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 12:15 W 7 4.83 Fog/Mist BKN015 BKN020 15 15 100% 76.28 0.0
16 11:55 SW 7 2.41 Fog/Mist SCT009 BKN013 OVC018 15 15 100% 76.28 0.0
16 11:35 Vrbl 6 2.41 Fog/Mist SCT009 OVC016 15 15 100% 76.3 0.0
16 11:15 SW 7 3.22 Fog/Mist BKN016 15 15 100% 76.28 0.0
16 10:55 W 9 4.83 Fog/Mist OVC016 15 15 100% 76.28 0.0
16 10:35 W 9 6.44 Fog/Mist OVC015 15 15 100% 76.28 0.0
16 10:15 W 11 6.44 Fog/Mist OVC014 16 14 88% 76.25 0.0
16 09:55 Calm 6.44 Fog/Mist OVC014 15 14 94% 76.25 0.0
16 09:15 Vrbl 6 6.44 Fog/Mist OVC013 15 14 94% 76.2 0.0
16 08:55 SW 6 6.44 Fog/Mist OVC013 15 14 94% 76.2 0.0
16 08:35 W 11 4.83 Fog/Mist BKN012 OVC020 15 14 94% 76.17 0.0
16 08:15 SW 15 6.44 Fog/Mist OVC018 15 14 94% 76.17 0.0
16 07:55 W 17 4.83 Fog/Mist OVC017 15 14 94% 76.15 0.0
16 07:35 W 19 4.83 Fog/Mist FEW011 OVC018 15 14 94% 76.15 0.0
16 07:15 SW 9 4.83 Fog/Mist SCT012 OVC019 15 15 100% 76.12 0.0
16 06:55 S 9 6.44 Fog/Mist SCT013 OVC019 15 15 100% 76.1 0.0
16 06:35 S 13 8.05 Fog/Mist OVC017 15 15 100% 76.07 0.0
16 06:15 S 11 8.05 Fog/Mist OVC017 15 15 100% 76.07 0.0
16 05:55 S 9 8.05 Fog/Mist OVC017 15 15 100% 76.05 0.0
16 05:35 S 11 8.05 Fog/Mist BKN015 OVC019 15 15 100% 76.02 0.0
16 05:15 S 13 9.66 Fog/Mist OVC014 15 15 100% 76.02 0.0
16 04:55 S 11 8.05 Fog/Mist OVC016 15 15 100% 76.02 0.0
16 04:35 S 11 8.05 Fog/Mist OVC017 15 15 100% 76 0.0
16 04:15 S 11 9.66 Fog/Mist OVC017 15 15 100% 76 0.0
16 03:55 S 11 8.05 Fog/Mist OVC017 15 15 100% 76 0.0
16 03:35 S 11 8.05 Fog/Mist OVC016 15 15 100% 76 0.0
16 03:15 S 11 8.05 Fog/Mist OVC017 15 15 100% 76 0.0
16 02:55 S 9 8.05 Fog/Mist OVC017 15 15 100% 76.02 0.0
16 02:35 S 11 8.05 Fog/Mist OVC016 15 15 100% 76.02 0.0
16 02:15 S 13 8.05 Fog/Mist OVC017 15 15 100% 76.05 0.0
16 01:55 S 6 8.05 Fog/Mist OVC015 15 15 100% 76.05 0.0
16 01:35 S 9 8.05 Fog/Mist OVC015 15 15 100% 76.05 0.0
16 01:15 S 11 9.66 Fog/Mist OVC016 15 15 100% 76.05 0.0
16 00:55 S 11 9.66 Fog/Mist OVC015 15 15 100% 76.05 0.0
16 00:35 S 7 8.05 Fog/Mist OVC015 15 14 94% 76.05 0.0
16 00:15 S 7 8.05 Fog/Mist OVC015 15 14 94% 76.05 0.0
15 23:55 S 7 9.66 Fog/Mist OVC015 15 14 94% 76.05 0.0
15 23:35 S 9 8.05 Fog/Mist OVC014 15 14 94% 76.05 0.0
15 23:15 S 9 9.66 Fog/Mist OVC014 15 14 94% 76.05 0.0
15 22:55 S 9 9.66 Fog/Mist OVC015 15 14 94% 76.05 0.0
