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.
28 05:35 Calm 8.05 Fog/Mist OVC003 9 9 100% 76.2 0.0
28 05:15 E 9 9.66 Fog/Mist OVC003 9 9 100% 8 76.2 0.0
28 04:55 E 7 12.87 Overcast OVC003 9 9 100% 8 76.2 0.0
28 04:35 Calm 11.27 Overcast OVC005 9 8 94% 76.2 0.0
28 04:15 E 11 12.87 Overcast OVC005 9 8 94% 8 76.2 0.0
28 03:55 Calm 14.48 Overcast OVC005 9 8 94% 76.2 0.0
28 03:35 Calm 12.87 Overcast OVC005 8 8 100% 76.2 0.0
28 03:15 Calm 12.87 Overcast OVC006 7 7 100% 76.17 0.0
28 02:55 Calm 12.87 Overcast OVC007 7 7 100% 76.17 0.0
28 02:35 Calm 12.87 Mostly Cloudy BKN006 6 6 100% 76.17 0.0
28 02:15 Calm 14.48 Mostly Cloudy BKN006 6 6 100% 76.17 0.0
28 01:55 Calm 12.87 Mostly Cloudy BKN006 6 6 100% 76.17 0.0
28 01:35 Calm 12.87 Fair CLR 6 6 100% 76.17 0.0
28 01:15 Calm 14.48 A Few Clouds FEW004 7 6 93% 76.17 0.0
28 00:55 Calm 12.87 Mostly Cloudy BKN004 7 7 100% 76.15 0.0
28 00:35 Calm 11.27 Mostly Cloudy BKN003 8 8 100% 76.15 0.0
28 00:15 Calm 9.66 Fog/Mist FEW003 7 7 100% 76.17 0.0
27 23:55 Calm 9.66 Fog/Mist FEW003 8 8 100% 76.17 0.0
27 23:35 N 6 11.27 A Few Clouds FEW003 9 9 100% 76.15 0.0
27 23:15 Calm 8.05 Fog/Mist CLR 9 9 100% 76.15 0.0
27 22:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.15 0.0
27 22:35 Calm 8.05 Fog/Mist CLR 11 11 100% 76.15 0.0
27 22:15 Calm 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
27 21:55 NW 6 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
27 21:35 NW 7 8.05 Fog/Mist CLR 11 11 100% 76.12 0.0
27 21:15 Calm 8.05 Fog/Mist CLR 11 11 100% 76.12 0.0
27 20:55 Calm 8.05 Fog/Mist FEW003 12 12 100% 76.1 0.0
27 20:35 Calm 6.44 Fog/Mist FEW003 13 13 100% 76.1 0.0
27 20:15 S 7 8.05 Fog/Mist CLR 12 12 100% 76.1 0.0
27 19:55 S 9 6.44 Fog/Mist CLR 12 12 100% 76.07 0.0
27 19:35 S 9 4.83 Fog/Mist CLR 13 12 94% 76.07 0.0
27 19:15 Calm 16.09 Fair CLR 17 6 49% 76.07 0.0
27 18:55 N 17 16.09 Fair CLR 18 3 37% 76.05 0.0
27 18:35 N 13 G 24 16.09 Fair CLR 18 5 43% 76.05 0.0
27 18:15 N 24 G 33 14.48 Fair CLR 18 6 46% 76.05 0.0
27 17:55 NW 22 11.27 Fair CLR 0 0 0% 76.05 0.0
27 17:35 NW 22 14.48 Fair CLR 17 10 64% 76.05 0.0
27 17:15 NW 24 12.87 Fair CLR 18 10 60% 76.05 0.0
27 16:55 NW 28 14.48 Fair CLR 18 10 60% 76.05 0.0
27 16:35 N 24 G 33 12.87 Fair CLR 18 11 64% 76.05 0.0
27 16:15 NW 28 14.48 Fair CLR 18 11 64% 76.05 0.0
27 15:55 NW 24 14.48 Fair CLR 18 11 64% 76.05 0.0
