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.
02 16:35 Vrbl 9 4.83 Fog/Mist FEW010 14 13 94% 76.4 0.0
02 16:15 SW 7 6.44 Fog/Mist FEW012 14 13 94% 76.38 0.0
02 15:55 SW 9 6.44 Fog/Mist SCT013 14 13 94% 76.4 0.0
02 15:35 SW 9 8.05 Fog/Mist BKN013 15 13 88% 76.4 0.0
02 15:15 W 11 9.66 Fog/Mist OVC013 15 13 88% 76.43 0.0
02 14:55 Vrbl 11 8.05 Fog/Mist BKN013 15 13 88% 76.43 0.0
02 14:35 Vrbl 7 6.44 Fog/Mist CLR 14 13 94% 76.43 0.0
02 14:15 Vrbl 11 4.83 Fog/Mist CLR 15 13 88% 76.43 0.0
02 13:55 SW 11 6.44 Fog/Mist FEW015 16 14 88% 76.43 0.0
02 13:35 SW 11 8.05 Fog/Mist FEW013 FEW019 15 13 88% 76.43 0.0
02 13:15 W 13 8.05 Fog/Mist FEW013 SCT019 15 13 88% 76.4 0.0
02 12:55 Vrbl 9 8.05 Fog/Mist SCT013 15 13 88% 76.43 0.0
02 12:35 SW 9 9.66 Fog/Mist BKN013 14 13 94% 76.4 0.0
02 12:15 Vrbl 7 8.05 Mostly Cloudy BKN013 0 0 0% 76.4 0.0
02 11:55 SW 11 6.44 Fog/Mist BKN013 14 13 94% 76.4 0.0
02 11:35 Calm 6.44 Fog/Mist BKN013 13 12 94% 76.4 0.0
02 11:15 SW 9 6.44 Fog/Mist BKN013 13 12 94% 76.4 0.0
02 10:55 W 9 6.44 Fog/Mist FEW012 13 12 94% 76.4 0.0
02 10:35 W 9 6.44 Fog/Mist FEW010 13 12 94% 76.38 0.0
02 10:15 SW 9 6.44 Fog/Mist FEW009 13 12 94% 76.38 0.0
02 09:55 Vrbl 7 6.44 Fog/Mist SCT009 13 12 94% 76.35 0.0
02 09:35 SW 9 6.44 Fog/Mist BKN008 12 12 100% 76.33 0.0
02 09:15 Calm 6.44 Fog/Mist BKN008 13 12 94% 76.33 0.0
02 08:55 S 11 6.44 Fog/Mist BKN008 12 12 100% 76.3 0.0
02 08:35 S 7 6.44 Fog/Mist BKN008 12 12 100% 76.3 0.0
02 08:15 S 7 6.44 Fog/Mist BKN008 12 12 100% 76.28 0.0
02 07:55 S 9 6.44 Overcast OVC008 0 0 0% 76.3 0.0
02 07:35 S 7 6.44 Fog/Mist OVC008 12 12 100% 76.28 0.0
02 07:15 SW 6 6.44 Fog/Mist OVC008 12 12 100% 76.28 0.0
02 06:55 Calm 6.44 Fog/Mist OVC009 12 12 100% 76.28 0.0
02 06:35 Calm 6.44 Fog/Mist OVC008 12 12 100% 76.28 0.0
02 06:15 W 7 4.83 Fog/Mist OVC007 12 12 100% 76.25 0.0
02 05:55 Calm 8.05 Fog/Mist OVC007 12 12 100% 76.25 0.0
02 05:35 E 6 8.05 Overcast OVC007 0 0 0% 76.23 0.0
02 05:15 Calm 8.05 Fog/Mist OVC007 12 12 100% 76.23 0.0
02 04:55 NE 7 8.05 Fog/Mist OVC006 11 11 100% 76.2 0.0
02 04:35 E 9 8.05 Fog/Mist OVC006 12 12 100% 76.2 0.0
02 04:15 E 7 6.44 Fog/Mist OVC006 12 12 100% 76.2 0.0
02 03:55 E 9 6.44 Fog/Mist OVC006 12 12 100% 76.2 0.0
02 03:35 Calm 6.44 Fog/Mist OVC006 12 12 100% 76.23 0.0
02 03:15 SE 6 6.44 Overcast OVC006 0 0 0% 76.23 0.0
02 02:55 SE 7 6.44 Fog/Mist OVC006 12 12 100% 76.23 0.0
