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 (pst) 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.
12 00:15 SE 19 16.09 Overcast BKN060 OVC070 12 12 100% 76.58 0.0
11 23:55 SE 17 9.66 Fog/Mist OVC070 12 12 100% 76.58 0.0 0.03
11 23:35 SE 19 11.27 Overcast OVC065 12 12 100% 76.58 0.0
11 23:15 SE 19 11.27 Overcast OVC060 12 12 100% 76.56 0.0
11 22:55 SE 19 8.05 Fog/Mist FEW020 FEW055 OVC065 12 12 100% 76.56 0.0 0.05
11 22:35 SE 17 G 26 6.44 Unknown Precip Fog/Mist SCT014 BKN020 OVC065 12 12 100% 76.56 0.0
11 22:15 SE 22 6.44 Fog/Mist BKN013 OVC017 12 12 100% 76.53 0.0
11 21:55 SE 19 6.44 Fog/Mist BKN014 OVC019 12 12 100% 76.53 0.0
11 21:35 SE 19 9.66 Fog/Mist BKN013 OVC018 12 12 100% 76.5 0.0
11 21:15 SE 20 9.66 Fog/Mist FEW010 BKN013 OVC034 12 12 100% 76.48 0.0
11 20:55 S 17 G 30 8.05 Fog/Mist SCT010 BKN013 OVC060 12 12 100% 76.48 0.0
11 20:35 S 20 9.66 Fog/Mist BKN013 OVC018 12 12 100% 76.45 0.0
11 20:15 SE 24 11.27 Overcast BKN013 BKN033 OVC049 12 12 100% 76.43 0.0
11 19:55 S 26 G 35 11.27 Overcast SCT014 BKN049 OVC060 12 12 100% 76.43 0.0
11 19:35 S 28 G 37 11.27 Overcast FEW013 BKN017 OVC050 12 12 100% 76.4 0.0
11 19:15 S 26 12.87 Overcast FEW019 BKN034 OVC047 12 12 100% 76.38 0.0
11 18:55 S 30 12.87 Mostly Cloudy FEW032 SCT039 BKN047 12 12 100% 76.38 0.0 0.13
11 18:35 S 28 G 41 6.44 Fog/Mist BKN019 BKN030 OVC055 12 12 100% 76.35 0.0
11 18:15 S 26 G 41 4.83 Fog/Mist BKN015 OVC021 12 12 100% 76.33 0.0
11 17:55 S 22 4.83 Light Rain Fog/Mist BKN015 BKN023 OVC034 12 12 100% 76.33 0.0 0.03
11 17:35 S 24 G 37 8.05 Fog/Mist BKN016 BKN024 OVC039 12 12 100% 76.3 0.0
11 17:15 S 24 G 39 6.44 Fog/Mist BKN016 BKN022 OVC049 13 13 100% 76.3 0.0
11 16:55 S 30 9.66 Fog/Mist FEW014 SCT039 BKN060 13 13 100% 76.3 0.0
11 16:35 S 26 G 37 9.66 Fog/Mist FEW018 SCT038 BKN060 13 13 100% 76.28 0.0
11 16:15 S 31 G 41 9.66 Fog/Mist SCT017 BKN038 OVC060 13 12 94% 76.25 0.0
11 15:55 S 24 G 33 11.27 Overcast FEW017 SCT030 OVC037 13 13 100% 76.25 0.0
11 15:35 S 28 11.27 Overcast SCT018 OVC034 13 12 94% 76.23 0.0
11 15:15 S 28 9.66 Fog/Mist FEW017 FEW026 BKN032 13 12 94% 76.2 0.0
11 14:55 S 20 G 37 6.44 Fog/Mist SCT026 BKN032 OVC055 13 12 94% 76.2 0.0
11 14:35 S 22 G 33 12.87 Overcast SCT026 OVC033 14 13 94% 76.17 0.0
11 14:15 S 19 G 31 8.05 Fog/Mist FEW020 BKN025 OVC035 13 13 100% 76.17 0.0
