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.
12 15:35 SW 9 12.87 Fair CLR 15 15 100% 75.97 0.0
12 15:15 Vrbl 11 14.48 Fair CLR 16 15 94% 75.97 0.0
12 14:55 S 9 14.48 A Few Clouds FEW006 16 15 94% 75.97 0.0
12 14:35 Vrbl 11 12.87 Fair CLR 16 15 94% 75.97 0.0
12 14:15 S 13 14.48 Fair CLR 16 15 94% 75.97 0.0
12 13:55 S 11 14.48 A Few Clouds FEW006 15 15 100% 76 0.0
12 13:35 Vrbl 9 14.48 A Few Clouds FEW005 15 15 100% 76 0.0
12 13:15 SW 9 11.27 A Few Clouds FEW004 0 0 0% 76.02 0.0
12 12:55 SW 9 11.27 Fair CLR 15 14 94% 76.02 0.0
12 12:35 S 9 14.48 A Few Clouds FEW005 15 14 94% 76 0.0
12 12:15 S 17 12.87 Mostly Cloudy BKN003 15 15 100% 75.97 0.0
12 11:55 S 19 6.44 Fog/Mist OVC003 15 15 100% 75.97 0.0
12 11:35 S 17 1.21 Fog/Mist OVC003 14 14 100% 75.95 0.0
12 11:15 S 19 0.40 Fog OVC003 14 14 100% 75.95 0.0
12 10:55 S 15 3.22 Fog/Mist OVC003 14 14 100% 75.92 0.0
12 10:35 S 9 1.61 Fog/Mist OVC003 13 13 100% 75.95 0.0
12 10:15 S 9 1.21 Fog/Mist OVC003 13 13 100% 75.92 0.0
12 09:55 S 7 1.61 Fog/Mist OVC003 13 13 100% 75.95 0.0
12 09:35 SW 11 0.80 Fog/Mist OVC003 13 13 100% 75.95 0.0
12 08:35 NW 7 0.24 Fog OVC002 12 12 100% 75.97 0.0
12 08:15 NW 9 0.24 Fog OVC002 12 12 100% 75.95 0.0
12 07:55 Calm 0.24 Fog OVC002 12 12 100% 75.92 0.0
12 07:35 SE 9 0.24 Fog OVC002 12 12 100% 75.9 0.0
12 07:15 S 11 0.24 Fog OVC002 12 12 100% 75.87 0.0
12 06:55 S 9 0.24 Fog OVC002 12 12 100% 75.87 0.0
12 06:35 S 15 0.24 Fog OVC002 12 12 100% 75.84 0.0
12 06:15 S 11 0.24 Fog OVC002 12 12 100% 75.82 0.0
12 05:55 SE 9 0.24 Fog OVC002 12 12 100% 75.82 0.0
12 05:35 S 11 0.40 Fog OVC002 12 12 100% 75.82 0.0
12 05:15 S 11 0.40 Fog OVC002 12 12 100% 75.82 0.0
12 04:55 S 13 0.24 Fog OVC002 12 12 100% 75.82 0.0
12 04:35 S 13 0.40 Fog OVC002 12 12 100% 75.82 0.0
12 04:15 S 13 0.40 Fog OVC002 12 12 100% 75.82 0.0
12 03:55 S 15 0.40 Fog OVC002 12 12 100% 75.82 0.0
12 03:35 S 11 0.24 Fog OVC002 12 12 100% 75.79 0.0
12 02:55 S 15 0.40 Overcast OVC002 0 0 0% 75.82 0.0
12 02:15 S 13 0.24 Fog OVC002 13 13 100% 75.82 0.0
12 01:55 S 15 0.40 Fog OVC002 13 13 100% 75.84 0.0
12 01:35 S 19 0.40 Fog OVC002 13 13 100% 75.84 0.0
12 01:15 S 19 0.40 Fog OVC002 13 13 100% 75.84 0.0
12 00:55 S 19 0.40 Fog OVC002 13 13 100% 75.87 0.0
12 00:35 S 19 0.40 Fog OVC002 13 13 100% 75.87 0.0
