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.
14 18:15 NW 13 4.83 Fog/Mist CLR 16 15 94% 76.43 0.0
14 17:55 NW 11 6.44 Fog/Mist CLR 17 15 88% 76.43 0.0
14 17:35 NW 9 6.44 Fair with Haze CLR 17 14 83% 76.43 0.0
14 17:15 NW 11 8.05 Fair with Haze CLR 18 14 78% 76.43 0.0
14 16:55 NW 15 6.44 Fair with Haze CLR 18 12 68% 76.43 0.0
14 16:35 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.45 0.0
14 16:15 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.45 0.0
14 15:55 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.45 0.0
14 15:35 NW 17 6.44 Fair with Haze CLR 18 15 83% 76.48 0.0
14 15:15 NW 15 4.83 Fair with Haze CLR 18 15 83% 76.48 0.0
14 14:55 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.48 0.0
14 14:35 NW 15 8.05 Fair with Haze CLR 18 14 78% 76.48 0.0
14 14:15 NW 15 6.44 Fair with Haze CLR 18 15 83% 76.5 0.0
14 13:55 NW 13 8.05 Haze NULL 18 14 78% 76.5 0.0
14 13:35 W 11 8.05 Haze NULL 18 13 73% 76.5 0.0
14 13:15 W 7 9.66 Fair with Haze CLR 18 13 73% 76.53 0.0
14 12:55 Vrbl 9 6.44 Fair with Haze CLR 18 13 73% 76.56 0.0
14 12:35 NW 9 8.05 Fair with Haze CLR 18 14 78% 76.56 0.0
14 12:15 Calm 9.66 Fair with Haze CLR 18 13 73% 76.58 0.0
14 11:55 W 7 9.66 Fair with Haze CLR 19 11 60% 76.56 0.0
14 11:35 Vrbl 7 8.05 Fair with Haze CLR 18 13 73% 76.56 0.0
14 11:15 W 7 8.05 Fair with Haze CLR 17 14 83% 76.56 0.0
14 10:55 W 9 8.05 Fair with Haze CLR 17 14 83% 76.58 0.0
14 10:35 Calm 8.05 Fair with Haze CLR 17 13 77% 76.58 0.0
14 10:15 Calm 4.83 Fair with Haze CLR 17 14 83% 76.58 0.0
14 09:55 S 6 6.44 Fog/Mist CLR 15 14 94% 76.58 0.0
14 09:35 S 6 4.83 Fog/Mist CLR 15 14 94% 76.58 0.0
14 09:15 Calm 4.83 Fog/Mist FEW004 15 14 94% 76.58 0.0
14 08:55 Calm 9.66 A Few Clouds with Haze FEW005 12 10 88% 76.58 0.0
14 08:35 Calm 9.66 Fog/Mist BKN006 10 9 94% 76.58 0.0
14 08:15 Calm 9.66 Fog/Mist BKN006 8 8 100% 76.56 0.0
14 07:55 Calm 9.66 Fog/Mist SCT005 6 6 100% 76.56 0.0
14 07:35 Calm 11.27 Partly Cloudy SCT005 6 6 100% 0 0.0
14 07:15 NE 6 12.87 Fair CLR 7 6 93% 76.53 0.0
14 06:55 Calm 12.87 Fair CLR 6 6 100% 76.53 0.0
14 06:35 NE 6 14.48 Fair CLR 6 6 100% 76.5 0.0
14 05:55 Calm 12.87 Fair CLR 6 6 100% 76.48 0.0
14 05:35 Calm 11.27 Fair CLR 6 6 100% 76.48 0.0
