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.
13 07:35 S 35 G 50 3.22 Fog/Mist and Breezy SCT019 BKN023 OVC037 16 15 94% 75.23 0.0
13 07:15 S 31 G 50 9.66 Fog/Mist FEW019 SCT028 BKN037 17 14 83% 75.26 0.0
13 06:55 S 33 11.27 Mostly Cloudy and Breezy FEW018 SCT024 BKN037 16 15 94% 75.26 0.0
13 06:35 S 33 G 50 9.66 Overcast and Breezy BKN023 BKN035 OVC055 0 0 0% 75.23 0.0
13 06:15 S 30 G 43 6.44 Fog/Mist FEW020 SCT026 OVC035 16 15 94% 75.23 0.0
13 05:55 S 20 G 31 8.05 Fog/Mist SCT021 BKN031 OVC037 16 15 94% 75.29 0.0
13 05:35 SW 19 G 39 11.27 Mostly Cloudy FEW021 SCT031 BKN044 17 14 83% 75.29 0.0
13 05:15 SW 24 G 39 11.27 Overcast SCT022 OVC045 17 15 88% 75.31 0.0
13 04:55 S 19 G 33 11.27 Overcast FEW021 SCT035 OVC046 17 15 88% 75.31 0.0
13 04:35 S 22 G 37 8.05 Fog/Mist FEW019 SCT024 OVC034 17 16 94% 75.34 0.0
13 04:15 S 22 G 35 8.05 Overcast FEW019 SCT024 OVC035 0 0 0% 75.31 0.0
13 03:55 S 28 G 43 9.66 Fog/Mist BKN022 OVC030 17 15 88% 75.34 0.0 0.03
13 03:35 S 24 G 39 6.44 Fog/Mist BKN021 BKN028 OVC036 17 16 94% 75.34 0.0
13 03:15 S 24 G 33 8.05 Fog/Mist BKN021 BKN032 BKN039 17 16 94% 75.36 0.0
13 02:55 S 19 G 30 8.05 Fog/Mist FEW021 SCT036 BKN075 17 16 94% 75.36 0.0 0.38
13 02:35 S 20 G 31 8.05 Fog/Mist SCT018 BKN037 OVC075 16 16 100% 75.36 0.0
13 02:15 Vrbl 11 G 22 4.02 Light Rain Fog/Mist FEW004 BKN015 OVC024 16 16 100% 75.39 0.0
13 01:55 SW 26 G 37 3.22 Fog/Mist FEW003 BKN013 OVC070 17 17 100% 75.39 0.0 0.03
13 01:35 S 28 G 37 9.66 Mostly Cloudy with Haze FEW027 SCT036 BKN045 18 15 83% 75.39 0.0
13 01:15 S 26 G 41 8.05 Overcast with Haze SCT023 BKN029 OVC070 18 16 88% 75.41 0.0
13 00:55 S 28 G 39 8.05 Overcast with Haze SCT023 BKN031 OVC060 18 16 88% 75.41 0.0
13 00:35 S 28 G 39 9.66 Overcast with Haze BKN024 BKN032 OVC065 18 15 83% 75.44 0.0
13 00:15 S 28 G 37 11.27 Overcast SCT026 SCT031 OVC065 18 15 83% 75.44 0.0
12 23:55 S 26 9.66 Overcast with Haze SCT028 BKN040 OVC070 18 15 83% 75.46 0.0
12 23:35 S 28 9.66 Mostly Cloudy with Haze FEW023 SCT039 BKN075 18 15 83% 75.49 0.0
12 23:15 S 26 G 37 9.66 Mostly Cloudy with Haze SCT060 BKN075 18 14 78% 75.49 0.0
12 22:55 S 33 8.05 Mostly Cloudy with Haze and Breezy BKN060 18 14 78% 75.49 0.0
