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.
11 09:55 S 9 4.83 Fair CLR 0 0 0% 75.18 0.0
11 09:35 S 7 6.44 Fair with Haze CLR 14 12 88% 75.16 0.0
11 09:15 S 7 6.44 Fog/Mist CLR 14 12 88% 75.13 0.0
11 08:55 Calm 6.44 Fog/Mist CLR 13 12 94% 75.11 0.0
11 08:35 Calm 6.44 Fog/Mist CLR 11 11 100% 75.08 0.0
11 07:55 NE 6 4.83 Fog/Mist CLR 8 8 100% 75.06 0.0
11 07:35 Calm 4.83 A Few Clouds FEW015 0 0 0% 75.03 0.0
11 07:15 NE 7 6.44 Fog/Mist SCT015 8 8 100% 7 75.03 0.0
11 06:55 Calm 6.44 Fog/Mist SCT014 9 9 100% 75.01 0.0
11 06:35 NE 6 6.44 Fog/Mist SCT014 SCT045 8 8 100% 75.01 0.0
11 06:15 NE 9 6.44 Fog/Mist FEW015 FEW035 SCT045 9 9 100% 8 74.98 0.0
11 05:35 E 7 8.05 Fog/Mist BKN016 9 9 100% 8 74.98 0.0
11 05:15 Calm 8.05 Fog/Mist OVC017 10 10 100% 74.96 0.0
11 04:55 Calm 8.05 Fog/Mist OVC018 10 10 100% 74.96 0.0
11 04:35 Calm 8.05 Fog/Mist OVC017 9 9 100% 74.96 0.0
11 04:15 E 6 8.05 Fog/Mist BKN016 9 9 100% 74.98 0.0
11 03:55 NW 7 6.44 Fog/Mist BKN016 BKN033 12 11 94% 74.98 0.0
11 03:35 N 7 6.44 Fog/Mist SCT017 SCT033 12 11 94% 75.01 0.0
11 03:15 NW 11 G 22 8.05 Fog/Mist SCT017 13 12 94% 75.03 0.0
11 02:55 N 7 8.05 Fog/Mist SCT016 12 11 94% 75.03 0.0
11 02:35 N 7 8.05 Fog/Mist BKN016 13 12 94% 75.06 0.0
11 02:15 N 9 G 20 6.44 Fog/Mist BKN016 BKN024 13 12 94% 75.06 0.0
11 01:55 N 13 6.44 Fog/Mist FEW016 13 12 94% 75.06 0.0
11 01:35 Calm 6.44 Fog/Mist FEW016 FEW023 12 11 94% 75.06 0.0
11 01:15 Calm 6.44 Fog/Mist FEW017 FEW023 0 0 0% 75.06 0.0
11 00:55 NW 7 6.44 Fog/Mist SCT016 13 12 94% 75.06 0.0
11 00:35 NW 17 6.44 Fog/Mist SCT017 13 12 94% 75.06 0.0
11 00:15 NW 15 6.44 Fog/Mist BKN017 13 12 94% 75.08 0.0
10 23:55 NW 11 G 22 6.44 Fog/Mist SCT018 13 12 94% 75.11 0.0
10 23:35 NW 20 6.44 Fog/Mist SCT018 SCT028 14 12 88% 75.11 0.0
10 23:15 NW 24 6.44 Fog/Mist SCT018 14 12 88% 75.11 0.0
10 22:55 NW 20 6.44 Fog/Mist BKN020 14 12 88% 75.13 0.0
10 22:35 NW 15 6.44 Fog/Mist BKN021 BKN027 14 12 88% 75.16 0.0
10 22:15 NW 13 6.44 Fog/Mist BKN023 14 12 88% 75.16 0.0
10 21:55 NW 13 6.44 Fog/Mist OVC022 14 12 88% 75.18 0.0
10 21:35 NW 13 4.83 Fog/Mist BKN022 14 12 88% 75.18 0.0
10 21:15 NW 9 4.83 Fog/Mist BKN021 BKN027 13 12 94% 75.21 0.0
10 20:55 NW 11 G 20 6.44 Fog/Mist FEW020 SCT027 13 12 94% 75.21 0.0
10 20:35 NW 13 6.44 Fog/Mist FEW020 14 12 88% 75.23 0.0