11 13:55 S 19 G 28 9.66 Fog/Mist FEW011 BKN020 OVC030 13 13 100% 76.15 0.0 0.05
11 13:35 S 24 4.02 Rain Fog/Mist SCT013 SCT020 BKN028 13 13 100% 76.12 0.0
11 13:15 S 31 G 41 6.44 Fog/Mist FEW014 FEW026 BKN040 14 14 100% 76.12 0.0
11 12:55 S 31 6.44 Fog/Mist FEW014 SCT027 BKN037 13 13 100% 76.12 0.0
11 12:35 S 26 G 37 12.87 Mostly Cloudy SCT017 BKN023 BKN032 14 14 100% 76.12 0.0
11 12:15 S 24 11.27 Overcast BKN017 BKN023 OVC055 14 13 94% 76.1 0.0
11 11:55 S 20 11.27 Overcast BKN016 OVC024 13 13 100% 76.1 0.0 0.03
11 11:35 S 22 G 33 4.02 Fog/Mist FEW013 SCT018 BKN025 13 13 100% 76.07 0.0
11 11:15 S 22 G 31 11.27 Mostly Cloudy SCT013 SCT019 BKN026 14 14 100% 76.07 0.0
11 10:55 SW 15 G 30 11.27 Mostly Cloudy BKN013 BKN019 BKN025 13 13 100% 76.05 0.0 0.08
11 10:35 S 26 2.01 Fog/Mist BKN007 BKN013 OVC032 13 13 100% 76.02 0.0
11 10:15 S 39 G 56 12.87 Mostly Cloudy and Breezy FEW013 SCT024 BKN032 14 13 94% 75.97 0.0
11 09:55 S 33 G 44 12.87 Overcast and Breezy BKN015 BKN021 OVC060 14 13 94% 75.95 0.0
11 09:35 S 37 G 50 12.87 Overcast and Breezy OVC018 13 13 100% 75.9 0.0
11 09:15 S 30 12.87 Overcast SCT018 BKN023 OVC060 14 13 94% 75.9 0.0
11 08:55 S 26 14.48 Overcast BKN018 BKN025 OVC060 13 13 100% 75.87 0.0
11 08:35 SE 22 11.27 Mostly Cloudy SCT019 BKN024 BKN030 13 13 100% 75.84 0.0
11 08:15 SE 19 G 31 11.27 Partly Cloudy FEW017 FEW034 SCT041 13 13 100% 75.82 0.0
11 07:55 SE 28 G 37 12.87 Mostly Cloudy BKN015 BKN019 BKN032 13 13 100% 75.79 0.0
11 07:35 S 17 9.66 Fog/Mist BKN015 BKN020 OVC032 13 13 100% 75.77 0.0
11 06:35 S 19 11.27 Overcast OVC016 13 13 100% 75.67 0.0
11 06:15 S 31 11.27 Overcast BKN017 OVC029 13 13 100% 75.64 0.0
11 05:55 S 30 8.05 Fog/Mist BKN016 OVC021 13 13 100% 75.62 0.0 0.05
11 05:35 S 26 G 37 6.44 Fog/Mist BKN014 BKN019 OVC023 13 13 100% 75.62 0.0
11 05:15 S 24 G 43 3.22 Fog/Mist FEW012 BKN018 OVC030 13 13 100% 75.59 0.0
11 04:55 S 31 12.87 Overcast SCT018 SCT023 OVC029 13 13 100% 75.54 0.0
11 04:35 S 28 G 41 14.48 Overcast SCT019 BKN026 OVC031 13 13 100% 75.54 0.0
11 04:15 S 28 14.48 Overcast SCT016 BKN025 OVC034 13 13 100% 75.51 0.0
11 03:55 S 37 14.48 Overcast and Breezy BKN016 OVC023 13 13 100% 75.49 0.0
11 03:35 S 30 G 39 12.87 Overcast OVC016 13 13 100% 75.46 0.0
