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.
06 04:15 NW 7 12.87 Overcast OVC015 15 14 94% 76.15 0.0
06 03:55 NW 15 12.87 Overcast OVC015 15 14 94% 76.15 0.0
06 03:35 N 13 14.48 Overcast OVC015 15 14 94% 76.15 0.0
06 03:15 NW 13 12.87 Overcast OVC015 15 14 94% 76.15 0.0
06 02:55 NW 15 12.87 Overcast OVC014 15 14 94% 76.15 0.0
06 02:35 NW 13 12.87 Overcast OVC014 15 15 100% 76.15 0.0
06 02:15 NW 15 12.87 Overcast OVC014 15 15 100% 76.15 0.0
06 01:55 N 13 12.87 Overcast OVC014 15 15 100% 76.15 0.0
06 01:35 Calm 9.66 Fog/Mist OVC015 15 15 100% 76.17 0.0
06 01:15 Calm 6.44 Fog/Mist OVC014 14 14 100% 76.17 0.0
06 00:55 Calm 11.27 Overcast OVC014 14 14 100% 76.17 0.0
06 00:35 SE 6 12.87 Overcast OVC014 14 14 100% 76.17 0.0
05 23:55 Calm 9.66 Fog/Mist BKN014 BKN065 14 14 100% 76.17 0.0
05 23:35 N 7 9.66 Fog/Mist SCT013 SCT070 15 15 100% 76.17 0.0
05 23:15 N 7 9.66 Fog/Mist BKN013 15 15 100% 76.17 0.0
05 22:55 N 6 11.27 Mostly Cloudy BKN012 15 15 100% 76.17 0.0
05 22:35 N 9 11.27 Overcast BKN010 OVC014 16 16 100% 76.2 0.0
05 22:15 N 9 G 22 9.66 Fog/Mist BKN012 16 16 100% 76.17 0.0
05 21:55 N 15 8.05 Fog/Mist BKN010 BKN013 16 16 100% 76.17 0.0
05 21:35 N 13 9.66 Mostly Cloudy BKN011 0 0 0% 76.17 0.0
05 20:55 N 13 8.05 Fog/Mist CLR 16 16 100% 76.15 0.0
05 20:35 N 11 8.05 Fog/Mist FEW010 16 16 100% 76.12 0.0
05 20:15 N 15 G 26 8.05 Fog/Mist CLR 16 16 100% 76.12 0.0
05 19:55 N 15 G 24 9.66 Fog/Mist CLR 16 15 94% 76.12 0.0
05 19:35 N 17 9.66 Fog/Mist CLR 16 15 94% 76.12 0.0
05 19:15 N 17 9.66 Fog/Mist CLR 16 16 100% 76.12 0.0
05 18:55 N 17 8.05 Fog/Mist CLR 17 16 94% 76.12 0.0
05 18:35 N 20 9.66 Fog/Mist CLR 17 16 94% 76.12 0.0
05 18:15 N 20 9.66 Fog/Mist CLR 18 16 88% 76.12 0.0
05 17:55 N 22 11.27 Fair CLR 18 16 88% 76.12 0.0
05 17:35 N 20 G 30 11.27 Fair CLR 18 15 83% 76.15 0.0
05 17:15 NW 24 11.27 Fair CLR 19 15 78% 76.15 0.0
05 16:55 NW 26 11.27 Fair CLR 0 0 0% 76.15 0.0
05 16:35 NW 30 11.27 Fair CLR 19 16 83% 76.15 0.0
05 16:15 NW 20 9.66 Fair with Haze CLR 19 16 83% 76.15 0.0
05 15:55 NW 22 11.27 Fair CLR 19 16 83% 76.17 0.0
05 15:35 NW 28 12.87 Fair CLR 19 16 83% 76.15 0.0
05 15:15 NW 24 G 33 11.27 Fair CLR 19 16 83% 76.17 0.0
05 14:55 NW 28 11.27 Fair CLR 19 16 83% 76.17 0.0
05 14:35 NW 26 11.27 Fair CLR 19 15 78% 76.17 0.0
05 14:15 NW 24 11.27 Fair CLR 19 15 78% 76.2 0.0