10 20:15 NW 11 6.44 Fog/Mist FEW019 14 12 88% 75.23 0.0
10 19:55 NW 11 6.44 A Few Clouds with Haze FEW021 14 11 82% 75.23 0.0
10 19:35 NW 13 G 24 6.44 A Few Clouds with Haze FEW021 14 11 82% 75.23 0.0
10 19:15 NW 17 6.44 A Few Clouds with Haze FEW018 14 11 82% 75.23 0.0
10 18:55 NW 20 4.83 A Few Clouds with Haze FEW019 14 11 82% 75.23 0.0
10 18:35 NW 13 G 22 4.83 Haze NULL 14 11 82% 75.26 0.0
10 18:15 Calm 4.83 Fair with Haze CLR 0 0 0% 0 0.0
10 17:55 NW 17 4.83 Fair with Haze CLR 15 11 77% 75.29 0.0
10 17:35 NW 19 4.83 Haze NULL 15 11 77% 75.29 0.0
10 17:25 NW 19 0.00 NULL NULL 0 0 0% 75.29 0.0
10 16:55 NW 22 G 31 6.44 Fair with Haze CLR 16 10 68% 75.29 0.0
10 16:35 NW 26 6.44 Fair with Haze CLR 16 10 68% 75.29 0.0
10 16:15 NW 22 6.44 Haze NULL 16 10 68% 75.31 0.0
10 15:55 NW 19 0.00 NULL NULL 0 0 0% 75.34 0.0
10 11:55 NW 17 4.83 A Few Clouds FEW018 0 0 0% 75.49 0.0
10 11:35 NW 17 6.44 Mostly Cloudy with Haze BKN018 16 12 77% 75.49 0.0
10 11:15 NW 17 4.83 Mostly Cloudy with Haze BKN018 16 12 77% 75.49 0.0
10 10:55 NW 15 6.44 A Few Clouds with Haze FEW018 16 12 77% 75.49 0.0
10 10:35 NW 17 4.83 Mostly Cloudy with Haze BKN018 16 12 77% 75.51 0.0
10 10:15 NW 11 G 24 4.83 Mostly Cloudy with Haze BKN019 15 12 82% 75.51 0.0
10 09:55 NW 20 4.83 Mostly Cloudy with Haze BKN019 15 12 82% 75.51 0.0
10 09:35 NW 15 4.83 Mostly Cloudy with Haze BKN019 15 12 82% 75.51 0.0
10 09:15 NW 17 4.83 Mostly Cloudy with Haze BKN018 15 12 82% 75.49 0.0
10 08:55 NW 11 4.83 Overcast with Haze OVC018 14 12 88% 75.49 0.0
10 08:35 NW 15 4.83 Fog/Mist OVC018 14 12 88% 75.46 0.0
10 08:15 NW 19 4.83 Fog/Mist BKN017 14 13 94% 75.46 0.0
10 07:55 NW 17 4.83 Overcast OVC016 0 0 0% 75.46 0.0
10 07:35 NW 13 4.02 Fog/Mist OVC017 14 13 94% 75.46 0.0
10 07:15 NW 15 6.44 Fog/Mist OVC017 14 13 94% 75.46 0.0
10 06:55 NW 15 6.44 Fog/Mist OVC016 14 13 94% 75.44 0.0
10 06:35 NW 17 6.44 Fog/Mist OVC016 14 13 94% 75.46 0.0
10 06:15 NW 15 6.44 Fog/Mist OVC015 14 14 100% 75.46 0.0
10 05:55 NW 13 4.83 Fog/Mist OVC015 14 14 100% 75.46 0.0
10 05:35 NW 15 6.44 Fog/Mist OVC015 14 13 94% 75.44 0.0
10 05:15 NW 9 6.44 Fog/Mist OVC016 15 14 94% 75.46 0.0
10 04:55 NW 13 4.83 Fog/Mist OVC015 15 14 94% 75.46 0.0
10 04:35 W 7 6.44 Fog/Mist OVC015 15 14 94% 75.46 0.0
10 04:15 Calm 6.44 Fog/Mist OVC015 15 15 100% 75.46 0.0
10 03:55 S 7 6.44 Fog/Mist OVC016 15 14 94% 75.49 0.0