15 22:35 S 9 8.05 Fog/Mist OVC015 15 14 94% 76.05 0.0
15 22:15 S 9 8.05 Fog/Mist OVC014 15 15 100% 76.05 0.0
15 21:55 S 6 8.05 Fog/Mist OVC011 15 15 100% 76.07 0.0
15 21:35 S 7 8.05 Fog/Mist OVC011 15 15 100% 76.05 0.0
15 21:15 S 7 9.66 Fog/Mist OVC011 15 14 94% 76.05 0.0
15 20:55 S 9 9.66 Fog/Mist OVC011 15 14 94% 76.05 0.0
15 20:35 Calm 9.66 Fog/Mist OVC011 15 14 94% 76.02 0.0
15 20:15 W 7 8.05 Fog/Mist OVC010 15 14 94% 76 0.0
15 19:55 W 9 8.05 Fog/Mist OVC009 15 15 100% 76 0.0
15 19:35 SW 7 8.05 Fog/Mist OVC010 15 15 100% 76 0.0
15 19:15 SW 7 6.44 Fog/Mist OVC010 15 15 100% 76 0.0
15 18:55 SW 7 6.44 Fog/Mist OVC010 15 15 100% 76 0.0
15 18:35 Calm 6.44 Fog/Mist OVC010 15 15 100% 76 0.0
15 18:15 Calm 6.44 Fog/Mist OVC010 15 15 100% 76 0.0
15 17:55 W 9 6.44 Fog/Mist OVC012 16 15 94% 76 0.0
15 17:35 SW 9 6.44 Fog/Mist OVC012 16 15 94% 76 0.0
15 17:15 Calm 6.44 Fog/Mist OVC013 16 15 94% 76 0.0
15 16:55 Vrbl 6 8.05 Fog/Mist OVC013 16 15 94% 76 0.0
15 16:35 Calm 8.05 Fog/Mist OVC013 16 15 94% 76.02 0.0
15 16:15 Vrbl 7 6.44 Overcast OVC013 0 0 0% 76.02 0.0
15 15:55 SW 11 4.83 Fog/Mist OVC013 16 15 94% 76.02 0.0
15 15:35 Vrbl 7 6.44 Fog/Mist OVC013 16 15 94% 76.02 0.0
15 15:15 S 7 6.44 Fog/Mist OVC013 17 15 88% 76.02 0.0
15 14:55 Calm 8.05 Overcast with Haze OVC013 17 15 88% 76.05 0.0
15 14:35 Vrbl 6 6.44 Fog/Mist OVC013 17 15 88% 76.05 0.0
15 14:15 Calm 6.44 Fog/Mist OVC013 17 15 88% 76.07 0.0
15 13:55 Vrbl 6 4.83 Fog/Mist BKN013 16 15 94% 76.05 0.0
15 13:35 SW 7 8.05 Overcast with Haze OVC013 17 15 88% 76.05 0.0
15 13:15 Vrbl 6 4.83 Fog/Mist OVC013 17 15 88% 76.07 0.0
15 12:55 Vrbl 7 6.44 Fog/Mist OVC013 16 14 88% 76.07 0.0
15 12:35 Calm 6.44 Fog/Mist OVC013 16 14 88% 76.07 0.0
15 12:15 SW 7 6.44 Overcast OVC013 0 0 0% 76.07 0.0
15 11:55 Vrbl 7 6.44 Fog/Mist OVC013 16 14 88% 76.1 0.0
15 11:35 Calm 6.44 Fog/Mist OVC013 16 14 88% 76.1 0.0
15 11:15 Vrbl 6 6.44 Fog/Mist OVC013 16 14 88% 76.1 0.0
15 10:55 Calm 6.44 Fog/Mist OVC013 16 14 88% 76.07 0.0
15 10:35 W 11 6.44 Fog/Mist OVC013 16 14 88% 76.07 0.0
15 10:15 Calm 4.83 Fog/Mist OVC013 15 14 94% 76.07 0.0
15 09:55 SW 7 4.83 Fog/Mist OVC013 15 14 94% 76.05 0.0
15 09:35 SW 6 4.83 Fog/Mist OVC013 15 14 94% 76.02 0.0
15 09:15 SE 6 6.44 Fog/Mist OVC013 15 14 94% 76.02 0.0
15 08:55 SW 7 6.44 Fog/Mist OVC013 15 14 94% 76.02 0.0
15 08:35 Calm 4.83 Overcast OVC013 0 0 0% 76 0.0