27 15:35 NW 26 12.87 Fair CLR 20 10 53% 76.05 0.0
27 15:15 NW 22 14.48 Fair CLR 20 11 56% 76.02 0.0
27 14:55 NW 19 11.27 Fair CLR 20 13 64% 76.05 0.0
27 14:35 NW 19 9.66 Fair with Haze CLR 20 14 69% 76.07 0.0
27 14:15 NW 9 11.27 Fair CLR 20 13 64% 76.1 0.0
27 13:55 NW 9 12.87 Fair CLR 21 13 60% 76.1 0.0
27 13:35 NW 15 12.87 Fair CLR 21 13 60% 76.12 0.0
27 13:15 Calm 16.09 Fair CLR 23 4 29% 76.12 0.0
27 12:55 S 9 14.48 Fair CLR 23 4 29% 76.12 0.0
27 12:35 SW 7 16.09 Fair CLR 23 4 29% 76.12 0.0
27 12:15 Vrbl 6 16.09 Fair CLR 23 2 25% 76.12 0.0
27 11:55 NE 19 16.09 Fair CLR 24 -2 18% 24 76.12 0.0
27 11:35 NE 15 G 31 16.09 Fair CLR 25 -2 17% 25 76.12 0.0
27 11:15 Vrbl 9 G 19 16.09 Fair CLR 22 6 36% 76.12 0.0
27 10:55 NW 13 12.87 Fair CLR 19 12 64% 76.15 0.0
27 10:35 NW 13 12.87 Fair CLR 19 10 56% 76.12 0.0
27 10:15 Vrbl 7 16.09 Fair CLR 21 8 43% 76.12 0.0
27 09:55 Calm 8.05 Fair with Haze CLR 17 13 77% 76.12 0.0
27 09:35 W 11 6.44 Fog/Mist CLR 15 13 88% 76.12 0.0
27 09:15 NW 9 9.66 Fair with Haze CLR 17 13 77% 76.12 0.0
27 08:55 Calm 14.48 Fair CLR 15 13 88% 76.12 0.0
27 08:35 Calm 14.48 Fair CLR 13 11 88% 76.1 0.0
27 08:15 Calm 12.87 Fair CLR 11 10 94% 76.12 0.0
27 07:55 Calm 9.66 Fog/Mist CLR 9 9 100% 76.12 0.0
27 07:35 Calm 6.44 Fog/Mist CLR 7 7 100% 76.12 0.0
27 07:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.1 0.0
27 06:55 Calm 12.87 Fair CLR 8 8 100% 76.1 0.0
27 06:35 Calm 14.48 Fair CLR 8 8 100% 76.1 0.0
27 06:15 Calm 8.05 Fog/Mist CLR 8 8 100% 76.1 0.0
27 05:55 NW 6 14.48 Fair CLR 8 8 100% 76.1 0.0
27 05:35 Calm 11.27 Fair CLR 8 8 100% 76.1 0.0
27 05:15 Calm 8.05 Fog/Mist CLR 9 9 100% 76.1 0.0
27 04:55 N 13 4.83 Fair CLR 0 0 0% 76.1 0.0
27 04:35 NW 13 9.66 Fog/Mist CLR 9 9 100% 7 76.07 0.0
27 04:15 Calm 14.48 Fair CLR 7 7 100% 76.1 0.0
27 03:55 Calm 11.27 Fair CLR 0 0 0% 76.1 0.0
27 03:35 Calm 14.48 Fair CLR 7 7 100% 76.12 0.0
27 03:15 Calm 12.87 Fair CLR 7 7 100% 76.12 0.0
27 02:55 Calm 11.27 Fair CLR 8 8 100% 76.12 0.0
27 02:35 Calm 11.27 Fair CLR 8 8 100% 76.12 0.0
27 02:15 Calm 11.27 Fair CLR 8 8 100% 76.12 0.0
27 01:55 Calm 11.27 Fair CLR 8 8 100% 76.12 0.0
27 01:35 Calm 12.87 Fair CLR 8 8 100% 76.15 0.0
27 01:15 Calm 9.66 Fog/Mist CLR 9 8 94% 76.15 0.0
27 00:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.15 0.0
27 00:35 NW 9 6.44 Fog/Mist CLR 11 10 94% 76.15 0.0
27 00:15 NW 9 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