12 22:35 S 31 G 44 11.27 Mostly Cloudy BKN060 18 14 78% 75.49 0.0
12 22:15 S 35 G 50 9.66 Mostly Cloudy with Haze and Breezy FEW022 BKN050 BKN060 18 14 78% 75.51 0.0
12 21:55 S 33 G 44 9.66 Fog/Mist and Breezy FEW022 SCT034 OVC049 18 16 88% 75.51 0.0
12 21:35 S 39 G 52 9.66 Overcast with Haze and Breezy FEW026 BKN032 OVC049 18 15 83% 75.51 0.0
12 21:15 S 37 G 50 9.66 Overcast with Haze and Breezy BKN026 BKN030 OVC044 18 16 88% 75.54 0.0
12 20:55 S 37 8.05 Overcast with Haze and Breezy BKN028 BKN033 OVC050 18 16 88% 75.54 0.0
12 20:35 S 31 G 43 9.66 Fog/Mist FEW022 FEW028 BKN050 18 16 88% 75.54 0.0
12 20:15 S 22 G 33 8.05 Mostly Cloudy BKN022 0 0 0% 75.54 0.0
12 19:55 S 31 8.05 Fog/Mist BKN023 18 16 88% 75.51 0.0
12 19:35 S 22 G 31 6.44 Fog/Mist BKN022 OVC026 18 16 88% 75.54 0.0
12 19:15 S 22 G 33 8.05 Fog/Mist BKN021 BKN026 BKN037 18 17 94% 75.54 0.0
12 18:55 S 28 G 41 9.66 Fog/Mist CLR 18 16 88% 75.54 0.0
12 18:35 S 26 9.66 Fog/Mist FEW060 18 16 88% 75.54 0.0
12 18:15 S 24 8.05 Fog/Mist CLR 18 16 88% 75.54 0.0
12 17:55 S 30 G 39 8.05 Fog/Mist FEW022 FEW030 18 16 88% 75.54 0.0
12 17:35 S 31 G 41 11.27 Mostly Cloudy SCT023 BKN029 BKN035 18 16 88% 75.57 0.0
12 17:15 S 31 G 43 8.05 Fog/Mist SCT023 BKN030 OVC035 18 16 88% 75.57 0.0
12 16:55 S 30 G 41 8.05 Fog/Mist SCT021 BKN026 BKN032 18 16 88% 75.57 0.0
12 16:35 S 26 G 39 8.05 A Few Clouds with Haze FEW024 FEW029 18 16 88% 75.59 0.0
12 16:15 S 26 G 39 8.05 Fair with Haze CLR 19 15 78% 75.59 0.0
12 15:55 S 30 G 48 9.66 Fair with Haze CLR 19 15 78% 75.62 0.0
12 15:35 S 33 G 44 9.66 A Few Clouds with Haze and Breezy FEW026 FEW043 19 16 83% 75.62 0.0
12 15:15 S 26 8.05 Mostly Cloudy with Haze FEW021 SCT026 BKN030 19 16 83% 75.62 0.0
12 14:55 S 28 8.05 Mostly Cloudy with Haze FEW024 SCT030 BKN038 19 15 78% 75.64 0.0
12 14:35 S 30 8.05 Partly Cloudy with Haze SCT039 19 15 78% 75.67 0.0
12 14:15 S 26 9.66 A Few Clouds with Haze FEW037 FEW047 19 14 73% 75.67 0.0
12 13:55 S 31 G 43 9.66 Mostly Cloudy with Haze SCT036 BKN045 20 14 69% 75.69 0.0
12 13:35 Calm 9.66 Overcast with Haze SCT028 OVC035 19 15 78% 75.69 0.0
12 13:15 S 22 G 39 9.66 Overcast with Haze SCT027 OVC035 19 15 78% 75.72 0.0
12 12:55 S 31 G 48 9.66 Mostly Cloudy with Haze BKN036 19 15 78% 75.74 0.0