02 02:35 SE 7 6.44 Fog/Mist OVC006 12 12 100% 76.23 0.0
02 02:15 E 9 6.44 Fog/Mist OVC006 12 12 100% 76.25 0.0
02 01:55 SE 6 6.44 Overcast OVC006 0 0 0% 76.25 0.0
02 01:35 Calm 6.44 Fog/Mist OVC006 12 12 100% 76.28 0.0
02 01:15 Calm 6.44 Fog/Mist OVC005 12 12 100% 76.28 0.0
02 00:55 SW 7 4.83 Overcast OVC005 0 0 0% 76.28 0.0
02 00:35 S 9 4.83 Fog/Mist OVC005 12 12 100% 76.25 0.0
02 00:15 S 9 4.83 Overcast OVC006 0 0 0% 76.25 0.0
01 23:55 S 9 4.83 Fog/Mist OVC006 12 12 100% 76.25 0.0
01 23:35 Calm 4.83 Fog/Mist OVC005 12 12 100% 76.28 0.0
01 23:15 SW 7 4.83 Fog/Mist OVC006 12 12 100% 76.25 0.0
01 22:55 SW 7 4.83 Fog/Mist OVC006 12 12 100% 76.25 0.0
01 22:35 Calm 4.83 Fog/Mist OVC006 12 12 100% 76.25 0.0
01 22:15 Calm 4.83 Fog/Mist OVC006 12 12 100% 76.23 0.0
01 21:55 Calm 4.83 Fog/Mist OVC006 12 12 100% 76.23 0.0
01 21:15 Calm 4.83 Fog/Mist OVC007 13 13 100% 76.17 0.0
01 20:55 Calm 4.83 Fog/Mist OVC007 13 13 100% 76.17 0.0
01 20:35 Calm 3.22 Fog/Mist BKN007 12 12 100% 76.17 0.0
01 20:15 W 6 3.22 Fog/Mist CLR 12 12 100% 76.15 0.0
01 19:55 W 7 4.02 Fog/Mist CLR 13 13 100% 76.15 0.0
01 19:35 W 7 4.02 Fog/Mist CLR 13 13 100% 76.12 0.0
01 19:15 W 9 4.02 Fog/Mist CLR 14 13 94% 76.1 0.0
01 18:55 NW 7 4.83 Fog/Mist CLR 14 13 94% 76.1 0.0
01 18:35 NW 11 4.02 Fair CLR 0 0 0% 76.1 0.0
01 18:15 NW 13 4.83 Fog/Mist CLR 14 13 94% 76.12 0.0
01 17:55 NW 13 4.83 Fog/Mist CLR 14 13 94% 76.12 0.0
01 17:35 NW 15 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 17:15 NW 17 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 16:55 NW 15 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 16:35 NW 19 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 16:15 NW 15 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 15:55 NW 17 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 15:35 NW 17 4.83 Fog/Mist CLR 15 14 94% 76.15 0.0
01 15:15 NW 19 4.83 Fog/Mist CLR 15 14 94% 76.15 0.0
01 14:55 NW 17 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 14:35 NW 15 G 26 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 14:15 NW 19 G 28 4.83 Fog/Mist CLR 15 13 88% 76.17 0.0
01 13:55 NW 20 4.83 Fog/Mist CLR 15 13 88% 76.17 0.0
01 13:35 NW 17 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 13:15 NW 19 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 12:55 NW 19 4.83 Fair with Haze CLR 15 13 88% 76.15 0.0
01 12:35 NW 19 4.83 Fog/Mist CLR 15 13 88% 76.15 0.0
