 100% 76.3 0.0
02 23:55 NW 15 11.27 Overcast BKN009 BKN012 OVC085 16 16 100% 76.3 0.0
02 23:35 NW 11 11.27 Mostly Cloudy BKN011 BKN015 16 16 100% 76.33 0.0
02 23:15 NW 15 12.87 Overcast BKN010 OVC014 16 16 100% 76.33 0.0
02 22:55 NW 11 11.27 Overcast SCT008 BKN012 OVC038 16 16 100% 76.3 0.0
02 22:35 NW 13 11.27 Overcast OVC008 16 16 100% 76.3 0.0
02 22:15 NW 13 11.27 Overcast BKN008 BKN018 OVC035 17 17 100% 76.3 0.0
02 21:55 NW 13 8.05 Fog/Mist SCT009 BKN017 OVC100 17 17 100% 76.3 0.0 0.03
02 21:35 NW 11 6.44 Fog/Mist SCT012 BKN085 OVC100 17 17 100% 76.3 0.0
02 21:15 NW 11 8.05 Fog/Mist SCT007 BKN037 OVC110 17 17 100% 76.3 0.0
02 20:55 NW 11 6.44 Fog/Mist BKN007 OVC013 17 17 100% 76.3 0.0
02 20:35 Calm 2.01 Light Rain Fog/Mist BKN009 OVC014 17 17 100% 76.28 0.0
02 20:15 Calm 3.22 Fog/Mist SCT011 BKN016 OVC026 16 16 100% 76.28 0.0
02 19:55 Calm 4.83 Fog/Mist BKN010 OVC016 17 17 100% 76.28 0.0
02 19:35 Calm 8.05 Fog/Mist BKN011 BKN017 OVC029 17 17 100% 76.28 0.0
02 19:15 Calm 4.83 Fog/Mist SCT014 BKN018 OVC030 17 17 100% 76.28 0.0
02 18:55 Calm 6.44 Fog/Mist OVC017 17 16 94% 76.28 0.0
02 18:35 Calm 6.44 Fog/Mist BKN018 17 16 94% 76.28 0.0
02 18:15 Calm 8.05 Fog/Mist FEW013 SCT018 17 16 94% 76.28 0.0
02 17:55 W 6 8.05 Fog/Mist FEW012 17 16 94% 76.25 0.0
02 17:35 W 7 8.05 Fog/Mist CLR 17 16 94% 76.25 0.0
02 17:15 W 7 8.05 Fog/Mist FEW012 18 16 88% 76.28 0.0
02 16:55 SW 7 8.05 Fog/Mist BKN013 18 16 88% 76.28 0.0
02 16:35 Vrbl 7 8.05 Fog/Mist BKN013 18 16 88% 76.3 0.0
02 16:15 W 9 9.66 Fog/Mist FEW009 BKN013 17 16 94% 76.3 0.0
02 15:55 W 9 9.66 Fog/Mist FEW009 18 16 88% 76.3 0.0
02 15:35 W 11 9.66 Fog/Mist CLR 18 16 88% 76.3 0.0
02 15:15 W 11 9.66 Fog/Mist CLR 17 16 94% 76.3 0.0
02 14:55 W 9 11.27 Fair CLR 17 16 94% 76.3 0.0
02 14:35 W 13 11.27 Fair CLR 17 16 94% 76.3 0.0
02 14:15 W 9 9.66 Fog/Mist FEW012 17 16 94% 76.3 0.0
02 13:55 W 7 9.66 Fog/Mist SCT012 17 16 94% 76.33 0.0
02 13:35 W 9 11.27 Partly Cloudy FEW008 SCT012 17 16 94% 76.33 0.0
02 13:15 Calm 9.66 Fog/Mist BKN006 BKN012 17 16 94% 76.33 0.0
02 12:55 NW 9 11.27 Overcast OVC005 17 16 94% 76.35 0.0
02 12:35 Calm 9.66 Fog/Mist BKN007 16 16 100% 76.35 0.0
02 12:15 W 7 9.66 Fog/Mist SCT016 17 16 94% 76.35 0.0
