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.
30 05:55 SW 7 1.21 Fog/Mist OVC002 11 11 100% 75.97 0.0
30 05:35 SW 7 2.82 Fog/Mist OVC003 11 11 100% 75.95 0.0
30 05:15 S 7 2.01 Fog/Mist OVC003 11 11 100% 75.95 0.0
30 04:55 S 7 3.22 Fog/Mist OVC003 11 11 100% 75.95 0.0
30 04:35 S 11 9.66 Fog/Mist OVC003 11 11 100% 75.95 0.0
30 04:15 S 9 3.22 Fog/Mist OVC003 11 11 100% 75.95 0.0
30 03:55 S 11 2.41 Fog/Mist OVC002 11 11 100% 75.95 0.0
30 03:35 S 11 1.61 Fog/Mist OVC002 11 11 100% 75.97 0.0
30 03:15 S 11 2.01 Fog/Mist OVC002 11 11 100% 75.97 0.0
30 02:55 S 11 2.82 Fog/Mist OVC003 11 11 100% 76 0.0
30 02:35 S 11 2.41 Fog/Mist OVC003 12 12 100% 75.97 0.0
30 02:15 S 9 3.22 Fog/Mist OVC003 11 11 100% 75.97 0.0
30 01:55 S 7 1.61 Fog/Mist OVC002 11 11 100% 76 0.0
30 01:35 S 11 1.21 Fog/Mist OVC002 11 11 100% 76 0.0
30 01:15 S 13 1.61 Fog/Mist OVC002 11 11 100% 76 0.0
30 00:55 S 13 1.21 Fog/Mist OVC002 11 11 100% 76 0.0
30 00:35 S 13 0.80 Fog/Mist OVC002 11 11 100% 76.02 0.0
30 00:15 SW 11 0.80 Fog OVC002 12 12 100% 76.02 0.0
29 23:55 S 11 0.40 Fog OVC002 11 11 100% 76.05 0.0
29 23:35 S 13 0.80 Fog OVC002 12 12 100% 76.05 0.0
29 23:15 S 13 0.40 Fog OVC002 12 12 100% 76.05 0.0
29 22:55 S 13 0.40 Fog OVC002 12 12 100% 76.05 0.0
29 22:35 S 13 0.80 Fog OVC002 12 12 100% 76.05 0.0
29 22:15 S 11 0.40 Fog OVC002 12 12 100% 76.05 0.0
29 21:55 S 11 0.80 Fog OVC002 12 12 100% 76.02 0.0
29 21:35 S 11 0.80 Fog OVC002 12 12 100% 76.02 0.0
29 21:15 S 9 1.21 Fog/Mist OVC002 12 12 100% 76.02 0.0
29 20:55 S 13 2.01 Fog/Mist OVC002 12 12 100% 76.02 0.0
29 20:35 S 15 1.61 Fog/Mist OVC003 12 12 100% 76.02 0.0
29 20:15 S 13 2.82 Fog/Mist OVC003 12 12 100% 76.02 0.0
29 19:55 S 11 3.22 Fog/Mist OVC003 12 12 100% 76.02 0.0
29 19:35 S 13 2.01 Fog/Mist OVC003 12 12 100% 76.02 0.0
29 19:15 S 13 2.01 Fog/Mist OVC003 12 12 100% 76.02 0.0
29 18:55 SE 13 1.61 Fog/Mist OVC003 13 13 100% 76.02 0.0
29 18:35 S 9 2.01 Fog/Mist OVC003 13 13 100% 76.02 0.0
29 18:15 S 11 1.21 Fog/Mist OVC003 13 13 100% 76.02 0.0
29 17:55 S 13 2.01 Fog/Mist OVC003 13 13 100% 76.02 0.0
29 17:35 S 13 2.41 Fog/Mist OVC003 13 13 100% 76.05 0.0
29 17:15 SE 11 2.41 Fog/Mist OVC003 13 13 100% 76.07 0.0
29 16:55 SE 13 2.82 Fog/Mist OVC003 13 13 100% 76.07 0.0
29 16:35 S 15 2.41 Fog/Mist OVC003 14 13 94% 76.07 0.0
29 16:15 SE 15 2.01 Fog/Mist OVC003 14 13 94% 76.1 0.0
