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.
06 03:55 Calm 0.24 Fog OVC002 13 13 100% 76.02 0.0
06 03:35 Calm 0.24 Fog OVC002 13 13 100% 76.02 0.0
06 03:15 Calm 0.40 Fog OVC002 12 12 100% 76.02 0.0
06 02:55 NE 6 0.40 Fog OVC002 13 13 100% 76.05 0.0
06 02:35 Calm 0.40 Fog OVC002 13 13 100% 76.05 0.0
06 02:15 NE 7 0.40 Fog OVC002 13 13 100% 76.05 0.0
06 01:55 Calm 0.24 Fog OVC002 13 13 100% 76.05 0.0
06 01:35 N 6 0.40 Fog OVC002 13 13 100% 76.05 0.0
06 01:15 Calm 0.40 Fog OVC002 13 13 100% 76.05 0.0
06 00:55 Calm 0.40 Fog OVC002 13 13 100% 76.07 0.0
06 00:35 Calm 0.40 Fog OVC002 13 13 100% 76.07 0.0
06 00:15 E 7 0.40 Fog OVC002 13 13 100% 76.07 0.0
05 23:55 Calm 0.40 Fog OVC002 13 13 100% 76.07 0.0
05 23:35 Calm 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 22:55 Calm 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 22:35 NW 9 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 22:15 Calm 0.80 Fog/Mist OVC002 14 14 100% 76.07 0.0
05 21:55 Calm 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 21:35 N 9 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 21:15 NW 7 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 20:55 NW 11 0.40 Fog OVC002 14 14 100% 76.05 0.0
05 20:35 N 9 0.40 Fog OVC002 14 14 100% 76.05 0.0
05 20:15 N 9 1.21 Fog/Mist OVC002 14 14 100% 76.05 0.0
05 19:55 N 9 0.80 Fog/Mist OVC002 14 14 100% 76.02 0.0
05 19:15 N 13 0.40 Fog OVC002 14 14 100% 76 0.0
05 18:55 N 17 0.24 Fog OVC002 14 14 100% 76 0.0
05 18:15 N 13 4.02 Fog/Mist OVC003 15 15 100% 76 0.0
05 17:55 NW 13 2.01 Fog/Mist OVC003 15 15 100% 76 0.0
05 17:35 NW 19 2.82 Fog/Mist OVC003 15 15 100% 76 0.0
05 17:15 N 17 4.02 Fog/Mist OVC004 15 15 100% 76 0.0
05 16:55 NW 15 8.05 Fog/Mist OVC004 15 15 100% 76 0.0
05 15:55 NW 19 9.66 Fog/Mist OVC004 16 16 100% 76.02 0.0
05 15:35 NW 20 11.27 Mostly Cloudy BKN004 16 16 100% 76.02 0.0
05 15:15 N 19 9.66 Fog/Mist BKN005 17 16 94% 76.02 0.0
05 14:55 NW 24 14.48 Partly Cloudy SCT005 17 16 94% 76.05 0.0
05 14:35 NW 22 12.87 Partly Cloudy SCT004 17 16 94% 76.07 0.0
05 14:15 NW 20 11.27 Partly Cloudy SCT004 17 16 94% 76.1 0.0
05 13:55 NW 20 11.27 Partly Cloudy SCT004 17 16 94% 76.12 0.0
05 13:35 NW 20 8.05 Fog/Mist FEW003 17 16 94% 76.12 0.0