10 03:35 S 7 6.44 Fog/Mist OVC016 15 14 94% 75.49 0.0
10 03:15 Vrbl 9 8.05 Fog/Mist OVC016 15 14 94% 75.51 0.0
10 02:55 S 13 6.44 Fog/Mist OVC017 15 15 100% 75.51 0.0
10 02:35 S 15 6.44 Fog/Mist OVC014 15 15 100% 75.51 0.0
10 02:15 S 11 8.05 Fog/Mist BKN015 OVC019 15 15 100% 75.51 0.0
10 01:55 S 15 8.05 Fog/Mist FEW013 BKN019 15 15 100% 75.54 0.0
10 01:35 S 17 8.05 Fog/Mist OVC016 15 15 100% 75.54 0.0
10 01:15 S 17 8.05 Fog/Mist OVC015 15 15 100% 75.54 0.0
10 00:55 S 13 8.05 Fog/Mist OVC015 15 15 100% 75.57 0.0
10 00:35 S 11 6.44 Fog/Mist FEW009 OVC014 15 15 100% 75.57 0.0
10 00:15 S 15 3.22 Fog/Mist OVC012 15 15 100% 75.57 0.0
09 23:55 S 11 6.44 Fog/Mist OVC014 15 15 100% 75.59 0.0
09 23:35 S 11 6.44 Fog/Mist OVC014 15 15 100% 75.57 0.0
09 23:15 S 15 8.05 Overcast OVC014 0 0 0% 75.57 0.0
09 22:55 S 13 8.05 Fog/Mist FEW008 OVC013 15 15 100% 75.59 0.0
09 22:35 S 13 4.83 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 22:15 S 13 4.83 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 21:55 S 11 4.83 Fog/Mist OVC009 15 15 100% 75.59 0.0
09 21:35 Vrbl 9 6.44 Fog/Mist OVC008 15 15 100% 75.57 0.0
09 21:15 S 13 6.44 Fog/Mist OVC009 15 15 100% 75.57 0.0
09 20:55 S 13 9.66 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 20:35 S 13 9.66 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 20:15 S 13 8.05 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 19:55 S 13 8.05 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 19:35 S 9 G 20 9.66 Overcast OVC010 0 0 0% 75.59 0.0
09 19:15 S 11 9.66 Fog/Mist OVC010 15 15 100% 75.57 0.0
09 18:55 S 11 9.66 Fog/Mist OVC010 15 15 100% 75.57 0.0
09 18:35 SW 11 6.44 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 18:15 S 11 6.44 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 17:55 S 11 8.05 Fog/Mist OVC010 15 15 100% 75.59 0.0
09 17:35 S 11 8.05 Fog/Mist OVC010 16 15 94% 75.62 0.0
09 17:15 S 13 9.66 Fog/Mist OVC010 16 15 94% 75.59 0.0
09 16:55 S 11 9.66 Fog/Mist OVC011 16 15 94% 75.62 0.0
09 16:35 S 11 9.66 Fog/Mist OVC012 16 15 94% 75.64 0.0
09 16:15 SW 9 11.27 Overcast OVC012 16 15 94% 75.64 0.0
09 15:55 S 13 11.27 Overcast OVC012 16 15 94% 75.67 0.0
09 15:35 S 13 11.27 Overcast OVC013 16 15 94% 75.67 0.0
09 15:15 S 11 11.27 Overcast OVC013 16 15 94% 75.67 0.0