01 12:15 NW 19 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 11:55 NW 17 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 11:35 NW 17 4.83 Fog/Mist CLR 15 13 88% 76.12 0.0
01 11:15 NW 13 4.83 Fog/Mist CLR 14 13 94% 76.12 0.0
01 10:55 W 13 4.83 Fog/Mist CLR 14 13 94% 76.12 0.0
01 10:35 W 13 4.02 Fog/Mist CLR 14 13 94% 76.12 0.0
01 10:15 W 11 4.02 Fog/Mist CLR 14 13 94% 76.15 0.0
01 09:55 Vrbl 11 4.02 Fog/Mist CLR 13 12 94% 76.15 0.0
01 09:35 W 11 4.02 Fog/Mist CLR 13 13 100% 76.12 0.0
01 09:15 W 11 4.02 Fog/Mist CLR 13 13 100% 76.12 0.0
01 08:55 NW 9 4.02 Fog/Mist FEW008 13 13 100% 76.12 0.0
01 08:35 NW 9 4.02 Fog/Mist BKN008 13 13 100% 76.1 0.0
01 08:15 W 9 3.22 Fog/Mist BKN008 12 12 100% 76.1 0.0
01 07:55 Calm 4.02 Fog/Mist BKN008 12 12 100% 76.1 0.0
01 07:35 Calm 4.83 Fog/Mist BKN008 11 11 100% 76.1 0.0
01 07:15 Calm 4.83 Fog/Mist SCT008 10 10 100% 76.1 0.0
01 06:55 Calm 6.44 A Few Clouds FEW007 0 0 0% 76.1 0.0
01 06:35 Calm 4.83 Fog/Mist SCT008 8 8 100% 76.07 0.0
01 06:15 Calm 4.83 Fog/Mist SCT007 7 7 100% 76.07 0.0
01 05:55 Calm 4.83 Fog/Mist BKN007 7 7 100% 76.05 0.0
01 05:35 Calm 6.44 Fog/Mist BKN007 7 7 100% 76.05 0.0
01 05:15 Calm 8.05 Fog/Mist BKN008 7 7 100% 76.05 0.0
01 04:55 Calm 8.05 Fog/Mist SCT008 0 0 0% 76.05 0.0
01 04:35 Calm 8.05 Fog/Mist FEW008 7 7 100% 76.05 0.0
01 04:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.05 0.0
01 03:55 Calm 8.05 Fog/Mist CLR 8 8 100% 76.05 0.0
01 03:35 Calm 8.05 Fog/Mist CLR 8 8 100% 76.05 0.0
01 03:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.05 0.0
01 02:55 Calm 8.05 Fog/Mist CLR 7 7 100% 76.05 0.0
01 02:35 Calm 8.05 Fog/Mist CLR 8 8 100% 76.07 0.0
01 02:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.05 0.0
01 01:55 Calm 8.05 Fog/Mist CLR 8 8 100% 76.07 0.0
01 01:35 Calm 8.05 Fog/Mist CLR 7 7 100% 76.07 0.0
01 01:15 Calm 8.05 Fog/Mist CLR 8 8 100% 76.07 0.0
01 00:55 Calm 8.05 Fog/Mist CLR 7 7 100% 76.1 0.0
01 00:35 Calm 8.05 Fog/Mist CLR 8 8 100% 76.1 0.0
01 00:15 Calm 6.44 Fog/Mist CLR 9 9 100% 76.1 0.0
31 23:55 Calm 6.44 Fog/Mist CLR 8 8 100% 76.12 0.0
31 23:35 Calm 8.05 Fog/Mist CLR 8 8 100% 76.12 0.0
31 23:15 Calm 8.05 Fog/Mist CLR 9 9 100% 76.15 0.0
31 22:55 Calm 6.44 Fog/Mist CLR 9 9 100% 76.15 0.0
31 22:35 Calm 6.44 Fog/Mist CLR 9 9 100% 76.15 0.0
31 22:15 Calm 6.44 Fog/Mist CLR 10 10 100% 76.15 0.0
31 21:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.15 0.0