26 23:55 NW 13 8.05 Fog/Mist CLR 11 11 100% 76.15 0.0
26 23:35 NW 13 8.05 Fair CLR 0 0 0% 76.15 0.0
26 23:15 NW 7 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
26 22:55 NW 11 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
26 22:35 NW 13 8.05 Fog/Mist CLR 12 11 94% 76.17 0.0
26 22:15 N 11 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
26 21:55 N 11 8.05 Fog/Mist CLR 12 11 94% 76.2 0.0
26 21:35 NW 9 9.66 Fog/Mist CLR 11 11 100% 76.2 0.0
26 21:15 NW 11 9.66 Fog/Mist CLR 11 11 100% 76.2 0.0
26 20:55 NW 17 9.66 Fog/Mist CLR 12 11 94% 76.2 0.0
26 20:35 NW 22 11.27 Fair CLR 0 0 0% 76.2 0.0
26 20:15 NW 20 9.66 Fair with Haze CLR 12 10 88% 76.2 0.0
26 19:55 NW 19 11.27 Fair CLR 13 10 82% 76.2 0.0
26 19:35 NW 20 11.27 Fair CLR 13 9 77% 76.2 0.0
26 19:15 NW 19 14.48 Fair CLR 15 7 59% 76.2 0.0
26 18:55 NW 22 14.48 Fair CLR 15 7 59% 76.2 0.0
26 18:35 NW 19 12.87 Fair CLR 0 0 0% 76.2 0.0
26 18:15 NW 22 14.48 Fair CLR 15 8 63% 76.2 0.0
26 17:55 NW 24 14.48 Fair CLR 16 8 59% 76.23 0.0
26 17:35 NW 24 16.09 Fair CLR 17 5 45% 76.23 0.0
26 17:15 NW 26 16.09 Fair CLR 17 6 49% 76.23 0.0
26 16:55 NW 26 14.48 Fair CLR 17 6 49% 76.23 0.0
26 16:35 N 33 14.48 Fair and Breezy CLR 16 8 59% 76.25 0.0
26 16:15 NW 31 16.09 Fair CLR 17 9 60% 76.25 0.0
26 15:55 NW 30 14.48 Fair CLR 16 9 63% 76.28 0.0
26 15:35 NW 30 14.48 Fair CLR 16 10 68% 76.28 0.0
26 15:15 NW 31 12.87 Fair CLR 16 10 68% 76.3 0.0
26 14:55 N 31 G 41 14.48 Fair CLR 15 11 77% 76.3 0.0
26 14:35 N 33 14.48 Fair and Breezy CLR 16 10 68% 76.33 0.0
26 14:15 NW 28 G 37 14.48 Fair CLR 16 11 72% 76.35 0.0
26 13:55 NW 30 14.48 Fair CLR 16 12 77% 76.35 0.0
26 13:35 NW 30 14.48 Fair CLR 16 11 72% 76.38 0.0
26 13:15 N 28 12.87 Fair CLR 16 12 77% 76.38 0.0
26 12:55 NW 19 11.27 Fair CLR 18 12 68% 76.4 0.0
26 12:35 N 15 12.87 Fair CLR 18 12 68% 76.4 0.0
26 12:15 Vrbl 9 G 24 14.48 Fair CLR 18 12 68% 76.43 0.0
26 11:55 N 17 11.27 Fair CLR 0 0 0% 76.43 0.0
26 11:35 NW 22 9.66 Fair with Haze CLR 16 12 77% 76.43 0.0
26 11:15 NW 28 6.44 Fair with Haze CLR 15 13 88% 76.43 0.0
26 10:55 NW 19 8.05 Fair with Haze CLR 15 12 82% 76.43 0.0
26 10:35 NW 20 6.44 Fair with Haze CLR 14 12 88% 76.43 0.0
26 10:15 NW 20 6.44 Fog/Mist CLR 14 12 88% 76.43 0.0
26 09:55 NW 24 6.44 Fog/Mist CLR 13 12 94% 76.4 0.0
26 09:35 NW 7 4.83 Fog/Mist CLR 12 11 94% 76.43 0.0
