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.
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
03 03:55 Calm 0.24 Fog OVC002 12 12 100% 75.9 0.0
03 03:35 Calm 0.24 Fog OVC002 12 12 100% 75.9 0.0
03 03:15 Calm 0.24 Fog OVC002 13 13 100% 75.9 0.0
03 02:55 Calm 0.24 Fog OVC002 13 13 100% 75.9 0.0
03 02:35 Calm 0.24 Fog OVC002 13 13 100% 75.9 0.0
03 02:15 Calm 0.24 Overcast OVC002 0 0 0% 75.9 0.0
03 01:55 SE 9 0.24 Fog OVC002 14 14 100% 75.9 0.0
03 01:35 S 7 0.24 Fog OVC002 14 14 100% 75.9 0.0
03 01:15 SE 6 0.80 Fog OVC002 12 12 100% 75.87 0.0
03 00:55 Calm 8.05 Fog/Mist BKN003 12 12 100% 75.9 0.0
03 00:35 Calm 8.05 Fog/Mist BKN003 13 13 100% 75.9 0.0
03 00:15 NW 9 8.05 Fog/Mist SCT003 13 13 100% 75.87 0.0
02 23:55 N 7 11.27 Partly Cloudy SCT004 11 11 100% 75.9 0.0
02 23:35 Calm 3.22 Fog/Mist CLR 12 12 100% 75.9 0.0
02 23:15 Calm 11.27 A Few Clouds FEW003 11 11 100% 75.9 0.0
02 22:55 Calm 9.66 Fog/Mist CLR 12 12 100% 75.92 0.0
02 22:35 Calm 11.27 Fair CLR 12 12 100% 75.9 0.0
02 22:15 Calm 11.27 A Few Clouds FEW002 FEW021 12 12 100% 75.92 0.0
02 21:55 Calm 0.40 Mostly Cloudy BKN002 0 0 0% 75.92 0.0
02 21:35 NW 7 9.66 Fog/Mist CLR 12 12 100% 75.95 0.0
02 20:55 Calm 12.87 Fair CLR 13 13 100% 75.95 0.0
02 20:35 NW 6 12.87 Fair CLR 14 14 100% 75.92 0.0
02 20:15 N 7 11.27 Fair CLR 0 0 0% 75.92 0.0
02 19:55 Calm 9.66 Fog/Mist FEW024 14 14 100% 75.95 0.0
02 19:35 W 7 14.48 A Few Clouds FEW023 14 14 100% 75.9 0.0
02 19:15 NW 9 14.48 Fair CLR 14 14 100% 75.9 0.0
02 18:55 Calm 12.87 Fair CLR 14 14 100% 75.87 0.0
02 18:35 NW 15 11.27 Fair CLR 15 15 100% 75.87 0.0
02 18:15 NW 13 9.66 Fog/Mist CLR 15 15 100% 75.87 0.0
02 17:55 NW 11 9.66 Fog/Mist FEW002 16 15 94% 75.9 0.0
02 17:35 NW 13 1.61 Fog/Mist BKN002 15 15 100% 75.9 0.0
02 17:15 NW 11 1.61 Fog/Mist BKN002 15 15 100% 75.92 0.0
02 16:55 NW 9 3.22 Fog/Mist FEW003 15 15 100% 75.92 0.0
02 16:35 NW 9 4.83 Fog/Mist SCT003 15 15 100% 75.92 0.0
02 16:15 NW 9 2.41 Fog/Mist BKN003 16 16 100% 75.97 0.0
02 15:55 NW 15 2.41 Fog/Mist BKN003 16 16 100% 75.95 0.0
02 15:35 NW 13 9.66 Fog/Mist CLR 17 16 94% 75.95 0.0