05 13:15 NW 19 8.05 Fog/Mist FEW004 17 16 94% 76.15 0.0
05 12:35 NW 17 9.66 Fog/Mist FEW003 17 16 94% 76.15 0.0
05 12:15 NW 19 8.05 Fog/Mist FEW003 17 16 94% 76.17 0.0
05 11:55 NW 13 14.48 Fair CLR 17 16 94% 76.17 0.0
05 11:35 NW 15 11.27 Fair CLR 17 16 94% 76.17 0.0
05 11:15 NW 15 12.87 Fair CLR 18 16 88% 76.17 0.0
05 10:55 Calm 12.87 A Few Clouds FEW003 0 0 0% 0 0.0
05 10:35 NW 9 6.44 Fog/Mist BKN003 15 15 100% 76.17 0.0
05 10:15 NW 11 4.83 Fog/Mist OVC003 15 15 100% 76.17 0.0
05 09:55 NW 9 0.80 Fog OVC002 15 15 100% 76.17 0.0
05 09:35 NW 7 0.40 Fog OVC002 0 0 0% 76.17 0.0
05 09:15 NW 11 0.24 Fog OVC002 14 14 100% 76.17 0.0
05 08:55 NW 13 0.24 Fog OVC002 14 14 100% 76.15 0.0
05 08:35 N 11 0.24 Fog OVC002 14 14 100% 76.15 0.0
05 08:15 N 9 G 19 0.24 Fog OVC002 14 14 100% 76.12 0.0
05 07:55 N 9 0.40 Fog OVC002 14 14 100% 76.12 0.0
05 07:35 N 7 0.40 Fog OVC002 14 14 100% 76.1 0.0
05 07:15 N 7 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 06:55 NW 9 0.40 Fog OVC002 14 14 100% 76.1 0.0
05 06:35 N 13 0.40 Fog OVC002 14 14 100% 76.07 0.0
05 06:15 N 9 0.24 Fog OVC002 13 13 100% 76.1 0.0
05 05:55 NE 6 3.22 Fog/Mist OVC002 13 13 100% 76.1 0.0
05 05:35 Calm 0.24 Fog OVC002 14 14 100% 76.1 0.0
05 05:15 NE 7 0.24 Fog OVC002 14 14 100% 76.1 0.0
05 04:55 Calm 0.24 Fog OVC002 13 13 100% 76.07 0.0
05 04:35 Calm 4.83 Fog/Mist BKN002 13 13 100% 76.07 0.0
05 04:15 SW 6 6.44 Fog/Mist SCT002 13 13 100% 76.07 0.0
05 03:55 Vrbl 6 2.41 Fog/Mist OVC002 14 14 100% 76.07 0.0
05 03:35 N 6 1.61 Fog/Mist OVC002 14 14 100% 76.05 0.0
05 03:15 N 11 0.40 Fog OVC002 14 14 100% 76.05 0.0
05 02:55 NW 13 11.27 A Few Clouds FEW003 0 0 0% 76.07 0.0
05 02:15 Calm 11.27 Fair CLR 12 12 100% 76.07 0.0
05 01:55 Calm 12.87 Fair CLR 12 12 100% 76.07 0.0
05 01:35 Calm 11.27 Fair CLR 12 12 100% 76.1 0.0
05 01:15 Calm 11.27 Fair CLR 12 12 100% 76.1 0.0
05 00:55 Calm 11.27 Fair CLR 12 12 100% 76.1 0.0
05 00:35 Calm 11.27 Fair CLR 13 13 100% 76.1 0.0
05 00:15 Calm 11.27 Fair CLR 13 13 100% 76.1 0.0
04 23:55 Calm 11.27 Fair CLR 13 13 100% 76.1 0.0
04 23:35 Calm 9.66 Fog/Mist CLR 13 13 100% 76.1 0.0
04 23:15 Calm 9.66 Fair CLR 0 0 0% 76.1 0.0
04 22:55 Calm 11.27 Fair CLR 13 13 100% 76.1 0.0
04 22:35 Calm 9.66 Fog/Mist FEW003 14 14 100% 76.07 0.0