11 03:15 S 28 G 44 14.48 Mostly Cloudy BKN014 BKN018 BKN030 13 13 100% 75.46 0.0
11 02:55 S 37 14.48 Mostly Cloudy and Breezy SCT015 BKN020 BKN029 13 13 100% 75.44 0.0
11 02:35 S 37 12.87 Mostly Cloudy and Breezy BKN018 BKN034 13 13 100% 75.41 0.0
11 02:15 S 35 G 50 14.48 Mostly Cloudy and Breezy SCT019 BKN065 13 12 94% 75.39 0.0
11 01:55 S 33 G 44 14.48 Overcast and Breezy FEW018 FEW039 OVC065 13 13 100% 75.39 0.0
11 01:35 S 39 G 54 14.48 Mostly Cloudy and Breezy SCT015 BKN024 BKN040 13 13 100% 75.36 0.0
11 01:15 S 35 G 50 12.87 Overcast and Breezy BKN014 BKN019 OVC024 13 13 100% 75.36 0.0
11 00:55 S 41 G 52 12.87 Overcast and Breezy BKN015 BKN019 OVC025 13 13 100% 75.34 0.0 0.03
11 00:35 S 48 G 59 14.48 Overcast and Windy SCT017 BKN025 OVC075 13 13 100% 75.29 0.0
11 00:15 S 37 G 48 8.05 Fog/Mist and Breezy BKN017 BKN021 OVC026 13 13 100% 75.26 0.0
10 23:55 E 30 G 56 11.27 Overcast OVC027 13 12 94% 75.16 0.0 0.1
10 23:35 E 26 G 57 3.22 Light Rain Fog/Mist FEW021 BKN029 OVC040 13 12 94% 75.18 0.0
10 23:15 E 31 G 43 8.05 Fog/Mist FEW028 BKN037 OVC044 13 12 94% 75.18 0.0
10 22:55 E 28 G 43 11.27 Overcast FEW032 BKN044 OVC050 13 12 94% 75.18 0.0
10 22:35 E 28 G 44 12.87 Overcast FEW027 SCT039 OVC050 14 12 88% 75.21 0.0
10 22:15 E 26 G 37 11.27 Mostly Cloudy FEW027 SCT040 BKN048 14 12 88% 75.21 0.0
10 21:55 E 22 G 31 14.48 Mostly Cloudy FEW003 SCT040 BKN049 13 12 94% 75.23 0.0 0.05
10 21:35 SE 11 G 31 14.48 Overcast FEW033 BKN045 OVC055 13 12 94% 75.29 0.0
10 21:15 E 20 G 35 11.27 Unknown Precip FEW034 BKN044 OVC055 13 12 94% 75.31 0.0
10 20:55 E 22 G 33 6.44 Light Rain Fog/Mist FEW029 BKN040 OVC055 13 12 94% 75.29 0.0 0.05
10 20:35 E 19 12.87 Light Rain SCT038 BKN044 OVC070 13 12 94% 75.31 0.0
10 20:15 E 13 G 26 16.09 Overcast BKN043 BKN050 OVC085 13 12 94% 75.34 0.0
10 19:55 E 17 16.09 Overcast FEW037 BKN043 OVC090 13 12 94% 75.34 0.0
10 19:35 SE 15 G 37 9.66 Fog/Mist SCT027 BKN033 OVC060 13 12 94% 75.34 0.0
10 19:15 SE 11 G 30 8.05 Fog/Mist BKN026 BKN034 OVC060 13 12 94% 75.36 0.0
10 18:55 E 17 G 26 14.48 Overcast BKN036 BKN060 OVC065 12 12 100% 75.36 0.0 0.03
10 18:35 Calm 14.48 Light Rain BKN038 OVC050 12 11 94% 75.36 0.0
10 18:15 E 24 14.48 Light Rain FEW037 SCT044 BKN049 13 11 88% 75.36 0.0
10 17:55 SE 15 G 30 14.48 Mostly Cloudy FEW037 BKN050 BKN065 13 11 88% 75.36 0.0 0.03
