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.
26 05:15 Calm 8.05 Fog/Mist OVC016 12 12 100% 76.07 0.0
26 04:55 Calm 6.44 Fog/Mist OVC016 12 12 100% 76.07 0.0
26 04:35 Calm 8.05 Fog/Mist OVC014 12 12 100% 76.05 0.0
26 04:15 Calm 6.44 Fog/Mist OVC014 11 11 100% 76.07 0.0
26 03:55 Calm 8.05 Fog/Mist OVC013 11 11 100% 76.1 0.0
26 03:35 Calm 8.05 Fog/Mist BKN013 12 12 100% 76.1 0.0
26 03:15 Calm 8.05 Fog/Mist OVC013 12 12 100% 76.1 0.0
26 02:55 Calm 8.05 Overcast OVC013 0 0 0% 76.1 0.0
26 02:35 Calm 8.05 Fog/Mist OVC013 12 12 100% 76.1 0.0
26 02:15 Calm 8.05 Fog/Mist OVC013 12 12 100% 76.1 0.0
26 01:55 Calm 8.05 Fog/Mist BKN014 12 12 100% 76.1 0.0
26 01:35 Calm 8.05 Fog/Mist BKN014 12 12 100% 76.12 0.0
26 01:15 Calm 8.05 Fog/Mist BKN014 12 12 100% 76.12 0.0
26 00:55 Calm 8.05 Fog/Mist OVC014 12 12 100% 76.12 0.0
26 00:35 Calm 8.05 Fog/Mist OVC015 12 12 100% 76.12 0.0
26 00:15 Calm 8.05 Fog/Mist OVC015 13 13 100% 76.12 0.0
25 23:55 Calm 8.05 Fog/Mist OVC014 12 12 100% 76.12 0.0
25 23:35 Calm 8.05 Fog/Mist BKN014 13 13 100% 76.15 0.0
25 23:15 NW 11 8.05 Fog/Mist SCT013 14 14 100% 76.15 0.0
25 22:55 NW 13 8.05 Fog/Mist BKN014 14 14 100% 76.15 0.0
25 22:35 NW 13 8.05 Fog/Mist SCT014 14 14 100% 76.15 0.0
25 22:15 N 15 8.05 Fog/Mist FEW014 14 14 100% 76.15 0.0
25 21:55 NW 17 G 28 9.66 Fog/Mist CLR 14 14 100% 76.15 0.0
25 21:35 NW 20 G 31 8.05 Fog/Mist CLR 15 14 94% 76.15 0.0
25 21:15 NW 22 9.66 Fog/Mist CLR 15 14 94% 76.15 0.0
25 20:55 NW 22 9.66 Fog/Mist CLR 15 14 94% 76.15 0.0
25 20:35 N 20 9.66 Fog/Mist CLR 15 14 94% 76.15 0.0
25 20:15 NW 20 G 30 9.66 Fog/Mist CLR 15 14 94% 76.15 0.0
25 19:55 N 17 G 30 9.66 Fog/Mist CLR 15 14 94% 76.12 0.0
25 19:35 N 20 9.66 Fog/Mist CLR 15 14 94% 76.15 0.0
25 19:15 N 26 G 35 8.05 Fog/Mist CLR 15 14 94% 76.15 0.0
25 18:55 N 26 8.05 Fog/Mist CLR 16 14 88% 76.15 0.0
25 18:35 N 22 8.05 Fog/Mist CLR 16 14 88% 76.17 0.0
25 18:15 N 20 G 35 9.66 Fair with Haze CLR 17 14 83% 76.17 0.0
25 17:55 N 24 9.66 Fair with Haze CLR 17 14 83% 76.17 0.0
25 17:35 N 24 G 33 8.05 Fair with Haze CLR 17 14 83% 76.17 0.0
25 17:15 N 26 9.66 Fair with Haze CLR 18 14 78% 76.2 0.0
25 16:55 N 22 G 37 9.66 Fair with Haze CLR 18 14 78% 76.2 0.0
25 16:35 NW 22 9.66 Fair with Haze CLR 18 14 78% 76.23 0.0
25 16:15 NW 22 G 31 9.66 Fair with Haze CLR 18 15 83% 76.23 0.0
25 15:55 NW 26 9.66 Fair with Haze CLR 18 15 83% 76.25 0.0
