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 18:55 NW 17 G 26 9.66 Fog/Mist OVC012 13 12 94% 76.12 0.0
30 18:35 NW 20 9.66 Fog/Mist OVC013 13 12 94% 76.15 0.0
30 18:15 NW 15 G 24 9.66 Fog/Mist OVC013 13 12 94% 76.15 0.0
30 17:55 NW 22 9.66 Fog/Mist OVC013 13 12 94% 76.15 0.0
30 17:35 NW 19 9.66 Fog/Mist OVC013 13 12 94% 76.15 0.0
30 17:15 NW 20 9.66 Fog/Mist OVC013 13 12 94% 76.15 0.0
30 16:55 NW 19 9.66 Fog/Mist OVC013 14 12 88% 76.15 0.0
30 16:35 N 19 9.66 Fog/Mist OVC013 14 12 88% 76.15 0.0
30 16:15 N 17 11.27 Overcast OVC013 14 12 88% 76.15 0.0
30 15:55 NW 19 9.66 Fog/Mist OVC013 14 13 94% 76.17 0.0
30 15:35 NW 20 11.27 Overcast OVC013 14 12 88% 76.17 0.0
30 15:15 NW 17 G 26 9.66 Fog/Mist OVC013 14 12 88% 76.2 0.0
30 14:55 NW 22 9.66 Fog/Mist OVC013 14 12 88% 76.2 0.0
30 14:35 NW 19 9.66 Fog/Mist OVC013 15 12 82% 76.23 0.0
30 14:15 NW 15 9.66 Fog/Mist OVC013 14 13 94% 76.23 0.0
30 13:55 NW 17 9.66 Fog/Mist OVC013 14 13 94% 76.23 0.0
30 13:35 NW 13 G 24 8.05 Fog/Mist OVC013 14 12 88% 76.23 0.0
30 13:15 NW 15 9.66 Fog/Mist OVC013 14 12 88% 76.25 0.0
30 12:55 NW 11 11.27 Overcast OVC013 14 12 88% 76.25 0.0
30 12:35 NW 11 G 20 9.66 Fog/Mist OVC013 14 12 88% 76.25 0.0
30 12:15 Vrbl 11 9.66 Fog/Mist OVC013 14 12 88% 76.25 0.0
30 11:55 Vrbl 9 8.05 Fog/Mist OVC013 14 12 88% 76.25 0.0
30 11:35 NW 9 G 19 8.05 Fog/Mist OVC013 14 12 88% 76.28 0.0
30 11:15 NW 15 9.66 Fog/Mist OVC013 13 12 94% 76.28 0.0
30 10:55 NW 9 9.66 Fog/Mist OVC013 13 12 94% 76.25 0.0
30 10:35 NW 7 8.05 Fog/Mist OVC013 13 12 94% 76.25 0.0
30 10:15 NW 11 8.05 Fog/Mist OVC013 13 12 94% 76.28 0.0
30 09:55 Vrbl 7 8.05 Fog/Mist OVC013 13 12 94% 76.25 0.0
30 09:35 NW 7 6.44 Fog/Mist OVC013 13 12 94% 76.25 0.0
30 09:15 NW 9 8.05 Fog/Mist OVC013 13 12 94% 76.25 0.0
30 08:55 NW 11 6.44 Fog/Mist OVC013 13 12 94% 76.25 0.0
30 08:35 Calm 8.05 Fog/Mist OVC012 12 12 100% 76.25 0.0
30 08:15 Calm 6.44 Fog/Mist BKN011 12 12 100% 76.25 0.0
30 07:55 NW 7 6.44 Fog/Mist OVC011 12 12 100% 76.25 0.0
30 07:35 Calm 6.44 Fog/Mist OVC011 12 12 100% 76.23 0.0
30 07:15 W 9 8.05 Fog/Mist OVC011 12 12 100% 76.23 0.0
30 06:55 NW 9 6.44 Fog/Mist OVC011 12 12 100% 76.23 0.0
30 06:35 Calm 9.66 Fog/Mist OVC012 12 11 94% 76.2 0.0
30 06:15 NW 6 9.66 Fog/Mist OVC012 12 11 94% 76.23 0.0
30 05:55 Calm 11.27 Overcast OVC012 12 11 94% 76.23 0.0