14 05:15 Calm 12.87 Fair CLR 6 6 100% 76.48 0.0
14 04:55 Calm 11.27 Fair CLR 7 7 100% 76.48 0.0
14 04:35 Calm 11.27 Fair CLR 7 7 100% 76.48 0.0
14 04:15 Calm 11.27 Fair CLR 6 6 100% 76.48 0.0
14 03:55 NE 7 11.27 Fair CLR 7 7 100% 6 76.48 0.0
14 03:35 Calm 11.27 Fair CLR 0 0 0% 76.48 0.0
14 03:15 Calm 11.27 Fair CLR 7 7 100% 76.5 0.0
14 02:55 Calm 11.27 Fair CLR 7 7 100% 76.5 0.0
14 02:35 Calm 11.27 Fair CLR 7 7 100% 76.5 0.0
14 02:15 Calm 12.87 Fair CLR 7 7 100% 76.5 0.0
14 01:55 Calm 11.27 Fair CLR 7 6 93% 76.5 0.0
14 01:35 NE 9 11.27 Fair CLR 8 8 100% 7 76.5 0.0
14 01:15 Calm 11.27 Fair CLR 8 8 100% 76.5 0.0
14 00:55 E 9 11.27 Fair CLR 9 8 94% 8 76.5 0.0
14 00:35 NE 6 11.27 Fair CLR 9 8 94% 76.5 0.0
14 00:15 Calm 11.27 Fair CLR 8 8 100% 76.5 0.0
13 23:55 Calm 11.27 Fair CLR 9 8 94% 76.5 0.0
13 23:35 NW 6 11.27 Fair CLR 8 7 93% 76.5 0.0
13 23:15 Calm 12.87 Fair CLR 9 7 87% 76.48 0.0
13 22:55 Calm 11.27 Fair CLR 10 7 82% 76.5 0.0
13 22:35 Calm 12.87 Fair CLR 10 7 82% 76.48 0.0
13 22:15 E 6 12.87 Fair CLR 9 8 94% 76.5 0.0
13 21:55 Calm 9.66 Fog/Mist CLR 11 9 88% 76.5 0.0
13 21:35 Calm 8.05 Fog/Mist CLR 12 10 88% 76.48 0.0
13 21:15 Calm 9.66 Fair with Haze CLR 13 10 82% 76.48 0.0
13 20:55 N 13 11.27 Fair CLR 15 10 72% 76.48 0.0
13 20:35 N 20 12.87 Fair CLR 15 9 68% 76.45 0.0
13 20:15 N 20 12.87 Fair CLR 16 8 59% 76.43 0.0
13 19:55 N 22 14.48 Fair CLR 16 6 52% 76.43 0.0
13 19:35 N 17 G 26 12.87 Fair CLR 16 8 59% 76.43 0.0
13 19:15 N 19 11.27 Fair CLR 15 9 68% 76.4 0.0
13 18:55 N 17 11.27 Fair CLR 16 10 68% 76.4 0.0
13 18:35 N 20 9.66 Fair with Haze CLR 0 0 0% 76.4 0.0
13 18:15 N 20 8.05 Fair with Haze CLR 16 10 68% 76.4 0.0
13 17:55 N 19 G 28 8.05 Fair with Haze CLR 16 11 72% 76.4 0.0
13 17:35 N 20 G 31 9.66 Fair with Haze CLR 17 11 68% 76.4 0.0
13 17:15 NW 24 8.05 Fair with Haze CLR 17 12 73% 76.4 0.0
13 16:55 NW 22 9.66 Fair with Haze CLR 18 12 68% 76.38 0.0
13 16:35 NW 20 8.05 Fair with Haze CLR 18 11 64% 76.38 0.0
13 16:15 N 20 9.66 Fair with Haze CLR 18 12 68% 76.38 0.0
13 15:55 NW 24 9.66 Fair with Haze CLR 19 12 64% 76.38 0.0
13 15:35 N 24 11.27 Fair CLR 19 12 64% 76.4 0.0
13 15:15 NW 22 11.27 Fair CLR 20 8 46% 76.4 0.0