10 17:35 SE 13 G 24 16.09 Mostly Cloudy SCT035 BKN042 BKN055 13 12 94% 75.39 0.0
10 17:15 SE 13 14.48 Unknown Precip SCT032 BKN038 BKN044 13 12 94% 75.39 0.0
10 16:55 NE 7 3.22 Unknown Precip Fog/Mist FEW032 SCT040 BKN050 13 12 94% 75.39 0.0 0.05
10 16:35 SE 15 G 31 6.44 Light Rain Fog/Mist BKN042 BKN050 13 12 94% 75.39 0.0
10 16:15 Calm 16.09 Overcast OVC044 13 12 94% 75.39 0.0
10 15:55 E 9 16.09 Mostly Cloudy FEW037 BKN046 13 12 94% 75.39 0.0 0.05
10 15:35 E 6 4.02 Light Rain Fog/Mist FEW038 SCT044 BKN055 13 13 100% 75.44 0.0
10 15:15 SE 9 12.87 Light Rain FEW041 SCT046 BKN055 14 13 94% 75.44 0.0
10 14:55 Calm 6.44 Unknown Precip Fog/Mist FEW043 FEW049 FEW060 13 13 100% 75.46 0.0 0.05
10 14:35 Calm 9.66 Fog/Mist FEW042 FEW048 SCT060 13 13 100% 75.46 0.0
10 14:15 SE 9 G 24 4.83 Fog/Mist FEW029 SCT040 BKN047 13 13 100% 75.49 0.0
10 13:55 SE 19 3.22 Light Rain Fog/Mist FEW033 SCT044 SCT050 13 13 100% 75.51 0.0 0.15
10 13:35 S 24 2.82 Fog/Mist SCT027 SCT033 BKN060 13 13 100% 75.54 0.0
10 13:15 S 22 9.66 Fog/Mist FEW060 SCT070 14 13 94% 75.57 0.0
10 12:55 S 22 12.87 Mostly Cloudy FEW031 SCT055 BKN070 14 13 94% 75.62 0.0
10 12:35 S 26 G 39 11.27 Overcast FEW022 BKN030 OVC070 14 13 94% 75.62 0.0
10 12:15 S 22 9.66 Fog/Mist NULL 15 13 88% 75.67 0.0
10 11:55 S 19 11.27 NULL NULL 15 14 94% 75.69 0.0
10 11:35 S 26 12.87 NULL NULL 15 13 88% 75.69 0.0
10 11:15 S 24 G 39 12.87 Mostly Cloudy FEW038 FEW044 BKN050 15 13 88% 75.69 0.0
10 10:55 S 19 11.27 Mostly Cloudy FEW029 SCT036 BKN044 15 13 88% 75.67 0.0
10 10:35 S 11 14.48 Mostly Cloudy FEW031 SCT040 BKN048 15 12 82% 75.62 0.0
10 10:15 S 17 11.27 Partly Cloudy FEW033 SCT038 SCT046 15 12 82% 75.64 0.0
10 09:55 S 11 16.09 Mostly Cloudy BKN030 15 12 82% 75.64 0.0
10 09:35 S 19 16.09 Overcast OVC028 15 12 82% 75.62 0.0
10 09:15 SE 22 G 33 16.09 Overcast OVC029 15 11 77% 75.62 0.0
10 08:55 SE 20 16.09 Mostly Cloudy BKN030 15 9 68% 75.62 0.0
10 08:35 SE 20 16.09 A Few Clouds FEW029 15 7 59% 75.64 0.0
10 08:15 SE 11 16.09 A Few Clouds FEW120 14 6 59% 75.64 0.0
10 07:55 Calm 16.09 Fair CLR 13 5 59% 75.64 0.0
10 07:35 Calm 16.09 Fair CLR 11 5 67% 75.62 0.0
10 07:15 Calm 16.09 Fair CLR 12 5 63% 75.62 0.0
10 06:55 Calm 16.09 A Few Clouds FEW048 12 5 63% 75.62 0.0
10 06:35 Calm 16.09 Partly Cloudy FEW044 FEW050 SCT090 12 4 58% 75.62 0.0