25 15:35 NW 28 9.66 Fair with Haze CLR 18 15 83% 76.23 0.0
25 15:15 NW 24 8.05 A Few Clouds with Haze FEW013 18 15 83% 76.25 0.0
25 14:55 NW 26 8.05 Fair with Haze CLR 18 15 83% 76.25 0.0
25 14:35 NW 19 9.66 Fair with Haze CLR 19 15 78% 76.25 0.0
25 14:15 N 19 G 30 9.66 Fair with Haze CLR 18 15 83% 76.28 0.0
25 13:55 NW 20 9.66 Fair with Haze CLR 18 16 88% 76.28 0.0
25 13:35 NW 22 8.05 A Few Clouds with Haze FEW013 18 16 88% 76.3 0.0
25 13:15 NW 20 9.66 Partly Cloudy with Haze SCT013 18 16 88% 76.3 0.0
25 12:55 NW 19 8.05 Fog/Mist BKN013 18 16 88% 76.3 0.0
25 12:35 NW 22 8.05 Mostly Cloudy with Haze BKN013 18 16 88% 76.33 0.0
25 12:15 NW 17 9.66 Fog/Mist BKN013 18 16 88% 76.33 0.0
25 11:55 NW 13 9.66 Fog/Mist BKN013 17 16 94% 76.33 0.0
25 11:35 NW 13 G 22 9.66 Mostly Cloudy BKN013 0 0 0% 76.33 0.0
25 11:15 NW 13 9.66 Fog/Mist BKN012 17 16 94% 76.33 0.0
25 10:55 NW 17 9.66 Fog/Mist BKN012 17 17 100% 76.33 0.0
25 10:35 NW 13 9.66 Fog/Mist BKN011 17 17 100% 76.3 0.0
25 10:15 N 17 9.66 Fog/Mist BKN011 17 17 100% 76.3 0.0
25 09:55 N 15 11.27 Mostly Cloudy BKN012 BKN019 16 16 100% 76.28 0.0
25 09:35 NW 15 11.27 Mostly Cloudy FEW012 BKN018 16 16 100% 76.28 0.0
25 09:15 NW 9 12.87 Mostly Cloudy SCT004 BKN015 16 16 100% 76.25 0.0
25 08:55 N 15 6.44 Fog/Mist BKN003 16 16 100% 76.25 0.0
25 08:35 NW 11 2.82 Fog/Mist OVC003 16 16 100% 76.25 0.0
25 08:15 N 9 1.21 Fog/Mist OVC003 16 16 100% 76.23 0.0
25 07:55 N 9 2.41 Fog/Mist OVC003 16 16 100% 76.23 0.0
25 07:35 N 11 0.80 Fog OVC002 16 16 100% 76.23 0.0
25 07:15 NW 9 0.80 Fog/Mist OVC002 16 16 100% 76.2 0.0
25 06:55 NW 7 0.40 Fog OVC002 16 16 100% 76.17 0.0
25 06:35 NW 6 0.40 Fog OVC002 16 16 100% 76.17 0.0
25 06:15 Calm 0.40 Fog OVC002 16 16 100% 76.17 0.0
25 05:55 NW 7 0.40 Fog OVC002 16 16 100% 76.17 0.0
25 05:35 NW 9 0.80 Fog OVC002 16 16 100% 76.15 0.0
25 05:15 NW 9 0.80 Fog OVC002 16 16 100% 76.15 0.0
25 04:55 NW 7 0.80 Overcast OVC002 0 0 0% 76.15 0.0
25 04:35 Calm 1.21 Fog/Mist OVC002 15 15 100% 76.15 0.0
25 04:15 Calm 0.80 Fog/Mist OVC002 15 15 100% 76.15 0.0
25 03:55 Calm 0.80 Fog/Mist OVC003 15 15 100% 76.12 0.0
25 03:35 Calm 0.80 Fog/Mist OVC003 15 15 100% 76.15 0.0
25 03:15 Calm 0.80 Overcast OVC002 0 0 0% 76.15 0.0
25 02:55 NW 6 1.21 Fog/Mist OVC002 15 15 100% 76.15 0.0
25 02:35 NW 9 1.61 Fog/Mist OVC002 15 15 100% 76.15 0.0