29 15:55 SE 15 4.02 Fog/Mist OVC004 15 13 88% 76.1 0.0
29 15:35 SE 15 1.61 Fog/Mist OVC003 14 13 94% 76.12 0.0
29 15:15 S 15 6.44 Fog/Mist BKN004 14 13 94% 76.12 0.0
29 14:55 S 17 4.83 Fog/Mist BKN004 14 12 88% 76.12 0.0
29 14:35 S 15 6.44 Fog/Mist BKN003 14 13 94% 76.15 0.0
29 14:15 S 15 6.44 Fog/Mist SCT004 14 12 88% 76.15 0.0
29 13:55 S 17 2.41 Fog/Mist BKN004 13 12 94% 76.17 0.0
29 13:35 SE 15 12.87 Partly Cloudy SCT004 14 13 94% 76.17 0.0
29 13:15 S 15 14.48 Partly Cloudy SCT004 13 12 94% 76.17 0.0
29 12:55 S 15 9.66 Fog/Mist SCT004 14 12 88% 76.2 0.0
29 12:35 S 17 4.83 Fog/Mist SCT004 14 12 88% 76.2 0.0
29 12:15 S 17 4.02 Fog/Mist FEW003 14 12 88% 76.2 0.0
29 11:55 S 17 12.87 Fair CLR 14 12 88% 76.17 0.0
29 11:35 S 17 14.48 Fair CLR 14 12 88% 76.17 0.0
29 11:15 S 13 14.48 Fair CLR 14 12 88% 76.17 0.0
29 10:55 S 15 14.48 A Few Clouds FEW005 13 12 94% 76.17 0.0
29 10:35 SE 13 14.48 Mostly Cloudy BKN006 13 12 94% 76.17 0.0
29 10:15 SE 17 14.48 Mostly Cloudy BKN005 12 12 100% 76.17 0.0
29 09:55 SE 13 11.27 Overcast OVC003 12 12 100% 76.17 0.0
29 09:35 SE 17 3.22 Fog/Mist OVC003 11 11 100% 76.2 0.0
29 09:15 S 17 2.41 Fog/Mist OVC003 11 11 100% 76.2 0.0
29 08:55 SE 13 1.21 Fog/Mist OVC003 11 11 100% 76.2 0.0
29 08:35 SE 13 1.61 Fog/Mist OVC003 11 11 100% 76.17 0.0
29 08:15 SE 13 1.21 Fog/Mist OVC003 11 11 100% 76.17 0.0
29 07:55 SE 13 1.21 Fog/Mist OVC003 11 11 100% 76.17 0.0
29 07:35 SE 13 0.80 Fog OVC003 10 10 100% 8 76.15 0.0
29 07:15 SE 13 0.80 Fog/Mist OVC003 10 10 100% 8 76.15 0.0
29 06:55 SE 11 0.80 Fog OVC002 10 10 100% 9 76.12 0.0
29 06:35 SE 15 0.40 Fog OVC002 10 10 100% 8 76.12 0.0
29 06:15 SE 13 0.24 Fog OVC002 10 10 100% 8 76.12 0.0
29 05:55 SE 9 1.21 Fog/Mist OVC002 10 10 100% 9 76.1 0.0
29 05:35 SE 11 0.80 Fog OVC002 10 10 100% 9 76.1 0.0
29 05:15 SE 9 0.80 Fog/Mist OVC002 10 10 100% 9 76.1 0.0
29 04:55 S 11 0.80 Fog OVC002 10 10 100% 9 76.07 0.0
29 04:35 S 9 0.80 Fog/Mist OVC002 10 10 100% 9 76.07 0.0
29 03:55 S 11 0.80 Fog/Mist OVC002 11 11 100% 76.07 0.0
29 03:35 SE 9 0.80 Fog OVC002 11 11 100% 76.07 0.0
29 03:15 S 13 0.40 Fog OVC002 11 11 100% 76.07 0.0
29 02:55 S 15 0.80 Fog OVC002 11 11 100% 76.07 0.0
29 02:35 S 13 1.21 Fog/Mist OVC002 11 11 100% 76.1 0.0
29 02:15 SE 13 0.80 Fog/Mist OVC002 11 11 100% 76.1 0.0
29 01:55 S 13 0.40 Fog OVC002 11 11 100% 76.12 0.0
29 01:35 S 15 0.40 Fog OVC002 11 11 100% 76.12 0.0
