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.
08 11:55 NW 20 12.87 A Few Clouds FEW013 13 12 94% 76.53 0.0
08 11:35 NW 19 9.66 Fog/Mist SCT008 SCT013 12 12 100% 76.53 0.0
08 11:15 NW 20 6.44 Fog/Mist BKN007 12 12 100% 76.56 0.0
08 10:55 NW 17 6.44 Fog/Mist BKN006 12 12 100% 76.56 0.0
08 10:35 NW 17 9.66 Fog/Mist OVC008 12 12 100% 76.53 0.0
08 10:15 NW 19 8.05 Fog/Mist OVC008 12 12 100% 76.53 0.0
08 09:55 NW 15 11.27 Mostly Cloudy BKN009 BKN013 12 12 100% 76.53 0.0
08 09:35 N 15 11.27 Mostly Cloudy BKN009 BKN013 12 12 100% 76.53 0.0
08 09:15 NW 19 9.66 Fog/Mist OVC009 12 12 100% 76.53 0.0
08 08:55 NW 20 8.05 Fog/Mist OVC009 12 12 100% 76.5 0.0
08 08:35 NW 17 8.05 Fog/Mist OVC010 12 12 100% 76.5 0.0
08 08:15 N 15 G 26 9.66 Fog/Mist OVC010 12 11 94% 76.5 0.0
08 07:55 NW 19 8.05 Fog/Mist OVC009 12 12 100% 76.5 0.0
08 07:35 NW 22 8.05 Fog/Mist OVC010 12 12 100% 76.5 0.0
08 07:15 N 19 9.66 Fog/Mist OVC010 12 11 94% 76.48 0.0
08 06:55 NW 17 9.66 Fog/Mist OVC010 12 11 94% 76.48 0.0
08 06:35 N 17 11.27 Overcast OVC011 12 11 94% 76.45 0.0
08 06:15 N 19 11.27 Overcast OVC010 12 11 94% 76.45 0.0
08 05:55 N 19 12.87 Overcast OVC010 12 12 100% 76.45 0.0
08 05:35 N 17 12.87 Overcast OVC011 12 11 94% 76.45 0.0
08 05:15 NW 19 12.87 Overcast OVC011 12 11 94% 76.43 0.0
08 04:55 NW 19 14.48 Overcast OVC012 12 11 94% 76.45 0.0
08 04:35 N 24 14.48 Overcast OVC012 12 11 94% 76.43 0.0
08 04:15 NW 22 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 03:55 N 15 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 03:35 NW 20 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 03:15 NW 15 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 02:55 NW 15 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 02:35 N 13 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 02:15 N 13 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 01:55 NW 15 14.48 Overcast OVC012 12 11 94% 76.43 0.0
08 01:35 NW 15 14.48 Overcast OVC011 12 11 94% 76.45 0.0
08 01:15 N 17 G 26 12.87 Overcast OVC011 12 12 100% 76.45 0.0
08 00:55 NW 17 14.48 Overcast OVC012 12 12 100% 76.45 0.0
08 00:35 N 13 14.48 Overcast OVC012 12 11 94% 76.45 0.0
08 00:15 NW 13 G 28 16.09 Overcast OVC013 12 11 94% 76.45 0.0
07 23:55 NW 20 14.48 Overcast OVC012 12 11 94% 76.45 0.0
07 23:35 NW 20 14.48 Overcast OVC011 0 0 0% 76.45 0.0
07 23:15 N 17 14.48 Overcast OVC011 12 12 100% 76.45 0.0
07 22:55 N 22 12.87 Overcast OVC011 12 12 100% 76.45 0.0
07 22:35 N 13 14.48 Overcast OVC010 12 12 100% 76.45 0.0
07 22:15 N 17 16.09 Overcast OVC010 12 12 100% 76.45 0.0
07 21:55 N 13 G 24 14.48 Overcast OVC008 12 12 100% 76.45 0.0
07 21:35 N 9 G 20 14.48 NULL NULL 12 12 100% 76.45 0.0
07 21:15 Calm 14.48 Overcast OVC008 12 12 100% 0 0.0
07 20:55 NW 11 G 22 14.48 Overcast OVC009 12 12 100% 76.43 0.0
07 20:35 NW 19 14.48 Overcast OVC007 12 12 100% 76.4 0.0
07 20:15 N 15 14.48 Overcast OVC006 12 12 100% 76.4 0.0