26 09:15 NW 15 4.02 Fog/Mist CLR 11 11 100% 76.43 0.0
26 08:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.43 0.0
26 08:35 Calm 9.66 Fog/Mist CLR 9 9 100% 76.43 0.0
26 08:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.45 0.0
26 07:55 Calm 8.05 Fair CLR 0 0 0% 76.45 0.0
26 07:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.45 0.0
26 07:15 NE 7 9.66 Fog/Mist FEW013 5 5 100% 4 76.43 0.0
26 06:55 E 6 11.27 Mostly Cloudy BKN013 5 5 100% 76.43 0.0
26 06:35 Calm 9.66 Fog/Mist OVC013 6 6 100% 76.4 0.0
26 06:15 E 6 9.66 Fog/Mist OVC014 6 6 100% 76.4 0.0
26 05:55 Calm 9.66 Fog/Mist BKN014 7 7 100% 76.43 0.0
26 05:35 E 7 9.66 A Few Clouds FEW013 0 0 0% 76.43 0.0
26 05:15 N 9 8.05 Fog/Mist CLR 10 9 94% 9 76.4 0.0
26 04:55 N 9 8.05 Fog/Mist FEW013 9 9 100% 8 76.4 0.0
26 04:35 N 13 9.66 Fog/Mist FEW013 10 9 94% 8 76.4 0.0
26 04:15 N 11 9.66 Fog/Mist CLR 10 10 100% 9 76.4 0.0
26 03:55 N 13 9.66 Fair CLR 0 0 0% 76.43 0.0
26 03:35 N 7 8.05 Fog/Mist FEW013 10 10 100% 9 76.45 0.0
26 03:15 N 9 8.05 Fog/Mist CLR 8 8 100% 7 76.45 0.0
26 02:55 Calm 8.05 Fog/Mist SCT011 BKN020 7 7 100% 76.48 0.0
26 02:15 Calm 8.05 Fog/Mist BKN012 BKN019 9 9 100% 76.48 0.0
26 01:55 NW 9 8.05 Fog/Mist SCT013 10 10 100% 9 76.48 0.0
26 01:35 N 11 8.05 Fog/Mist SCT013 10 10 100% 9 76.48 0.0
26 01:15 N 7 8.05 Fog/Mist FEW013 10 10 100% 9 76.48 0.0
26 00:55 N 11 G 22 8.05 Fog/Mist FEW013 11 11 100% 76.48 0.0
26 00:35 N 15 8.05 Fog/Mist FEW013 11 11 100% 76.45 0.0
26 00:15 N 13 8.05 Fog/Mist FEW012 11 11 100% 76.45 0.0
25 23:55 N 24 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 23:35 N 24 G 39 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 23:15 N 30 G 39 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 22:55 N 26 G 37 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 22:35 NW 31 G 41 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 22:15 N 22 G 31 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 21:55 N 22 G 31 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 21:35 N 22 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 21:15 NW 22 9.66 Fog/Mist CLR 12 10 88% 76.43 0.0
25 20:55 NW 22 9.66 Fog/Mist CLR 11 10 94% 76.4 0.0
25 20:35 NW 26 11.27 Fair CLR 12 10 88% 76.4 0.0
25 20:15 NW 26 9.66 Fog/Mist CLR 12 10 88% 76.4 0.0
25 19:55 NW 26 9.66 Fog/Mist CLR 12 11 94% 76.38 0.0
25 19:35 NW 26 8.05 Fog/Mist CLR 12 11 94% 76.38 0.0