12 12:35 S 35 G 50 9.66 A Few Clouds with Haze and Breezy FEW039 19 15 78% 75.74 0.0
12 12:15 S 35 G 50 6.44 Fair with Haze and Breezy CLR 19 16 83% 75.74 0.0
12 11:55 S 37 G 48 6.44 Fair with Haze and Breezy CLR 20 16 78% 75.74 0.0
12 11:35 S 30 G 41 8.05 Fair with Haze CLR 20 17 83% 75.77 0.0
12 11:15 S 33 G 43 6.44 Fair with Haze and Breezy CLR 20 17 83% 75.79 0.0
12 10:55 S 31 G 44 6.44 A Few Clouds with Haze FEW037 20 17 83% 75.82 0.0
12 10:35 S 17 6.44 Fair with Haze CLR 21 17 78% 75.82 0.0
12 10:15 S 22 11.27 Fair CLR 21 16 73% 75.84 0.0
12 09:55 S 22 G 33 11.27 A Few Clouds FEW032 21 16 73% 75.84 0.0
12 09:35 S 28 11.27 Fair CLR 21 16 73% 75.84 0.0
12 09:15 S 24 9.66 Fair with Haze CLR 20 16 78% 75.84 0.0
12 08:55 SE 17 8.05 Fair with Haze CLR 19 16 83% 75.87 0.0
12 08:35 SE 11 4.83 Fog/Mist CLR 18 16 88% 75.87 0.0
12 08:15 Calm 8.05 Fog/Mist CLR 17 16 94% 75.9 0.0
12 07:55 Calm 9.66 Fog/Mist CLR 15 15 100% 75.92 0.0
12 07:35 Calm 8.05 Fog/Mist CLR 14 14 100% 75.92 0.0
12 07:15 Calm 4.83 Fog/Mist CLR 13 13 100% 75.92 0.0
12 06:55 Calm 4.83 Fog/Mist CLR 14 14 100% 75.92 0.0
12 06:35 Calm 6.44 Fog/Mist CLR 14 14 100% 75.92 0.0
12 06:15 Calm 6.44 Fog/Mist FEW027 14 14 100% 75.9 0.0
12 05:55 SE 9 4.83 Fog/Mist BKN027 15 15 100% 75.9 0.0
12 05:35 SE 11 8.05 Fog/Mist OVC028 16 16 100% 75.92 0.0
12 05:15 S 15 8.05 Overcast FEW014 OVC028 0 0 0% 75.92 0.0
12 04:55 S 17 8.05 Fog/Mist SCT014 BKN024 OVC028 17 17 100% 75.92 0.0
12 04:35 S 17 9.66 Fog/Mist FEW014 OVC025 16 16 100% 75.92 0.0
12 04:15 SE 11 9.66 Fog/Mist BKN024 OVC029 16 15 94% 75.92 0.0
12 03:55 S 6 11.27 Overcast FEW019 OVC028 14 13 94% 75.92 0.0
12 03:35 Calm 11.27 Overcast OVC027 13 11 88% 75.92 0.0
12 03:15 Calm 11.27 Partly Cloudy SCT025 10 10 100% 75.95 0.0
12 02:55 Calm 12.87 Fair CLR 10 10 100% 75.97 0.0
12 02:35 Calm 11.27 Fair CLR 12 11 94% 75.97 0.0
12 02:15 Calm 12.87 Fair CLR 0 0 0% 75.97 0.0
12 01:55 Calm 14.48 Fair CLR 10 9 94% 75.97 0.0
12 01:35 Calm 14.48 Fair CLR 11 10 94% 75.97 0.0
12 01:15 NE 6 14.48 Fair CLR 10 9 94% 75.97 0.0
12 00:55 Calm 14.48 Fair CLR 10 9 94% 75.97 0.0
12 00:35 Calm 14.48 Fair CLR 11 10 94% 75.97 0.0
12 00:15 Calm 14.48 Fair CLR 11 10 94% 75.97 0.0