31 21:35 Calm 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
31 21:15 NE 6 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
31 20:55 N 6 6.44 Fog/Mist CLR 12 12 100% 76.15 0.0
31 20:35 N 7 4.83 Fog/Mist CLR 12 12 100% 76.15 0.0
31 19:55 NW 15 4.83 Fog/Mist CLR 12 12 100% 76.15 0.0
31 19:35 NW 19 4.83 Fog/Mist CLR 13 12 94% 76.15 0.0
31 19:15 NW 20 4.83 Fair CLR 0 0 0% 76.15 0.0
31 18:55 NW 17 4.83 Fog/Mist CLR 13 12 94% 76.15 0.0
31 18:35 NW 22 4.83 Fog/Mist CLR 14 12 88% 76.15 0.0
31 18:15 NW 20 4.83 Fog/Mist CLR 14 12 88% 76.17 0.0
31 17:55 NW 22 4.83 Fog/Mist CLR 14 12 88% 76.17 0.0
31 17:35 NW 22 4.83 Fog/Mist CLR 14 12 88% 76.2 0.0
31 17:15 NW 24 4.83 Fog/Mist CLR 14 12 88% 76.2 0.0
31 16:55 NW 22 4.83 Fog/Mist CLR 15 12 82% 76.23 0.0
31 16:35 NW 22 4.83 Fog/Mist CLR 14 12 88% 76.23 0.0
31 16:15 NW 26 4.83 Fog/Mist CLR 14 12 88% 76.23 0.0
31 15:55 NW 22 6.44 Fog/Mist CLR 15 13 88% 76.25 0.0
31 15:35 NW 24 4.83 Fog/Mist CLR 15 13 88% 76.25 0.0
31 15:15 NW 24 4.83 Fog/Mist CLR 15 13 88% 76.28 0.0
31 14:55 NW 26 4.83 Fog/Mist CLR 15 13 88% 76.28 0.0
31 14:35 NW 24 6.44 Fog/Mist CLR 14 12 88% 76.3 0.0
31 14:15 NW 22 6.44 Fair with Haze CLR 15 13 88% 76.3 0.0
31 13:55 NW 20 4.83 Fog/Mist CLR 14 12 88% 76.3 0.0
31 13:35 NW 22 4.83 Fog/Mist CLR 15 12 82% 76.3 0.0
31 13:15 NW 22 4.83 Fog/Mist CLR 15 13 88% 76.3 0.0
31 12:55 NW 22 4.83 Fog/Mist CLR 0 0 0% 76.33 0.0
31 12:35 NW 19 4.83 Fair CLR 0 0 0% 76.33 0.0
31 12:15 NW 19 4.83 Fog/Mist CLR 14 12 88% 76.33 0.0
31 11:55 NW 19 4.83 Fog/Mist CLR 14 12 88% 76.33 0.0
31 11:35 NW 15 4.83 Fog/Mist CLR 15 13 88% 76.33 0.0
31 11:15 NW 17 6.44 Fog/Mist CLR 14 12 88% 76.33 0.0
31 10:55 NW 19 6.44 Fog/Mist CLR 14 12 88% 76.33 0.0
31 10:35 NW 13 6.44 Fog/Mist CLR 14 12 88% 76.33 0.0
31 10:15 NW 17 4.83 Fair CLR 0 0 0% 76.33 0.0
31 09:55 NW 17 4.83 Fog/Mist CLR 13 12 94% 76.33 0.0
31 09:35 NW 19 6.44 Fog/Mist CLR 13 12 94% 76.33 0.0
31 09:15 NW 17 4.83 Fog/Mist CLR 13 12 94% 76.35 0.0
31 08:55 NW 15 4.83 Fog/Mist CLR 13 12 94% 76.35 0.0
31 08:35 NW 13 6.44 Fog/Mist CLR 13 12 94% 76.35 0.0
31 08:15 NW 11 6.44 Fog/Mist CLR 12 12 100% 76.35 0.0
31 07:55 N 7 4.83 Fog/Mist SCT013 12 12 100% 76.35 0.0
31 07:35 Calm 4.83 Fog/Mist SCT013 12 11 94% 76.35 0.0
31 07:15 Calm 4.83 Fog/Mist SCT012 11 11 100% 76.33 0.0
31 06:55 Calm 4.83 Fog/Mist BKN013 10 10 100% 76.33 0.0