02 11:55 S 13 11.27 Overcast FEW009 OVC016 18 16 88% 76.35 0.0
02 11:35 Vrbl 9 12.87 Mostly Cloudy SCT008 BKN017 17 17 100% 76.33 0.0
02 11:15 SE 9 11.27 Overcast OVC007 17 17 100% 76.33 0.0
02 10:55 Vrbl 7 11.27 Overcast BKN007 OVC012 17 17 100% 76.35 0.0
02 10:35 Vrbl 9 9.66 Fog/Mist BKN007 BKN012 16 16 100% 76.33 0.0
02 10:15 Vrbl 7 12.87 Mostly Cloudy SCT006 BKN013 16 16 100% 76.33 0.0
02 09:55 SE 7 9.66 Fog/Mist FEW006 BKN013 16 16 100% 76.3 0.0
02 09:35 Calm 3.22 Fog/Mist SCT004 BKN014 16 16 100% 76.3 0.0
02 09:15 NW 6 1.61 Fog/Mist OVC003 15 15 100% 76.3 0.0
02 08:55 Calm 0.80 Fog OVC003 15 15 100% 76.3 0.0
02 08:35 NW 11 0.80 Fog OVC003 15 15 100% 76.3 0.0
02 08:15 NW 7 0.80 Fog OVC003 15 15 100% 76.25 0.0
02 07:55 NW 6 4.02 Fog/Mist OVC003 15 15 100% 76.25 0.0 0.03
02 07:35 Calm 3.22 Light Rain Fog/Mist OVC003 15 15 100% 76.23 0.0
02 07:15 NW 7 4.83 Fog/Mist OVC003 15 15 100% 76.23 0.0
02 06:55 W 7 8.05 Fog/Mist OVC003 15 15 100% 76.23 0.0 0.03
02 06:35 W 7 4.02 Unknown Precip Fog/Mist OVC002 16 16 100% 76.23 0.0
02 06:15 Calm 1.61 Unknown Precip Fog/Mist OVC002 16 16 100% 76.23 0.0
02 05:55 Calm 2.01 Unknown Precip Fog/Mist OVC002 16 16 100% 76.2 0.0 0.1
02 05:35 Calm 0.40 Light Rain Fog OVC002 16 16 100% 76.17 0.0
02 05:15 NW 6 0.24 Unknown Precip Fog OVC002 16 16 100% 76.17 0.0
02 04:55 NW 7 2.01 Unknown Precip Fog/Mist BKN003 BKN010 OVC020 16 16 100% 76.17 0.0 0.03
02 04:35 NW 7 2.82 Fog/Mist BKN003 BKN007 OVC021 16 16 100% 76.17 0.0
02 04:15 N 9 1.61 Fog/Mist OVC003 16 16 100% 76.17 0.0
02 03:55 NW 9 0.80 Fog/Mist OVC003 16 16 100% 76.17 0.0
02 03:35 N 13 0.40 Light Rain Fog OVC002 16 16 100% 76.17 0.0
02 03:15 NW 13 0.40 Fog OVC002 16 16 100% 76.17 0.0
02 02:55 SW 6 3.22 Fog/Mist OVC003 17 17 100% 76.17 0.0 0.03
02 02:35 Calm 1.21 Fog/Mist OVC003 17 17 100% 76.17 0.0
02 02:15 N 6 0.40 Light Rain Fog OVC003 17 17 100% 76.17 0.0
02 01:55 Calm 1.21 Fog/Mist OVC002 17 17 100% 76.2 0.0 0.18
02 01:35 SE 6 1.21 Fog/Mist OVC002 17 17 100% 76.2 0.0
02 01:15 S 6 1.61 Fog/Mist OVC003 17 17 100% 76.2 0.0
02 00:55 SE 9 1.21 Fog/Mist OVC003 17 17 100% 76.2 0.0 0.15
02 00:35 SE 11 1.21 Fog/Mist OVC003 17 17 100% 76.2 0.0