11 23:55 Calm 14.48 Fair CLR 11 10 94% 76 0.0
11 23:35 Calm 14.48 Fair CLR 11 10 94% 76 0.0
11 23:15 Calm 14.48 Fair CLR 11 11 100% 76 0.0
11 22:55 Calm 14.48 Fair CLR 12 11 94% 76 0.0
11 22:35 Calm 12.87 Fair CLR 12 11 94% 76.02 0.0
11 22:15 NE 9 14.48 Fair CLR 12 11 94% 76.05 0.0
11 21:55 Calm 12.87 A Few Clouds FEW038 10 10 100% 76.07 0.0
11 21:35 Calm 11.27 Fair CLR 11 11 100% 76.07 0.0
11 21:15 NE 7 12.87 A Few Clouds FEW030 11 11 100% 76.05 0.0
11 20:55 NE 7 12.87 Fair CLR 12 12 100% 76.05 0.0
11 20:35 Calm 12.87 Fair CLR 12 12 100% 76.05 0.0
11 20:15 NE 9 12.87 Fair CLR 13 12 94% 76.07 0.0
11 19:55 Calm 11.27 Fair CLR 13 12 94% 76.07 0.0
11 19:35 E 7 11.27 Fair CLR 13 13 100% 76.1 0.0
11 19:15 Calm 11.27 Fair CLR 13 12 94% 76.1 0.0
11 18:55 Calm 9.66 Fog/Mist CLR 13 13 100% 76.1 0.0
11 18:35 Calm 9.66 Fog/Mist CLR 14 13 94% 76.1 0.0
11 18:15 E 6 9.66 Fog/Mist CLR 15 14 94% 76.07 0.0
11 17:55 Calm 8.05 Fog/Mist NULL 16 15 94% 76.1 0.0
11 17:35 SE 7 6.44 Fog/Mist FEW003 16 15 94% 76.12 0.0
11 17:15 Calm 4.83 Fog/Mist FEW003 17 17 100% 76.12 0.0
11 16:55 Calm 4.83 Fog/Mist CLR 18 18 100% 76.1 0.0
11 16:35 W 6 3.22 Fog/Mist CLR 19 18 94% 76.1 0.0
11 16:15 Calm 4.83 Fair with Haze CLR 20 17 83% 76.1 0.0
11 15:55 Calm 9.66 Fair with Haze CLR 22 14 61% 76.1 0.0
11 15:35 Calm 8.05 Fair with Haze CLR 22 13 57% 76.12 0.0
11 15:15 W 6 9.66 Fair with Haze CLR 22 12 53% 76.12 0.0
11 14:55 SW 6 8.05 Fair with Haze CLR 22 13 57% 76.15 0.0
11 14:35 NW 9 8.05 Fair with Haze CLR 21 15 69% 76.17 0.0
11 14:15 NW 7 9.66 Fair with Haze CLR 22 15 65% 76.2 0.0
11 13:55 NW 9 8.05 Fair CLR 0 0 0% 76.2 0.0
11 13:35 NW 13 8.05 Fair with Haze CLR 21 16 73% 76.25 0.0
11 13:15 NW 13 8.05 Fair CLR 0 0 0% 76.28 0.0
11 12:55 NW 19 8.05 Fair with Haze CLR 20 16 78% 76.3 0.0
11 12:35 NW 17 8.05 Fair with Haze CLR 20 16 78% 76.33 0.0
11 12:15 NW 13 8.05 Fair with Haze CLR 20 15 73% 76.35 0.0
11 11:55 NW 9 6.44 Fair CLR 0 0 0% 76.38 0.0
11 11:35 W 11 6.44 Fair with Haze CLR 19 16 83% 76.4 0.0
11 11:15 NW 7 6.44 Fair with Haze CLR 19 16 83% 76.4 0.0
11 10:55 NW 9 6.44 Fair with Haze CLR 19 16 83% 76.43 0.0
11 10:35 W 9 4.83 Fair with Haze CLR 19 16 83% 76.43 0.0
11 10:15 NW 9 4.83 Fair with Haze CLR 19 16 83% 76.45 0.0
