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.
22 06:55 NE 7 9.66 Fog/Mist CLR 6 6 100% 5 76.17 0.0
22 06:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.15 0.0
22 06:15 Calm 8.05 Fog/Mist CLR 6 6 100% 76.17 0.0
22 05:55 Calm 8.05 Fog/Mist CLR 6 6 100% 76.15 0.0
22 05:15 NE 6 8.05 Fog/Mist CLR 7 7 100% 76.12 0.0
22 04:55 Calm 6.44 Fog/Mist CLR 8 8 100% 76.12 0.0
22 04:35 E 7 6.44 Fog/Mist FEW010 8 8 100% 7 76.12 0.0
22 04:15 E 6 8.05 Fog/Mist BKN011 9 9 100% 76.15 0.0
22 03:55 E 9 8.05 Fog/Mist OVC011 10 10 100% 9 76.15 0.0
22 03:35 Calm 6.44 Overcast OVC011 0 0 0% 76.17 0.0
22 03:15 Calm 6.44 Fog/Mist OVC012 9 9 100% 76.17 0.0
22 02:55 Calm 6.44 Fog/Mist OVC012 7 7 100% 76.23 0.0
22 02:35 Calm 6.44 Fog/Mist OVC013 7 7 100% 76.2 0.0
22 02:15 Calm 6.44 Fog/Mist BKN013 7 7 100% 76.2 0.0
22 01:55 Calm 6.44 Fog/Mist OVC013 7 7 100% 76.23 0.0
22 01:35 Calm 6.44 Fog/Mist BKN013 8 8 100% 76.25 0.0
22 01:15 Calm 6.44 Fog/Mist BKN013 8 8 100% 76.25 0.0
22 00:55 E 7 6.44 Fog/Mist SCT013 8 8 100% 7 76.28 0.0
22 00:15 Calm 6.44 Fog/Mist FEW013 10 10 100% 76.28 0.0
21 23:55 NW 11 6.44 Fog/Mist FEW014 10 10 100% 9 76.28 0.0
21 23:35 NW 9 6.44 Fog/Mist SCT013 11 11 100% 76.28 0.0
21 23:15 NW 15 6.44 Fog/Mist FEW013 11 11 100% 76.28 0.0
21 22:55 N 17 6.44 Fog/Mist SCT013 11 11 100% 76.28 0.0
21 22:35 N 13 6.44 Fog/Mist SCT013 11 11 100% 76.28 0.0
21 22:15 N 13 6.44 Fog/Mist SCT013 11 11 100% 76.28 0.0
21 21:55 N 17 6.44 Fog/Mist FEW013 11 11 100% 76.28 0.0
21 21:35 NW 19 6.44 Fog/Mist CLR 12 11 94% 76.25 0.0
21 21:15 N 20 G 30 8.05 Fog/Mist CLR 12 11 94% 76.25 0.0
21 20:55 N 26 G 41 8.05 Fog/Mist FEW003 12 11 94% 76.23 0.0
21 20:35 N 22 G 31 8.05 Fair with Haze CLR 13 10 82% 76.23 0.0
21 20:15 NW 26 G 37 8.05 Fog/Mist CLR 12 11 94% 76.2 0.0
21 19:55 NW 19 11.27 Fair CLR 13 9 77% 76.2 0.0
21 19:35 N 13 G 24 9.66 Fair with Haze CLR 13 9 77% 76.2 0.0
21 19:15 N 30 G 43 9.66 Fair with Haze CLR 14 9 72% 76.17 0.0
21 18:55 N 31 G 50 9.66 Fair with Haze CLR 15 9 68% 76.17 0.0
21 18:35 N 37 G 54 8.05 Fair with Haze and Breezy CLR 15 10 72% 76.17 0.0
21 18:15 N 39 G 50 11.27 Fair and Breezy CLR 15 10 72% 76.17 0.0
21 17:55 N 37 G 50 9.66 Fair with Haze and Breezy CLR 16 10 68% 76.17 0.0
21 17:35 N 39 G 48 9.66 Fair with Haze and Breezy CLR 16 10 68% 76.17 0.0