02 00:15 SE 11 1.21 Fog/Mist OVC004 17 17 100% 76.23 0.0
01 23:55 S 11 1.21 Fog/Mist OVC007 17 17 100% 76.23 0.0
01 23:35 Calm 6.44 Fog/Mist OVC011 18 18 100% 76.2 0.0
01 23:15 Calm 6.44 Fog/Mist OVC011 18 18 100% 76.2 0.0
01 22:55 SE 9 6.44 Fog/Mist OVC010 18 18 100% 76.23 0.0
01 22:35 SE 11 9.66 Fog/Mist OVC010 18 17 94% 76.2 0.0
01 22:15 SE 7 11.27 Overcast OVC011 18 17 94% 76.2 0.0
01 21:55 SE 6 8.05 Fog/Mist BKN011 OVC016 18 18 100% 76.23 0.0
01 21:35 SE 9 8.05 Fog/Mist OVC011 18 18 100% 76.23 0.0
01 21:15 Calm 6.44 Fog/Mist OVC016 17 17 100% 76.2 0.0
01 20:55 SE 9 9.66 Fog/Mist BKN018 OVC023 17 17 100% 76.2 0.0
01 20:35 SE 9 11.27 Overcast SCT020 OVC026 17 17 100% 76.2 0.0
01 20:15 SE 11 8.05 Fog/Mist BKN022 OVC028 17 17 100% 76.2 0.0
01 19:55 SE 7 4.02 Unknown Precip Fog/Mist BKN022 OVC026 17 17 100% 76.2 0.0
01 19:35 SE 9 12.87 Overcast OVC021 17 17 100% 76.2 0.0
01 19:15 S 13 9.66 Fog/Mist FEW009 FEW015 OVC021 17 17 100% 76.2 0.0
01 18:55 SE 13 9.66 Fog/Mist FEW010 BKN023 OVC042 18 18 100% 76.2 0.0
01 18:35 SE 11 8.05 Fog/Mist FEW016 SCT026 BKN033 18 18 100% 76.2 0.0
01 18:15 SE 6 4.83 Fog/Mist FEW017 SCT025 BKN032 18 18 100% 76.2 0.0
01 17:55 S 7 8.05 Fog/Mist FEW016 FEW021 BKN027 18 17 94% 76.2 0.0
01 17:35 SE 11 4.83 Fog/Mist FEW016 FEW029 18 17 94% 76.2 0.0
01 17:15 SE 13 4.83 Unknown Precip Fog/Mist FEW016 BKN026 18 17 94% 76.23 0.0
01 16:55 E 15 4.83 Fog/Mist FEW019 OVC026 18 17 94% 76.23 0.0
01 16:35 SE 9 4.83 Fog/Mist FEW015 BKN025 BKN030 18 17 94% 76.23 0.0
01 16:15 Calm 6.44 Fog/Mist FEW015 BKN023 OVC029 18 17 94% 76.23 0.0
01 15:55 Calm 12.87 Overcast BKN025 OVC030 19 17 88% 76.23 0.0
01 15:35 S 13 G 26 6.44 Fog/Mist BKN022 OVC026 19 17 88% 76.23 0.0
01 15:15 SW 19 9.66 Overcast with Haze BKN023 OVC035 19 16 83% 76.23 0.0
01 14:55 S 19 9.66 Overcast with Haze OVC037 20 15 73% 76.23 0.0
01 14:35 SW 17 G 26 9.66 Overcast with Haze OVC039 20 16 78% 76.23 0.0
01 14:15 S 20 12.87 Overcast FEW024 OVC038 21 14 64% 76.23 0.0
01 13:55 S 20 G 31 11.27 Mostly Cloudy SCT025 BKN035 BKN043 21 14 64% 76.23 0.0
01 13:35 S 22 G 33 9.66 Overcast with Haze BKN025 BKN030 OVC044 21 14 64% 76.23 0.0
01 13:15 S 20 G 31 12.87 Overcast OVC026 20 14 69% 76.25 0.0