12 00:15 S 17 0.40 Fog OVC002 13 13 100% 75.9 0.0
11 23:55 S 15 0.40 Fog OVC002 13 13 100% 75.9 0.0
11 23:35 S 17 0.40 Fog OVC002 13 13 100% 75.9 0.0
11 23:15 S 17 0.24 Fog OVC002 13 13 100% 75.9 0.0
11 22:55 S 15 0.24 Fog OVC002 13 13 100% 75.87 0.0
11 22:35 S 19 0.24 Fog OVC002 13 13 100% 75.84 0.0
11 22:15 S 20 0.24 Fog OVC002 13 13 100% 75.84 0.0
11 21:55 S 20 0.24 Fog OVC002 13 13 100% 75.84 0.0
11 21:35 S 20 0.24 Fog OVC002 13 13 100% 75.82 0.0
11 21:15 Calm 0.24 Fog OVC002 13 13 100% 75.79 0.0
11 20:55 S 15 0.24 Fog OVC002 13 13 100% 75.79 0.0
11 20:35 S 19 0.24 Fog OVC002 13 13 100% 75.79 0.0
11 20:15 S 20 0.24 Fog OVC002 13 13 100% 75.79 0.0
11 19:35 S 22 0.24 Fog OVC002 14 14 100% 75.82 0.0
11 19:15 S 20 0.24 Overcast OVC002 0 0 0% 75.82 0.0
11 18:55 S 20 0.24 Fog NULL 14 14 100% 75.82 0.0
11 18:35 S 17 0.24 Fog NULL 14 14 100% 75.82 0.0
11 18:15 S 20 4.02 Fog/Mist SCT003 15 15 100% 75.82 0.0
11 17:55 S 19 4.02 Fog/Mist CLR 17 15 88% 75.82 0.0
11 17:35 S 19 3.22 Fog/Mist CLR 17 15 88% 75.82 0.0
11 17:15 S 17 3.22 Fair CLR 0 0 0% 75.84 0.0
11 16:55 SE 17 4.02 Fog/Mist CLR 17 15 88% 75.84 0.0
11 16:35 S 19 3.22 Fog/Mist CLR 18 15 83% 75.84 0.0
11 16:15 S 22 4.02 Fair with Haze CLR 18 16 88% 75.84 0.0
11 15:55 S 22 G 31 4.83 Fair with Haze CLR 18 16 88% 75.84 0.0
11 15:35 S 22 4.83 Fair with Haze CLR 18 15 83% 75.84 0.0
11 15:15 S 19 4.02 Fair with Haze CLR 18 15 83% 75.87 0.0
11 14:55 S 20 4.83 Fair with Haze CLR 18 15 83% 75.84 0.0
11 14:35 S 20 4.83 Fair with Haze CLR 18 14 78% 75.87 0.0
11 14:15 S 20 4.02 Fair with Haze CLR 18 14 78% 75.87 0.0
11 13:55 SE 17 4.83 Fair with Haze CLR 19 14 73% 75.87 0.0
11 13:35 SE 19 G 28 4.83 Fair with Haze CLR 19 13 68% 75.87 0.0
11 13:15 SE 19 4.83 Fair CLR 0 0 0% 75.87 0.0
11 12:55 SE 19 6.44 Fair with Haze CLR 20 13 64% 75.84 0.0
11 12:35 SE 15 4.83 Fair with Haze CLR 19 14 73% 75.84 0.0
11 12:15 S 13 4.02 Fair with Haze CLR 17 14 83% 75.84 0.0
11 11:55 SE 17 3.22 Fair with Haze CLR 18 14 78% 75.82 0.0
11 11:35 S 9 4.02 Fair with Haze CLR 20 15 73% 75.79 0.0
11 11:15 Vrbl 6 3.22 Fair with Haze CLR 20 15 73% 75.77 0.0
11 10:55 Calm 3.22 Fair with Haze CLR 19 15 78% 75.77 0.0
11 10:35 Calm 2.82 Fair with Haze CLR 19 15 78% 75.77 0.0
11 10:15 S 7 2.82 Fair with Haze CLR 18 15 83% 75.77 0.0
11 09:55 SE 9 2.82 Fair with Haze CLR 18 15 83% 75.77 0.0