21 17:15 NW 35 G 44 8.05 Fair with Haze and Breezy CLR 16 12 77% 76.17 0.0
21 16:55 N 37 G 54 9.66 Fair with Haze and Breezy CLR 17 11 68% 76.15 0.0
21 16:35 N 41 G 56 9.66 Fair and Breezy CLR 0 0 0% 76.2 0.0
21 16:15 N 33 G 48 11.27 Fair and Breezy CLR 0 0 0% 76.2 0.0
21 15:55 N 28 G 43 12.87 Fair CLR 17 12 73% 76.2 0.0
21 15:35 N 30 G 41 11.27 Fair CLR 17 12 73% 76.2 0.0
21 15:15 NW 33 G 46 12.87 Fair and Breezy CLR 0 0 0% 76.2 0.0
21 14:55 N 24 G 43 11.27 Fair CLR 18 12 68% 76.17 0.0
21 14:35 N 30 11.27 Fair CLR 17 13 77% 76.2 0.0
21 14:15 NW 28 9.66 Fair with Haze CLR 17 14 83% 76.23 0.0
21 13:55 N 28 G 39 9.66 Fog/Mist CLR 16 14 88% 76.23 0.0
21 13:35 N 31 8.05 Fog/Mist CLR 15 14 94% 76.23 0.0
21 13:15 NW 28 G 37 8.05 Fog/Mist CLR 15 14 94% 76.23 0.0
21 12:55 N 31 G 44 8.05 Fog/Mist CLR 16 14 88% 76.23 0.0
21 12:35 NW 30 G 39 6.44 Fair CLR 0 0 0% 76.23 0.0
21 12:15 NW 26 6.44 Fog/Mist CLR 16 14 88% 76.23 0.0
21 11:55 NW 22 8.05 Fog/Mist CLR 17 14 83% 76.23 0.0
21 11:35 N 20 8.05 Fog/Mist CLR 16 14 88% 76.23 0.0
21 11:15 N 26 8.05 Fog/Mist CLR 16 14 88% 76.23 0.0
21 10:55 NW 22 6.44 Fair CLR 0 0 0% 76.23 0.0
21 10:35 NW 19 6.44 Fog/Mist CLR 15 14 94% 76.23 0.0
21 10:15 NW 19 4.83 Fog/Mist CLR 15 14 94% 76.2 0.0
21 09:55 NW 15 3.22 Fog/Mist CLR 15 15 100% 76.17 0.0
21 09:35 Calm 8.05 Fair CLR 0 0 0% 76.15 0.0
21 09:15 Calm 6.44 Fog/Mist CLR 14 14 100% 76.15 0.0
21 08:55 S 6 8.05 Fog/Mist CLR 14 14 100% 76.15 0.0
21 08:35 Calm 6.44 Fog/Mist CLR 13 13 100% 76.15 0.0
21 08:15 Calm 4.83 Fog/Mist CLR 12 12 100% 76.12 0.0
21 07:55 Calm 4.83 Fog/Mist FEW003 9 9 100% 76.12 0.0
21 07:35 Calm 4.83 Fog/Mist OVC003 9 9 100% 76.1 0.0
21 07:15 N 7 6.44 Fog/Mist OVC003 9 9 100% 8 76.1 0.0
21 06:55 Calm 9.66 Fog/Mist OVC003 9 9 100% 76.07 0.0
21 06:35 Calm 9.66 Fog/Mist OVC003 9 9 100% 76.07 0.0
21 06:15 Calm 11.27 Overcast OVC004 9 9 100% 76.07 0.0
21 05:55 Calm 8.05 Fog/Mist OVC004 10 10 100% 76.07 0.0
21 05:35 Calm 11.27 Overcast OVC003 9 9 100% 76.05 0.0
21 05:15 Calm 8.05 Fog/Mist BKN003 BKN047 10 10 100% 76.05 0.0
21 04:55 Calm 6.44 Fog/Mist BKN003 BKN048 11 11 100% 76.02 0.0
21 04:35 Calm 8.05 Fog/Mist OVC003 10 10 100% 76.05 0.0
21 04:15 E 6 9.66 Fog/Mist OVC003 10 10 100% 76.05 0.0
21 03:55 Calm 8.05 Fog/Mist OVC003 10 10 100% 76.05 0.0