05 13:55 N 22 12.87 Fair CLR 19 15 78% 76.2 0.0
05 13:35 N 20 11.27 Fair CLR 19 16 83% 76.2 0.0
05 13:15 NW 17 12.87 Fair CLR 0 0 0% 76.17 0.0
05 10:55 W 9 9.66 Fog/Mist CLR 18 16 88% 76.2 0.0
05 10:35 W 13 9.66 Fog/Mist CLR 17 16 94% 76.2 0.0
05 10:15 W 13 9.66 Fog/Mist CLR 17 16 94% 76.17 0.0
05 09:55 NW 11 9.66 Fog/Mist CLR 17 16 94% 76.17 0.0
05 09:35 NW 11 8.05 Fog/Mist CLR 17 16 94% 76.15 0.0
05 09:15 NW 7 9.66 Fog/Mist CLR 17 16 94% 76.15 0.0
05 08:55 N 11 9.66 Fog/Mist BKN011 16 16 100% 76.15 0.0
05 08:35 N 7 9.66 Fog/Mist BKN008 BKN013 16 16 100% 76.15 0.0
05 08:15 Calm 11.27 Mostly Cloudy BKN008 15 15 100% 76.15 0.0
05 07:55 Calm 11.27 Fair CLR 13 13 100% 76.15 0.0
05 07:35 Calm 11.27 A Few Clouds FEW009 12 12 100% 76.12 0.0
05 07:15 E 6 11.27 Mostly Cloudy BKN010 12 12 100% 76.12 0.0
05 06:55 Calm 11.27 Overcast OVC009 12 12 100% 76.1 0.0
05 06:35 Calm 11.27 Mostly Cloudy BKN009 11 11 100% 76.1 0.0
05 06:15 Calm 11.27 Fair CLR 12 12 100% 76.1 0.0
05 05:55 Calm 11.27 Fair CLR 12 12 100% 76.1 0.0
05 05:35 Calm 11.27 A Few Clouds FEW010 13 13 100% 76.1 0.0
05 05:15 Calm 11.27 Fair CLR 13 13 100% 76.1 0.0
05 04:55 Vrbl 7 9.66 Fog/Mist FEW012 15 15 100% 76.1 0.0
05 04:35 N 9 9.66 Fog/Mist BKN013 15 15 100% 76.1 0.0
05 04:15 N 11 9.66 Fog/Mist OVC013 15 15 100% 76.1 0.0
05 03:15 N 9 9.66 Fog/Mist OVC012 15 15 100% 76.12 0.0
05 02:55 N 7 9.66 Fog/Mist BKN010 OVC013 15 15 100% 76.12 0.0
05 02:35 NW 9 9.66 Fog/Mist OVC013 15 15 100% 76.12 0.0
05 02:15 NW 6 8.05 Fog/Mist OVC013 13 13 100% 76.15 0.0
05 01:55 Calm 9.66 Fog/Mist OVC013 12 12 100% 76.17 0.0
05 01:35 Calm 9.66 Fog/Mist OVC013 12 12 100% 76.17 0.0
05 01:15 Calm 8.05 Fog/Mist OVC012 12 12 100% 76.17 0.0
05 00:55 Calm 9.66 Fog/Mist OVC012 12 12 100% 76.17 0.0
05 00:35 Calm 9.66 Fog/Mist OVC010 12 12 100% 76.15 0.0
05 00:15 Calm 8.05 Fog/Mist NULL 12 12 100% 76.15 0.0
04 23:55 Calm 9.66 Fog/Mist CLR 12 12 100% 76.15 0.0
04 23:35 N 9 8.05 Fog/Mist CLR 14 14 100% 76.15 0.0
04 23:15 Calm 8.05 Fog/Mist CLR 13 13 100% 76.15 0.0
04 22:55 Calm 8.05 Fog/Mist CLR 13 13 100% 76.15 0.0
04 22:35 N 7 8.05 Fog/Mist CLR 15 15 100% 76.15 0.0
04 22:15 N 7 8.05 Fog/Mist CLR 15 15 100% 76.17 0.0
04 21:55 N 7 8.05 Fog/Mist NULL 15 15 100% 76.17 0.0
04 21:35 N 9 8.05 Fog/Mist CLR 15 15 100% 76.15 0.0
04 21:15 N 11 9.66 Fair CLR 0 0 0% 76.15 0.0
