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.
15 03:15 NW 17 16.09 Overcast OVC020 12 10 88% 76.48 0.0
15 02:55 NW 22 16.09 Overcast OVC020 12 10 88% 76.48 0.0
15 02:35 NW 22 14.48 Overcast BKN021 OVC025 12 10 88% 76.48 0.0
15 02:15 NW 15 G 26 16.09 Overcast OVC022 12 10 88% 76.5 0.0
15 01:55 NW 19 G 28 16.09 Overcast OVC021 12 10 88% 76.53 0.0
15 01:35 NW 19 16.09 Overcast OVC021 12 10 88% 76.53 0.0
15 01:15 NW 15 16.09 Overcast OVC021 12 10 88% 76.53 0.0
15 00:55 NW 17 G 28 16.09 Overcast OVC022 0 0 0% 76.53 0.0
15 00:35 NW 19 14.48 Overcast OVC021 12 10 88% 76.56 0.0
15 00:15 NW 17 16.09 Overcast OVC022 12 9 82% 76.56 0.0
14 23:55 NW 19 16.09 Overcast OVC023 0 0 0% 76.56 0.0
14 23:35 NW 19 16.09 Overcast OVC022 12 9 82% 76.56 0.0
14 23:15 NW 17 16.09 Overcast OVC022 12 9 82% 76.58 0.0
14 22:55 NW 19 16.09 Mostly Cloudy BKN024 BKN030 12 9 82% 76.58 0.0
14 22:35 NW 17 16.09 Overcast BKN024 OVC029 12 9 82% 76.61 0.0
14 22:15 N 17 16.09 Overcast OVC024 12 9 82% 76.61 0.0
14 21:55 NW 20 16.09 Overcast OVC024 12 9 82% 76.61 0.0
14 21:35 NW 17 16.09 Overcast OVC024 12 9 82% 76.61 0.0
14 21:15 NW 22 16.09 Overcast OVC025 12 9 82% 76.58 0.0
14 20:55 N 17 16.09 Overcast OVC025 12 9 82% 76.58 0.0
14 20:35 NW 20 16.09 Overcast OVC026 12 9 82% 76.58 0.0
14 20:15 NW 20 16.09 Mostly Cloudy BKN026 12 9 82% 76.58 0.0
14 19:55 NW 19 16.09 Mostly Cloudy BKN025 12 8 77% 76.58 0.0
14 19:35 NW 19 16.09 Mostly Cloudy BKN025 12 9 82% 76.61 0.0
14 19:15 NW 20 14.48 Mostly Cloudy BKN026 12 9 82% 76.61 0.0
14 18:55 NW 26 16.09 Mostly Cloudy BKN025 13 9 77% 76.61 0.0
14 18:35 NW 17 G 31 16.09 A Few Clouds FEW024 0 0 0% 76.63 0.0
14 18:15 NW 22 16.09 Partly Cloudy SCT024 SCT028 13 9 77% 76.63 0.0
14 17:55 NW 26 14.48 Mostly Cloudy BKN027 0 0 0% 76.66 0.0
14 17:35 NW 22 16.09 Mostly Cloudy BKN028 13 10 82% 76.66 0.0
14 17:15 N 22 14.48 Mostly Cloudy BKN029 14 10 77% 76.66 0.0
14 16:55 NW 24 16.09 Mostly Cloudy BKN029 14 10 77% 76.68 0.0
14 16:35 N 19 16.09 A Few Clouds FEW029 14 9 72% 76.68 0.0
14 16:15 NW 19 16.09 Partly Cloudy SCT032 14 8 67% 76.68 0.0
14 15:55 NW 26 16.09 Overcast OVC031 15 9 68% 76.71 0.0
14 15:35 NW 22 G 35 16.09 Overcast BKN026 OVC031 14 9 72% 76.71 0.0
14 15:15 NW 24 14.48 Overcast BKN024 OVC031 14 10 77% 76.73 0.0
14 14:55 NW 26 16.09 Overcast SCT025 OVC032 14 10 77% 76.73 0.0