25 02:15 NW 15 6.44 Fog/Mist BKN006 OVC011 15 15 100% 76.15 0.0
25 01:55 NW 7 8.05 Fog/Mist OVC010 14 14 100% 76.15 0.0
25 01:35 Calm 8.05 Fog/Mist BKN009 BKN013 12 12 100% 76.15 0.0
25 01:15 Calm 9.66 Fog/Mist OVC009 12 12 100% 76.15 0.0
25 00:55 Calm 9.66 Fog/Mist OVC009 0 0 0% 76.15 0.0
25 00:35 Calm 8.05 Fog/Mist OVC010 13 13 100% 76.15 0.0
25 00:15 Calm 9.66 Fog/Mist OVC012 13 13 100% 76.15 0.0
24 23:55 Calm 9.66 Fog/Mist FEW003 BKN014 11 11 100% 76.15 0.0
24 23:35 Calm 8.05 Fog/Mist BKN003 12 12 100% 76.15 0.0
24 23:15 Calm 8.05 Fog/Mist OVC003 12 12 100% 76.12 0.0
24 22:55 Calm 8.05 Fog/Mist OVC003 13 13 100% 76.12 0.0
24 22:35 Calm 8.05 Fog/Mist OVC003 13 13 100% 76.12 0.0
24 21:55 Calm 8.05 Fog/Mist OVC003 13 13 100% 76.12 0.0
24 21:35 Calm 8.05 Fog/Mist SCT003 13 13 100% 76.1 0.0
24 21:15 Calm 6.44 Fog/Mist CLR 14 14 100% 76.1 0.0
24 20:55 Calm 6.44 Fog/Mist FEW003 14 14 100% 76.07 0.0
24 20:35 Calm 6.44 Fog/Mist FEW003 15 15 100% 76.05 0.0
24 20:15 Calm 6.44 Fog/Mist CLR 15 15 100% 76.05 0.0
24 19:55 NW 6 8.05 Fog/Mist CLR 15 15 100% 76.02 0.0
24 19:35 NW 7 8.05 Fog/Mist CLR 15 15 100% 76.02 0.0
24 19:15 NW 7 6.44 Fog/Mist CLR 16 16 100% 76.02 0.0
24 18:55 NW 9 6.44 Fog/Mist CLR 16 16 100% 76.02 0.0
24 18:35 NW 13 6.44 Fog/Mist CLR 16 16 100% 76.02 0.0
24 18:15 N 15 6.44 Fog/Mist CLR 16 16 100% 76.02 0.0
24 17:55 NW 11 6.44 Fog/Mist FEW009 17 16 94% 76.02 0.0
24 17:35 NW 15 8.05 Fog/Mist CLR 17 16 94% 76.02 0.0
24 17:15 NW 15 8.05 Fair CLR 0 0 0% 76.02 0.0
24 16:55 NW 17 8.05 Fair with Haze CLR 18 15 83% 76.02 0.0
24 16:35 NW 17 6.44 Fair with Haze CLR 18 15 83% 76 0.0
24 16:15 NW 15 6.44 Fog/Mist CLR 17 15 88% 76 0.0
24 15:55 NW 13 6.44 Fog/Mist CLR 17 15 88% 76 0.0
24 15:35 NW 15 4.83 Fog/Mist CLR 17 15 88% 76 0.0
24 15:15 W 13 6.44 Fair with Haze CLR 18 16 88% 76 0.0
24 14:55 W 11 4.83 Fair with Haze CLR 18 15 83% 76 0.0
24 14:35 W 13 4.83 Fog/Mist CLR 17 15 88% 76 0.0
24 14:15 W 13 6.44 Fair with Haze CLR 18 15 83% 75.97 0.0
24 13:55 W 11 6.44 Fair with Haze CLR 18 15 83% 76 0.0
24 13:35 W 11 4.83 Fog/Mist CLR 18 16 88% 76 0.0
24 13:15 NW 15 6.44 Fair with Haze CLR 18 15 83% 76 0.0
24 12:55 NW 13 6.44 Fair with Haze CLR 18 15 83% 76 0.0
24 12:35 NW 11 6.44 Fair with Haze CLR 18 16 88% 76 0.0
24 12:15 NW 11 4.83 Fog/Mist CLR 18 16 88% 76 0.0
24 11:55 NW 9 6.44 Fair with Haze CLR 18 16 88% 76 0.0