25 19:15 NW 28 8.05 Fog/Mist CLR 12 11 94% 76.38 0.0
25 18:55 NW 30 G 39 9.66 Fog/Mist CLR 13 12 94% 76.38 0.0
25 18:35 NW 28 G 37 9.66 Fog/Mist CLR 13 12 94% 76.38 0.0
25 18:15 N 24 G 37 9.66 Fog/Mist CLR 13 12 94% 76.38 0.0
25 17:55 N 28 9.66 Fog/Mist CLR 14 12 88% 76.38 0.0
25 17:35 N 33 G 44 11.27 Fair and Breezy CLR 14 12 88% 76.38 0.0
25 17:15 NW 30 G 43 11.27 Fair CLR 14 13 94% 76.4 0.0
25 16:55 NW 31 12.87 Fair CLR 14 13 94% 76.38 0.0
25 16:35 N 30 G 41 12.87 A Few Clouds FEW007 14 13 94% 76.4 0.0
25 16:15 N 30 G 43 11.27 Mostly Cloudy BKN006 14 13 94% 76.4 0.0
25 15:55 NW 31 G 46 11.27 Mostly Cloudy BKN005 14 14 100% 76.4 0.0
25 15:35 NW 35 G 44 11.27 Mostly Cloudy and Breezy BKN004 0 0 0% 76.38 0.0
25 15:15 NW 28 G 41 14.48 Overcast OVC004 15 14 94% 76.4 0.0
25 14:55 N 31 14.48 Mostly Cloudy BKN005 15 14 94% 76.4 0.0
25 14:35 N 22 G 33 14.48 A Few Clouds FEW005 15 15 100% 76.43 0.0
25 14:15 NW 26 14.48 Fair CLR 16 15 94% 76.43 0.0
25 13:55 NW 30 14.48 Fair CLR 16 15 94% 76.43 0.0
25 13:35 N 28 G 39 14.48 Fair CLR 16 15 94% 76.43 0.0
25 13:15 N 24 16.09 Fair CLR 17 15 88% 76.45 0.0
25 12:55 NW 26 G 37 14.48 Fair CLR 0 0 0% 76.45 0.0
25 12:35 N 26 G 35 16.09 Fair CLR 16 15 94% 76.48 0.0
25 12:15 N 19 14.48 Fair CLR 15 14 94% 76.48 0.0
25 11:55 NW 19 16.09 Fair CLR 15 14 94% 76.5 0.0
25 11:35 NW 15 16.09 Fair CLR 15 13 88% 76.48 0.0
25 11:15 NW 15 16.09 Fair CLR 15 13 88% 76.48 0.0
25 10:55 NW 13 16.09 Fair CLR 15 13 88% 76.5 0.0
25 10:35 NW 15 16.09 Fair CLR 14 13 94% 76.48 0.0
25 10:15 NW 11 14.48 Fair CLR 14 13 94% 76.48 0.0
25 09:55 NW 13 16.09 Fair CLR 14 13 94% 76.48 0.0
25 09:35 NW 15 14.48 Fair CLR 13 13 100% 76.48 0.0
25 09:15 NW 19 14.48 A Few Clouds FEW008 13 13 100% 76.48 0.0
25 08:55 NW 13 14.48 Fair CLR 13 13 100% 76.48 0.0
25 08:35 NW 17 14.48 A Few Clouds FEW007 12 12 100% 76.48 0.0
25 08:15 N 15 16.09 A Few Clouds FEW007 12 12 100% 76.45 0.0
25 07:55 N 17 16.09 Mostly Cloudy BKN008 12 12 100% 76.45 0.0
25 07:35 N 11 14.48 Mostly Cloudy BKN008 11 11 100% 76.45 0.0
25 07:15 N 17 14.48 Mostly Cloudy BKN007 0 0 0% 76.43 0.0
25 06:55 N 17 14.48 Overcast OVC005 11 11 100% 76.43 0.0
25 06:35 NW 15 G 24 14.48 Overcast OVC004 11 11 100% 76.4 0.0
25 06:15 Vrbl 6 6.44 Fog/Mist BKN002 10 10 100% 76.4 0.0
25 05:55 Vrbl 9 16.09 A Few Clouds FEW003 9 8 94% 8 76.38 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)