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.
01 04:15 Vrbl 7 4.83 Fog/Mist OVC003 14 14 100% 75.95 0.0
01 03:55 S 11 G 20 6.44 Fog/Mist OVC003 14 14 100% 75.95 0.0
01 03:35 SW 13 G 22 6.44 Fog/Mist BKN004 OVC008 14 14 100% 75.95 0.0
01 03:15 S 15 G 24 6.44 Fog/Mist OVC007 14 14 100% 75.95 0.0
01 02:55 S 19 8.05 Fog/Mist SCT009 BKN019 OVC042 14 14 100% 75.95 0.0
01 02:35 S 19 9.66 Fog/Mist BKN015 OVC019 14 14 100% 75.95 0.0
01 02:15 S 19 9.66 Fog/Mist OVC014 14 14 100% 75.97 0.0
01 01:55 S 17 G 26 9.66 Fog/Mist BKN010 OVC015 14 14 100% 75.97 0.0
01 01:35 Calm 9.66 Fog/Mist BKN009 OVC014 14 14 100% 76 0.0
01 01:15 Calm 11.27 Overcast BKN010 OVC013 14 14 100% 76 0.0
01 00:55 Calm 11.27 Overcast BKN011 BKN020 OVC027 14 14 100% 76 0.0
01 00:35 Calm 11.27 Overcast FEW011 OVC029 14 14 100% 76 0.0
01 00:15 Calm 14.48 Overcast FEW011 OVC027 14 14 100% 76 0.0
31 23:55 S 11 12.87 Overcast OVC024 14 14 100% 76 0.0
31 23:35 S 7 11.27 Overcast FEW018 BKN023 OVC075 13 13 100% 76 0.0
31 23:15 S 6 11.27 Overcast SCT013 OVC075 13 13 100% 75.97 0.0
31 22:55 SE 9 11.27 Overcast BKN013 BKN041 OVC080 14 14 100% 75.97 0.0
31 22:35 S 9 11.27 Overcast SCT040 OVC075 14 14 100% 76 0.0
31 22:15 SE 13 9.66 Fog/Mist BKN036 OVC075 14 14 100% 75.97 0.0
31 21:55 S 13 11.27 Overcast OVC033 14 14 100% 75.97 0.0
31 21:35 SE 17 G 26 9.66 Fog/Mist BKN032 BKN060 OVC085 14 14 100% 75.95 0.0
31 21:15 SE 19 11.27 Overcast FEW009 BKN065 OVC085 14 14 100% 75.95 0.0
31 20:55 S 15 9.66 Fog/Mist BKN009 BKN034 OVC065 14 14 100% 75.95 0.0
31 20:35 SE 13 9.66 Fog/Mist BKN009 OVC035 14 14 100% 75.92 0.0
31 20:15 SE 13 8.05 Fog/Mist SCT012 OVC037 14 14 100% 75.92 0.0
31 19:55 SE 15 9.66 Fog/Mist BKN013 OVC080 14 14 100% 75.92 0.0
31 19:35 SE 9 8.05 Fog/Mist OVC075 14 14 100% 75.92 0.0
31 19:15 SE 7 8.05 Fog/Mist SCT014 SCT027 OVC080 14 14 100% 75.92 0.0
31 18:55 S 7 6.44 Fog/Mist BKN013 OVC027 14 14 100% 75.92 0.0
31 18:35 SE 9 6.44 Fog/Mist BKN014 OVC026 14 14 100% 75.95 0.0
31 18:15 Calm 6.44 Fog/Mist BKN015 OVC026 0 0 0% 0 0.0
31 17:55 SE 11 6.44 Fog/Mist FEW008 BKN015 BKN023 14 14 100% 75.92 0.0 0.05
31 17:35 SE 13 4.83 Fog/Mist FEW008 FEW013 SCT030 14 14 100% 75.95 0.0
31 17:15 SE 11 3.22 Light Rain Fog/Mist FEW013 BKN030 14 14 100% 75.95 0.0
31 16:55 SE 9 3.22 Fog/Mist FEW009 SCT013 BKN031 14 14 100% 75.97 0.0 0.08
31 16:35 S 11 3.22 Light Rain Fog/Mist BKN009 BKN013 14 14 100% 76 0.0