14 14:35 NW 24 14.48 Overcast SCT023 OVC032 15 10 72% 76.76 0.0
14 14:15 NW 22 14.48 Overcast SCT021 BKN027 OVC032 14 10 77% 76.76 0.0
14 13:55 NW 22 14.48 Overcast BKN021 OVC025 14 10 77% 76.76 0.0
14 13:35 NW 24 11.27 Overcast BKN024 OVC032 14 10 77% 76.76 0.0
14 13:15 NW 19 14.48 Overcast FEW022 OVC032 14 10 77% 76.78 0.0
14 12:55 NW 19 14.48 Overcast FEW023 OVC033 14 11 82% 76.78 0.0
14 12:35 NW 19 14.48 Overcast SCT023 OVC032 14 10 77% 76.78 0.0
14 12:15 NW 15 14.48 Overcast FEW024 OVC033 14 10 77% 76.78 0.0
14 11:55 NW 17 14.48 Partly Cloudy FEW024 SCT034 15 10 72% 76.78 0.0
14 11:35 NW 15 14.48 Partly Cloudy FEW024 SCT032 15 10 72% 76.78 0.0
14 11:15 NW 13 14.48 Overcast FEW023 OVC031 13 10 82% 76.78 0.0
14 10:55 N 17 14.48 Mostly Cloudy FEW022 BKN033 15 11 77% 76.78 0.0
14 10:35 NW 15 14.48 Mostly Cloudy BKN032 14 10 77% 76.76 0.0
14 10:15 NW 17 14.48 Overcast FEW022 OVC030 0 0 0% 76.76 0.0
14 09:55 NW 15 16.09 Mostly Cloudy BKN031 14 10 77% 76.76 0.0
14 09:35 NW 17 14.48 Overcast OVC031 13 10 82% 76.73 0.0
14 09:15 NW 22 14.48 Overcast OVC031 13 10 82% 76.73 0.0
14 08:55 NW 20 14.48 Overcast OVC032 13 10 82% 76.71 0.0
14 08:35 NW 20 14.48 Overcast OVC031 13 10 82% 76.71 0.0
14 08:15 NW 22 16.09 Overcast OVC029 12 9 82% 76.71 0.0
14 07:55 NW 19 12.87 Overcast OVC025 12 10 88% 76.68 0.0
14 07:35 NW 19 12.87 Overcast BKN022 OVC026 12 10 88% 76.66 0.0
14 07:15 NW 20 12.87 Overcast OVC020 12 10 88% 76.66 0.0
14 06:55 NW 19 14.48 Overcast OVC021 12 10 88% 76.63 0.0
14 06:35 NW 17 14.48 Overcast OVC020 12 10 88% 76.63 0.0
14 06:15 NW 15 14.48 Overcast OVC020 12 10 88% 76.61 0.0
14 05:55 NW 22 14.48 Overcast OVC020 12 10 88% 76.61 0.0
14 05:35 NW 24 12.87 Overcast OVC020 12 10 88% 76.61 0.0
14 05:15 NW 19 14.48 Overcast OVC019 12 10 88% 76.61 0.0
14 04:55 N 19 G 30 14.48 Overcast OVC020 12 10 88% 76.61 0.0
14 04:35 NW 22 14.48 Overcast OVC021 12 10 88% 76.58 0.0
14 04:15 NW 20 14.48 Overcast OVC018 12 11 94% 76.58 0.0
14 03:55 NW 24 14.48 Overcast OVC018 12 11 94% 76.58 0.0
14 03:35 NW 20 12.87 Overcast OVC018 12 11 94% 76.56 0.0
14 03:15 N 17 14.48 Overcast OVC018 12 11 94% 76.56 0.0
14 02:55 NW 24 12.87 Overcast OVC019 12 11 94% 76.56 0.0
14 02:35 N 19 G 28 12.87 Overcast OVC019 0 0 0% 76.58 0.0
14 02:15 N 20 G 31 14.48 Overcast OVC019 12 11 94% 76.58 0.0