11 09:55 NW 6 6.44 Fair with Haze CLR 19 16 83% 76.43 0.0
11 09:35 NW 7 4.83 Fair with Haze CLR 18 16 88% 76.45 0.0
11 09:15 Calm 4.02 Fair with Haze CLR 18 16 88% 76.43 0.0
11 08:55 Calm 11.27 Fair CLR 0 0 0% 76.43 0.0
11 08:35 Calm 11.27 Fair CLR 16 16 100% 76.43 0.0
11 08:15 Calm 11.27 Fair CLR 14 14 100% 76.4 0.0
11 07:55 NE 6 9.66 Fog/Mist CLR 12 12 100% 76.4 0.0
11 07:35 Calm 9.66 Fog/Mist CLR 11 11 100% 76.4 0.0
11 07:15 Calm 8.05 Fog/Mist CLR 10 10 100% 76.38 0.0
11 06:55 Calm 6.44 Fog/Mist CLR 9 9 100% 76.38 0.0
11 06:35 Calm 9.66 Fog/Mist CLR 9 9 100% 76.38 0.0
11 06:15 NE 7 9.66 Fog/Mist CLR 8 8 100% 7 76.38 0.0
11 05:55 Calm 14.48 A Few Clouds FEW003 FEW034 9 9 100% 76.35 0.0
11 05:35 Calm 12.87 A Few Clouds FEW003 9 9 100% 76.35 0.0
11 05:15 Calm 11.27 Fair CLR 9 9 100% 76.33 0.0
11 04:55 Calm 12.87 A Few Clouds FEW039 9 9 100% 76.33 0.0
11 04:35 Calm 9.66 Fog/Mist BKN038 9 9 100% 76.35 0.0
11 04:15 Calm 11.27 Partly Cloudy SCT038 8 8 100% 76.35 0.0
11 03:55 Calm 11.27 Fair CLR 9 9 100% 76.35 0.0
11 03:35 Calm 11.27 Fair CLR 9 9 100% 76.38 0.0
11 03:15 Calm 11.27 Fair CLR 9 9 100% 76.4 0.0
11 02:55 Calm 8.05 Fog/Mist FEW003 FEW033 10 10 100% 76.43 0.0
11 02:35 Calm 9.66 Fog/Mist BKN003 OVC033 11 11 100% 76.45 0.0
11 02:15 N 6 4.83 Fog/Mist OVC002 11 11 100% 76.48 0.0
11 01:55 NE 7 4.83 Fog/Mist BKN002 11 11 100% 76.5 0.0
11 01:35 NE 7 6.44 Fog/Mist SCT003 11 11 100% 76.5 0.0
11 01:15 NE 6 6.44 Fog/Mist BKN003 11 11 100% 76.5 0.0
11 00:55 Calm 6.44 Fog/Mist OVC003 14 14 100% 76.5 0.0
11 00:35 Calm 4.83 Fog/Mist OVC003 14 14 100% 76.5 0.0
11 00:15 Vrbl 7 4.02 Fog/Mist OVC003 14 14 100% 76.53 0.0
10 23:55 N 6 3.22 Fog/Mist OVC003 14 14 100% 76.53 0.0
10 23:35 N 9 2.41 Fog/Mist OVC002 14 14 100% 76.53 0.0
10 23:15 N 6 8.05 Fog/Mist BKN003 12 12 100% 76.56 0.0
10 22:55 Calm 11.27 Mostly Cloudy BKN003 11 11 100% 76.56 0.0
10 22:35 NE 7 4.02 Fog/Mist OVC003 13 13 100% 76.58 0.0
10 22:15 N 11 4.83 Fog/Mist OVC003 15 15 100% 76.58 0.0
10 21:55 N 9 8.05 Fog/Mist OVC004 14 14 100% 76.58 0.0
10 21:35 N 11 6.44 Fog/Mist BKN004 15 15 100% 76.61 0.0
10 21:15 N 7 9.66 Fog/Mist FEW005 13 13 100% 76.61 0.0
10 20:55 Calm 9.66 Fog/Mist CLR 13 13 100% 76.61 0.0