10 06:15 Calm 16.09 Partly Cloudy SCT090 SCT110 10 5 71% 75.64 0.0
10 05:55 Calm 16.09 Fair CLR 12 3 54% 75.64 0.0
10 05:35 Calm 16.09 Fair CLR 10 3 62% 75.64 0.0
10 05:15 Vrbl 7 16.09 Fair CLR 12 3 54% 75.64 0.0
10 04:55 NE 13 16.09 Fair CLR 11 2 54% 75.64 0.0
10 04:35 E 7 G 19 16.09 Fair CLR 12 3 54% 75.64 0.0
10 04:15 NE 15 16.09 Fair CLR 13 1 44% 75.67 0.0
10 03:55 Calm 16.09 Fair CLR 11 3 58% 75.67 0.0
10 03:35 E 11 16.09 Fair CLR 14 1 41% 75.69 0.0
10 03:15 NE 11 16.09 Fair CLR 12 2 51% 75.69 0.0
10 02:55 Calm 16.09 Fair CLR 10 4 67% 75.72 0.0
10 02:35 Calm 16.09 Fair CLR 11 2 54% 75.77 0.0
10 02:15 Calm 16.09 Fair CLR 12 2 51% 75.79 0.0
10 01:55 Vrbl 6 12.87 Fair CLR 13 2 47% 75.82 0.0
10 01:35 Calm 14.48 Fair CLR 9 6 82% 75.82 0.0
10 01:15 Calm 12.87 A Few Clouds FEW003 8 5 82% 75.84 0.0
10 00:55 Calm 14.48 Partly Cloudy SCT003 7 5 87% 75.87 0.0
10 00:35 NE 7 16.09 Fair CLR 8 4 76% 7 75.87 0.0
10 00:15 Calm 16.09 Fair CLR 7 5 87% 75.9 0.0
09 23:55 W 7 16.09 A Few Clouds FEW003 6 5 93% 5 75.87 0.0
09 23:35 Calm 16.09 Partly Cloudy SCT003 7 6 93% 75.92 0.0
09 23:15 Calm 16.09 Fair CLR 7 6 93% 75.95 0.0
09 22:55 Calm 14.48 Fair CLR 8 7 93% 75.95 0.0
09 22:35 Calm 11.27 Fair CLR 9 8 94% 75.95 0.0
09 22:15 Calm 9.66 Fog/Mist FEW003 10 9 94% 75.97 0.0
09 21:55 Calm 8.05 Fog/Mist SCT003 10 9 94% 75.97 0.0
09 21:35 Calm 8.05 Fog/Mist FEW003 11 10 94% 75.97 0.0
09 21:15 N 15 6.44 Fog/Mist CLR 12 11 94% 76 0.0
09 20:55 NW 17 9.66 Fog/Mist CLR 10 9 94% 8 76 0.0
09 20:35 NE 6 16.09 Fair CLR 11 8 82% 76.02 0.0
09 20:15 NW 7 16.09 Fair CLR 10 8 88% 9 76.05 0.0
09 19:55 Calm 16.09 Fair CLR 12 7 72% 76.05 0.0
09 19:35 Calm 16.09 Fair CLR 11 7 77% 76.07 0.0
09 19:15 SE 9 16.09 Fair CLR 12 7 72% 76.1 0.0
09 18:55 N 11 16.09 Fair CLR 14 6 59% 76.05 0.0
09 18:35 N 13 14.48 Fair CLR 13 8 72% 76.07 0.0
09 18:15 NW 13 8.05 Fair with Haze CLR 13 10 82% 76.15 0.0
09 17:55 W 9 8.05 Fair with Haze CLR 13 10 82% 76.17 0.0
09 17:35 NW 9 12.87 Fair CLR 13 8 72% 76.2 0.0
09 17:15 NW 11 9.66 Fair with Haze CLR 13 9 77% 76.23 0.0
09 16:55 N 13 9.66 Fair with Haze CLR 14 10 77% 76.25 0.0
09 16:35 NW 15 6.44 Fair with Haze CLR 14 11 82% 76.28 0.0
09 16:15 NW 13 12.87 Fair CLR 14 11 82% 76.28 0.0
09 15:55 N 15 14.48 Fair CLR 14 11 82% 76.28 0.0