04 22:15 Calm 11.27 Fair CLR 15 15 100% 76.07 0.0
04 21:55 Calm 11.27 Fair CLR 15 15 100% 76.07 0.0
04 21:35 Calm 11.27 Fair CLR 16 16 100% 76.05 0.0
04 21:15 N 7 11.27 Fair CLR 0 0 0% 76.05 0.0
04 20:55 NW 9 9.66 Fog/Mist CLR 15 15 100% 76.05 0.0
04 20:35 NW 9 9.66 Fog/Mist CLR 15 15 100% 76.02 0.0
04 20:15 W 9 9.66 Fog/Mist CLR 15 15 100% 76 0.0
04 19:55 Calm 9.66 Fog/Mist CLR 16 16 100% 75.97 0.0
04 19:35 Calm 9.66 Fog/Mist CLR 16 16 100% 75.95 0.0
04 19:15 Calm 9.66 Fog/Mist CLR 16 16 100% 75.95 0.0
04 18:55 NW 11 8.05 Fog/Mist CLR 17 17 100% 75.95 0.0
04 18:35 NW 9 8.05 Fog/Mist CLR 17 17 100% 75.92 0.0
04 18:15 NW 15 9.66 Fog/Mist CLR 18 17 94% 75.92 0.0
04 17:55 NW 17 11.27 Fair CLR 18 17 94% 75.92 0.0
04 17:35 NW 15 9.66 Fair with Haze CLR 20 17 83% 75.92 0.0
04 17:15 NW 11 11.27 Fair CLR 20 17 83% 75.92 0.0
04 16:55 NW 17 9.66 Fair with Haze CLR 20 17 83% 75.9 0.0
04 16:35 NW 17 11.27 Fair CLR 21 17 78% 75.9 0.0
04 16:15 NW 15 9.66 Fair with Haze CLR 23 17 69% 75.9 0.0
04 15:55 NW 15 9.66 Fair with Haze CLR 22 17 73% 75.9 0.0
04 15:35 NW 19 11.27 Fair CLR 0 0 0% 75.92 0.0
04 15:15 NW 15 9.66 Fair with Haze CLR 20 17 83% 75.92 0.0
04 14:55 NW 6 11.27 Fair CLR 20 17 83% 75.92 0.0
04 14:35 NW 17 9.66 Fair with Haze CLR 19 17 88% 75.95 0.0
04 14:15 NW 19 9.66 Fair with Haze CLR 19 17 88% 75.95 0.0
04 13:55 NW 13 9.66 Fair with Haze CLR 19 17 88% 75.95 0.0
04 13:35 NW 17 11.27 Fair CLR 19 17 88% 75.97 0.0
04 13:15 NW 17 9.66 Fair with Haze CLR 19 17 88% 75.97 0.0
04 12:55 NW 13 9.66 Fair with Haze CLR 19 17 88% 75.97 0.0
04 12:35 NW 9 11.27 Fair CLR 21 17 78% 75.97 0.0
04 12:15 NW 7 9.66 Fair with Haze CLR 19 17 88% 75.97 0.0
04 11:55 W 9 8.05 Fair with Haze CLR 20 17 83% 75.97 0.0
04 11:35 NW 9 8.05 Fair with Haze CLR 19 17 88% 75.97 0.0
04 11:15 NW 7 9.66 Fair with Haze CLR 20 17 83% 75.97 0.0
04 10:55 Calm 11.27 Fair CLR 23 16 65% 75.97 0.0
04 10:35 Calm 11.27 Fair CLR 22 17 73% 75.97 0.0
04 10:15 Calm 9.66 Fair with Haze CLR 21 16 73% 75.97 0.0
04 09:55 Calm 8.05 Fair with Haze CLR 20 17 83% 75.97 0.0
04 09:35 SW 6 8.05 Fair with Haze CLR 20 17 83% 75.97 0.0
04 09:15 Calm 8.05 Fog/Mist CLR 19 17 88% 75.97 0.0
04 08:55 Calm 8.05 Fog/Mist CLR 17 17 100% 75.97 0.0