15 08:15 S 7 4.83 Fog/Mist OVC012 15 14 94% 76 0.0
15 07:55 Calm 4.83 Fog/Mist OVC012 15 14 94% 76 0.0
15 07:35 Calm 4.83 Fog/Mist OVC012 15 14 94% 75.97 0.0
15 07:15 Calm 4.83 Fog/Mist OVC012 15 14 94% 75.97 0.0
15 06:55 Calm 6.44 Fog/Mist OVC012 14 14 100% 75.95 0.0
15 06:35 Calm 6.44 Fog/Mist OVC012 15 14 94% 75.92 0.0
15 06:15 Calm 6.44 Fog/Mist OVC012 14 14 100% 75.92 0.0
15 05:55 Calm 6.44 Fog/Mist OVC011 14 14 100% 75.92 0.0
15 05:35 Calm 6.44 Fog/Mist OVC011 14 14 100% 75.9 0.0
15 05:15 Calm 6.44 Fog/Mist OVC011 15 14 94% 75.9 0.0
15 04:55 Calm 6.44 Fog/Mist OVC012 15 14 94% 75.9 0.0
15 04:35 Calm 6.44 Fog/Mist OVC012 15 14 94% 75.92 0.0
15 04:15 Calm 6.44 Fog/Mist OVC012 15 14 94% 75.92 0.0
15 03:55 Calm 6.44 Fog/Mist OVC012 15 14 94% 75.92 0.0
15 03:35 Calm 4.83 Fog/Mist OVC011 15 14 94% 75.92 0.0
15 03:15 Calm 6.44 Fog/Mist OVC011 15 14 94% 75.92 0.0
15 02:55 Calm 6.44 Fog/Mist OVC011 15 14 94% 75.92 0.0
15 02:35 Calm 6.44 Fog/Mist OVC011 15 14 94% 75.92 0.0
15 02:15 Calm 8.05 Fog/Mist OVC011 14 14 100% 75.92 0.0
15 01:55 Calm 8.05 Fog/Mist OVC012 15 14 94% 75.92 0.0
15 01:35 Calm 8.05 Fog/Mist OVC012 14 14 100% 75.92 0.0
15 01:15 Calm 8.05 Fog/Mist OVC012 14 14 100% 75.92 0.0
15 00:35 Calm 8.05 Fog/Mist OVC013 13 13 100% 75.92 0.0
15 00:15 Calm 8.05 Fog/Mist OVC013 12 12 100% 75.92 0.0
14 23:55 Calm 8.05 Fog/Mist OVC014 12 12 100% 75.92 0.0
14 23:35 Calm 8.05 Fog/Mist OVC013 12 12 100% 75.92 0.0
14 23:15 Calm 8.05 Fog/Mist OVC013 12 12 100% 75.95 0.0
14 22:55 Calm 6.44 Fog/Mist OVC013 11 11 100% 75.95 0.0
14 22:35 Calm 8.05 Fog/Mist BKN014 12 12 100% 75.95 0.0
14 22:15 Calm 8.05 Fog/Mist OVC014 12 12 100% 75.95 0.0
14 21:55 Calm 8.05 Fog/Mist OVC014 12 12 100% 75.95 0.0
14 21:35 Calm 8.05 Fog/Mist OVC013 12 12 100% 75.95 0.0
14 20:55 Calm 6.44 Fog/Mist BKN013 13 13 100% 75.95 0.0
14 20:35 Calm 6.44 Fog/Mist BKN013 14 14 100% 75.92 0.0
14 20:15 Calm 6.44 Fog/Mist BKN013 15 15 100% 75.92 0.0
14 19:55 N 9 6.44 Fog/Mist BKN013 15 15 100% 75.9 0.0
14 19:35 N 11 4.83 Fog/Mist FEW013 15 15 100% 75.9 0.0
14 19:15 N 9 4.83 Fog/Mist CLR 15 15 100% 75.92 0.0
14 18:55 NW 15 6.44 Fog/Mist CLR 16 15 94% 75.9 0.0
14 18:35 NW 17 6.44 Fair CLR 0 0 0% 75.9 0.0
14 18:15 NW 20 6.44 Fog/Mist CLR 17 15 88% 75.9 0.0
14 17:55 NW 20 8.05 Fair CLR 0 0 0% 75.9 0.0