04 20:55 N 13 6.44 Fog/Mist CLR 15 15 100% 76.15 0.0
04 20:35 N 13 8.05 Fog/Mist CLR 16 16 100% 76.12 0.0
04 20:15 N 13 8.05 Fog/Mist CLR 16 16 100% 76.12 0.0
04 19:55 N 11 8.05 Fog/Mist CLR 16 16 100% 76.12 0.0
04 19:35 NW 15 8.05 Fog/Mist CLR 16 16 100% 76.1 0.0
04 19:15 NW 15 8.05 Fog/Mist CLR 17 16 94% 76.1 0.0
04 18:55 NW 17 9.66 Fair CLR 0 0 0% 76.12 0.0
04 18:35 N 22 9.66 NULL NULL 0 0 0% 76.1 0.0
04 18:15 N 17 9.66 Fair CLR 0 0 0% 76.12 0.0
04 17:55 NW 22 9.66 Fog/Mist FEW013 18 16 88% 76.1 0.0
04 17:35 NW 22 9.66 Fog/Mist CLR 18 16 88% 76.1 0.0
04 17:20 NW 22 9.66 Fair CLR 0 0 0% 76.1 0.0
04 16:55 NW 20 8.05 Fair with Haze CLR 18 16 88% 76.1 0.0
04 16:35 NW 19 9.66 Fair with Haze CLR 19 16 83% 76.12 0.0
04 16:15 NW 20 9.66 Fair with Haze CLR 19 16 83% 76.12 0.0
04 15:55 N 20 11.27 Fair CLR 20 16 78% 76.15 0.0
04 15:35 NW 20 9.66 Fair with Haze CLR 19 15 78% 76.15 0.0
04 15:15 NW 19 11.27 Fair CLR 19 15 78% 76.15 0.0
04 14:55 NW 19 11.27 Fair CLR 19 16 83% 76.15 0.0
04 14:35 NW 15 11.27 A Few Clouds FEW013 19 16 83% 76.17 0.0
04 14:15 NW 17 11.27 A Few Clouds FEW013 19 16 83% 76.17 0.0
04 13:55 NW 13 11.27 Fair CLR 19 16 83% 76.17 0.0
04 13:35 Calm 11.27 Fair CLR 19 16 83% 76.17 0.0
04 13:15 W 13 9.66 Fair with Haze CLR 19 16 83% 76.15 0.0
04 12:35 W 13 9.66 Fair with Haze CLR 18 16 88% 76.15 0.0
04 12:15 NW 11 11.27 Fair CLR 18 16 88% 76.17 0.0
04 11:55 NW 13 11.27 Fair CLR 18 16 88% 76.17 0.0
04 11:35 W 13 12.87 Fair CLR 17 16 94% 76.17 0.0
04 11:15 W 13 11.27 Fair CLR 18 16 88% 76.15 0.0
04 10:55 SW 11 11.27 Fair CLR 17 16 94% 76.15 0.0
04 10:35 NW 9 11.27 Fair CLR 0 0 0% 76.15 0.0
04 10:15 NW 9 9.66 Fog/Mist CLR 17 16 94% 76.15 0.0
04 09:55 W 9 6.44 Fog/Mist CLR 16 16 100% 76.15 0.0
04 09:35 NW 7 4.83 Fog/Mist CLR 16 16 100% 76.12 0.0
04 09:15 NW 7 4.83 Fog/Mist FEW007 FEW012 16 16 100% 76.1 0.0
04 08:55 NW 7 6.44 Fog/Mist SCT007 BKN012 16 16 100% 76.1 0.0
04 08:35 Calm 8.05 Fog/Mist FEW008 15 15 100% 76.1 0.0
04 08:15 Calm 8.05 Fog/Mist CLR 14 14 100% 76.07 0.0
04 07:55 Calm 8.05 Fog/Mist CLR 13 13 100% 76.07 0.0
04 07:35 Calm 6.44 Fog/Mist CLR 12 12 100% 76.07 0.0
04 07:15 Calm 6.44 Fog/Mist SCT012 11 11 100% 76.05 0.0
04 06:55 Calm 6.44 Fog/Mist OVC012 11 11 100% 76.02 0.0
04 06:35 Calm 0.24 Fog OVC013 11 11 100% 76.02 0.0
04 06:15 Calm 4.83 Fog/Mist CLR 11 11 100% 76 0.0