29 01:15 S 13 0.40 Fog OVC002 11 11 100% 76.12 0.0
29 00:55 S 15 0.40 Fog OVC002 11 11 100% 76.12 0.0
29 00:35 S 15 0.40 Fog OVC002 11 11 100% 76.12 0.0
29 00:15 S 17 0.40 Fog OVC002 11 11 100% 76.12 0.0
28 23:55 S 15 0.40 Fog OVC002 11 11 100% 76.12 0.0
28 23:35 SE 13 0.80 Fog OVC002 11 11 100% 76.12 0.0
28 23:15 SE 15 0.80 Fog OVC002 11 11 100% 76.12 0.0
28 22:55 S 15 0.80 Fog/Mist OVC002 11 11 100% 76.12 0.0
28 22:35 S 15 0.80 Fog OVC002 11 11 100% 76.1 0.0
28 22:15 S 13 0.40 Fog OVC002 11 11 100% 76.1 0.0
28 21:55 SE 13 0.80 Fog OVC002 11 11 100% 76.1 0.0
28 21:35 SE 17 0.80 Fog OVC002 11 11 100% 76.07 0.0
28 21:15 S 15 0.40 Fog OVC002 11 11 100% 76.07 0.0
28 20:55 SE 17 0.40 Fog OVC002 11 11 100% 76.07 0.0
28 20:35 SE 13 0.40 Fog OVC002 11 11 100% 76.07 0.0
28 20:15 SE 17 0.24 Fog OVC002 11 11 100% 76.07 0.0
28 19:55 SE 17 0.40 Fog OVC002 12 12 100% 76.1 0.0
28 19:35 S 19 0.40 Fog OVC002 12 12 100% 76.07 0.0
28 19:15 S 15 0.40 Fog OVC002 12 12 100% 76.07 0.0
28 18:55 S 19 0.40 Fog OVC002 12 12 100% 76.07 0.0
28 18:15 SE 20 0.80 Fog OVC002 13 13 100% 76.07 0.0
28 17:55 SE 19 0.80 Fog OVC002 13 13 100% 76.1 0.0
28 17:35 SE 19 1.61 Fog/Mist OVC003 13 13 100% 76.1 0.0
28 17:15 S 19 1.21 Fog/Mist OVC003 13 13 100% 76.12 0.0
28 16:55 SE 17 1.61 Fog/Mist OVC003 13 13 100% 76.15 0.0
28 16:35 S 15 1.61 Fog/Mist OVC003 14 13 94% 76.15 0.0
28 16:15 S 20 2.01 Fog/Mist BKN002 BKN007 14 13 94% 76.15 0.0
28 15:55 S 20 2.41 Fog/Mist BKN003 BKN007 14 13 94% 76.17 0.0
28 15:35 S 20 2.41 Fog/Mist OVC004 14 13 94% 76.17 0.0
28 15:15 S 19 2.01 Fog/Mist OVC003 14 13 94% 76.17 0.0
28 14:55 S 20 1.21 Fog/Mist OVC003 14 13 94% 76.17 0.0
28 14:35 S 20 1.61 Fog/Mist BKN003 14 13 94% 76.17 0.0
28 14:15 S 19 2.01 Fog/Mist SCT003 15 13 88% 76.2 0.0
28 13:55 S 19 2.01 Fog/Mist SCT003 14 13 94% 76.2 0.0
28 13:35 S 22 2.41 Fog/Mist SCT003 14 13 94% 76.2 0.0
28 13:15 S 20 G 30 2.82 Fog/Mist SCT003 14 13 94% 76.2 0.0
28 12:55 S 22 2.82 Fog/Mist SCT003 14 13 94% 76.23 0.0
28 12:35 S 22 1.61 Fog/Mist SCT003 14 13 94% 76.23 0.0
28 12:15 S 20 8.05 Fog/Mist SCT003 14 13 94% 76.2 0.0
28 11:55 S 22 4.83 Fog/Mist BKN003 BKN006 13 13 100% 76.2 0.0
28 11:35 S 24 14.48 Mostly Cloudy BKN004 13 12 94% 76.2 0.0
28 11:15 S 24 4.02 Fog/Mist BKN004 13 12 94% 76.2 0.0
28 10:55 S 24 14.48 Overcast OVC003 13 12 94% 76.2 0.0