31 06:35 Calm 4.83 Mostly Cloudy BKN013 0 0 0% 76.33 0.0
31 06:15 Calm 4.83 Mostly Cloudy BKN013 0 0 0% 76.33 0.0
31 05:55 E 6 4.83 Fog/Mist BKN012 10 10 100% 76.33 0.0
31 05:35 Calm 6.44 Fog/Mist OVC012 11 11 100% 76.33 0.0
31 05:15 NE 6 6.44 Fog/Mist OVC011 11 11 100% 76.33 0.0
31 04:55 Calm 6.44 Fog/Mist OVC011 11 11 100% 76.33 0.0
31 04:35 E 7 6.44 Fog/Mist OVC011 11 11 100% 76.33 0.0
31 04:15 E 6 6.44 Fog/Mist OVC011 11 11 100% 76.33 0.0
31 03:55 Calm 6.44 Fog/Mist OVC011 11 11 100% 76.35 0.0
31 03:35 Calm 6.44 Fog/Mist OVC011 11 11 100% 76.35 0.0
31 03:15 Calm 6.44 Fog/Mist OVC011 11 11 100% 76.35 0.0
31 02:55 Calm 6.44 Fog/Mist OVC011 11 11 100% 76.35 0.0
31 02:35 Calm 6.44 Fog/Mist OVC010 11 11 100% 76.35 0.0
31 02:15 Calm 6.44 Fog/Mist OVC010 11 11 100% 76.35 0.0
31 01:55 Calm 8.05 Fog/Mist OVC011 11 11 100% 76.35 0.0
31 01:35 Calm 8.05 Fog/Mist OVC011 10 10 100% 76.38 0.0
31 01:15 Calm 8.05 Fog/Mist OVC012 10 10 100% 76.38 0.0
31 00:55 Calm 8.05 Fog/Mist OVC013 9 9 100% 76.38 0.0
31 00:35 Calm 8.05 Fog/Mist OVC013 9 9 100% 76.4 0.0
31 00:15 Calm 8.05 Fog/Mist OVC013 9 9 100% 76.43 0.0
30 23:55 Calm 8.05 Fog/Mist OVC013 8 8 100% 76.43 0.0
30 23:35 Calm 8.05 Fog/Mist OVC013 8 8 100% 76.43 0.0
30 22:55 Calm 8.05 Fog/Mist SCT013 9 9 100% 76.45 0.0
30 22:35 Calm 8.05 Fog/Mist SCT013 9 9 100% 76.48 0.0
30 22:15 E 6 6.44 Fog/Mist SCT013 10 10 100% 76.48 0.0
30 21:55 Calm 6.44 Fog/Mist FEW013 11 11 100% 76.48 0.0
30 21:35 NW 15 8.05 Fog/Mist SCT013 11 11 100% 76.48 0.0
30 21:15 NW 15 8.05 Fog/Mist BKN013 11 11 100% 76.48 0.0
30 20:55 NW 17 4.83 Fog/Mist SCT013 12 11 94% 76.48 0.0
30 20:35 NW 19 G 28 4.83 Fog/Mist CLR 12 11 94% 76.48 0.0
30 20:15 NW 24 6.44 Fog/Mist CLR 12 11 94% 76.48 0.0
30 19:55 NW 24 6.44 Fog/Mist CLR 12 11 94% 76.48 0.0
30 19:35 N 24 G 33 6.44 Fog/Mist CLR 13 11 88% 76.48 0.0
30 19:15 N 22 6.44 Fair with Haze CLR 13 11 88% 76.48 0.0
30 18:55 N 22 G 35 6.44 Fair with Haze CLR 14 11 82% 76.48 0.0
30 18:35 N 24 G 37 6.44 Fair with Haze CLR 14 11 82% 76.5 0.0
30 18:15 NW 26 G 37 6.44 Fair with Haze CLR 14 11 82% 76.5 0.0
30 17:55 N 28 8.05 Partly Cloudy with Haze SCT013 14 11 82% 76.5 0.0
30 17:35 NW 26 8.05 Partly Cloudy with Haze SCT013 14 12 88% 76.5 0.0
30 17:15 NW 24 G 33 6.44 Fair CLR 0 0 0% 76.5 0.0
30 16:55 N 24 6.44 Partly Cloudy with Haze SCT013 14 12 88% 76.53 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)