14 17:35 NW 15 8.05 Fog/Mist CLR 17 16 94% 75.9 0.0
14 17:15 NW 22 8.05 Fog/Mist CLR 17 15 88% 75.9 0.0
14 16:55 N 19 G 28 8.05 Fog/Mist CLR 18 15 83% 75.9 0.0
14 16:35 NW 22 6.44 Fog/Mist CLR 18 16 88% 75.92 0.0
14 16:15 NW 20 8.05 Fog/Mist CLR 18 16 88% 75.92 0.0
14 15:55 NW 19 8.05 Fair with Haze CLR 18 16 88% 75.92 0.0
14 15:35 NW 20 6.44 Fair with Haze CLR 18 16 88% 75.95 0.0
14 15:15 NW 20 8.05 Fair with Haze CLR 18 16 88% 75.97 0.0
14 14:55 NW 24 8.05 Fair with Haze CLR 18 16 88% 75.97 0.0
14 14:35 NW 24 8.05 Fair with Haze CLR 19 16 83% 76 0.0
14 14:15 NW 22 8.05 Fair with Haze CLR 19 15 78% 76 0.0
14 13:55 NW 24 8.05 Fair with Haze CLR 18 15 83% 76.02 0.0
14 13:35 NW 24 8.05 Fair with Haze CLR 19 15 78% 76.02 0.0
14 13:15 NW 22 8.05 Fair with Haze CLR 18 15 83% 76.05 0.0
14 12:55 NW 24 9.66 Fair with Haze CLR 18 15 83% 76.07 0.0
14 12:35 NW 17 9.66 Fair with Haze CLR 19 15 78% 76.07 0.0
14 12:15 NW 15 9.66 Fair with Haze CLR 19 15 78% 76.07 0.0
14 11:55 NW 15 8.05 Fair with Haze CLR 18 15 83% 76.1 0.0
14 11:35 NW 13 8.05 Fog/Mist CLR 18 15 83% 76.1 0.0
14 11:15 W 13 8.05 Fair with Haze CLR 18 15 83% 76.1 0.0
14 10:35 NW 11 8.05 Fair CLR 0 0 0% 76.1 0.0
14 10:15 NW 15 8.05 Fog/Mist CLR 17 15 88% 76.12 0.0
14 09:55 W 13 6.44 Fog/Mist CLR 17 15 88% 76.1 0.0
14 09:35 Vrbl 9 6.44 Fair CLR 0 0 0% 76.1 0.0
14 09:15 NW 6 8.05 Fog/Mist NULL 0 0 0% 76.1 0.0
14 08:55 Calm 6.44 Fog/Mist CLR 15 15 100% 76.1 0.0
14 08:35 Calm 8.05 Fog/Mist CLR 14 14 100% 76.1 0.0
14 08:15 Calm 8.05 Fog/Mist CLR 12 12 100% 76.1 0.0
14 07:35 Calm 8.05 Fog/Mist CLR 10 10 100% 76.07 0.0
14 07:15 Calm 8.05 Fog/Mist CLR 10 10 100% 76.07 0.0
14 06:55 Calm 8.05 Fog/Mist CLR 10 10 100% 76.05 0.0
14 06:35 Calm 6.44 Fog/Mist CLR 11 11 100% 76.05 0.0
14 05:55 Calm 4.83 A Few Clouds FEW005 0 0 0% 76.07 0.0
14 05:35 Calm 9.66 Fog/Mist BKN005 11 11 100% 76.07 0.0
14 05:15 Calm 11.27 Overcast OVC007 11 11 100% 76.05 0.0
14 04:55 Calm 11.27 Overcast OVC008 11 11 100% 76.07 0.0
14 04:35 Calm 11.27 Mostly Cloudy BKN008 10 10 100% 76.07 0.0
14 04:15 Calm 9.66 Partly Cloudy SCT008 0 0 0% 76.1 0.0
14 03:55 Calm 9.66 Fog/Mist OVC008 11 11 100% 76.1 0.0
14 03:35 NE 7 6.44 Fog/Mist BKN008 10 10 100% 9 76.1 0.0
14 02:55 Calm 9.66 Mostly Cloudy BKN009 0 0 0% 76.12 0.0
14 02:35 Calm 9.66 Fog/Mist SCT009 10 10 100% 76.1 0.0
14 02:15 Calm 11.27 Fair CLR 10 10 100% 76.1 0.0