28 10:35 S 24 4.83 Fog/Mist OVC003 13 13 100% 76.2 0.0
28 10:15 S 19 2.01 Fog/Mist OVC003 13 13 100% 76.17 0.0
28 09:55 S 17 2.01 Fog/Mist OVC003 12 12 100% 76.17 0.0
28 09:35 S 15 1.61 Fog/Mist OVC003 12 12 100% 76.17 0.0
28 09:15 SE 19 4.83 Fog/Mist OVC003 12 12 100% 76.17 0.0
28 08:55 S 20 6.44 Fog/Mist OVC003 12 12 100% 76.17 0.0
28 08:35 S 19 2.41 Fog/Mist OVC003 12 12 100% 76.15 0.0
28 08:15 SE 17 1.21 Fog/Mist OVC002 11 11 100% 76.15 0.0
28 07:55 S 15 0.80 Fog OVC002 11 11 100% 76.15 0.0
28 07:35 SE 19 0.40 Fog OVC002 11 11 100% 76.12 0.0
28 07:15 S 17 0.40 Fog OVC002 11 11 100% 76.12 0.0
28 06:55 S 17 0.40 Fog OVC002 11 11 100% 76.1 0.0
28 06:35 SE 17 0.80 Fog OVC002 11 11 100% 76.07 0.0
28 06:15 S 15 1.21 Fog/Mist OVC003 11 11 100% 76.07 0.0
28 05:55 SE 17 9.66 Fog/Mist OVC003 11 11 100% 76.07 0.0
28 05:35 SE 15 2.01 Fog/Mist OVC002 11 11 100% 76.07 0.0
28 05:15 SE 11 G 22 2.01 Fog/Mist OVC003 11 11 100% 76.07 0.0
28 04:55 S 19 4.83 Fog/Mist OVC003 11 11 100% 76.05 0.0
28 04:35 S 17 4.83 Fog/Mist OVC003 11 11 100% 76.05 0.0
28 04:15 SE 17 2.41 Fog/Mist OVC003 11 11 100% 76.05 0.0
28 03:55 SE 19 3.22 Fog/Mist OVC002 11 11 100% 76.05 0.0
28 03:35 S 17 1.21 Fog/Mist OVC002 11 11 100% 76.02 0.0
28 03:15 SE 15 2.41 Fog/Mist OVC002 12 12 100% 76.02 0.0
28 02:55 S 15 4.83 Fog/Mist OVC003 12 12 100% 76.02 0.0
28 02:35 S 17 3.22 Fog/Mist OVC003 12 12 100% 76.02 0.0
28 02:15 SE 17 3.22 Fog/Mist OVC003 12 12 100% 76.02 0.0
28 01:55 SE 17 4.02 Fog/Mist OVC003 12 12 100% 76.02 0.0
28 01:35 SE 13 4.83 Fog/Mist OVC003 12 12 100% 76.05 0.0
28 01:15 SE 15 3.22 Fog/Mist OVC003 12 12 100% 76.02 0.0
28 00:55 S 13 4.02 Fog/Mist OVC003 12 12 100% 76.05 0.0
28 00:35 SE 13 4.02 Fog/Mist OVC003 12 12 100% 76.05 0.0
28 00:15 SE 15 3.22 Fog/Mist OVC003 12 12 100% 76.05 0.0
27 23:55 SE 15 4.83 Fog/Mist OVC003 12 12 100% 76.07 0.0
27 23:35 SE 11 6.44 Fog/Mist OVC003 12 12 100% 76.07 0.0
27 23:15 S 13 4.83 Fog/Mist OVC004 12 12 100% 76.07 0.0
27 22:55 S 9 6.44 Fog/Mist OVC004 12 12 100% 76.07 0.0
27 22:35 S 9 8.05 Fog/Mist OVC005 12 12 100% 76.1 0.0
27 22:15 SE 7 8.05 Fog/Mist OVC005 12 12 100% 76.1 0.0
27 21:55 Calm 8.05 Fog/Mist OVC006 12 12 100% 76.07 0.0
27 21:15 SW 7 9.66 Fog/Mist OVC007 13 12 94% 76.07 0.0
27 20:55 Calm 8.05 Fog/Mist OVC007 13 12 94% 76.07 0.0
27 20:35 W 6 6.44 Fog/Mist OVC007 13 13 100% 76.07 0.0