14 01:55 NW 24 12.87 Overcast OVC019 12 11 94% 76.58 0.0
14 01:35 N 20 G 31 12.87 Overcast OVC020 12 11 94% 76.58 0.0
14 01:15 N 22 12.87 Overcast OVC020 13 12 94% 76.61 0.0
14 00:55 NW 24 14.48 Overcast OVC019 13 12 94% 76.58 0.0
14 00:35 NW 20 G 30 14.48 Overcast OVC018 13 12 94% 76.58 0.0
14 00:15 NW 24 14.48 Overcast OVC018 13 12 94% 76.58 0.0
13 23:55 N 22 12.87 Overcast OVC017 13 11 88% 76.58 0.0
13 23:35 N 19 14.48 Overcast OVC018 12 11 94% 76.58 0.0
13 23:15 NW 19 G 28 12.87 Overcast OVC017 12 11 94% 76.58 0.0
13 22:55 NW 22 14.48 Overcast OVC018 12 11 94% 76.58 0.0
13 22:35 NW 26 14.48 Overcast OVC019 12 11 94% 76.58 0.0
13 22:15 NW 24 14.48 Overcast OVC018 12 11 94% 76.61 0.0
13 21:55 N 22 14.48 Overcast OVC019 12 11 94% 76.58 0.0
13 21:35 NW 22 16.09 Overcast OVC018 12 12 100% 76.58 0.0
13 21:15 N 22 16.09 Mostly Cloudy BKN017 12 11 94% 76.56 0.0
13 20:55 N 17 16.09 Mostly Cloudy BKN018 12 11 94% 76.56 0.0
13 20:35 Calm 16.09 Mostly Cloudy BKN018 0 0 0% 0 0.0
13 20:15 N 20 G 30 16.09 Mostly Cloudy BKN018 12 11 94% 76.53 0.0
13 19:55 NW 15 G 30 14.48 Mostly Cloudy BKN018 12 11 94% 76.53 0.0
13 19:35 N 20 14.48 Mostly Cloudy BKN018 13 11 88% 76.53 0.0
13 19:15 N 20 G 31 14.48 Partly Cloudy SCT018 13 11 88% 76.53 0.0
13 18:55 N 28 14.48 Mostly Cloudy BKN017 BKN022 13 11 88% 76.5 0.0
13 18:35 NW 26 11.27 Mostly Cloudy BKN017 14 11 82% 76.5 0.0
13 18:15 N 30 16.09 A Few Clouds FEW019 14 11 82% 76.5 0.0
13 17:55 N 26 G 37 16.09 A Few Clouds FEW019 14 11 82% 76.5 0.0
13 17:35 NW 28 16.09 Fair CLR 15 11 77% 76.5 0.0
13 17:15 N 26 16.09 A Few Clouds FEW021 15 10 72% 76.5 0.0
13 16:55 NW 26 16.09 Fair CLR 15 11 77% 76.5 0.0
13 16:35 NW 28 14.48 Fair CLR 15 10 72% 76.5 0.0
13 16:15 NW 26 16.09 Fair CLR 15 11 77% 76.5 0.0
13 15:55 N 24 16.09 Fair CLR 15 11 77% 76.53 0.0
13 15:35 NW 26 16.09 Fair CLR 15 11 77% 76.53 0.0
13 15:15 NW 22 14.48 Fair CLR 15 11 77% 76.53 0.0
13 14:55 NW 22 16.09 Fair CLR 15 11 77% 76.53 0.0
13 14:35 NW 20 16.09 Fair CLR 15 11 77% 76.53 0.0
13 14:15 Calm 14.48 Fair CLR 0 0 0% 76.56 0.0
13 13:55 NW 17 16.09 Fair CLR 15 12 82% 76.56 0.0
13 13:35 NW 20 16.09 Fair CLR 15 11 77% 76.56 0.0
13 13:15 NW 19 16.09 Fair CLR 15 12 82% 76.56 0.0
13 12:55 NW 19 16.09 Fair CLR 15 11 77% 76.58 0.0
13 12:35 NW 20 16.09 Fair CLR 15 11 77% 76.58 0.0