30 05:35 Calm 9.66 Fog/Mist OVC012 12 11 94% 76.2 0.0
30 05:15 Vrbl 7 9.66 Fog/Mist OVC012 12 11 94% 76.2 0.0
30 04:55 NW 9 9.66 Fog/Mist OVC011 12 11 94% 76.23 0.0
30 04:35 NW 7 11.27 NULL NULL 0 0 0% 76.23 0.0
30 04:15 NW 11 0.00 NULL NULL 0 0 0% 76.23 0.0
30 00:04 NW 22 8.05 Fog/Mist NULL 12 12 100% 76.33 0.0
29 23:35 NW 15 9.66 Fog/Mist OVC011 12 12 100% 76.33 0.0
29 23:15 NW 13 G 26 11.27 Overcast OVC011 12 12 100% 76.33 0.0
29 22:55 N 19 9.66 Fog/Mist OVC012 13 12 94% 76.35 0.0
29 22:35 NW 17 9.66 Fog/Mist OVC012 13 12 94% 76.35 0.0
29 22:15 NW 17 9.66 Overcast OVC011 0 0 0% 76.35 0.0
29 21:55 N 19 9.66 Fog/Mist OVC012 12 12 100% 76.35 0.0
29 21:35 NW 19 9.66 Fog/Mist OVC012 13 12 94% 76.35 0.0
29 21:15 N 19 9.66 Fog/Mist OVC012 13 12 94% 76.35 0.0
29 20:55 N 20 G 31 9.66 Fog/Mist OVC012 13 12 94% 76.33 0.0
29 20:35 N 26 11.27 Overcast OVC012 13 12 94% 76.3 0.0
29 20:15 N 20 G 33 9.66 Fog/Mist OVC012 13 12 94% 76.3 0.0
29 19:55 N 24 8.05 Fog/Mist OVC012 13 12 94% 76.3 0.0
29 19:35 NW 22 G 35 8.05 Fog/Mist OVC012 13 12 94% 76.3 0.0
29 19:15 N 20 G 33 8.05 Fog/Mist BKN012 13 12 94% 76.3 0.0
29 18:55 N 24 9.66 Fog/Mist BKN013 13 12 94% 76.3 0.0
29 18:35 N 26 9.66 Fog/Mist BKN013 14 12 88% 76.33 0.0
29 18:15 N 26 G 39 9.66 Fog/Mist BKN013 14 12 88% 76.33 0.0
29 17:55 NW 26 G 37 9.66 Haze NULL 15 13 88% 76.33 0.0
29 17:35 N 28 9.66 Fog/Mist BKN013 14 12 88% 76.33 0.0
29 17:15 N 26 G 39 11.27 Mostly Cloudy BKN013 15 13 88% 76.33 0.0
29 16:55 NW 35 11.27 Mostly Cloudy and Breezy BKN013 15 13 88% 76.33 0.0
29 16:35 NW 24 G 35 11.27 Partly Cloudy SCT013 16 13 83% 76.35 0.0
29 16:15 NW 26 11.27 Partly Cloudy SCT013 15 13 88% 76.35 0.0
29 15:55 NW 24 11.27 Mostly Cloudy BKN013 16 13 83% 76.38 0.0
29 15:35 NW 26 12.87 Overcast OVC014 15 13 88% 76.4 0.0
29 15:15 NW 22 11.27 Mostly Cloudy BKN014 16 13 83% 76.43 0.0
29 14:55 NW 19 G 28 11.27 Mostly Cloudy BKN013 15 13 88% 76.43 0.0
29 14:35 N 19 11.27 Mostly Cloudy BKN013 15 13 88% 76.43 0.0
29 14:15 NW 19 G 30 11.27 Mostly Cloudy BKN014 15 13 88% 76.45 0.0
29 13:55 NW 17 9.66 Overcast with Haze OVC014 15 13 88% 76.45 0.0
29 13:35 NW 19 9.66 Fog/Mist OVC015 15 13 88% 76.45 0.0
29 13:15 NW 19 9.66 Overcast with Haze OVC016 16 13 83% 76.45 0.0
29 12:55 W 15 9.66 Overcast OVC017 0 0 0% 76.45 0.0
29 12:35 NW 15 9.66 Mostly Cloudy with Haze BKN017 15 13 88% 76.48 0.0