02 15:15 NW 13 9.66 Fog/Mist FEW003 18 16 88% 75.95 0.0
02 14:55 NW 13 1.21 Mostly Cloudy BKN003 0 0 0% 75.95 0.0
02 14:35 NW 17 9.66 Fog/Mist FEW003 17 16 94% 75.95 0.0
02 14:15 N 11 3.22 Fog/Mist BKN003 16 16 100% 75.97 0.0
02 13:55 NW 17 1.61 Fog/Mist OVC003 16 16 100% 76.02 0.0
02 13:35 NW 11 0.80 Fog BKN003 15 15 100% 76.02 0.0
02 13:15 NW 11 4.83 Fog/Mist CLR 17 16 94% 76 0.0
02 12:55 NW 7 6.44 Fog/Mist CLR 18 16 88% 76 0.0
02 12:35 W 9 8.05 Fog/Mist CLR 19 16 83% 76 0.0
02 12:15 NW 7 6.44 Fog/Mist CLR 17 16 94% 76 0.0
02 11:55 W 7 6.44 Fog/Mist SCT003 16 16 100% 76 0.0
02 11:35 NW 15 3.22 Fog/Mist BKN003 15 15 100% 76.02 0.0
02 11:15 NW 20 9.66 Fog/Mist FEW004 17 16 94% 76 0.0
02 10:55 NW 15 8.05 Fog/Mist BKN003 16 16 100% 76.02 0.0
02 10:35 NW 13 6.44 Fog/Mist BKN003 15 15 100% 76.02 0.0
02 10:15 Vrbl 9 4.02 Fog/Mist OVC003 14 14 100% 76.02 0.0
02 09:55 NW 9 3.22 Fog/Mist OVC003 14 14 100% 76.05 0.0
02 09:35 Calm 2.82 Fog/Mist OVC003 14 14 100% 76.02 0.0
02 09:15 Calm 1.21 Fog/Mist OVC003 13 13 100% 76.02 0.0
02 08:35 Calm 3.22 Fog/Mist OVC003 13 13 100% 76.02 0.0
02 08:15 Calm 1.21 Fog/Mist OVC002 13 13 100% 75.97 0.0
02 07:55 NW 6 0.24 Fog OVC002 13 13 100% 75.97 0.0
02 07:35 N 7 0.24 Fog OVC002 13 13 100% 75.92 0.0
02 07:15 Vrbl 7 0.24 Fog OVC002 13 13 100% 75.95 0.0
02 06:35 NE 9 0.40 Fog OVC002 13 13 100% 75.95 0.0
02 06:15 E 6 0.40 Fog OVC002 13 13 100% 75.97 0.0
02 05:55 Calm 0.40 Fog OVC002 13 13 100% 75.97 0.0
02 05:35 NE 11 0.40 Fog OVC002 13 13 100% 75.97 0.0
02 05:15 Calm 0.24 Fog OVC002 13 13 100% 75.95 0.0
02 04:55 W 9 0.40 Fog OVC002 13 13 100% 75.9 0.0
02 04:35 NE 11 0.40 Fog OVC002 13 13 100% 75.92 0.0
02 04:15 NE 7 0.80 Fog/Mist OVC002 13 13 100% 75.95 0.0
02 03:55 Calm 0.40 Fog OVC002 13 13 100% 75.92 0.0
02 03:35 Calm 1.21 Overcast OVC002 0 0 0% 75.95 0.0
02 03:15 Calm 2.82 Fog/Mist OVC002 13 13 100% 75.92 0.0
02 02:55 Calm 2.82 Fog/Mist OVC003 13 13 100% 75.92 0.0
02 02:35 SE 7 2.82 Fog/Mist OVC002 13 13 100% 75.92 0.0
02 02:15 E 9 1.21 Fog/Mist OVC002 14 14 100% 75.95 0.0
02 01:55 S 9 1.61 Fog/Mist OVC002 14 14 100% 76 0.0