13 12:15 NW 19 16.09 Fair CLR 15 11 77% 76.58 0.0
13 11:55 NW 17 16.09 Fair CLR 15 11 77% 76.56 0.0
13 11:35 NW 19 16.09 Fair CLR 14 11 82% 76.56 0.0
13 11:15 NW 19 16.09 Fair CLR 15 11 77% 76.56 0.0
13 10:55 NW 20 16.09 Fair CLR 14 11 82% 76.56 0.0
13 10:35 N 17 16.09 Fair CLR 14 11 82% 76.53 0.0
13 10:15 NW 17 16.09 Fair CLR 14 11 82% 76.53 0.0
13 09:55 N 13 14.48 Fair CLR 14 11 82% 76.53 0.0
13 09:35 NW 13 14.48 Fair CLR 14 11 82% 76.5 0.0
13 09:15 N 9 14.48 Fair CLR 13 11 88% 76.5 0.0
13 08:55 N 11 12.87 A Few Clouds FEW018 13 12 94% 76.5 0.0
13 08:35 N 11 14.48 Fair CLR 13 12 94% 76.48 0.0
13 08:15 Calm 14.48 Light Rain CLR 12 12 100% 76.48 0.0
13 07:55 Calm 14.48 Partly Cloudy SCT060 10 10 100% 76.45 0.0
13 07:35 Calm 16.09 Partly Cloudy SCT060 9 9 100% 76.43 0.0
13 07:15 Calm 16.09 Mostly Cloudy SCT037 BKN055 9 9 100% 76.43 0.0
13 06:55 Calm 16.09 Overcast BKN034 BKN041 OVC055 9 9 100% 76.4 0.0
13 06:35 Calm 14.48 Mostly Cloudy BKN037 BKN045 BKN055 8 8 100% 76.4 0.0
13 06:15 Calm 14.48 Partly Cloudy FEW030 SCT039 SCT055 0 0 0% 76.38 0.0
13 05:55 Calm 14.48 A Few Clouds FEW021 FEW028 FEW039 8 8 100% 76.38 0.0
13 05:35 Calm 8.05 Fog/Mist FEW095 8 8 100% 76.35 0.0
13 05:15 Calm 16.09 Mostly Cloudy FEW017 FEW026 BKN100 9 9 100% 76.35 0.0
13 04:35 Calm 14.48 Overcast SCT017 BKN022 OVC110 10 10 100% 76.33 0.0
13 04:15 Calm 14.48 Mostly Cloudy SCT017 SCT025 BKN075 10 10 100% 76.35 0.0
13 03:55 Calm 14.48 Mostly Cloudy FEW016 BKN075 10 10 100% 76.33 0.0
13 03:35 Calm 16.09 Mostly Cloudy SCT017 SCT025 BKN038 11 11 100% 76.33 0.0
13 03:15 E 6 16.09 Mostly Cloudy FEW021 SCT033 BKN039 11 11 100% 76.33 0.0
13 02:55 E 6 11.27 Mostly Cloudy FEW015 SCT020 BKN026 11 11 100% 76.35 0.0
13 02:15 NE 6 14.48 Mostly Cloudy SCT019 SCT028 BKN039 11 11 100% 76.35 0.0
13 01:55 NE 6 14.48 Overcast SCT020 OVC028 11 11 100% 76.35 0.0
13 01:35 Calm 14.48 Overcast FEW017 BKN029 OVC040 11 11 100% 76.35 0.0
13 01:15 Calm 14.48 Overcast FEW016 SCT030 OVC040 11 11 100% 76.35 0.0
13 00:55 Calm 12.87 Mostly Cloudy FEW015 SCT033 BKN038 11 11 100% 76.35 0.0
13 00:35 Calm 12.87 Mostly Cloudy FEW016 SCT032 BKN040 11 11 100% 76.35 0.0
13 00:15 Calm 14.48 Overcast FEW016 BKN040 OVC100 11 11 100% 76.33 0.0
12 23:55 Calm 11.27 Overcast SCT017 BKN055 OVC100 11 11 100% 76.33 0.0
12 23:35 Calm 12.87 Overcast SCT018 BKN045 OVC060 0 0 0% 76.33 0.0