31 16:15 S 11 9.66 Fog/Mist OVC010 14 14 100% 76 0.0
31 15:55 S 11 9.66 Fog/Mist BKN010 OVC046 14 14 100% 76 0.0
31 15:35 S 19 11.27 Overcast OVC045 14 14 100% 76 0.0
31 15:15 S 19 9.66 Fog/Mist OVC044 15 14 94% 76 0.0
31 14:55 SW 19 G 35 12.87 Overcast OVC044 15 14 94% 76 0.0
31 14:35 S 24 12.87 Overcast OVC046 15 14 94% 76 0.0
31 14:15 S 22 G 31 12.87 Overcast SCT046 SCT055 OVC085 15 14 94% 76.02 0.0
31 13:55 S 20 12.87 Mostly Cloudy FEW060 BKN085 16 15 94% 76.02 0.0
31 13:35 S 20 G 30 11.27 Partly Cloudy FEW045 SCT065 SCT100 16 15 94% 75.97 0.0
31 13:15 S 26 G 35 9.66 Fog/Mist BKN043 16 15 94% 76.02 0.0
31 12:55 S 22 9.66 Mostly Cloudy BKN042 BKN090 0 0 0% 76.05 0.0
31 12:35 S 15 G 24 11.27 A Few Clouds FEW090 15 15 100% 76.05 0.0
31 12:15 SW 13 14.48 Fair CLR 16 15 94% 76 0.0
31 11:55 Calm 11.27 A Few Clouds FEW090 16 15 94% 75.97 0.0
31 11:35 SW 9 12.87 Partly Cloudy SCT090 0 0 0% 75.97 0.0
31 11:15 W 11 12.87 Partly Cloudy SCT085 15 15 100% 75.95 0.0
31 10:55 N 7 14.48 Overcast OVC085 15 15 100% 75.95 0.0
31 10:35 NW 7 12.87 Mostly Cloudy BKN085 0 0 0% 75.95 0.0
31 10:15 W 7 12.87 A Few Clouds FEW090 16 16 100% 75.92 0.0
31 09:35 NW 11 11.27 Fair CLR 15 15 100% 75.9 0.0
31 09:15 Calm 8.05 Fog/Mist CLR 14 14 100% 75.87 0.0
31 08:55 Calm 12.87 A Few Clouds FEW080 FEW090 0 0 0% 75.9 0.0
31 08:35 NE 11 9.66 Fog/Mist BKN085 14 14 100% 75.9 0.0
31 08:15 SE 11 11.27 Mostly Cloudy BKN095 14 14 100% 75.95 0.0
31 07:55 S 11 8.05 Fog/Mist BKN095 14 14 100% 75.97 0.0
31 07:35 SE 9 6.44 Fog/Mist FEW008 SCT055 BKN095 14 14 100% 75.92 0.0
31 07:15 SE 7 G 20 8.05 Fog/Mist BKN007 BKN060 OVC075 14 14 100% 75.95 0.0
31 06:55 SE 24 G 33 4.02 Light Rain Fog/Mist BKN007 BKN033 OVC075 14 14 100% 75.92 0.0 0.13
31 06:15 SE 22 4.02 Fog/Mist BKN009 BKN013 OVC020 14 14 100% 75.97 0.0
31 05:55 S 20 G 35 9.66 Fog/Mist BKN011 BKN024 OVC060 14 14 100% 76.02 0.0
31 05:35 SW 13 G 31 12.87 Overcast FEW025 SCT080 OVC100 14 14 100% 76.02 0.0
31 05:15 SE 11 14.48 Overcast BKN100 OVC120 14 14 100% 75.9 0.0
31 04:55 SE 11 12.87 Overcast OVC110 14 14 100% 75.9 0.0
31 04:35 SE 13 11.27 Overcast FEW017 FEW090 OVC120 14 14 100% 75.92 0.0
31 04:15 SE 13 12.87 Overcast FEW018 BKN022 OVC120 14 14 100% 75.95 0.0
31 03:55 S 13 11.27 Overcast OVC021 14 14 100% 76 0.0
31 03:35 S 15 12.87 Overcast OVC021 14 14 100% 75.97 0.0
31 03:15 SE 19 11.27 Overcast FEW016 OVC021 14 14 100% 75.97 0.0