09 15:35 NW 13 16.09 Fair CLR 15 11 77% 76.33 0.0
09 15:15 N 17 14.48 Fair CLR 15 10 72% 76.33 0.0
09 14:55 N 15 16.09 Fair CLR 15 10 72% 76.3 0.0
09 14:35 N 13 16.09 Fair CLR 16 8 59% 76.33 0.0
09 14:15 N 13 G 24 16.09 Fair CLR 16 7 55% 76.35 0.0
09 13:55 N 15 16.09 Fair CLR 15 9 68% 76.33 0.0
09 13:35 N 19 14.48 Fair CLR 16 9 63% 76.38 0.0
09 13:15 N 15 16.09 Fair CLR 17 6 49% 76.4 0.0
09 12:55 NW 15 16.09 Fair CLR 17 6 49% 76.45 0.0
09 12:35 N 13 16.09 Fair CLR 16 9 63% 76.5 0.0
09 12:15 N 11 16.09 Fair CLR 16 9 63% 76.56 0.0
09 11:55 N 13 16.09 Fair CLR 16 9 63% 76.61 0.0
09 11:35 Calm 16.09 Fair CLR 16 7 55% 76.63 0.0
09 11:15 Vrbl 9 G 22 16.09 Fair CLR 16 7 55% 76.61 0.0
09 10:55 N 17 16.09 Fair CLR 16 7 55% 76.61 0.0
09 10:35 NE 17 G 31 16.09 Fair CLR 15 8 63% 76.61 0.0
09 10:15 N 11 16.09 Fair CLR 14 9 72% 76.63 0.0
09 09:55 NE 13 16.09 Fair CLR 14 10 77% 76.66 0.0
09 09:35 Vrbl 6 16.09 Fair CLR 13 10 82% 76.68 0.0
09 09:15 Vrbl 9 16.09 Fair CLR 13 10 82% 76.71 0.0
09 08:55 Vrbl 9 G 19 16.09 Fair CLR 13 9 77% 76.73 0.0
09 08:35 Vrbl 6 16.09 Fair CLR 13 10 82% 76.76 0.0
09 08:15 N 11 9.66 Fog/Mist CLR 12 10 88% 76.76 0.0
09 07:55 NW 11 14.48 Fair CLR 12 10 88% 76.76 0.0
09 07:35 NW 19 14.48 Fair CLR 12 10 88% 76.76 0.0
09 07:15 NW 22 12.87 Fair CLR 11 10 94% 76.78 0.0
09 06:55 NW 17 12.87 Fair CLR 11 10 94% 76.78 0.0
09 06:35 NW 17 14.48 Fair CLR 11 10 94% 76.78 0.0
09 06:15 NW 19 16.09 Fair CLR 11 10 94% 76.78 0.0
09 05:55 N 15 G 24 14.48 Fair CLR 12 10 88% 76.78 0.0
09 05:35 N 17 11.27 Fair CLR 11 10 94% 76.81 0.0
09 05:15 N 20 16.09 Fair CLR 12 10 88% 76.81 0.0
09 04:55 N 15 16.09 Fair CLR 10 10 100% 8 76.81 0.0
09 04:35 N 15 14.48 Fair CLR 11 10 94% 76.86 0.0
09 04:15 N 13 14.48 Fair CLR 11 10 94% 76.84 0.0
09 03:55 N 15 16.09 Fair CLR 12 11 94% 76.84 0.0
09 03:35 N 17 14.48 Fair CLR 12 12 100% 76.86 0.0
09 03:15 N 19 16.09 Fair CLR 12 11 94% 76.86 0.0
09 02:55 N 17 G 26 14.48 Fair CLR 12 12 100% 76.89 0.0
09 02:35 N 17 G 30 14.48 Fair CLR 12 12 100% 76.89 0.0
09 02:15 N 22 G 33 12.87 Fair CLR 12 12 100% 76.89 0.0
09 01:55 N 22 14.48 Fair CLR 13 13 100% 76.91 0.0
09 01:15 N 31 14.48 Mostly Cloudy BKN013 13 13 100% 76.91 0.0
09 00:55 N 28 14.48 Mostly Cloudy BKN014 13 13 100% 76.91 0.0
Date Time (pst) 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)