02 01:15 Calm 0.80 Fog/Mist OVC002 14 14 100% 75.95 0.0
02 00:35 SE 6 0.80 Fog/Mist OVC002 14 14 100% 75.95 0.0
02 00:15 S 7 0.80 Fog/Mist OVC002 14 14 100% 75.95 0.0
01 23:55 Calm 0.80 Overcast OVC002 0 0 0% 75.95 0.0
01 23:35 SE 7 0.80 Fog/Mist OVC002 14 14 100% 75.92 0.0
01 23:15 S 9 0.80 Fog OVC002 14 14 100% 75.95 0.0
01 22:55 S 7 1.21 Fog/Mist OVC002 14 14 100% 75.95 0.0
01 22:35 Vrbl 7 0.80 Fog OVC002 14 14 100% 75.95 0.0
01 22:15 S 7 2.82 Fog/Mist OVC002 14 14 100% 75.95 0.0
01 21:55 S 13 2.41 Fog/Mist OVC003 14 14 100% 75.92 0.0
01 21:35 SE 11 3.22 Fog/Mist OVC003 14 14 100% 75.95 0.0
01 21:15 SW 9 4.83 Fog/Mist OVC003 14 14 100% 75.95 0.0
01 20:55 SE 9 6.44 Fog/Mist OVC003 14 14 100% 75.92 0.0
01 20:35 S 9 6.44 Fog/Mist OVC003 14 14 100% 75.9 0.0
01 20:15 SE 11 8.05 Fog/Mist OVC003 14 14 100% 75.9 0.0
01 19:55 S 9 8.05 Fog/Mist OVC003 14 14 100% 75.92 0.0
01 19:35 SW 11 8.05 Fog/Mist OVC003 14 14 100% 75.92 0.0
01 19:15 S 11 9.66 Fog/Mist OVC004 14 14 100% 75.9 0.0
01 18:55 S 11 8.05 Fog/Mist OVC004 14 14 100% 75.9 0.0
01 18:35 SW 11 6.44 Fog/Mist OVC004 14 14 100% 75.9 0.0
01 18:15 S 11 8.05 Fog/Mist OVC004 14 14 100% 75.87 0.0
01 17:55 S 13 8.05 Fog/Mist OVC004 14 14 100% 75.87 0.0
01 17:35 SE 11 9.66 Fog/Mist OVC004 14 14 100% 75.87 0.0
01 17:15 S 17 9.66 Fog/Mist OVC004 15 15 100% 75.9 0.0
01 16:55 S 15 8.05 Fog/Mist OVC003 15 15 100% 75.9 0.0
01 16:35 S 15 9.66 Fog/Mist OVC003 15 15 100% 75.9 0.0
01 16:15 S 15 9.66 Fog/Mist OVC003 15 15 100% 75.9 0.0
01 15:55 S 11 8.05 Fog/Mist OVC003 15 15 100% 75.9 0.0
01 15:35 S 11 8.05 Fog/Mist OVC004 15 15 100% 75.9 0.0
01 15:15 Vrbl 11 11.27 Overcast OVC005 15 15 100% 75.9 0.0
01 14:55 S 13 9.66 Fog/Mist OVC005 15 15 100% 75.9 0.0
01 14:35 S 9 9.66 Fog/Mist OVC004 15 15 100% 75.9 0.0
01 14:15 Vrbl 9 8.05 Fog/Mist OVC004 15 15 100% 75.92 0.0
01 13:55 SW 9 8.05 Fog/Mist OVC004 16 15 94% 75.92 0.0
01 13:35 Vrbl 7 6.44 Fog/Mist BKN005 16 15 94% 75.95 0.0
01 13:15 SW 9 4.83 Fog/Mist FEW004 16 15 94% 75.95 0.0
01 12:55 SW 6 9.66 Fog/Mist SCT005 15 15 100% 75.95 0.0
01 12:35 SW 11 9.66 Fog/Mist FEW005 15 15 100% 75.97 0.0