31 02:55 SE 19 11.27 Overcast OVC020 14 14 100% 75.97 0.0
31 02:35 S 19 11.27 Overcast OVC022 14 14 100% 76.02 0.0
31 02:15 S 22 11.27 Overcast SCT011 OVC020 14 14 100% 76.02 0.0
31 01:55 S 19 11.27 Overcast BKN013 OVC018 14 14 100% 76.05 0.0
31 01:35 S 20 12.87 Mostly Cloudy SCT013 BKN017 BKN110 14 14 100% 76.05 0.0
31 01:15 S 20 11.27 Overcast BKN011 OVC015 14 14 100% 76.05 0.0
31 00:55 S 22 11.27 Overcast OVC012 14 14 100% 76.05 0.0
31 00:35 S 20 9.66 Fog/Mist OVC012 14 14 100% 76.05 0.0
31 00:15 SE 20 9.66 Fog/Mist BKN009 OVC013 14 14 100% 76.02 0.0
30 23:55 SE 19 11.27 Overcast OVC009 14 14 100% 76.07 0.0
30 23:35 SE 15 9.66 Fog/Mist BKN009 BKN110 14 14 100% 76.05 0.0
30 23:15 SE 15 11.27 Partly Cloudy FEW009 SCT110 14 14 100% 76.05 0.0
30 22:55 SE 11 12.87 A Few Clouds FEW110 14 14 100% 76.02 0.0
30 22:35 S 9 14.48 Fair CLR 14 14 100% 76 0.0
30 22:15 Calm 14.48 Fair CLR 0 0 0% 75.95 0.0
30 21:55 SE 9 G 22 12.87 Fair CLR 14 14 100% 75.97 0.0
30 21:35 SE 13 12.87 A Few Clouds FEW120 14 14 100% 76 0.0
30 21:15 SE 13 11.27 Fair CLR 14 14 100% 76.02 0.0
30 20:55 SE 15 G 28 12.87 A Few Clouds FEW011 14 14 100% 76 0.0
30 20:35 SE 17 G 31 14.48 Partly Cloudy SCT010 14 14 100% 76 0.0
30 20:15 SE 7 14.48 Mostly Cloudy BKN010 14 14 100% 76.02 0.0
30 19:55 SE 11 G 24 14.48 Partly Cloudy SCT010 14 14 100% 75.95 0.0
30 19:35 SE 17 14.48 A Few Clouds FEW010 14 14 100% 75.97 0.0
30 19:15 S 11 12.87 Fair CLR 14 14 100% 76.02 0.0
30 18:55 SE 13 12.87 Fair CLR 14 14 100% 76 0.0
30 18:35 SE 17 12.87 Fair CLR 14 14 100% 76 0.0
30 18:15 SE 13 12.87 Fair CLR 14 14 100% 76.02 0.0
30 17:55 SE 15 12.87 Fair CLR 14 14 100% 76.05 0.0
30 17:35 SE 19 12.87 Fair CLR 14 14 100% 76.02 0.0
30 17:15 S 15 14.48 A Few Clouds FEW004 14 14 100% 76.05 0.0
30 16:55 SE 15 11.27 Partly Cloudy SCT004 14 14 100% 76.02 0.0
30 16:35 S 19 11.27 Partly Cloudy SCT004 SCT007 14 14 100% 76.05 0.0
30 16:15 SE 20 14.48 Mostly Cloudy BKN005 15 15 100% 76.05 0.0
30 15:55 SE 19 14.48 Overcast OVC005 15 15 100% 76.1 0.0
30 15:35 SE 19 16.09 Mostly Cloudy BKN008 BKN012 15 15 100% 76.1 0.0
30 15:15 S 13 G 24 16.09 Partly Cloudy SCT012 16 14 88% 76.12 0.0
30 14:55 SE 11 16.09 Fair CLR 16 14 88% 76.12 0.0
30 14:35 SE 13 14.48 Fair CLR 16 14 88% 76.1 0.0
30 14:15 S 7 16.09 Fair CLR 0 0 0% 76.1 0.0
30 13:55 Vrbl 6 16.09 Fair CLR 16 14 88% 76.1 0.0