29 12:15 W 13 9.66 Fog/Mist FEW015 15 13 88% 76.48 0.0
29 11:55 W 13 9.66 Fog/Mist CLR 15 13 88% 76.48 0.0
29 11:35 W 13 9.66 Fog/Mist FEW013 15 13 88% 76.48 0.0
29 11:15 W 17 9.66 Fog/Mist FEW013 15 13 88% 76.48 0.0
29 10:55 SW 13 11.27 Fair CLR 14 13 94% 76.48 0.0
29 10:35 Vrbl 11 8.05 Fog/Mist CLR 15 13 88% 76.48 0.0
29 10:15 SW 13 9.66 Fog/Mist FEW013 14 13 94% 76.48 0.0
29 09:55 Vrbl 9 8.05 Fog/Mist OVC013 14 13 94% 76.5 0.0
29 09:35 S 9 8.05 Fog/Mist OVC013 14 13 94% 76.5 0.0
29 09:15 SE 13 8.05 Fog/Mist OVC013 13 13 100% 76.5 0.0
29 08:55 SE 9 8.05 Fog/Mist BKN013 13 13 100% 76.5 0.0
29 08:35 SE 9 6.44 Fog/Mist BKN011 13 13 100% 76.5 0.0
29 08:15 SE 11 6.44 Fog/Mist BKN009 12 12 100% 76.5 0.0
29 07:55 SE 13 6.44 Fog/Mist OVC009 12 12 100% 76.5 0.0
29 07:35 SE 11 8.05 Fog/Mist OVC008 12 12 100% 76.5 0.0
29 07:15 SE 9 8.05 Fog/Mist OVC008 11 11 100% 76.48 0.0
29 06:55 Calm 9.66 Overcast OVC008 0 0 0% 76.45 0.0
29 06:35 Calm 11.27 Overcast OVC008 10 10 100% 76.43 0.0
29 06:15 E 7 12.87 Overcast OVC009 10 10 100% 9 76.4 0.0
29 05:55 Calm 11.27 Overcast OVC009 10 10 100% 76.4 0.0
29 05:35 Vrbl 9 G 19 9.66 Fog/Mist OVC009 12 12 100% 76.4 0.0
29 05:15 Calm 9.66 Fog/Mist NULL 11 11 100% 76.4 0.0
29 04:55 N 13 9.66 Fog/Mist NULL 12 12 100% 76.43 0.0
29 04:35 N 13 9.66 Fog/Mist OVC010 12 12 100% 76.43 0.0
29 04:15 N 13 11.27 Overcast OVC010 0 0 0% 76.45 0.0
29 03:55 Calm 9.66 Fog/Mist OVC010 12 12 100% 76.45 0.0
29 03:35 Calm 14.48 Overcast OVC010 12 12 100% 76.45 0.0
29 03:15 N 7 12.87 Overcast OVC011 12 12 100% 76.48 0.0
29 02:55 N 11 12.87 Overcast OVC010 12 12 100% 76.48 0.0
29 02:35 Calm 11.27 Overcast OVC010 13 12 94% 76.48 0.0
29 02:15 NW 11 11.27 Overcast OVC010 13 12 94% 76.48 0.0
29 01:55 NW 20 12.87 Overcast OVC011 13 12 94% 76.48 0.0
29 01:35 N 15 12.87 Overcast OVC012 13 12 94% 76.5 0.0
29 01:15 NW 17 11.27 Overcast OVC012 13 12 94% 76.53 0.0
29 00:55 NW 17 12.87 Overcast OVC012 13 12 94% 76.56 0.0
29 00:35 NW 13 11.27 Overcast OVC012 13 13 100% 76.56 0.0
29 00:15 NW 17 12.87 Overcast OVC012 13 13 100% 76.53 0.0
28 23:55 N 15 14.48 Overcast OVC012 0 0 0% 76.53 0.0
28 23:35 N 15 14.48 Overcast OVC011 13 13 100% 76.53 0.0
28 23:15 Calm 12.87 Overcast OVC011 11 11 100% 76.53 0.0
28 22:55 Calm 14.48 Overcast OVC012 11 11 100% 76.53 0.0
28 22:35 Calm 14.48 Mostly Cloudy BKN012 11 11 100% 76.53 0.0