01 12:55 SW 19 11.27 Overcast OVC026 20 14 69% 76.28 0.0
01 12:35 S 17 12.87 Overcast OVC023 20 16 78% 76.28 0.0
01 12:15 S 11 11.27 Overcast OVC023 19 16 83% 76.28 0.0
01 11:55 S 13 14.48 Overcast OVC024 20 16 78% 76.28 0.0
01 11:35 S 13 14.48 Overcast OVC024 20 16 78% 76.28 0.0
01 11:15 S 17 12.87 Overcast BKN024 OVC032 19 16 83% 76.3 0.0
01 10:55 S 17 12.87 Overcast BKN025 OVC032 19 16 83% 76.3 0.0
01 10:35 S 17 12.87 Overcast OVC026 19 16 83% 76.3 0.0
01 10:15 S 19 12.87 Overcast OVC026 19 16 83% 76.3 0.0
01 09:55 S 17 12.87 Overcast FEW021 OVC027 18 16 88% 76.3 0.0
01 09:35 S 13 9.66 Fog/Mist FEW019 OVC027 18 16 88% 76.3 0.0
01 09:15 SE 13 11.27 Overcast FEW019 FEW024 OVC030 18 16 88% 76.3 0.0
01 08:55 SE 11 9.66 Fog/Mist FEW022 OVC032 18 16 88% 76.28 0.0
01 08:35 SE 13 9.66 Fog/Mist BKN020 OVC033 17 16 94% 76.25 0.0
01 08:15 SE 11 11.27 Overcast BKN020 OVC035 17 16 94% 76.25 0.0
01 07:55 SE 9 11.27 Overcast BKN020 BKN026 OVC038 17 16 94% 76.25 0.0
01 07:35 SE 9 4.83 Fog/Mist BKN020 BKN026 OVC034 16 16 100% 76.23 0.0
01 07:15 SE 9 11.27 Mostly Cloudy FEW019 SCT024 BKN028 16 16 100% 76.23 0.0
01 06:55 S 13 4.02 Light Rain Fog/Mist BKN020 BKN029 OVC041 17 16 94% 76.23 0.0
01 06:35 S 7 12.87 Overcast SCT022 OVC046 17 16 94% 76.23 0.0
01 06:15 S 6 14.48 Overcast BKN047 OVC055 17 15 88% 76.2 0.0
01 05:55 SE 11 14.48 Overcast OVC045 17 15 88% 76.2 0.0
01 05:35 SE 13 14.48 Overcast SCT036 OVC044 17 15 88% 76.17 0.0
01 05:15 SE 13 9.66 Unknown Precip Fog/Mist FEW017 BKN036 OVC048 17 15 88% 76.2 0.0
01 04:55 SE 11 14.48 Overcast SCT017 SCT035 OVC048 17 15 88% 76.2 0.0
01 04:35 SE 11 12.87 Overcast SCT019 BKN046 OVC050 17 15 88% 76.2 0.0
01 04:15 SE 11 9.66 Unknown Precip Fog/Mist BKN018 BKN028 OVC055 17 16 94% 76.2 0.0
01 03:55 SE 9 12.87 Overcast BKN018 OVC055 17 16 94% 76.23 0.0
01 03:35 S 6 11.27 Overcast OVC018 17 16 94% 76.23 0.0
01 03:15 SE 7 9.66 Fog/Mist SCT018 OVC055 17 16 94% 76.23 0.0
01 02:55 S 7 9.66 Fog/Mist SCT046 OVC055 17 17 100% 76.23 0.0
01 02:35 SE 7 9.66 Fog/Mist FEW040 BKN048 OVC055 17 17 100% 76.23 0.0
01 02:15 S 6 6.44 Light Rain Fog/Mist FEW021 SCT048 OVC055 17 17 100% 76.25 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)