01 12:15 SW 11 8.05 Fog/Mist FEW004 15 14 94% 75.97 0.0
01 11:55 S 9 14.48 Partly Cloudy SCT005 15 14 94% 75.97 0.0
01 11:35 Vrbl 9 9.66 Fog/Mist OVC004 14 14 100% 75.97 0.0
01 11:15 SW 7 2.82 Fog/Mist OVC004 14 14 100% 75.97 0.0
01 10:55 Vrbl 9 4.83 Fog/Mist OVC004 14 14 100% 75.97 0.0
01 10:35 S 7 4.02 Fog/Mist BKN004 13 13 100% 75.97 0.0
01 10:15 S 11 12.87 Mostly Cloudy BKN004 13 13 100% 75.97 0.0
01 09:55 S 9 2.82 Overcast OVC002 0 0 0% 75.97 0.0
01 09:35 Calm 0.24 Fog OVC002 0 0 0% 75.97 0.0
01 09:15 S 6 0.24 Fog OVC002 13 13 100% 75.95 0.0
01 08:55 Calm 0.24 Fog OVC002 12 12 100% 75.95 0.0
01 08:35 Calm 0.24 Overcast OVC002 0 0 0% 75.9 0.0
01 08:15 Calm 0.24 Fog OVC002 11 11 100% 75.9 0.0
01 07:35 SE 7 0.24 Fog OVC002 12 12 100% 75.9 0.0
01 07:15 E 6 0.24 Fog OVC002 11 11 100% 75.87 0.0
01 06:55 E 6 0.40 Fog OVC002 11 11 100% 75.9 0.0
01 06:35 SE 7 0.80 Fog/Mist OVC002 12 12 100% 75.87 0.0
01 06:15 E 7 1.61 Fog/Mist OVC002 11 11 100% 75.87 0.0
01 05:55 E 7 0.80 Fog OVC002 11 11 100% 75.87 0.0
01 05:35 E 7 0.40 Fog OVC002 11 11 100% 75.84 0.0
01 05:15 E 9 0.40 Fog OVC002 11 11 100% 75.82 0.0
01 04:55 Vrbl 6 0.80 Fog OVC002 11 11 100% 75.82 0.0
01 04:35 E 7 0.80 Fog/Mist OVC002 11 11 100% 75.82 0.0
01 04:15 E 7 1.21 Fog/Mist OVC002 11 11 100% 75.82 0.0
01 03:55 E 6 0.80 Fog OVC002 11 11 100% 75.82 0.0
01 03:35 E 6 0.40 Fog OVC002 11 11 100% 75.82 0.0
01 03:15 E 7 0.40 Fog OVC002 11 11 100% 75.82 0.0
01 02:55 E 9 0.40 Fog OVC002 11 11 100% 75.82 0.0
01 02:35 E 6 0.40 Fog OVC002 11 11 100% 75.82 0.0
01 02:15 NE 7 0.80 Fog OVC002 11 11 100% 75.82 0.0
01 01:55 Calm 0.80 Fog OVC002 12 12 100% 75.82 0.0
01 01:35 E 6 0.40 Fog OVC002 12 12 100% 75.82 0.0
01 01:15 E 7 0.40 Fog OVC002 12 12 100% 75.84 0.0
01 00:55 E 9 0.40 Fog OVC002 12 12 100% 75.84 0.0
01 00:35 NE 7 0.80 Fog OVC002 12 12 100% 75.87 0.0
01 00:15 NE 6 0.80 Fog/Mist OVC002 12 12 100% 75.87 0.0
30 23:35 E 6 2.01 Fog/Mist OVC002 13 13 100% 75.87 0.0
30 23:15 E 6 3.22 Fog/Mist OVC003 13 13 100% 75.87 0.0
30 22:55 Calm 4.02 Fog/Mist OVC003 13 13 100% 75.87 0.0
30 22:35 Calm 4.02 Fog/Mist OVC003 13 13 100% 75.87 0.0