11 09:35 S 6 2.82 Haze NULL 17 14 83% 75.77 0.0
11 09:15 SE 7 2.82 NULL NULL 0 0 0% 75.77 0.0
11 08:55 Calm 2.82 Fair with Haze CLR 0 0 0% 0 0.0
11 08:35 SE 6 2.41 Fog/Mist CLR 16 14 88% 75.74 0.0
11 08:15 S 7 2.01 Fog/Mist CLR 14 13 94% 75.74 0.0
11 07:55 S 9 3.22 Fog/Mist CLR 16 14 88% 75.72 0.0
11 07:35 Calm 3.22 Fog/Mist CLR 15 14 94% 75.69 0.0
11 07:15 Calm 4.02 Fog/Mist CLR 13 13 100% 75.69 0.0
11 06:55 Calm 4.83 Fog/Mist CLR 11 11 100% 75.67 0.0
11 06:35 Calm 4.02 Fog/Mist CLR 10 10 100% 75.67 0.0
11 06:15 Calm 4.83 Fog/Mist CLR 8 8 100% 75.67 0.0
11 05:55 Calm 4.83 Fog/Mist CLR 9 9 100% 75.67 0.0
11 05:35 Calm 8.05 Fog/Mist CLR 9 9 100% 75.64 0.0
11 05:15 Calm 6.44 Fog/Mist CLR 9 9 100% 75.64 0.0
11 04:55 Calm 8.05 Fog/Mist FEW003 9 9 100% 75.64 0.0
11 04:35 Calm 6.44 Fog/Mist SCT003 9 9 100% 75.64 0.0
11 04:15 Calm 8.05 Fog/Mist SCT003 9 9 100% 75.64 0.0
11 03:55 Calm 6.44 Fog/Mist BKN003 9 9 100% 75.64 0.0
11 03:35 Calm 8.05 Fog/Mist BKN003 9 9 100% 75.64 0.0
11 03:15 Calm 6.44 Fog/Mist BKN003 9 9 100% 75.67 0.0
11 02:55 Calm 6.44 Fog/Mist OVC003 9 9 100% 75.67 0.0
11 02:35 Calm 8.05 Mostly Cloudy BKN003 0 0 0% 75.69 0.0
11 02:15 Calm 8.05 Fog/Mist BKN002 9 9 100% 75.69 0.0
11 01:55 Calm 8.05 Fog/Mist SCT003 10 10 100% 75.69 0.0
11 01:35 Calm 8.05 Fog/Mist CLR 10 10 100% 75.72 0.0
11 01:15 Calm 6.44 Fog/Mist CLR 10 10 100% 75.74 0.0
11 00:55 Calm 6.44 Fog/Mist CLR 10 10 100% 75.74 0.0
11 00:35 Calm 6.44 Fog/Mist FEW003 10 10 100% 75.74 0.0
11 00:15 Calm 6.44 Fog/Mist FEW003 10 10 100% 75.77 0.0
10 23:55 Calm 6.44 Fog/Mist BKN003 10 10 100% 75.77 0.0
10 23:35 Calm 4.83 Fog/Mist SCT003 10 10 100% 75.79 0.0
10 23:15 Calm 4.83 Fog/Mist BKN003 11 11 100% 75.79 0.0
10 22:55 Calm 6.44 Fog/Mist BKN003 11 10 94% 75.79 0.0
10 22:35 Calm 4.83 Fog/Mist BKN003 11 11 100% 75.79 0.0
10 22:15 Calm 4.02 Fog/Mist SCT003 11 11 100% 75.79 0.0
10 21:55 Calm 4.02 Fog/Mist CLR 12 11 94% 75.82 0.0
10 21:35 Calm 4.02 Fog/Mist CLR 12 11 94% 75.82 0.0
10 21:15 NW 7 3.22 Fog/Mist CLR 12 11 94% 75.82 0.0
10 20:55 Calm 3.22 Fog/Mist CLR 13 11 88% 75.82 0.0
10 20:35 NW 7 2.41 Fair with Haze CLR 13 11 88% 75.82 0.0
10 20:15 NW 15 4.83 Fair with Haze CLR 14 10 77% 75.82 0.0
10 19:55 N 15 G 24 4.83 Fair CLR 0 0 0% 75.82 0.0
10 19:35 N 15 6.44 Fair with Haze CLR 16 10 68% 75.79 0.0