04 05:55 Calm 6.44 Fog/Mist CLR 11 11 100% 76 0.0
04 05:35 Calm 6.44 Fog/Mist CLR 12 12 100% 76 0.0
04 05:15 Calm 8.05 Fog/Mist CLR 13 13 100% 76 0.0
04 04:55 NE 9 3.22 A Few Clouds FEW010 FEW030 0 0 0% 75.97 0.0
04 04:35 Calm 4.02 Fog/Mist BKN010 BKN029 14 14 100% 75.97 0.0
04 04:15 Calm 6.44 Fog/Mist OVC008 14 14 100% 76 0.0
04 03:55 N 11 3.22 Fog/Mist BKN006 BKN010 BKN026 14 14 100% 75.97 0.0
04 03:35 Calm 0.24 Fog OVC005 14 14 100% 75.97 0.0
04 03:15 Calm 0.24 Fog BKN001 OVC007 14 14 100% 75.97 0.0
04 02:55 Calm 0.24 Fog BKN007 OVC013 14 14 100% 75.97 0.0
04 02:15 Calm 2.82 Fog/Mist BKN007 BKN018 BKN027 15 15 100% 75.97 0.0
04 01:55 Calm 6.44 Fog/Mist OVC007 16 16 100% 75.97 0.0
04 01:35 Calm 4.83 Fog/Mist OVC008 16 16 100% 75.95 0.0
04 00:55 Calm 4.83 Fog/Mist BKN010 BKN025 OVC031 15 15 100% 75.97 0.0
04 00:35 Calm 2.41 Fog/Mist BKN011 OVC025 16 16 100% 75.95 0.0
04 00:15 Calm 4.02 Fog/Mist OVC010 16 16 100% 75.95 0.0
03 23:55 Calm 9.66 Fog/Mist SCT009 OVC060 16 16 100% 75.95 0.0
03 23:35 Calm 8.05 Fog/Mist FEW044 SCT050 OVC060 16 16 100% 75.95 0.0
03 23:15 Calm 9.66 Fog/Mist FEW005 SCT012 BKN041 16 16 100% 75.95 0.0
03 22:55 Calm 9.66 Fog/Mist SCT005 BKN012 OVC037 16 16 100% 75.95 0.0
03 22:35 NW 9 9.66 Fog/Mist BKN029 OVC036 16 16 100% 75.97 0.0
03 22:15 N 7 8.05 Fog/Mist FEW018 OVC027 16 16 100% 75.97 0.0
03 21:55 N 7 6.44 Fog/Mist OVC021 16 16 100% 75.97 0.0
03 21:35 NW 7 4.83 Fog/Mist OVC022 16 16 100% 75.97 0.0
03 21:15 Calm 14.48 Overcast BKN022 OVC040 16 16 100% 75.95 0.0
03 20:55 N 9 4.02 Fog/Mist BKN020 OVC040 16 16 100% 75.95 0.0 0.18
03 20:35 N 11 2.01 Light Rain Fog/Mist SCT004 OVC018 16 16 100% 75.95 0.0
03 20:15 NW 13 2.01 Light Rain Fog/Mist BKN004 BKN010 OVC014 16 16 100% 75.92 0.0
03 19:55 N 13 2.01 Light Rain Fog/Mist OVC004 16 16 100% 75.92 0.0 0.13
03 19:35 Vrbl 9 2.01 Fog/Mist OVC005 17 17 100% 75.92 0.0
03 19:15 S 15 1.21 Overcast OVC007 0 0 0% 75.92 0.0
03 18:55 S 15 4.83 Fog/Mist OVC007 17 17 100% 75.95 0.0
03 18:35 S 15 6.44 Fog/Mist OVC008 17 17 100% 75.95 0.0
03 18:15 S 15 8.05 Fog/Mist OVC008 17 17 100% 75.95 0.0
03 17:55 S 15 8.05 Fog/Mist OVC009 17 17 100% 75.97 0.0
03 17:35 S 15 9.66 Fog/Mist OVC011 17 17 100% 75.97 0.0
03 17:15 S 19 G 28 9.66 Fog/Mist OVC013 17 17 100% 75.97 0.0
03 16:55 S 17 9.66 Fog/Mist OVC015 17 17 100% 76 0.0