07 19:55 NW 19 16.09 Overcast OVC007 12 12 100% 76.38 0.0
07 19:35 NW 20 14.48 Overcast OVC007 12 12 100% 76.38 0.0
07 19:15 NW 19 14.48 Overcast OVC007 12 12 100% 76.38 0.0
07 18:55 N 15 14.48 Overcast OVC009 13 13 100% 76.38 0.0
07 18:35 NW 20 14.48 Overcast OVC009 13 12 94% 76.38 0.0
07 18:15 NW 20 14.48 Overcast OVC008 13 13 100% 76.38 0.0
07 17:55 NW 22 14.48 Overcast OVC008 0 0 0% 76.38 0.0
07 17:35 N 24 14.48 Overcast OVC008 13 13 100% 76.4 0.0
07 17:15 NW 26 14.48 Mostly Cloudy BKN009 BKN013 13 13 100% 76.4 0.0
07 16:55 NW 24 16.09 Mostly Cloudy BKN010 13 12 94% 76.4 0.0
07 16:35 NW 24 14.48 Mostly Cloudy BKN010 13 12 94% 76.43 0.0
07 16:15 N 22 G 33 14.48 Mostly Cloudy BKN010 14 13 94% 76.43 0.0
07 15:55 NW 24 16.09 Partly Cloudy SCT009 14 13 94% 76.43 0.0
07 15:35 NW 26 14.48 A Few Clouds FEW010 14 13 94% 76.4 0.0
07 15:15 NW 24 16.09 A Few Clouds FEW010 14 13 94% 76.43 0.0
07 14:55 NW 24 14.48 Fair CLR 15 13 88% 76.43 0.0
07 14:35 NW 28 14.48 A Few Clouds FEW008 14 13 94% 76.43 0.0
07 14:15 NW 26 14.48 A Few Clouds FEW008 14 13 94% 76.45 0.0
07 13:55 NW 22 14.48 A Few Clouds FEW008 0 0 0% 76.45 0.0
07 13:35 NW 24 14.48 Mostly Cloudy BKN007 0 0 0% 76.48 0.0
07 13:15 NW 24 12.87 Mostly Cloudy BKN006 14 13 94% 76.48 0.0
07 12:55 NW 22 14.48 Mostly Cloudy BKN007 14 13 94% 76.48 0.0
07 12:35 NW 20 14.48 Mostly Cloudy BKN006 14 13 94% 76.5 0.0
07 12:15 NW 22 14.48 Mostly Cloudy BKN006 14 13 94% 76.5 0.0
07 11:55 NW 19 12.87 Mostly Cloudy BKN007 14 13 94% 76.5 0.0
07 11:35 NW 20 14.48 Partly Cloudy FEW008 SCT013 14 13 94% 76.53 0.0
07 11:15 NW 24 14.48 Partly Cloudy SCT011 14 13 94% 76.53 0.0
07 10:55 NW 17 12.87 Mostly Cloudy BKN012 13 12 94% 76.53 0.0
07 10:35 NW 17 14.48 Overcast OVC013 13 12 94% 76.53 0.0
07 10:15 N 13 G 24 14.48 Overcast OVC013 13 12 94% 76.53 0.0
07 09:55 Vrbl 11 14.48 Overcast OVC013 0 0 0% 76.5 0.0
07 09:35 NW 17 14.48 Overcast OVC012 13 12 94% 76.5 0.0
07 09:15 N 13 14.48 Overcast OVC012 12 12 100% 76.5 0.0
07 08:55 NW 15 12.87 Overcast OVC011 12 12 100% 76.5 0.0
07 08:35 NW 15 12.87 Overcast OVC010 12 12 100% 76.5 0.0
07 08:15 N 13 14.48 Overcast OVC010 12 12 100% 76.5 0.0
07 07:55 N 11 14.48 Overcast OVC010 12 12 100% 76.5 0.0
07 07:35 N 9 14.48 Overcast OVC010 12 12 100% 76.5 0.0
07 07:15 N 11 14.48 Overcast OVC009 12 12 100% 76.48 0.0
07 06:55 N 11 14.48 Overcast OVC009 12 12 100% 76.48 0.0
07 06:35 N 7 12.87 Overcast OVC009 12 12 100% 76.48 0.0
07 06:15 N 11 14.48 Overcast OVC008 12 12 100% 76.45 0.0
07 05:55 NW 6 14.48 Overcast OVC008 12 12 100% 76.45 0.0
07 05:35 NW 17 14.48 Overcast OVC008 0 0 0% 76.45 0.0
07 05:15 N 13 16.09 Overcast OVC008 12 12 100% 76.45 0.0
07 04:55 NW 11 14.48 Overcast OVC008 12 12 100% 76.45 0.0
07 04:35 NW 13 14.48 Overcast OVC008 12 12 100% 76.48 0.0
07 04:15 NW 17 16.09 Overcast OVC009 12 12 100% 76.48 0.0
07 03:55 N 6 16.09 Overcast OVC009 12 12 100% 76.48 0.0