24 11:15 NW 15 6.44 Fog/Mist CLR 18 16 88% 76 0.0
24 10:55 NW 13 4.83 Fog/Mist CLR 17 16 94% 76 0.0
24 10:35 W 11 4.83 Fog/Mist CLR 17 16 94% 76 0.0
24 10:15 NW 11 4.83 Fog/Mist CLR 17 16 94% 75.97 0.0
24 09:55 W 7 4.83 NULL NULL 0 0 0% 75.97 0.0
24 09:35 W 6 0.00 NULL NULL 17 16 94% 75.97 0.0
24 09:15 Calm 4.83 Fog/Mist CLR 0 0 0% 0 0.0
24 08:55 NW 9 4.83 Fog/Mist CLR 15 15 100% 75.97 0.0
24 08:35 Calm 4.83 Fog/Mist CLR 15 15 100% 75.97 0.0
24 08:15 Calm 4.83 Fog/Mist CLR 12 12 100% 75.95 0.0
24 07:55 Calm 6.44 Fog/Mist FEW004 11 11 100% 75.95 0.0
24 07:35 Calm 4.83 Fog/Mist FEW003 10 10 100% 75.95 0.0
24 07:15 Calm 6.44 Fog/Mist BKN003 10 10 100% 75.92 0.0
24 06:55 Calm 9.66 Fog/Mist OVC003 9 9 100% 75.9 0.0
24 06:35 Calm 9.66 Fog/Mist OVC003 9 9 100% 75.87 0.0
24 06:15 Calm 9.66 Fog/Mist OVC003 9 9 100% 75.9 0.0
24 05:55 Calm 9.66 Fog/Mist SCT003 9 9 100% 75.87 0.0
24 05:35 Calm 11.27 Partly Cloudy SCT003 10 10 100% 75.87 0.0
24 05:15 Calm 4.83 Fog/Mist BKN003 9 9 100% 75.87 0.0
24 04:55 Calm 8.05 Overcast OVC003 0 0 0% 75.87 0.0
24 04:35 Calm 6.44 Fog/Mist OVC003 10 10 100% 75.87 0.0
24 04:15 Calm 6.44 Fog/Mist OVC003 10 10 100% 75.9 0.0
24 03:55 Calm 6.44 Fog/Mist OVC003 10 10 100% 75.9 0.0
24 03:35 Calm 6.44 Fog/Mist OVC003 10 10 100% 75.9 0.0
24 03:15 Calm 8.05 Fog/Mist OVC003 10 10 100% 75.9 0.0
24 02:55 Calm 6.44 Fog/Mist OVC003 10 10 100% 75.92 0.0
24 02:35 Calm 6.44 Fog/Mist OVC003 10 10 100% 75.9 0.0
24 02:15 NE 7 8.05 Fog/Mist OVC003 10 10 100% 9 75.9 0.0
24 01:55 Calm 11.27 Overcast OVC003 10 10 100% 75.9 0.0
24 01:35 Calm 9.66 Fog/Mist BKN003 10 10 100% 75.9 0.0
24 01:15 Calm 9.66 Fog/Mist FEW003 10 10 100% 75.9 0.0
24 00:55 Calm 11.27 A Few Clouds FEW003 10 10 100% 75.9 0.0
24 00:35 Calm 8.05 Fog/Mist FEW003 11 11 100% 75.9 0.0
24 00:15 Calm 9.66 Fog/Mist CLR 10 10 100% 75.9 0.0
23 23:55 Calm 8.05 Fog/Mist CLR 11 11 100% 75.87 0.0
23 23:35 Calm 9.66 Fog/Mist CLR 11 11 100% 75.9 0.0
23 23:15 Calm 9.66 Fog/Mist CLR 11 11 100% 75.9 0.0
23 22:55 Calm 8.05 Fog/Mist FEW003 12 12 100% 75.9 0.0
23 22:35 NW 6 4.83 Fog/Mist CLR 12 12 100% 75.9 0.0
23 22:15 NW 7 6.44 Fog/Mist CLR 12 12 100% 75.9 0.0
23 21:55 NW 9 8.05 Fair CLR 0 0 0% 75.9 0.0
23 21:35 Calm 9.66 Fog/Mist CLR 12 12 100% 75.9 0.0
23 21:15 Calm 6.44 Fog/Mist CLR 13 13 100% 75.9 0.0
23 20:55 Calm 6.44 Fog/Mist CLR 14 14 100% 75.9 0.0