03 16:35 S 17 9.66 Fog/Mist BKN017 OVC022 17 17 100% 76 0.0
03 16:15 S 13 9.66 Fog/Mist BKN021 BKN026 OVC038 17 17 100% 76.02 0.0
03 15:55 SE 13 9.66 Fog/Mist OVC040 18 17 94% 76.05 0.0
03 15:35 SE 15 11.27 Overcast SCT034 OVC042 18 17 94% 76.05 0.0
03 15:15 SE 15 9.66 Fog/Mist OVC033 18 17 94% 76.07 0.0
03 14:55 S 15 11.27 Overcast SCT016 OVC034 18 17 94% 76.07 0.0
03 14:35 S 13 9.66 Overcast BKN015 OVC034 0 0 0% 76.1 0.0
03 14:15 SE 13 11.27 Overcast SCT014 OVC035 18 17 94% 76.12 0.0
03 13:55 SE 15 11.27 Overcast FEW015 OVC034 18 17 94% 76.12 0.0
03 13:35 SE 17 11.27 Overcast FEW015 OVC034 18 17 94% 76.12 0.0
03 13:15 S 17 12.87 Overcast FEW020 OVC037 19 17 88% 76.12 0.0
03 12:55 S 15 G 26 12.87 Overcast SCT018 BKN032 OVC040 19 17 88% 76.12 0.0
03 12:35 S 17 G 26 12.87 Overcast BKN018 BKN022 OVC030 19 17 88% 76.15 0.0
03 12:15 S 19 11.27 Overcast BKN023 OVC029 18 17 94% 76.17 0.0
03 11:55 S 17 12.87 Overcast OVC025 19 17 88% 76.17 0.0
03 11:35 S 15 11.27 Overcast FEW013 BKN022 OVC029 18 16 88% 76.17 0.0
03 11:15 S 17 12.87 Overcast SCT013 BKN024 OVC032 18 16 88% 76.17 0.0
03 10:55 S 11 G 22 12.87 Overcast BKN013 OVC035 18 16 88% 76.17 0.0
03 10:35 S 15 12.87 Mostly Cloudy BKN013 BKN036 18 16 88% 76.17 0.0
03 10:15 S 15 12.87 Overcast OVC014 0 0 0% 76.17 0.0
03 09:55 S 19 12.87 Overcast OVC015 18 16 88% 76.2 0.0
03 09:35 S 17 14.48 Mostly Cloudy BKN015 18 16 88% 76.2 0.0
03 09:15 S 15 12.87 Overcast BKN016 OVC040 18 16 88% 76.2 0.0
03 08:55 S 13 11.27 Mostly Cloudy FEW017 BKN039 BKN120 18 16 88% 76.2 0.0
03 08:35 SE 13 11.27 Overcast SCT017 OVC039 17 16 94% 76.2 0.0
03 08:15 S 11 11.27 Overcast BKN018 OVC041 17 16 94% 76.2 0.0
03 07:55 SE 9 11.27 Overcast OVC042 17 16 94% 76.2 0.0
03 07:35 SE 9 9.66 Fog/Mist OVC042 16 16 100% 76.17 0.0
03 07:15 SE 9 8.05 Fog/Mist BKN016 OVC042 15 15 100% 76.17 0.0
03 06:55 S 7 8.05 Fog/Mist OVC016 15 15 100% 76.17 0.0
03 06:35 Calm 11.27 Overcast OVC016 15 15 100% 76.17 0.0
03 06:15 Calm 12.87 Mostly Cloudy BKN014 BKN019 14 14 100% 76.17 0.0
03 05:55 S 6 14.48 Overcast OVC013 15 15 100% 76.17 0.0
03 05:35 Calm 12.87 Mostly Cloudy BKN013 BKN023 15 15 100% 76.17 0.0
03 05:15 SE 7 12.87 Mostly Cloudy SCT012 SCT017 BKN023 15 15 100% 76.17 0.0
03 04:35 S 6 9.66 Fog/Mist BKN012 OVC023 15 15 100% 76.2 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)