30 13:35 S 9 14.48 Fair CLR 16 14 88% 76.07 0.0
30 13:15 S 13 16.09 Fair CLR 16 14 88% 76.07 0.0
30 12:55 S 13 16.09 Fair CLR 0 0 0% 76.1 0.0
30 12:35 SE 13 14.48 Fair CLR 17 13 77% 76.1 0.0
30 12:15 S 13 14.48 Fair CLR 18 12 68% 76.07 0.0
30 11:55 SE 7 16.09 Fair CLR 18 12 68% 76.05 0.0
30 11:35 SE 9 16.09 Fair CLR 18 11 64% 76.05 0.0
30 11:15 SE 13 14.48 Fair CLR 17 11 68% 76.05 0.0
30 10:55 SE 11 14.48 Fair CLR 15 14 94% 76.05 0.0
30 10:35 S 13 14.48 Fair CLR 17 14 83% 76.05 0.0
30 10:15 Calm 16.09 Fair CLR 17 14 83% 76.05 0.0
30 09:55 W 6 14.48 Fair CLR 16 14 88% 76.05 0.0
30 09:35 NW 7 12.87 Fair CLR 15 14 94% 76.02 0.0
30 09:15 Calm 14.48 Fair CLR 16 14 88% 76.02 0.0
30 08:55 Calm 14.48 Fair CLR 14 12 88% 76 0.0
30 08:35 NE 6 14.48 Fair CLR 13 11 88% 76.02 0.0
30 08:15 Calm 14.48 Fair CLR 12 11 94% 76 0.0
30 07:55 Calm 14.48 Fair CLR 11 10 94% 75.97 0.0
30 07:35 SE 9 14.48 Fair CLR 9 9 100% 8 76.02 0.0
30 07:15 Calm 14.48 Fair CLR 9 8 94% 76 0.0
30 06:35 Calm 16.09 Fair CLR 9 7 87% 75.95 0.0
30 06:15 Calm 16.09 Fair CLR 9 7 87% 75.95 0.0
30 05:55 Calm 16.09 Fair CLR 10 7 82% 75.92 0.0
30 05:35 Calm 16.09 Fair CLR 10 7 82% 75.92 0.0
30 05:15 Calm 16.09 Fair CLR 11 7 77% 75.92 0.0
30 04:55 Calm 16.09 Fair CLR 11 7 77% 75.92 0.0
30 04:35 Calm 16.09 Fair CLR 11 7 77% 75.92 0.0
30 04:15 SE 6 16.09 Fair CLR 11 8 82% 75.95 0.0
30 03:55 Calm 16.09 Fair CLR 0 0 0% 75.95 0.0
30 03:35 Calm 16.09 Fair CLR 10 7 82% 75.95 0.0
30 03:15 Calm 16.09 Fair CLR 9 7 87% 75.97 0.0
30 02:55 Calm 16.09 Fair CLR 10 6 76% 75.97 0.0
30 02:35 Calm 16.09 Fair CLR 9 8 94% 75.97 0.0
30 02:15 Calm 16.09 Fair CLR 10 8 88% 75.95 0.0
30 01:55 Calm 16.09 Fair CLR 11 6 72% 75.97 0.0
30 01:35 Calm 16.09 Fair CLR 10 6 76% 75.97 0.0
30 01:15 Calm 16.09 Fair CLR 10 7 82% 76 0.0
30 00:55 Calm 16.09 Fair CLR 10 8 88% 76 0.0
30 00:35 Calm 16.09 Fair CLR 10 8 88% 76 0.0
30 00:15 Calm 16.09 Fair CLR 11 7 77% 76 0.0
29 23:55 Calm 16.09 Fair CLR 10 8 88% 76 0.0
29 23:35 Calm 16.09 Fair CLR 11 7 77% 76 0.0
29 23:15 Calm 16.09 Fair CLR 12 7 72% 76 0.0
29 22:55 NW 6 16.09 Fair CLR 0 0 0% 76.02 0.0
29 22:35 Calm 16.09 Fair CLR 11 9 88% 76.02 0.0
29 22:15 Calm 16.09 Fair CLR 11 8 82% 76.02 0.0
29 21:55 Calm 16.09 Fair CLR 13 6 63% 76.05 0.0
29 21:35 Calm 14.48 Fair CLR 0 0 0% 76.02 0.0
29 21:15 Calm 16.09 Fair CLR 13 7 67% 76.02 0.0
29 20:55 Calm 16.09 Fair CLR 14 8 67% 76 0.0