30 22:15 Calm 2.82 Fog/Mist OVC003 13 13 100% 75.87 0.0
30 21:55 N 7 4.02 Fog/Mist OVC003 13 13 100% 75.87 0.0
30 21:35 Vrbl 6 1.61 Overcast OVC002 0 0 0% 75.84 0.0
30 21:15 NW 9 1.61 Fog/Mist OVC002 13 13 100% 75.84 0.0
30 20:15 NW 9 2.01 Fog/Mist OVC002 13 13 100% 75.79 0.0
30 19:55 NW 9 0.80 Overcast OVC002 0 0 0% 75.79 0.0
30 19:35 NW 11 1.21 Fog/Mist OVC002 14 14 100% 75.79 0.0
30 19:15 N 9 2.01 Fog/Mist OVC002 14 14 100% 75.77 0.0
30 18:55 N 11 0.80 Fog OVC002 14 14 100% 75.77 0.0
30 18:35 N 13 0.80 Fog/Mist OVC003 14 14 100% 75.74 0.0
30 18:15 NW 13 0.40 Fog OVC003 14 14 100% 75.74 0.0
30 17:55 NW 17 1.21 Fog/Mist OVC003 14 14 100% 75.74 0.0
30 17:35 NW 13 4.02 Fog/Mist OVC003 15 15 100% 75.72 0.0
30 17:15 NW 15 4.02 Fog/Mist OVC003 15 15 100% 75.74 0.0
30 16:55 NW 15 6.44 Fog/Mist BKN003 15 15 100% 75.74 0.0
30 16:35 NW 15 1.21 Fog/Mist OVC003 15 15 100% 75.74 0.0
30 16:15 NW 13 3.22 Fog/Mist BKN003 15 15 100% 75.74 0.0
30 15:55 NW 11 4.02 Fog/Mist FEW004 16 15 94% 75.74 0.0
30 15:35 NW 11 9.66 Fog/Mist SCT004 16 15 94% 75.74 0.0
30 15:15 NW 17 4.83 Fog/Mist BKN003 16 15 94% 75.74 0.0
30 14:55 NW 13 4.02 Fog/Mist SCT003 16 15 94% 75.74 0.0
30 14:35 W 13 9.66 Fog/Mist CLR 16 15 94% 75.77 0.0
30 14:15 W 11 6.44 Fog/Mist FEW004 16 15 94% 75.77 0.0
30 13:55 NW 11 6.44 Fog/Mist FEW004 16 15 94% 75.79 0.0
30 13:35 NW 13 4.83 Fog/Mist CLR 16 15 94% 75.79 0.0
30 13:15 NW 9 4.83 Fog/Mist CLR 16 15 94% 75.82 0.0
30 12:55 W 15 6.44 Fog/Mist CLR 16 15 94% 75.82 0.0
30 12:35 W 11 4.83 Fog/Mist CLR 17 15 88% 75.82 0.0
30 12:15 W 11 4.83 Fog/Mist CLR 17 15 88% 75.82 0.0
30 11:55 NW 9 4.83 Fog/Mist CLR 17 15 88% 75.84 0.0
30 11:35 W 11 4.83 Fog/Mist CLR 17 15 88% 75.82 0.0
30 11:15 Vrbl 11 4.83 Fog/Mist CLR 17 15 88% 75.84 0.0
30 10:55 SW 11 4.83 Fog/Mist CLR 17 15 88% 75.84 0.0
30 10:35 S 13 4.83 Fog/Mist CLR 17 15 88% 75.82 0.0
30 10:15 S 11 4.83 Fog/Mist CLR 17 15 88% 75.82 0.0
30 09:55 Vrbl 9 4.83 Fog/Mist CLR 17 15 88% 75.82 0.0
30 09:35 S 13 4.83 Fog/Mist CLR 16 15 94% 75.79 0.0
30 09:15 S 15 4.02 Fog/Mist CLR 15 15 100% 75.79 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)