09 14:55 S 13 11.27 Overcast OVC013 17 15 88% 75.67 0.0
09 14:35 S 13 11.27 Overcast OVC013 17 15 88% 75.67 0.0
09 14:15 Vrbl 7 11.27 Overcast OVC013 16 15 94% 75.69 0.0
09 13:55 S 9 9.66 Overcast with Haze OVC013 17 14 83% 75.69 0.0
09 13:35 Vrbl 11 9.66 Fog/Mist OVC013 17 15 88% 75.72 0.0
09 13:15 S 11 8.05 Fog/Mist OVC013 17 14 83% 75.72 0.0
09 12:55 S 13 11.27 Overcast OVC013 16 15 94% 75.74 0.0
09 12:35 S 11 9.66 Fog/Mist OVC013 16 15 94% 75.74 0.0
09 12:15 S 11 9.66 Fog/Mist OVC013 16 15 94% 75.74 0.0
09 11:55 SE 11 9.66 Fog/Mist OVC013 16 14 88% 75.77 0.0
09 11:35 S 11 11.27 Overcast OVC013 16 15 94% 75.77 0.0
09 11:15 S 9 8.05 Overcast OVC012 0 0 0% 75.77 0.0
09 10:55 S 13 8.05 Fog/Mist BKN010 BKN013 15 15 100% 75.79 0.0
09 10:35 S 11 6.44 Fog/Mist OVC012 15 15 100% 75.79 0.0
09 10:15 SE 11 6.44 Fog/Mist SCT006 OVC012 15 15 100% 75.79 0.0
09 09:55 SE 9 4.83 Mostly Cloudy BKN006 BKN013 0 0 0% 75.79 0.0
09 09:35 S 13 8.05 Fog/Mist OVC008 14 14 100% 75.79 0.0
09 09:15 SE 7 8.05 Fog/Mist NULL 15 15 100% 75.79 0.0
09 09:00 SE 7 0.00 NULL NULL 0 0 0% 75.79 0.0
09 08:15 SE 7 6.44 Fog/Mist OVC006 14 14 100% 75.74 0.0
09 07:35 Calm 9.66 Fog/Mist OVC005 13 13 100% 75.72 0.0
09 07:15 E 9 11.27 Overcast OVC005 13 13 100% 75.72 0.0
09 06:55 E 7 11.27 Overcast OVC005 13 13 100% 75.72 0.0
09 06:35 Calm 9.66 Fog/Mist OVC005 13 13 100% 75.72 0.0
09 06:15 NE 7 9.66 Fog/Mist OVC004 13 13 100% 75.69 0.0
09 05:55 E 7 9.66 Fog/Mist OVC004 13 13 100% 75.69 0.0
09 05:35 Calm 8.05 Fog/Mist OVC004 13 13 100% 75.69 0.0
09 05:15 E 9 4.83 Fog/Mist OVC003 13 13 100% 75.69 0.0
09 04:55 E 7 4.83 Fog/Mist OVC003 13 13 100% 75.69 0.0
09 04:35 Calm 4.02 Fog/Mist OVC003 13 13 100% 75.69 0.0
09 04:15 E 7 4.83 Fog/Mist OVC003 13 13 100% 75.69 0.0
09 03:55 Calm 6.44 Fog/Mist OVC003 13 13 100% 75.69 0.0
09 03:35 Calm 2.01 Fog/Mist OVC002 13 13 100% 75.69 0.0
09 03:15 Calm 3.22 Fog/Mist OVC002 13 13 100% 75.69 0.0
09 02:55 NW 7 1.21 Fog/Mist OVC002 13 13 100% 75.72 0.0
09 02:35 Calm 2.01 Fog/Mist OVC002 13 13 100% 75.74 0.0
09 02:15 Calm 2.01 Fog/Mist OVC002 13 13 100% 75.74 0.0
09 01:35 Calm 1.61 Fog/Mist OVC002 13 13 100% 75.77 0.0
09 01:15 Calm 2.41 Fog/Mist OVC002 14 14 100% 75.77 0.0
09 00:35 N 6 1.61 Fog/Mist OVC002 14 14 100% 75.77 0.0
09 00:15 NW 7 4.02 Fog/Mist OVC003 14 14 100% 75.79 0.0