04 08:35 Calm 8.05 Fair CLR 0 0 0% 75.97 0.0
04 08:15 SW 6 6.44 Fog/Mist CLR 15 15 100% 75.97 0.0
04 07:55 NE 7 6.44 Fog/Mist CLR 14 14 100% 75.95 0.0
04 07:35 N 7 6.44 Fog/Mist CLR 14 14 100% 75.92 0.0
04 07:15 NW 6 6.44 Fog/Mist CLR 13 13 100% 75.9 0.0
04 06:55 Calm 8.05 Fog/Mist CLR 13 13 100% 75.9 0.0
04 06:35 SE 13 9.66 Fog/Mist CLR 12 12 100% 75.9 0.0
04 06:15 Calm 9.66 Fog/Mist CLR 12 12 100% 75.9 0.0
04 05:55 SW 7 11.27 Fair CLR 12 12 100% 75.9 0.0
04 05:35 Calm 11.27 Fair CLR 12 12 100% 75.87 0.0
04 05:15 Calm 12.87 Fair CLR 12 12 100% 75.82 0.0
04 04:55 E 6 11.27 Fair CLR 13 13 100% 75.82 0.0
04 04:35 NE 6 12.87 Fair CLR 12 12 100% 75.82 0.0
04 04:15 Calm 14.48 Fair CLR 11 11 100% 75.82 0.0
04 03:55 Calm 12.87 Fair CLR 12 12 100% 75.82 0.0
04 03:35 Calm 12.87 Fair CLR 12 12 100% 75.84 0.0
04 03:15 NE 6 12.87 Fair CLR 12 12 100% 75.84 0.0
04 02:55 NE 6 12.87 Fair CLR 12 12 100% 75.87 0.0
04 02:35 Calm 14.48 Fair CLR 12 12 100% 75.87 0.0
04 02:15 Calm 14.48 Fair CLR 12 12 100% 75.87 0.0
04 01:55 Calm 12.87 Fair CLR 12 12 100% 75.87 0.0
04 01:35 Calm 12.87 Fair CLR 12 12 100% 75.87 0.0
04 01:15 Calm 12.87 Fair CLR 13 13 100% 75.87 0.0
04 00:55 Calm 12.87 Fair CLR 13 13 100% 75.84 0.0
04 00:35 Calm 12.87 Fair CLR 14 13 94% 75.84 0.0
04 00:15 E 6 12.87 Fair CLR 0 0 0% 75.87 0.0
03 23:55 SE 7 11.27 Fair CLR 14 14 100% 75.87 0.0
03 23:35 SE 9 11.27 Fair CLR 15 14 94% 75.87 0.0
03 23:15 Calm 11.27 Fair CLR 14 14 100% 75.87 0.0
03 22:55 SE 6 8.05 Fog/Mist FEW003 14 14 100% 75.87 0.0
03 22:35 Calm 11.27 Fair CLR 14 14 100% 75.84 0.0
03 22:15 NE 6 11.27 Fair CLR 14 14 100% 75.84 0.0
03 21:55 Calm 11.27 Fair CLR 14 14 100% 75.82 0.0
03 21:35 Calm 11.27 NULL NULL 15 14 94% 75.82 0.0
03 21:15 Calm 0.00 NULL NULL 15 15 100% 75.82 0.0
03 20:55 Calm 8.05 Fog/Mist CLR 16 16 100% 75.79 0.0
03 20:35 Calm 9.66 Fog/Mist CLR 16 16 100% 75.79 0.0
03 20:15 S 7 9.66 Fog/Mist CLR 16 16 100% 75.77 0.0
03 19:55 S 6 9.66 Fog/Mist CLR 16 16 100% 75.77 0.0
03 19:35 SE 6 9.66 Fog/Mist CLR 17 17 100% 75.74 0.0
03 19:15 Calm 9.66 Fog/Mist CLR 18 17 94% 75.74 0.0
03 18:55 Calm 8.05 Fog/Mist CLR 18 16 88% 75.72 0.0
03 18:35 Calm 8.05 Fair with Haze CLR 19 16 83% 75.72 0.0