28 22:15 Calm 16.09 Mostly Cloudy BKN012 11 11 100% 76.53 0.0
28 21:55 NE 7 14.48 Partly Cloudy SCT012 11 11 100% 76.53 0.0
28 21:35 NW 6 12.87 Partly Cloudy SCT012 12 12 100% 76.53 0.0
28 21:15 NW 7 12.87 Partly Cloudy SCT011 12 12 100% 76.53 0.0
28 20:35 N 13 12.87 Mostly Cloudy BKN010 13 13 100% 76.48 0.0
28 20:15 NW 13 12.87 Partly Cloudy SCT011 13 13 100% 76.48 0.0
28 19:55 NW 13 12.87 Fair CLR 13 13 100% 76.45 0.0
28 19:35 NW 17 12.87 A Few Clouds FEW013 13 13 100% 76.43 0.0
28 19:15 N 17 G 26 12.87 A Few Clouds FEW013 14 13 94% 76.43 0.0
28 18:55 NW 20 12.87 A Few Clouds FEW013 14 13 94% 76.45 0.0
28 18:35 NW 19 12.87 A Few Clouds FEW013 14 13 94% 76.45 0.0
28 18:15 NW 24 14.48 Fair CLR 15 13 88% 76.45 0.0
28 17:55 NW 20 14.48 A Few Clouds FEW014 15 13 88% 76.48 0.0
28 17:35 NW 22 14.48 Fair CLR 15 13 88% 76.45 0.0
28 17:15 NW 20 G 30 12.87 Fair CLR 0 0 0% 76.48 0.0
28 16:55 NW 20 G 31 14.48 Partly Cloudy SCT014 15 13 88% 76.45 0.0
28 16:35 NW 26 14.48 Mostly Cloudy BKN014 15 13 88% 76.48 0.0
28 16:15 NW 24 14.48 A Few Clouds FEW014 15 13 88% 76.48 0.0
28 15:55 NW 24 14.48 A Few Clouds FEW014 15 13 88% 76.48 0.0
28 15:35 NW 24 14.48 A Few Clouds FEW014 0 0 0% 76.48 0.0
28 15:15 NW 17 14.48 A Few Clouds FEW015 15 13 88% 76.5 0.0
28 14:55 NW 17 14.48 A Few Clouds FEW016 16 13 83% 76.53 0.0
28 14:35 NW 19 14.48 Fair CLR 15 12 82% 76.53 0.0
28 14:15 NW 17 12.87 Fair CLR 16 13 83% 76.56 0.0
28 13:55 NW 17 14.48 Fair CLR 16 13 83% 76.56 0.0
28 13:35 NW 17 12.87 Fair CLR 15 12 82% 76.58 0.0
28 13:15 NW 19 14.48 Fair CLR 15 12 82% 76.56 0.0
28 12:55 NW 15 12.87 Fair CLR 16 12 77% 76.58 0.0
28 12:35 W 17 14.48 Fair CLR 15 12 82% 76.58 0.0
28 12:15 W 13 14.48 Fair CLR 15 12 82% 76.58 0.0
28 11:55 Vrbl 9 12.87 Fair CLR 15 12 82% 76.61 0.0
28 11:35 W 15 14.48 Fair CLR 15 11 77% 76.61 0.0
28 11:15 W 13 14.48 Fair CLR 15 11 77% 76.61 0.0
28 10:55 NW 11 14.48 Fair CLR 15 11 77% 76.61 0.0
28 10:35 NW 13 14.48 Fair CLR 14 11 82% 76.58 0.0
28 10:15 NW 9 14.48 A Few Clouds FEW022 14 10 77% 76.58 0.0
28 09:55 Calm 14.48 A Few Clouds FEW022 14 10 77% 76.58 0.0
28 09:35 Vrbl 7 14.48 Mostly Cloudy BKN022 14 10 77% 76.58 0.0
28 09:15 NW 11 14.48 Overcast OVC022 14 10 77% 76.58 0.0
28 08:55 N 7 14.48 Overcast OVC022 13 10 82% 76.58 0.0
28 08:35 NW 6 14.48 Overcast OVC022 13 10 82% 76.58 0.0
28 08:15 NW 11 14.48 Overcast OVC020 13 10 82% 76.56 0.0