08 23:55 Calm 4.83 Fog/Mist OVC003 14 14 100% 75.79 0.0
08 23:35 NW 7 3.22 Fog/Mist OVC002 14 14 100% 75.79 0.0
08 23:15 NW 7 2.82 Overcast OVC003 0 0 0% 75.79 0.0
08 22:55 Calm 6.44 Fog/Mist OVC003 14 14 100% 75.77 0.0
08 22:35 Calm 2.82 Overcast OVC003 0 0 0% 75.77 0.0
08 22:15 N 9 4.83 Fog/Mist OVC003 14 14 100% 75.79 0.0
08 21:55 Vrbl 7 4.02 Fog/Mist OVC003 14 14 100% 75.77 0.0
08 21:35 NW 9 4.83 Fog/Mist OVC003 14 14 100% 75.77 0.0
08 21:15 N 7 6.44 Fog/Mist OVC003 14 14 100% 75.77 0.0
08 20:55 NW 9 6.44 Fog/Mist OVC003 14 14 100% 75.77 0.0
08 20:35 N 7 6.44 Fog/Mist OVC003 14 14 100% 75.77 0.0
08 20:15 N 13 6.44 Overcast OVC003 0 0 0% 75.74 0.0
08 19:35 N 13 4.83 Fog/Mist OVC003 14 14 100% 75.74 0.0
08 19:15 N 9 8.05 Fog/Mist OVC003 14 14 100% 75.74 0.0
08 18:55 N 9 6.44 Fog/Mist OVC003 14 14 100% 75.72 0.0
08 18:35 N 13 G 22 6.44 Fog/Mist OVC003 14 14 100% 75.72 0.0
08 18:15 N 17 G 28 4.83 Fog/Mist OVC004 14 14 100% 75.74 0.0
08 17:55 N 22 6.44 Fog/Mist OVC004 15 15 100% 75.74 0.0
08 17:35 NW 19 6.44 Fog/Mist OVC004 15 15 100% 75.74 0.0
08 17:15 N 19 6.44 Fog/Mist OVC004 15 15 100% 75.74 0.0
08 16:55 N 19 G 30 8.05 Fog/Mist OVC005 15 15 100% 75.74 0.0
08 16:35 N 22 9.66 Fog/Mist OVC005 16 16 100% 75.74 0.0
08 16:15 NW 24 9.66 Fog/Mist BKN005 16 15 94% 75.77 0.0
08 15:55 NW 20 11.27 Mostly Cloudy BKN006 16 16 100% 75.77 0.0
08 15:35 NW 20 G 31 12.87 Partly Cloudy SCT006 17 16 94% 75.79 0.0
08 15:15 NW 20 12.87 Fair CLR 18 16 88% 75.79 0.0
08 14:55 NW 22 12.87 Fair CLR 17 15 88% 75.79 0.0
08 14:35 NW 20 11.27 Fair CLR 17 15 88% 75.82 0.0
08 14:15 NW 20 9.66 Fog/Mist CLR 17 15 88% 75.82 0.0
08 13:55 NW 20 11.27 Fair CLR 17 15 88% 75.84 0.0
08 13:35 NW 22 11.27 A Few Clouds FEW004 17 15 88% 75.87 0.0
08 13:15 NW 20 11.27 Mostly Cloudy BKN004 16 15 94% 75.9 0.0
08 12:55 NW 17 11.27 Mostly Cloudy BKN004 16 15 94% 75.92 0.0
08 12:35 NW 22 11.27 A Few Clouds FEW004 17 15 88% 75.92 0.0
08 12:15 NW 19 11.27 Fair CLR 17 15 88% 75.92 0.0
08 11:55 NW 19 12.87 Fair CLR 17 15 88% 75.95 0.0
08 11:35 NW 17 12.87 Fair CLR 17 15 88% 75.95 0.0
08 11:15 NW 17 9.66 Fog/Mist CLR 16 15 94% 75.97 0.0
08 10:55 N 15 12.87 Fair CLR 16 15 94% 75.95 0.0
08 10:35 NW 15 8.05 Fog/Mist FEW003 16 15 94% 75.97 0.0
08 10:15 N 15 8.05 Fog/Mist FEW003 15 15 100% 75.95 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)