21 03:35 Calm 9.66 Fog/Mist SCT003 10 10 100% 76.05 0.0
21 03:15 SE 9 11.27 Mostly Cloudy BKN003 10 10 100% 9 76.05 0.0
21 02:35 Calm 6.44 Fog/Mist OVC003 10 10 100% 76.05 0.0
21 02:15 Calm 11.27 Overcast OVC003 10 10 100% 76.05 0.0
21 01:55 Calm 11.27 Overcast OVC003 0 0 0% 76.05 0.0
21 01:35 Calm 8.05 Fog/Mist BKN003 BKN029 BKN035 10 10 100% 76.05 0.0
21 01:15 SE 9 6.44 Fog/Mist SCT003 BKN030 SCT035 11 11 100% 76.02 0.0
21 00:55 S 6 4.83 Fog/Mist OVC003 11 11 100% 76.05 0.0
21 00:35 S 7 4.83 Fog/Mist OVC003 12 12 100% 76.02 0.0
21 00:15 S 9 4.83 Fog/Mist OVC003 12 12 100% 76.02 0.0
20 23:55 SE 9 4.02 Fog/Mist OVC002 12 12 100% 76.05 0.0
20 23:35 S 9 6.44 Fog/Mist BKN003 12 12 100% 76.02 0.0
20 23:15 S 13 4.83 Fog/Mist BKN002 12 12 100% 76.02 0.0
20 22:35 S 13 4.02 Fog/Mist CLR 12 12 100% 76.02 0.0
20 22:15 S 7 4.83 Fog/Mist FEW003 12 12 100% 76.02 0.0
20 21:55 S 9 6.44 Fog/Mist SCT002 12 12 100% 76 0.0
20 21:35 SE 9 6.44 Fog/Mist CLR 12 12 100% 76 0.0
20 21:15 SE 6 8.05 Fog/Mist CLR 13 13 100% 75.97 0.0
20 20:55 Calm 9.66 Fog/Mist CLR 13 13 100% 75.97 0.0
20 20:35 S 6 9.66 Fog/Mist CLR 13 13 100% 75.95 0.0
20 20:15 SE 7 11.27 Fair CLR 13 13 100% 75.92 0.0
20 19:55 SE 9 11.27 Fair CLR 13 13 100% 75.95 0.0
20 19:35 SE 11 9.66 Fog/Mist CLR 13 13 100% 75.95 0.0
20 19:15 S 13 9.66 Fog/Mist CLR 14 14 100% 75.95 0.0
20 18:55 SE 11 11.27 Fair CLR 15 14 94% 75.95 0.0
20 18:35 S 13 12.87 Fair CLR 16 14 88% 75.95 0.0
20 18:15 S 11 9.66 Fog/Mist CLR 17 15 88% 75.92 0.0
20 17:55 Calm 12.87 Fair CLR 19 15 78% 75.92 0.0
20 17:35 NW 17 14.48 Fair CLR 0 0 0% 75.9 0.0
20 17:15 NW 22 14.48 Fair CLR 22 14 61% 75.9 0.0
20 16:55 NW 19 14.48 Fair CLR 22 14 61% 75.9 0.0
20 16:35 N 24 16.09 Fair CLR 23 13 53% 75.92 0.0
20 16:15 NW 17 14.48 Fair CLR 0 0 0% 75.92 0.0
20 15:55 NW 20 16.09 Fair CLR 24 13 50% 25 75.95 0.0
20 15:35 NW 15 14.48 Fair CLR 23 14 57% 75.95 0.0
20 15:15 W 17 14.48 Fair CLR 22 14 61% 76 0.0
20 14:55 NW 19 14.48 Fair CLR 22 15 65% 76 0.0
20 14:35 NW 13 12.87 Fair CLR 22 15 65% 76.02 0.0
20 14:15 NW 15 14.48 Fair CLR 22 16 69% 76.05 0.0
20 13:55 NW 17 11.27 Fair CLR 22 16 69% 76.07 0.0
20 13:35 NW 11 9.66 Fair with Haze CLR 22 17 73% 76.1 0.0
20 13:15 Calm 8.05 Fair with Haze CLR 23 17 69% 76.12 0.0
20 12:55 S 9 4.83 Fair with Haze CLR 21 17 78% 76.12 0.0