29 20:35 Calm 16.09 Fair CLR 14 9 72% 76 0.0
29 20:15 E 7 16.09 Fair CLR 16 8 59% 75.97 0.0
29 19:55 Calm 16.09 Fair CLR 16 8 59% 76 0.0
29 19:35 NW 19 14.48 Fair CLR 16 10 68% 76 0.0
29 19:15 NW 15 14.48 Fair CLR 17 10 64% 76 0.0
29 18:55 NW 28 14.48 Fair CLR 18 11 64% 76 0.0
29 18:35 NW 19 16.09 Fair CLR 20 9 49% 76 0.0
29 18:15 NW 17 16.09 Fair CLR 20 8 46% 76 0.0
29 17:55 NW 20 14.48 Fair CLR 21 9 46% 76 0.0
29 17:35 NW 19 14.48 Fair CLR 22 7 38% 76 0.0
29 16:55 NW 20 16.09 Fair CLR 23 7 36% 76 0.0
29 16:35 NW 19 16.09 Fair CLR 23 6 33% 76.02 0.0
29 16:15 NW 20 16.09 Fair CLR 22 10 47% 76.02 0.0
29 15:55 NW 19 14.48 Fair CLR 21 12 57% 76.02 0.0
29 15:35 NW 20 14.48 Fair CLR 21 13 60% 76.05 0.0
29 15:15 NW 20 16.09 Fair CLR 22 11 50% 76.07 0.0
29 14:55 NW 22 14.48 Fair CLR 22 11 50% 76.1 0.0
29 14:35 NW 24 16.09 Fair CLR 23 10 44% 76.1 0.0
29 14:15 NW 28 14.48 Fair CLR 22 12 53% 76.1 0.0
29 13:55 NW 19 14.48 Fair CLR 21 15 69% 76.12 0.0
29 13:35 NW 22 11.27 Fair CLR 20 16 78% 76.15 0.0
29 13:15 NW 19 11.27 Fair CLR 20 16 78% 76.15 0.0
29 12:55 Vrbl 7 11.27 Fair CLR 21 15 69% 76.15 0.0
29 12:35 NW 9 G 19 8.05 Fair with Haze CLR 20 15 73% 76.15 0.0
29 12:15 NW 9 9.66 Fair with Haze CLR 21 15 69% 76.17 0.0
29 11:55 NW 9 9.66 Fair with Haze CLR 20 15 73% 76.17 0.0
29 11:35 Calm 11.27 Fair CLR 19 14 73% 76.17 0.0
29 11:15 W 11 8.05 Fair with Haze CLR 17 14 83% 76.2 0.0
29 10:55 W 11 6.44 Fair with Haze CLR 18 14 78% 76.17 0.0
29 10:35 NW 9 6.44 Fair with Haze CLR 18 15 83% 76.17 0.0
29 10:15 NW 6 6.44 Fair with Haze CLR 19 15 78% 76.15 0.0
29 09:55 Calm 12.87 Fair CLR 18 14 78% 76.12 0.0
29 09:35 Calm 11.27 Fair CLR 0 0 0% 76.15 0.0
29 09:15 Calm 11.27 Fair CLR 15 13 88% 76.15 0.0
29 08:55 Calm 8.05 Fog/Mist CLR 14 13 94% 76.15 0.0
29 08:35 Calm 12.87 Fair CLR 12 12 100% 76.15 0.0
29 08:15 Calm 11.27 Fair CLR 10 10 100% 76.15 0.0
29 07:55 Calm 14.48 Fair CLR 9 9 100% 76.15 0.0
29 07:35 Calm 12.87 Fair CLR 7 7 100% 76.12 0.0
29 07:15 Calm 12.87 Fair CLR 7 7 100% 76.12 0.0
29 06:55 Calm 12.87 Fair CLR 7 7 100% 76.1 0.0
29 06:35 Calm 14.48 Fair CLR 6 6 100% 76.07 0.0
29 06:15 Calm 14.48 Fair CLR 7 7 100% 76.07 0.0
29 05:55 Calm 14.48 Fair CLR 8 8 100% 76.07 0.0
29 05:35 Calm 14.48 Fair CLR 7 7 100% 76.07 0.0
29 04:55 Calm 12.87 Fair CLR 7 7 100% 76.07 0.0
29 04:35 Calm 14.48 Fair CLR 7 7 100% 76.07 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)