10 19:15 N 22 6.44 Fair with Haze CLR 16 10 68% 75.79 0.0
10 18:55 NW 22 G 35 4.83 Fair with Haze CLR 17 10 64% 75.79 0.0
10 18:35 N 31 G 41 4.83 Fair with Haze CLR 17 10 64% 75.79 0.0
10 18:15 N 35 G 46 6.44 Fair with Haze and Breezy CLR 18 10 60% 75.79 0.0
10 17:55 N 28 6.44 Fair with Haze CLR 18 10 60% 75.79 0.0
10 17:35 N 37 6.44 Fair with Haze and Breezy CLR 18 10 60% 75.82 0.0
10 17:15 NW 26 G 44 4.83 Fair with Haze CLR 17 11 68% 75.84 0.0
10 16:55 NW 26 G 35 4.02 Fair with Haze CLR 17 11 68% 75.87 0.0
10 16:35 NW 26 4.83 Fair with Haze CLR 17 11 68% 75.9 0.0
10 16:15 NW 31 4.02 Fair with Haze CLR 16 11 72% 75.92 0.0
10 15:55 NW 26 G 35 4.02 Fair with Haze CLR 16 12 77% 75.95 0.0
10 15:35 NW 30 4.83 Fair with Haze CLR 16 12 77% 75.95 0.0
10 15:15 N 26 G 37 4.83 Fair with Haze CLR 16 11 72% 75.97 0.0
10 14:55 NW 30 4.83 Fair with Haze CLR 17 12 73% 75.97 0.0
10 14:35 N 28 4.83 Fair with Haze CLR 17 12 73% 75.97 0.0
10 14:15 N 26 4.83 Fair with Haze CLR 17 11 68% 76 0.0
10 13:35 N 26 G 41 4.83 Fair with Haze CLR 17 12 73% 76.02 0.0
10 13:15 N 26 4.83 Fair with Haze CLR 17 12 73% 76.02 0.0
10 12:55 N 24 4.83 Fair with Haze CLR 17 12 73% 76.05 0.0
10 12:35 NW 22 G 33 4.83 Fair with Haze CLR 17 12 73% 76.05 0.0
10 12:15 NW 19 4.83 Fair with Haze CLR 17 12 73% 76.05 0.0
10 11:55 N 22 G 31 4.83 Fair with Haze CLR 16 12 77% 76.07 0.0
10 11:35 NW 24 4.02 Fair CLR 0 0 0% 76.07 0.0
10 11:15 NW 24 1.61 Fair with Haze CLR 16 13 83% 76.07 0.0
10 10:55 NW 20 3.22 Fair with Haze CLR 16 13 83% 76.1 0.0
10 10:35 NW 19 4.83 Fair with Haze CLR 17 13 77% 76.1 0.0
10 10:15 NW 19 4.83 Fair with Haze CLR 16 13 83% 76.1 0.0
10 09:55 NW 20 4.83 Fog/Mist CLR 15 13 88% 76.1 0.0
10 09:35 NW 19 4.83 Fair with Haze CLR 15 12 82% 76.1 0.0
10 09:15 NW 15 4.83 Fog/Mist CLR 15 13 88% 76.1 0.0
10 08:55 NW 11 4.83 Fog/Mist CLR 14 13 94% 76.1 0.0
10 08:35 NW 13 4.02 Fog/Mist CLR 13 13 100% 76.1 0.0
10 08:15 Calm 3.22 Fog/Mist CLR 13 13 100% 76.1 0.0
10 07:55 NW 6 3.22 Fog/Mist CLR 12 12 100% 76.1 0.0
10 07:35 NW 6 4.83 Fog/Mist CLR 12 12 100% 76.1 0.0
10 07:15 Calm 4.83 Fog/Mist CLR 11 11 100% 76.07 0.0
10 06:55 Calm 4.83 Fog/Mist SCT004 10 10 100% 76.1 0.0
10 06:35 Calm 4.83 Fog/Mist BKN003 8 8 100% 76.1 0.0
10 06:15 Calm 4.83 Fog/Mist CLR 8 8 100% 76.07 0.0