27 20:15 Calm 6.44 Fog/Mist OVC008 13 13 100% 76.07 0.0
27 19:55 Calm 6.44 Fog/Mist OVC008 13 13 100% 76.07 0.0
27 19:35 NW 7 6.44 Fog/Mist OVC008 13 13 100% 76.07 0.0
27 19:15 NW 9 8.05 Fog/Mist OVC008 13 13 100% 76.07 0.0
27 18:55 Vrbl 7 8.05 Fog/Mist OVC006 13 13 100% 76.07 0.0
27 18:35 N 11 6.44 Fog/Mist OVC006 13 13 100% 76.07 0.0
27 18:15 NW 13 6.44 Fog/Mist OVC006 13 13 100% 76.07 0.0
27 17:55 N 15 8.05 Fog/Mist OVC007 13 13 100% 76.1 0.0
27 17:35 N 15 8.05 Fog/Mist OVC007 14 13 94% 76.1 0.0
27 17:15 N 15 8.05 Fog/Mist OVC007 14 13 94% 76.1 0.0
27 16:55 NW 15 8.05 Fog/Mist BKN007 14 13 94% 76.1 0.0
27 16:35 NW 19 8.05 Fog/Mist BKN007 14 13 94% 76.1 0.0
27 16:15 NW 20 8.05 Fog/Mist BKN007 15 13 88% 76.1 0.0
27 15:55 NW 22 8.05 Fog/Mist BKN007 15 13 88% 76.1 0.0
27 15:35 NW 17 8.05 Fog/Mist BKN007 15 13 88% 76.1 0.0
27 15:15 NW 19 9.66 Fog/Mist SCT006 15 13 88% 76.12 0.0
27 14:55 NW 20 8.05 Fog/Mist CLR 15 13 88% 76.12 0.0
27 14:35 NW 17 9.66 Fog/Mist CLR 15 13 88% 76.12 0.0
27 14:15 NW 20 9.66 Fog/Mist CLR 15 13 88% 76.12 0.0
27 13:55 NW 20 9.66 Fog/Mist CLR 15 13 88% 76.12 0.0
27 13:35 NW 20 11.27 Fair CLR 15 13 88% 76.12 0.0
27 13:15 NW 15 G 26 9.66 Fog/Mist CLR 16 13 83% 76.12 0.0
27 12:55 NW 19 8.05 Fog/Mist CLR 15 13 88% 76.12 0.0
27 12:35 NW 20 8.05 Fog/Mist FEW006 15 13 88% 76.12 0.0
27 12:15 NW 22 8.05 Fog/Mist FEW005 14 13 94% 76.12 0.0
27 11:55 NW 17 8.05 Fog/Mist BKN005 13 13 100% 76.12 0.0
27 11:35 NW 15 8.05 Fog/Mist OVC005 13 12 94% 76.12 0.0
27 11:15 NW 17 6.44 Fog/Mist SCT005 14 12 88% 76.1 0.0
27 10:55 W 13 6.44 Fog/Mist CLR 14 13 94% 76.1 0.0
27 10:35 NW 13 6.44 Fog/Mist CLR 14 12 88% 76.07 0.0
27 10:15 W 13 6.44 Fog/Mist CLR 14 12 88% 76.07 0.0
27 09:55 W 11 6.44 Fog/Mist CLR 14 12 88% 76.07 0.0
27 09:35 W 11 6.44 Fog/Mist FEW013 13 12 94% 76.07 0.0
27 09:15 Vrbl 9 6.44 Fog/Mist FEW012 13 12 94% 76.07 0.0
27 08:55 W 7 6.44 Fog/Mist SCT009 13 12 94% 76.07 0.0
27 08:35 Calm 6.44 Fog/Mist BKN008 13 12 94% 76.05 0.0
27 08:15 S 7 6.44 Fog/Mist BKN008 12 12 100% 76.05 0.0
27 07:55 Vrbl 6 6.44 Fog/Mist BKN007 BKN011 12 12 100% 76.02 0.0
27 07:35 Calm 6.44 Fog/Mist BKN008 12 12 100% 76.02 0.0
27 07:15 Calm 8.05 Fog/Mist OVC008 12 11 94% 76.02 0.0
27 06:35 Calm 8.05 Fog/Mist BKN010 10 10 100% 76 0.0
27 06:15 Calm 9.66 Fog/Mist OVC010 10 10 100% 76 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)