13 14:55 N 24 9.66 Fair with Haze CLR 19 10 56% 76.4 0.0
13 14:35 NW 26 9.66 Fair with Haze CLR 19 13 68% 76.38 0.0
13 14:15 NW 26 8.05 Fair with Haze CLR 18 14 78% 76.38 0.0
13 13:55 NW 20 9.66 Haze NULL 19 10 56% 76.38 0.0
13 13:35 NW 28 0.00 NULL NULL 19 12 64% 76.4 0.0
13 13:15 NW 20 11.27 Fair CLR 20 9 49% 76.4 0.0
13 12:55 N 20 G 33 9.66 Fair with Haze CLR 19 9 52% 76.4 0.0
13 12:35 NW 26 G 37 11.27 Fair CLR 19 9 52% 76.4 0.0
13 12:15 NW 28 11.27 Fair CLR 18 9 56% 76.4 0.0
13 11:55 NW 20 11.27 Fair CLR 18 9 56% 76.43 0.0
13 11:35 NW 22 9.66 Fair with Haze CLR 18 10 60% 76.43 0.0
13 11:15 NW 19 8.05 Fair with Haze CLR 18 12 68% 76.43 0.0
13 10:55 NW 22 6.44 Fair with Haze CLR 17 13 77% 76.43 0.0
13 10:35 NW 15 8.05 Fair with Haze CLR 18 10 60% 76.4 0.0
13 10:15 NW 13 9.66 Fair with Haze CLR 18 10 60% 76.4 0.0
13 09:55 Vrbl 9 4.83 Fair with Haze CLR 17 11 68% 76.4 0.0
13 09:35 Calm 6.44 Fair with Haze CLR 15 13 88% 76.4 0.0
13 09:15 S 6 4.83 Fog/Mist CLR 14 13 94% 76.4 0.0
13 08:55 Calm 6.44 Fog/Mist CLR 13 12 94% 76.38 0.0
13 08:35 Calm 6.44 Fog/Mist CLR 11 11 100% 76.35 0.0
13 08:15 Calm 6.44 Fog/Mist CLR 9 9 100% 76.35 0.0
13 07:55 Calm 6.44 Fog/Mist CLR 7 7 100% 76.33 0.0
13 07:35 Calm 8.05 Fog/Mist CLR 7 7 100% 76.33 0.0
13 07:15 Calm 6.44 Fog/Mist CLR 7 7 100% 76.33 0.0
13 06:55 Calm 8.05 Fog/Mist CLR 7 7 100% 76.33 0.0
13 06:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.3 0.0
13 06:15 Calm 11.27 A Few Clouds FEW003 5 5 100% 76.3 0.0
13 05:55 Calm 9.66 Partly Cloudy SCT003 0 0 0% 76.28 0.0
13 05:35 Calm 9.66 Fog/Mist BKN003 6 6 100% 76.25 0.0
13 05:15 Calm 8.05 Fog/Mist NULL 6 6 100% 76.23 0.0
13 05:00 Calm 0.00 NULL NULL 0 0 0% 76.23 0.0
13 02:55 Calm 9.66 Fog/Mist CLR 6 6 100% 76.23 0.0
13 02:35 Calm 9.66 Fog/Mist NULL 6 6 100% 76.23 0.0
12 21:55 Calm 8.05 Fog/Mist CLR 10 10 100% 76.12 0.0
12 21:35 Calm 8.05 Fog/Mist FEW018 11 11 100% 76.12 0.0
12 21:15 Calm 8.05 Fog/Mist BKN017 12 11 94% 76.1 0.0
12 20:55 Calm 8.05 Fog/Mist OVC017 12 12 100% 76.1 0.0
12 20:35 Calm 8.05 Fog/Mist OVC017 12 12 100% 76.1 0.0
12 20:15 Calm 8.05 Fog/Mist BKN016 11 11 100% 76.07 0.0
12 19:55 Calm 8.05 Fog/Mist NULL 12 11 94% 76.07 0.0