20 12:35 S 7 8.05 Fair with Haze CLR 21 17 78% 76.12 0.0
20 12:15 NW 7 8.05 Fair with Haze CLR 20 16 78% 76.15 0.0
20 11:55 W 11 6.44 Fair with Haze CLR 21 17 78% 76.15 0.0
20 11:35 Calm 12.87 Fair CLR 23 18 74% 76.15 0.0
20 11:15 Calm 9.66 Fair with Haze CLR 20 17 83% 76.15 0.0
20 10:55 S 7 8.05 Fair with Haze CLR 18 16 88% 76.17 0.0
20 10:35 S 9 8.05 Fog/Mist CLR 17 15 88% 76.17 0.0
20 10:15 SE 11 6.44 Fog/Mist CLR 18 15 83% 76.17 0.0
20 09:55 Calm 8.05 Fair with Haze CLR 19 17 88% 76.17 0.0
20 09:35 SE 6 6.44 Fog/Mist CLR 18 16 88% 76.17 0.0
20 09:15 Calm 9.66 Fog/Mist CLR 18 16 88% 76.17 0.0
20 08:55 Calm 9.66 Fog/Mist CLR 16 15 94% 76.15 0.0
20 08:35 Vrbl 6 6.44 Fog/Mist CLR 15 15 100% 76.15 0.0
20 08:15 Calm 4.83 Fog/Mist CLR 13 13 100% 76.15 0.0
20 07:55 Calm 8.05 Fog/Mist CLR 10 10 100% 76.15 0.0
20 07:15 Calm 8.05 Fog/Mist CLR 10 10 100% 76.17 0.0
20 06:55 Calm 8.05 Fair CLR 0 0 0% 76.15 0.0
20 06:35 Calm 9.66 Fog/Mist CLR 11 11 100% 76.15 0.0
20 06:15 NW 7 8.05 Fog/Mist CLR 10 10 100% 9 76.15 0.0
20 05:55 NW 6 8.05 Fog/Mist CLR 11 11 100% 76.15 0.0
20 05:35 Calm 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
20 05:15 Calm 12.87 Fair CLR 11 11 100% 76.17 0.0
20 04:55 Calm 12.87 Fair CLR 11 11 100% 76.15 0.0
20 04:35 Calm 12.87 Fair CLR 12 12 100% 76.17 0.0
20 04:15 Calm 12.87 Fair CLR 12 12 100% 76.17 0.0
20 03:55 NW 7 11.27 Fair CLR 12 12 100% 76.2 0.0
20 03:35 NW 9 12.87 Fair CLR 12 12 100% 76.2 0.0
20 03:15 Calm 14.48 Fair CLR 11 11 100% 76.23 0.0
20 02:55 NW 7 12.87 Fair CLR 12 12 100% 76.23 0.0
20 02:35 Calm 14.48 Fair CLR 12 12 100% 76.23 0.0
20 02:15 Calm 14.48 Fair CLR 11 11 100% 76.25 0.0
20 01:55 Calm 14.48 Fair CLR 11 11 100% 76.25 0.0
20 01:35 Calm 14.48 Fair CLR 11 11 100% 76.25 0.0
20 01:15 Calm 14.48 Fair CLR 11 11 100% 76.28 0.0
20 00:55 Calm 14.48 Fair CLR 11 11 100% 76.28 0.0
20 00:35 Calm 16.09 Fair CLR 12 12 100% 76.28 0.0
20 00:15 Calm 14.48 Fair CLR 13 12 94% 76.3 0.0
19 23:55 N 6 16.09 Fair CLR 13 13 100% 76.3 0.0
19 23:35 N 9 12.87 Fair CLR 0 0 0% 76.3 0.0
19 23:15 NW 9 14.48 Fair CLR 13 13 100% 76.3 0.0
19 22:55 NW 6 14.48 Fair CLR 13 13 100% 76.33 0.0
19 22:35 NW 9 14.48 Fair CLR 14 13 94% 76.3 0.0
19 22:15 NW 11 14.48 Fair CLR 14 13 94% 76.3 0.0
19 21:55 NW 13 12.87 Fair CLR 14 13 94% 76.3 0.0