28 07:55 NW 9 14.48 Overcast BKN020 OVC024 13 10 82% 76.53 0.0
28 07:35 NW 9 14.48 Mostly Cloudy BKN021 13 10 82% 76.53 0.0
28 07:15 NW 9 12.87 Partly Cloudy SCT022 12 10 88% 76.5 0.0
28 06:55 NW 7 14.48 Mostly Cloudy BKN023 11 10 94% 76.5 0.0
28 06:35 NW 11 12.87 Overcast OVC023 12 10 88% 76.48 0.0
28 06:15 NW 13 14.48 Overcast FEW018 OVC025 12 11 94% 76.48 0.0
28 05:55 NW 15 14.48 Overcast OVC026 12 10 88% 76.48 0.0
28 05:35 NW 11 14.48 Overcast OVC026 12 10 88% 76.48 0.0
28 05:15 NW 15 14.48 Overcast OVC024 12 10 88% 76.48 0.0
28 04:55 NW 11 14.48 Overcast OVC023 12 10 88% 76.48 0.0
28 04:35 NW 11 14.48 Overcast OVC020 12 11 94% 76.48 0.0
28 04:15 NW 13 14.48 Overcast OVC021 12 10 88% 76.45 0.0
28 03:55 NW 13 14.48 Overcast OVC021 12 10 88% 76.45 0.0
28 03:35 N 7 14.48 Overcast OVC021 12 11 94% 76.45 0.0
28 03:15 NW 6 14.48 Overcast OVC021 11 10 94% 76.45 0.0
28 02:55 NW 9 14.48 Overcast OVC021 12 10 88% 76.45 0.0
28 02:35 N 7 14.48 Overcast OVC022 0 0 0% 76.48 0.0
28 02:15 N 7 14.48 Mostly Cloudy BKN020 12 11 94% 76.48 0.0
28 01:55 NW 9 14.48 Mostly Cloudy BKN020 12 10 88% 76.48 0.0
28 01:35 N 9 14.48 Mostly Cloudy BKN020 12 10 88% 76.5 0.0
28 01:15 N 7 14.48 Mostly Cloudy BKN020 0 0 0% 76.5 0.0
28 00:55 N 11 14.48 Overcast OVC022 12 10 88% 76.5 0.0
28 00:35 NW 13 16.09 Mostly Cloudy BKN022 12 10 88% 76.53 0.0
28 00:15 NW 15 14.48 Mostly Cloudy BKN023 12 10 88% 76.5 0.0
27 23:55 NW 17 16.09 Overcast OVC023 12 10 88% 76.5 0.0
27 23:35 NW 15 14.48 Overcast OVC023 12 10 88% 76.5 0.0
27 23:15 N 9 14.48 Overcast OVC021 12 10 88% 76.5 0.0
27 22:55 NW 9 14.48 Overcast OVC021 12 10 88% 76.5 0.0
27 22:35 NW 13 14.48 Overcast OVC022 12 10 88% 76.5 0.0
27 22:15 NW 15 16.09 Overcast OVC022 12 10 88% 76.5 0.0
27 21:55 NW 9 G 20 14.48 Mostly Cloudy BKN022 12 10 88% 76.5 0.0
27 21:35 NW 17 16.09 Overcast OVC023 12 10 88% 76.48 0.0
27 21:15 N 20 16.09 Overcast OVC024 12 10 88% 76.48 0.0
27 20:55 NW 20 14.48 Mostly Cloudy BKN023 13 10 82% 76.45 0.0
27 20:35 NW 15 14.48 Partly Cloudy SCT022 12 10 88% 76.45 0.0
27 20:15 NW 17 16.09 Mostly Cloudy BKN024 12 10 88% 76.43 0.0
27 19:55 NW 19 14.48 Mostly Cloudy BKN024 12 10 88% 76.43 0.0
27 19:35 NW 19 14.48 Mostly Cloudy BKN025 13 10 82% 76.4 0.0
27 19:15 NW 17 G 26 14.48 Mostly Cloudy BKN026 13 10 82% 76.4 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)