03 18:15 SE 9 9.66 Fair with Haze CLR 22 16 69% 75.72 0.0
03 17:55 NW 6 12.87 Fair CLR 24 14 54% 25 75.72 0.0
03 17:35 N 9 11.27 Fair CLR 24 14 54% 25 75.72 0.0
03 17:15 NW 15 11.27 Fair CLR 23 15 61% 75.72 0.0
03 16:55 NW 15 9.66 Fair CLR 0 0 0% 75.74 0.0
03 16:35 NW 15 11.27 Fair CLR 23 16 65% 75.74 0.0
03 16:15 NW 17 9.66 Fair with Haze CLR 23 17 69% 75.74 0.0
03 15:55 NW 15 11.27 Fair CLR 23 17 69% 75.77 0.0
03 15:35 NW 15 11.27 Fair CLR 22 17 73% 75.79 0.0
03 15:15 NW 15 11.27 Fair CLR 22 17 73% 75.79 0.0
03 14:55 NW 15 9.66 Fair with Haze CLR 21 17 78% 75.82 0.0
03 14:35 W 11 9.66 Fair with Haze CLR 21 17 78% 75.84 0.0
03 14:15 W 11 9.66 Fair with Haze CLR 21 17 78% 75.84 0.0
03 13:55 W 9 11.27 Fair CLR 21 17 78% 75.87 0.0
03 13:35 W 9 11.27 Fair CLR 21 17 78% 75.87 0.0
03 13:15 W 9 11.27 Fair CLR 21 17 78% 75.9 0.0
03 12:55 W 7 12.87 Fair CLR 20 17 83% 75.9 0.0
03 12:35 Vrbl 6 12.87 NULL NULL 20 16 78% 75.92 0.0
03 12:15 S 6 12.87 Fair CLR 20 16 78% 75.95 0.0
03 11:55 S 9 11.27 Fair CLR 20 16 78% 75.92 0.0
03 11:35 Vrbl 9 9.66 Fair with Haze CLR 19 16 83% 75.95 0.0
03 11:15 S 11 12.87 Fair CLR 20 16 78% 75.95 0.0
03 10:55 W 11 11.27 NULL NULL 20 16 78% 75.95 0.0
03 10:35 NW 7 0.00 NULL NULL 20 17 83% 75.92 0.0
03 09:55 Calm 8.05 Fair with Haze CLR 18 16 88% 75.95 0.0
03 09:35 Calm 6.44 Fog/Mist CLR 17 16 94% 75.95 0.0
03 09:15 Calm 6.44 Fair CLR 0 0 0% 75.95 0.0
03 08:55 Calm 8.05 Fog/Mist CLR 15 15 100% 75.92 0.0
03 08:35 Calm 6.44 Fog/Mist CLR 14 14 100% 75.92 0.0
03 08:15 Calm 8.05 Fog/Mist CLR 13 13 100% 75.92 0.0
03 07:55 Calm 8.05 Fog/Mist CLR 11 11 100% 75.9 0.0
03 07:35 Calm 9.66 Fog/Mist CLR 10 10 100% 75.9 0.0
03 07:15 Calm 4.83 Fair CLR 0 0 0% 75.9 0.0
03 06:55 Calm 9.66 Fog/Mist CLR 10 10 100% 75.9 0.0
03 06:35 NW 7 9.66 Fog/Mist CLR 10 10 100% 9 75.9 0.0
03 06:15 Calm 11.27 Fair CLR 10 10 100% 75.87 0.0
03 05:55 Calm 9.66 Fog/Mist CLR 9 9 100% 75.87 0.0
03 05:35 Calm 11.27 Partly Cloudy SCT002 10 10 100% 75.9 0.0
03 05:15 Calm 12.87 Overcast OVC002 10 10 100% 75.9 0.0
03 04:55 Calm 11.27 Mostly Cloudy BKN002 11 11 100% 75.9 0.0
03 04:35 N 6 0.80 Fog BKN002 12 12 100% 75.87 0.0
03 04:15 Calm 0.24 Fog OVC002 12 12 100% 75.87 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)