14 01:55 Calm 11.27 Fair CLR 10 10 100% 76.1 0.0
14 01:35 Calm 11.27 Fair CLR 10 10 100% 76.1 0.0
14 01:15 Calm 9.66 Fog/Mist CLR 11 11 100% 76.12 0.0
14 00:55 Calm 11.27 Fair CLR 11 11 100% 76.12 0.0
14 00:35 Calm 11.27 Fair CLR 11 11 100% 76.15 0.0
14 00:15 NE 6 11.27 Fair CLR 12 12 100% 76.12 0.0
13 23:55 E 6 9.66 Fog/Mist CLR 12 12 100% 76.12 0.0
13 23:35 NE 6 8.05 Fog/Mist FEW011 14 14 100% 76.12 0.0
13 23:15 N 7 8.05 Fog/Mist CLR 14 14 100% 76.12 0.0
13 22:55 N 9 8.05 Fog/Mist FEW013 15 15 100% 76.15 0.0
13 22:35 Vrbl 9 8.05 Fog/Mist FEW013 15 15 100% 76.17 0.0
13 22:15 N 9 9.66 Fog/Mist FEW013 15 15 100% 76.15 0.0
13 21:55 N 7 8.05 Fair CLR 0 0 0% 76.17 0.0
13 21:35 N 11 8.05 Fair CLR 0 0 0% 76.17 0.0
13 21:15 N 11 G 22 8.05 Fog/Mist CLR 15 15 100% 76.15 0.0
13 20:55 N 19 G 30 8.05 A Few Clouds FEW013 0 0 0% 76.15 0.0
13 20:35 N 22 8.05 Fog/Mist FEW014 15 15 100% 76.15 0.0
13 20:15 N 24 G 33 8.05 Fog/Mist CLR 15 15 100% 76.15 0.0
13 19:55 N 22 8.05 Fog/Mist CLR 16 15 94% 76.15 0.0
13 19:35 N 26 6.44 Fair CLR 0 0 0% 76.15 0.0
13 19:15 N 22 G 37 6.44 Fog/Mist CLR 16 15 94% 76.15 0.0
13 18:55 N 26 6.44 Fog/Mist CLR 17 15 88% 76.17 0.0
13 18:35 N 26 6.44 Fog/Mist CLR 17 15 88% 76.17 0.0
13 18:15 N 26 G 35 4.83 Fog/Mist CLR 17 15 88% 76.2 0.0
13 17:55 N 24 G 37 8.05 Fair with Haze CLR 18 15 83% 76.2 0.0
13 17:15 NW 26 4.02 Fair with Haze CLR 18 15 83% 76.2 0.0
13 16:55 NW 28 G 39 4.83 Fair with Haze CLR 18 15 83% 76.23 0.0
13 16:35 NW 31 6.44 Fair with Haze CLR 19 15 78% 76.23 0.0
13 16:15 N 31 6.44 Fair with Haze CLR 19 16 83% 76.23 0.0
13 15:55 N 30 G 39 8.05 Fair with Haze CLR 19 16 83% 76.23 0.0
13 15:35 N 31 G 43 8.05 Fair with Haze CLR 19 15 78% 76.25 0.0
13 15:15 N 26 6.44 Fair with Haze CLR 20 16 78% 76.28 0.0
13 14:55 NW 26 G 35 4.83 Fair with Haze CLR 19 16 83% 76.28 0.0
13 14:35 N 28 G 37 4.83 Fair with Haze CLR 20 16 78% 76.3 0.0
13 14:15 NW 24 G 39 4.83 Fair with Haze CLR 20 16 78% 76.3 0.0
13 13:55 NW 31 4.02 Fair with Haze CLR 19 16 83% 76.3 0.0
13 13:35 N 28 G 41 6.44 Fair with Haze CLR 20 16 78% 76.3 0.0
13 13:15 NW 33 4.83 Fair with Haze and Breezy CLR 19 15 78% 76.3 0.0
13 12:55 NW 28 G 37 4.83 Fair with Haze CLR 20 14 69% 76.33 0.0
13 12:35 NW 31 4.83 Fair with Haze CLR 19 15 78% 76.33 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)