10 20:35 NE 7 9.66 Fog/Mist CLR 14 14 100% 76.61 0.0
10 20:15 N 13 G 26 6.44 Fog/Mist BKN004 15 15 100% 76.58 0.0
10 19:55 N 20 6.44 Fog/Mist OVC004 15 15 100% 76.58 0.0
10 19:35 N 11 8.05 Fog/Mist OVC004 15 15 100% 76.58 0.0
10 19:15 N 17 8.05 Fog/Mist BKN004 16 16 100% 76.56 0.0
10 18:55 N 13 8.05 Fog/Mist FEW005 16 16 100% 76.56 0.0
10 18:35 N 19 G 28 8.05 Fog/Mist CLR 16 16 100% 76.56 0.0
10 18:15 NW 17 8.05 Fog/Mist CLR 16 16 100% 76.56 0.0
10 17:55 NW 19 6.44 Fog/Mist CLR 16 16 100% 76.53 0.0
10 17:35 NW 19 6.44 Fog/Mist CLR 17 17 100% 76.53 0.0
10 17:15 NW 20 4.83 Fog/Mist CLR 17 17 100% 76.5 0.0
10 16:55 NW 19 4.83 Fog/Mist CLR 17 17 100% 76.53 0.0
10 16:35 N 26 8.05 Fog/Mist CLR 18 18 100% 76.53 0.0
10 16:15 NW 28 8.05 Fog/Mist CLR 18 18 100% 76.53 0.0
10 15:55 N 24 9.66 Fog/Mist CLR 19 17 88% 76.53 0.0
10 15:35 NW 22 8.05 Fog/Mist CLR 20 18 88% 76.5 0.0
10 15:15 N 24 8.05 Fair with Haze CLR 20 18 88% 76.5 0.0
10 14:55 NW 22 G 31 9.66 Fair with Haze CLR 20 17 83% 76.5 0.0
10 14:35 NW 24 8.05 Fair with Haze CLR 20 17 83% 76.53 0.0
10 14:15 N 22 8.05 Fair with Haze CLR 20 17 83% 76.53 0.0
10 13:55 NW 26 8.05 Fair with Haze CLR 20 17 83% 76.56 0.0
10 13:35 NW 26 9.66 Fair with Haze CLR 20 17 83% 76.56 0.0
10 13:15 NW 19 9.66 Fair with Haze CLR 20 17 83% 76.58 0.0
10 12:55 NW 20 8.05 Fair with Haze CLR 20 17 83% 76.58 0.0
10 12:35 NW 19 8.05 Fair with Haze CLR 20 17 83% 76.58 0.0
10 12:15 NW 20 8.05 Fair with Haze CLR 20 17 83% 76.61 0.0
10 11:55 NW 19 8.05 Fair with Haze CLR 20 17 83% 76.63 0.0
10 11:35 NW 19 8.05 Fair with Haze CLR 20 17 83% 76.66 0.0
10 11:15 NW 19 8.05 Fog/Mist CLR 19 17 88% 76.68 0.0
10 10:55 NW 26 6.44 Fog/Mist CLR 19 17 88% 76.71 0.0
10 10:35 NW 22 6.44 Fair CLR 0 0 0% 76.71 0.0
10 10:15 NW 19 6.44 Fog/Mist CLR 19 17 88% 76.68 0.0
10 09:55 NW 17 4.83 Fair CLR 0 0 0% 76.71 0.0
10 09:35 NW 13 6.44 Fog/Mist NULL 19 18 94% 76.71 0.0
10 09:15 NW 6 4.83 Fog/Mist CLR 19 18 94% 76.71 0.0
10 08:55 NW 11 6.44 Fog/Mist CLR 18 18 100% 76.71 0.0
10 08:35 Calm 6.44 Fog/Mist CLR 17 17 100% 76.71 0.0
10 08:15 Calm 6.44 Fog/Mist CLR 16 16 100% 76.71 0.0
10 07:55 N 9 4.83 Fog/Mist CLR 16 16 100% 76.71 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)