10 05:55 Calm 4.83 Fog/Mist FEW004 7 7 100% 76.07 0.0
10 05:35 Calm 6.44 A Few Clouds FEW004 0 0 0% 76.07 0.0
10 05:15 Calm 8.05 Fog/Mist FEW003 8 8 100% 76.07 0.0
10 04:55 Calm 8.05 Fog/Mist CLR 8 8 100% 76.05 0.0
10 04:35 Calm 6.44 Fog/Mist CLR 8 8 100% 76.07 0.0
10 04:15 Calm 6.44 Fog/Mist FEW005 8 8 100% 76.07 0.0
10 03:55 Calm 6.44 Fog/Mist CLR 8 8 100% 76.07 0.0
10 03:35 Calm 6.44 Fair CLR 0 0 0% 76.07 0.0
10 03:15 Calm 8.05 Fog/Mist CLR 8 8 100% 76.1 0.0
10 02:55 Calm 8.05 Fog/Mist FEW004 8 8 100% 76.1 0.0
10 02:35 Calm 8.05 Fog/Mist FEW004 9 9 100% 76.12 0.0
10 02:15 Calm 8.05 Fog/Mist CLR 9 9 100% 76.12 0.0
10 01:35 Calm 8.05 Fog/Mist CLR 9 9 100% 76.12 0.0
10 01:15 Calm 9.66 Fog/Mist FEW004 9 9 100% 76.12 0.0
10 00:55 Calm 9.66 Fog/Mist FEW004 9 9 100% 76.12 0.0
10 00:35 Calm 8.05 Fog/Mist CLR 10 10 100% 76.15 0.0
10 00:15 Calm 9.66 Fog/Mist CLR 10 10 100% 76.15 0.0
09 23:55 E 6 9.66 Fog/Mist CLR 10 10 100% 76.15 0.0
09 23:35 Vrbl 7 6.44 Fog/Mist CLR 11 11 100% 76.17 0.0
09 23:15 N 7 6.44 Fog/Mist CLR 12 11 94% 76.2 0.0
09 22:55 N 7 8.05 Fog/Mist CLR 12 11 94% 76.2 0.0
09 22:35 N 6 8.05 Fog/Mist CLR 12 11 94% 76.2 0.0
09 22:15 Calm 6.44 Fog/Mist CLR 12 11 94% 76.2 0.0
09 21:55 Calm 6.44 Fog/Mist CLR 12 11 94% 76.17 0.0
09 21:35 NW 6 8.05 Fog/Mist CLR 12 12 100% 76.17 0.0
09 21:15 NW 9 8.05 Fog/Mist CLR 12 12 100% 76.2 0.0
09 20:55 NW 15 4.83 Fog/Mist CLR 12 12 100% 76.2 0.0
09 20:35 NW 15 6.44 Fog/Mist CLR 12 12 100% 76.17 0.0
09 20:15 NW 19 6.44 Fog/Mist CLR 13 12 94% 76.17 0.0
09 19:55 NW 15 6.44 Fog/Mist CLR 14 12 88% 76.17 0.0
09 19:35 NW 22 6.44 Fog/Mist CLR 14 12 88% 76.17 0.0
09 19:15 Calm 8.05 Fair with Haze CLR 0 0 0% 0 0.0
09 18:55 N 20 G 31 8.05 Fair with Haze CLR 15 12 82% 76.17 0.0
09 18:35 NW 26 G 35 8.05 Fair with Haze CLR 15 12 82% 76.2 0.0
09 18:15 N 19 G 30 8.05 Fair with Haze CLR 15 13 88% 76.23 0.0
09 17:55 NW 19 8.05 Fog/Mist CLR 15 13 88% 76.23 0.0
09 17:35 NW 19 G 28 8.05 Fog/Mist CLR 15 13 88% 76.25 0.0
09 17:15 NW 24 8.05 Fog/Mist CLR 15 13 88% 76.25 0.0
09 16:55 NW 22 G 33 9.66 Fog/Mist CLR 15 13 88% 76.28 0.0
09 16:35 NW 22 9.66 Fog/Mist CLR 15 13 88% 76.28 0.0
09 16:15 NW 24 11.27 Fair CLR 15 14 94% 76.3 0.0
09 15:55 N 22 G 35 12.87 Fair CLR 15 14 94% 76.33 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)