12 23:15 Calm 14.48 Mostly Cloudy FEW017 SCT046 BKN055 11 11 100% 76.33 0.0
12 22:55 Calm 11.27 Overcast FEW035 OVC050 12 12 100% 76.33 0.0 0.03
12 22:35 W 6 11.27 Overcast BKN035 SCT045 OVC055 12 12 100% 76.3 0.0
12 22:15 W 9 4.83 Light Rain Fog/Mist FEW019 BKN048 OVC060 11 11 100% 76.3 0.0
12 21:55 W 13 14.48 Overcast FEW030 BKN047 OVC060 12 12 100% 76.28 0.0 0.08
12 21:35 W 9 G 20 4.02 Fog/Mist SCT022 BKN033 OVC055 11 11 100% 76.28 0.0
12 21:15 W 13 11.27 Overcast SCT019 BKN025 OVC043 13 12 94% 76.25 0.0
12 20:55 W 7 12.87 Overcast FEW020 BKN043 OVC055 12 11 94% 76.23 0.0
12 20:35 W 11 14.48 Mostly Cloudy FEW033 SCT041 BKN055 12 11 94% 76.2 0.0
12 20:15 Calm 9.66 Fog/Mist FEW024 SCT032 BKN038 12 11 94% 76.2 0.0
12 19:55 NW 11 G 31 4.02 Light Rain Fog/Mist FEW025 SCT031 BKN036 12 11 94% 76.17 0.0
12 19:35 W 15 11.27 Overcast FEW021 FEW027 OVC070 13 11 88% 76.15 0.0
12 19:15 W 15 14.48 Mostly Cloudy BKN065 BKN075 13 10 82% 76.15 0.0
12 18:55 NW 17 14.48 Mostly Cloudy FEW023 SCT035 BKN055 14 10 77% 76.12 0.0
12 18:35 W 19 G 30 12.87 Overcast FEW024 SCT039 OVC050 14 10 77% 76.12 0.0
12 18:15 W 20 G 31 12.87 Overcast FEW026 SCT038 OVC048 14 11 82% 76.12 0.0
12 17:55 W 19 G 33 11.27 Overcast FEW029 BKN036 OVC050 14 11 82% 76.1 0.0
12 17:35 W 26 G 37 11.27 Mostly Cloudy FEW028 SCT035 BKN050 14 11 82% 76.1 0.0
12 17:15 W 17 G 33 11.27 Mostly Cloudy FEW022 SCT026 BKN085 14 12 88% 76.1 0.0
12 16:55 W 26 9.66 Mostly Cloudy with Haze SCT025 SCT032 BKN070 14 11 82% 76.07 0.0
12 16:35 W 22 G 31 12.87 Mostly Cloudy FEW035 FEW045 BKN050 15 11 77% 76.07 0.0
12 16:15 W 19 G 30 12.87 Mostly Cloudy SCT046 BKN060 15 12 82% 76.07 0.0
12 15:55 W 20 G 31 11.27 Partly Cloudy FEW022 FEW046 SCT060 15 12 82% 76.07 0.0
12 15:35 W 20 G 31 11.27 Partly Cloudy FEW023 SCT065 15 12 82% 76.07 0.0
12 15:15 W 19 11.27 Partly Cloudy SCT065 15 12 82% 76.07 0.0
12 14:55 W 17 G 26 11.27 Mostly Cloudy FEW018 SCT023 BKN065 14 13 94% 76.07 0.0 0.05
12 14:35 W 26 G 37 11.27 Partly Cloudy SCT019 SCT023 SCT037 14 12 88% 76.07 0.0
12 14:15 W 24 G 35 11.27 Mostly Cloudy SCT022 BKN060 14 12 88% 76.07 0.0
12 13:55 W 28 G 37 12.87 Partly Cloudy SCT020 SCT039 SCT060 14 12 88% 76.05 0.0 0.15
12 13:35 W 13 G 33 2.82 Light Rain Fog/Mist SCT019 SCT023 BKN039 12 12 100% 76.05 0.0