19 21:35 N 11 14.48 Fair CLR 14 13 94% 76.3 0.0
19 21:15 NW 11 16.09 Fair CLR 16 12 77% 76.3 0.0
19 20:55 NW 11 16.09 Fair CLR 15 13 88% 76.3 0.0
19 20:35 NW 11 16.09 Fair CLR 15 13 88% 76.3 0.0
19 20:15 N 11 16.09 Fair CLR 16 13 83% 76.28 0.0
19 19:55 NW 19 16.09 Fair CLR 17 13 77% 76.28 0.0
19 19:35 NW 7 16.09 Fair CLR 21 13 60% 76.28 0.0
19 19:15 NW 11 16.09 Fair CLR 21 13 60% 76.28 0.0
19 18:55 NW 13 G 22 16.09 Fair CLR 21 13 60% 76.28 0.0
19 18:35 NW 22 16.09 Fair CLR 23 13 53% 76.28 0.0
19 18:15 NW 17 16.09 Fair CLR 23 13 53% 76.28 0.0
19 17:55 NW 19 16.09 Fair CLR 21 13 60% 76.28 0.0
19 17:35 NW 24 16.09 Fair CLR 21 14 64% 76.28 0.0
19 17:15 NW 22 16.09 Fair CLR 0 0 0% 76.28 0.0
19 16:55 NW 20 16.09 Fair CLR 21 14 64% 76.28 0.0
19 16:35 N 20 16.09 Fair CLR 22 13 57% 76.3 0.0
19 16:15 N 19 16.09 Fair CLR 23 11 47% 76.3 0.0
19 15:55 NW 22 16.09 Fair CLR 24 13 50% 25 76.33 0.0
19 15:35 NW 20 16.09 Fair CLR 25 13 47% 26 76.33 0.0
19 15:15 N 11 16.09 Fair CLR 0 0 0% 76.35 0.0
19 14:55 NW 19 14.48 Fair CLR 24 14 54% 25 76.38 0.0
19 14:35 NW 17 16.09 Fair CLR 23 15 61% 76.38 0.0
19 14:15 Vrbl 6 11.27 Fair CLR 23 17 69% 76.4 0.0
19 13:55 S 11 8.05 Fair with Haze CLR 22 17 73% 76.43 0.0
19 13:35 SE 6 14.48 Fair CLR 23 17 69% 76.45 0.0
19 13:15 Calm 14.48 Fair CLR 22 16 69% 76.45 0.0
19 12:55 Calm 16.09 Fair CLR 21 16 73% 76.48 0.0
19 12:35 NW 13 14.48 Fair CLR 19 16 83% 76.48 0.0
19 12:15 NW 19 14.48 Fair CLR 17 15 88% 76.5 0.0
19 11:55 NW 17 14.48 Fair CLR 16 15 94% 76.5 0.0
19 11:35 NW 15 16.09 Fair CLR 16 15 94% 76.53 0.0
19 11:15 NW 7 16.09 Fair CLR 16 15 94% 76.53 0.0
19 10:55 NW 9 14.48 Fair CLR 15 15 100% 76.53 0.0
19 10:35 NW 6 14.48 Fair CLR 15 14 94% 76.56 0.0
19 10:15 NW 13 16.09 Fair CLR 13 13 100% 76.56 0.0
19 09:55 Calm 14.48 Fair CLR 13 13 100% 76.53 0.0
19 09:35 Calm 12.87 Fair CLR 12 12 100% 76.53 0.0
19 09:15 Calm 14.48 Fair CLR 11 11 100% 76.53 0.0
19 08:55 NW 6 11.27 Mostly Cloudy BKN003 10 10 100% 76.53 0.0
19 08:35 NW 13 1.21 Fog/Mist OVC002 10 10 100% 8 76.53 0.0
19 08:15 Calm 14.48 Partly Cloudy SCT002 8 8 100% 76.5 0.0
19 07:55 Calm 3.22 Fog/Mist BKN003 7 7 100% 76.5 0.0
19 07:35 E 6 8.05 Fog/Mist OVC003 7 7 100% 76.5 0.0
19 07:15 N 6 0.40 Fog OVC002 9 9 100% 76.48 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)