12 19:40 Calm 0.00 NULL NULL 12 12 100% 76.05 0.0
12 18:35 W 7 4.02 Fog/Mist CLR 15 14 94% 76.02 0.0
12 18:15 Calm 6.44 Fog/Mist CLR 15 13 88% 76 0.0
12 17:55 W 6 6.44 Fair with Haze CLR 16 13 83% 76 0.0
12 17:35 W 9 6.44 Fair with Haze CLR 17 13 77% 76.02 0.0
12 17:15 W 7 6.44 Fair with Haze CLR 17 13 77% 76.02 0.0
12 16:55 W 7 6.44 Fair with Haze CLR 17 12 73% 76 0.0
12 16:35 Vrbl 9 8.05 Fair with Haze CLR 0 0 0% 76 0.0
12 16:15 SW 7 8.05 Fair with Haze CLR 18 12 68% 76 0.0
12 15:55 Vrbl 9 6.44 Fair with Haze CLR 18 12 68% 76 0.0
12 15:35 S 9 8.05 Fair with Haze CLR 18 12 68% 76 0.0
12 15:15 Vrbl 9 6.44 Fair with Haze CLR 18 12 68% 76 0.0
12 14:55 SW 11 8.05 Fair with Haze CLR 18 12 68% 76 0.0
12 14:35 Vrbl 11 8.05 Fair with Haze CLR 18 12 68% 76 0.0
12 14:15 Vrbl 9 8.05 Fair with Haze CLR 17 11 68% 76.02 0.0
12 13:55 Vrbl 9 8.05 Haze NULL 18 11 64% 76.02 0.0
12 13:35 SW 9 0.00 NULL NULL 18 10 60% 76.02 0.0
12 13:15 W 9 0.00 NULL NULL 17 10 64% 76.05 0.0
12 12:55 SW 7 8.05 Fair with Haze CLR 17 9 60% 76.05 0.0
12 12:35 W 13 8.05 Fair with Haze CLR 17 9 60% 76.05 0.0
12 12:15 W 11 9.66 Fair CLR 0 0 0% 76.05 0.0
12 11:55 W 11 8.05 Fair with Haze CLR 17 8 56% 76.05 0.0
12 11:35 W 13 8.05 Fair with Haze CLR 17 8 56% 76.02 0.0
12 11:15 SW 9 8.05 Fair with Haze CLR 17 8 56% 76.02 0.0
12 10:55 Vrbl 9 9.66 Fair with Haze CLR 17 8 56% 76 0.0
12 10:35 SW 9 9.66 Fair with Haze CLR 17 8 56% 76 0.0
12 10:15 S 9 8.05 Fair with Haze CLR 17 8 56% 76 0.0
12 09:55 S 9 8.05 Fair with Haze CLR 17 8 56% 75.97 0.0
12 09:35 S 11 8.05 Fair with Haze CLR 16 8 59% 75.97 0.0
12 09:15 SE 9 8.05 Fair with Haze CLR 16 9 63% 75.95 0.0
12 08:55 Calm 8.05 Fair with Haze CLR 14 10 77% 75.95 0.0
12 08:35 Calm 8.05 Haze NULL 12 9 82% 75.92 0.0
12 08:15 Calm 8.05 Fog/Mist CLR 10 9 94% 75.92 0.0
12 07:55 Calm 8.05 Fog/Mist CLR 9 8 94% 75.9 0.0
12 07:35 Calm 8.05 Fog/Mist CLR 8 8 100% 75.9 0.0
12 07:15 Calm 9.66 Fog/Mist CLR 9 8 94% 75.9 0.0
12 06:55 Calm 11.27 Fair CLR 8 7 93% 75.87 0.0
12 06:35 Calm 9.66 Fog/Mist FEW055 9 7 87% 75.84 0.0
12 06:15 Calm 9.66 Fog/Mist SCT055 9 8 94% 75.84 0.0
12 05:55 Calm 11.27 Partly Cloudy SCT060 9 8 94% 75.82 0.0
12 05:35 NE 6 9.66 Fog/Mist FEW026 FEW031 BKN060 9 8 94% 75.82 0.0