12 13:15 W 20 G 35 4.02 Light Rain Fog/Mist FEW015 SCT021 BKN039 12 12 100% 76.02 0.0
12 12:55 W 20 2.41 Light Rain Fog/Mist SCT014 BKN022 OVC055 12 12 100% 76.05 0.0 0.03
12 12:35 SW 20 G 31 11.27 Mostly Cloudy FEW024 FEW031 BKN055 13 12 94% 76.02 0.0
12 12:15 W 20 G 35 9.66 Fog/Mist FEW025 SCT033 BKN042 14 12 88% 76.02 0.0
12 11:55 Vrbl 9 G 22 11.27 Mostly Cloudy SCT026 SCT041 BKN055 13 11 88% 76.02 0.0 0.03
12 11:35 SW 22 16.09 Partly Cloudy FEW026 FEW039 SCT055 13 11 88% 76 0.0
12 11:15 SW 24 8.05 Fog/Mist FEW028 FEW042 SCT048 13 11 88% 75.97 0.0
12 10:55 SW 19 G 33 12.87 Partly Cloudy FEW031 FEW042 SCT049 14 11 82% 75.97 0.0
12 10:35 SW 20 G 31 8.05 A Few Clouds with Haze FEW070 13 10 82% 75.97 0.0
12 10:15 SW 22 G 33 14.48 A Few Clouds FEW110 13 10 82% 75.95 0.0
12 09:55 SW 22 14.48 Fair CLR 13 11 88% 75.92 0.0 0.03
12 09:35 Vrbl 11 G 28 14.48 Fair CLR 13 10 82% 75.9 0.0
12 09:15 SW 19 G 31 14.48 A Few Clouds FEW050 FEW060 FEW070 13 10 82% 75.9 0.0
12 08:55 SW 19 12.87 Mostly Cloudy FEW030 SCT050 BKN060 13 10 82% 75.9 0.0
12 08:40 SW 20 14.48 Mostly Cloudy FEW025 SCT050 BKN060 0 0 0% 75.87 0.0
12 08:15 S 15 G 24 12.87 Mostly Cloudy SCT027 SCT039 BKN060 13 10 82% 75.87 0.0
12 07:55 S 15 G 33 12.87 A Few Clouds FEW041 FEW060 12 10 88% 75.84 0.0 0.03
12 07:35 S 13 G 28 12.87 Partly Cloudy FEW025 FEW032 SCT041 12 10 88% 75.82 0.0
12 07:15 W 30 4.83 Light Rain Haze SCT031 BKN048 BKN055 12 10 88% 75.82 0.0
12 06:55 SW 11 G 24 11.27 Mostly Cloudy SCT033 SCT042 BKN060 12 10 88% 75.79 0.0
12 06:35 W 17 G 28 12.87 Partly Cloudy FEW030 SCT039 SCT055 12 9 82% 75.77 0.0
12 06:15 SW 15 14.48 Mostly Cloudy FEW030 SCT050 BKN060 12 10 88% 75.77 0.0
12 05:55 SW 15 G 26 11.27 Overcast SCT030 BKN050 OVC060 12 9 82% 75.74 0.0
12 05:35 SW 15 G 41 6.44 Overcast with Haze SCT027 BKN032 OVC050 11 9 88% 75.74 0.0
12 05:15 SW 19 14.48 Overcast SCT026 BKN038 OVC065 13 10 82% 75.74 0.0
12 04:55 SW 13 12.87 Overcast SCT030 BKN037 OVC065 13 10 82% 75.74 0.0
12 04:35 W 20 11.27 Mostly Cloudy FEW003 BKN027 BKN036 12 10 88% 75.74 0.0
12 04:15 W 17 11.27 Mostly Cloudy FEW003 BKN026 BKN033 12 10 88% 75.74 0.0
12 03:55 W 20 G 31 12.87 Mostly Cloudy BKN026 BKN032 BKN038 12 10 88% 75.72 0.0 0.03
12 03:35 W 20 G 31 12.87 Mostly Cloudy FEW003 BKN026 BKN038 0 0 0% 75.69 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)