23 20:35 NW 9 6.44 Fog/Mist CLR 14 14 100% 75.87 0.0
23 19:55 N 6 8.05 Fog/Mist CLR 14 14 100% 75.9 0.0
23 19:35 NW 7 8.05 Fog/Mist FEW017 15 15 100% 75.87 0.0
23 19:15 NW 11 6.44 Fog/Mist FEW017 15 15 100% 75.9 0.0
23 18:55 Calm 9.66 Fog/Mist CLR 16 15 94% 75.87 0.0
23 18:35 N 13 8.05 Fog/Mist CLR 16 15 94% 75.87 0.0
23 18:15 NW 19 9.66 Fog/Mist CLR 17 15 88% 75.87 0.0
23 17:55 NW 17 G 26 11.27 Fair CLR 18 15 83% 75.87 0.0
23 17:35 NW 20 G 30 11.27 Fair CLR 18 14 78% 75.87 0.0
23 17:15 NW 24 12.87 Fair CLR 19 14 73% 75.9 0.0
23 16:55 NW 22 12.87 Fair CLR 19 14 73% 75.9 0.0
23 16:35 NW 20 11.27 Fair CLR 20 14 69% 75.9 0.0
23 16:15 NW 19 11.27 NULL NULL 23 13 53% 75.92 0.0
23 15:55 NW 19 0.00 NULL NULL 22 14 61% 75.92 0.0
23 15:15 NW 24 11.27 Fair CLR 19 15 78% 75.95 0.0
23 14:55 NW 22 11.27 Fair CLR 18 15 83% 75.95 0.0
23 14:35 N 20 11.27 Fair CLR 17 15 88% 75.97 0.0
23 14:15 NW 28 11.27 Partly Cloudy SCT004 17 15 88% 75.97 0.0
23 13:55 N 24 8.05 Fog/Mist BKN004 17 15 88% 75.97 0.0
23 13:35 NW 26 4.83 Fog/Mist BKN004 16 15 94% 76 0.0
23 13:15 NW 24 6.44 Fog/Mist BKN004 16 15 94% 76 0.0
23 12:55 NW 22 4.83 Fog/Mist BKN004 17 16 94% 76.02 0.0
23 12:35 NW 17 4.83 Fog/Mist CLR 17 16 94% 76.05 0.0
23 12:15 NW 17 6.44 Fog/Mist CLR 17 16 94% 76.07 0.0
23 11:55 W 11 6.44 Fog/Mist CLR 16 15 94% 76.07 0.0
23 11:35 W 9 6.44 Fog/Mist FEW006 16 15 94% 76.1 0.0
23 11:15 W 7 8.05 Fog/Mist BKN006 16 15 94% 76.1 0.0
23 10:55 Calm 8.05 Fog/Mist OVC004 15 15 100% 76.1 0.0
23 10:35 Calm 4.02 Fog/Mist OVC003 14 14 100% 76.1 0.0
23 10:15 Calm 1.61 Fog/Mist OVC003 13 13 100% 76.1 0.0
23 09:55 Calm 0.40 Fog OVC002 13 13 100% 76.1 0.0
23 09:35 Calm 0.40 Fog OVC002 13 13 100% 76.1 0.0
23 09:15 Calm 0.40 Fog OVC002 13 13 100% 76.07 0.0
23 08:55 Calm 0.24 Fog OVC002 13 13 100% 76.07 0.0
23 08:35 Calm 0.40 Fog OVC002 13 13 100% 76.07 0.0
23 08:15 Calm 0.24 Fog OVC002 12 12 100% 76.07 0.0
23 07:55 Calm 0.40 Fog OVC002 13 13 100% 76.05 0.0
23 07:35 Calm 0.40 Fog OVC002 13 13 100% 76.05 0.0
23 07:15 NE 6 1.61 Fog/Mist OVC002 12 12 100% 76.05 0.0
23 06:55 Calm 4.02 Fog/Mist OVC002 12 12 100% 76.02 0.0
23 06:35 Calm 4.83 Fog/Mist OVC003 13 13 100% 76.02 0.0
23 06:15 Calm 6.44 Fog/Mist OVC003 13 13 100% 76 0.0
23 05:55 Calm 6.44 Fog/Mist OVC003 13 13 100% 76.02 0.0
23 05:35 E 9 6.44 Fog/Mist OVC004 13 13 100% 76.02 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)