12 05:15 Calm 11.27 Partly Cloudy FEW025 SCT060 SCT070 9 7 87% 75.79 0.0
12 04:55 Calm 9.66 Fog/Mist FEW024 SCT029 BKN070 10 8 88% 75.77 0.0
12 04:35 Calm 9.66 Fog/Mist BKN024 BKN028 BKN046 10 8 88% 75.74 0.0
12 04:15 Calm 9.66 Overcast with Haze BKN024 OVC045 10 8 88% 75.74 0.0
12 03:55 Calm 11.27 Overcast BKN024 OVC046 10 8 88% 75.74 0.0
12 03:35 Calm 11.27 Overcast FEW024 OVC045 10 8 88% 75.72 0.0
12 03:15 Calm 9.66 Overcast with Haze FEW026 OVC044 10 8 88% 75.72 0.0
12 02:55 SE 9 9.66 Mostly Cloudy with Haze FEW024 FEW028 BKN047 12 8 77% 75.72 0.0
12 02:35 Calm 9.66 Fog/Mist FEW028 SCT050 10 8 88% 75.69 0.0
12 02:15 Calm 9.66 Fog/Mist FEW027 SCT055 10 8 88% 75.69 0.0
12 01:55 E 6 9.66 Fog/Mist BKN026 10 8 88% 75.69 0.0
12 01:35 Calm 9.66 Overcast with Haze OVC024 11 8 82% 75.67 0.0
12 01:15 E 7 9.66 Overcast OVC023 0 0 0% 75.67 0.0
12 00:55 SE 15 11.27 Overcast OVC022 13 8 72% 75.64 0.0
12 00:35 SE 20 9.66 Overcast with Haze OVC021 12 9 82% 75.62 0.0
12 00:15 SE 17 9.66 Overcast with Haze OVC021 12 9 82% 75.62 0.0
11 23:55 SE 17 9.66 Overcast with Haze OVC021 12 9 82% 75.62 0.0
11 23:35 SE 15 9.66 Overcast with Haze OVC020 12 9 82% 75.59 0.0
11 23:15 SE 13 9.66 Overcast with Haze OVC021 12 9 82% 75.59 0.0
11 22:55 SE 13 9.66 Overcast with Haze OVC021 11 9 88% 75.57 0.0
11 22:35 SE 9 9.66 Overcast with Haze OVC022 11 9 88% 75.57 0.0
11 22:15 SE 11 9.66 Overcast with Haze OVC022 12 9 82% 75.54 0.0
11 21:55 SE 13 8.05 Overcast with Haze OVC025 12 9 82% 75.51 0.0
11 21:35 SE 13 8.05 Overcast with Haze OVC027 13 10 82% 75.51 0.0
11 21:15 SE 13 6.44 Overcast with Haze OVC027 13 10 82% 75.49 0.0
11 20:55 S 13 6.44 Overcast with Haze OVC025 13 10 82% 75.49 0.0
11 20:35 S 9 6.44 Fog/Mist OVC024 12 10 88% 75.49 0.0
11 20:15 S 6 8.05 Overcast with Haze OVC023 12 9 82% 75.46 0.0
11 19:55 Calm 8.05 Fog/Mist OVC022 11 9 88% 75.44 0.0
11 19:35 Calm 6.44 Overcast with Haze OVC022 13 10 82% 75.44 0.0
11 19:15 W 9 8.05 Mostly Cloudy with Haze BKN022 13 10 82% 75.41 0.0
11 18:55 W 7 4.83 Partly Cloudy with Haze SCT021 13 10 82% 75.39 0.0
11 18:35 W 9 4.83 Partly Cloudy with Haze SCT022 13 10 82% 75.39 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)