07 03:35 N 13 14.48 NULL NULL 12 12 100% 76.48 0.0
07 03:15 N 7 G 19 14.48 Overcast OVC009 12 12 100% 76.48 0.0
07 02:55 NW 11 14.48 Overcast OVC009 12 12 100% 76.48 0.0
07 02:35 NW 13 14.48 Overcast OVC009 12 12 100% 76.48 0.0
07 02:15 N 15 14.48 Overcast OVC009 12 12 100% 76.5 0.0
07 01:55 N 9 14.48 Overcast OVC009 12 12 100% 76.5 0.0
07 01:35 N 17 14.48 Overcast OVC009 12 12 100% 76.53 0.0
07 01:15 N 11 14.48 Overcast OVC008 12 12 100% 76.53 0.0
07 00:55 Vrbl 11 12.87 Overcast OVC007 12 12 100% 76.53 0.0
07 00:35 N 7 14.48 Overcast OVC007 12 12 100% 76.53 0.0
07 00:15 N 11 14.48 Overcast OVC007 12 12 100% 76.53 0.0
06 23:55 NW 15 14.48 Overcast OVC007 12 12 100% 76.53 0.0
06 23:35 NW 15 14.48 Overcast OVC007 12 12 100% 76.53 0.0
06 23:15 N 15 14.48 Overcast OVC007 12 12 100% 76.53 0.0
06 22:55 NW 17 14.48 Overcast OVC007 12 12 100% 76.53 0.0
06 21:55 N 15 12.87 Overcast OVC007 13 13 100% 76.53 0.0
06 21:35 NW 19 14.48 Overcast OVC008 13 13 100% 76.53 0.0
06 21:15 N 17 G 28 14.48 Overcast OVC008 13 13 100% 76.53 0.0
06 20:55 NW 19 14.48 Overcast OVC007 0 0 0% 76.5 0.0
06 20:35 N 20 14.48 Overcast OVC007 13 13 100% 76.5 0.0
06 20:15 N 17 G 28 14.48 Overcast OVC008 0 0 0% 76.5 0.0
06 19:55 NW 24 G 33 14.48 Overcast OVC008 13 13 100% 76.48 0.0
06 19:35 N 22 14.48 Overcast OVC008 13 13 100% 76.48 0.0
06 19:15 N 17 14.48 Overcast OVC009 13 13 100% 76.48 0.0
06 18:55 N 22 14.48 Overcast OVC010 13 13 100% 76.48 0.0
06 18:35 NW 19 G 31 14.48 Overcast OVC009 14 13 94% 76.48 0.0
06 18:15 N 19 G 30 14.48 Overcast OVC011 14 13 94% 76.48 0.0
06 17:55 NW 24 16.09 Overcast OVC011 14 13 94% 76.48 0.0
06 17:35 N 20 G 33 16.09 Overcast OVC012 14 13 94% 76.48 0.0
06 17:15 NW 24 16.09 Overcast OVC011 14 13 94% 76.48 0.0
06 16:55 NW 30 G 39 14.48 Overcast OVC012 15 14 94% 76.48 0.0
06 16:35 NW 28 16.09 Overcast OVC013 15 14 94% 76.45 0.0
06 16:15 NW 30 14.48 Overcast OVC013 15 14 94% 76.48 0.0
06 15:55 NW 28 G 37 16.09 Overcast OVC013 16 14 88% 76.48 0.0
06 15:35 NW 28 14.48 Overcast OVC013 16 14 88% 76.5 0.0
06 15:15 NW 31 16.09 Overcast OVC013 16 14 88% 76.5 0.0
06 14:55 NW 31 G 41 16.09 Partly Cloudy SCT013 16 14 88% 76.53 0.0
06 14:35 NW 30 16.09 Fair CLR 16 14 88% 76.53 0.0
06 14:15 N 30 G 39 16.09 Partly Cloudy SCT012 17 14 83% 76.53 0.0
06 13:55 NW 31 16.09 Mostly Cloudy BKN013 16 14 88% 76.53 0.0
06 13:35 NW 28 14.48 A Few Clouds FEW012 0 0 0% 76.56 0.0
06 13:15 NW 30 G 41 14.48 Fair CLR 16 14 88% 76.56 0.0
06 12:55 NW 28 16.09 A Few Clouds FEW013 16 14 88% 76.56 0.0
06 12:35 NW 28 G 39 16.09 Fair CLR 16 14 88% 76.58 0.0
06 12:15 NW 30 16.09 Fair CLR 16 14 88% 76.58 0.0
06 11:55 NW 28 16.09 Fair CLR 16 14 88% 76.58 0.0
06 11:35 NW 26 16.09 Fair CLR 16 14 88% 76.58 0.0
06 11:15 NW 24 16.09 A Few Clouds FEW018 16 14 88% 76.58 0.0
06 10:55 NW 22 16.09 Mostly Cloudy BKN018 16 14 88% 76.58 0.0
06 10:35 NW 22 16.09 Overcast OVC017 15 14 94% 76.58 0.0
06 10:15 N 15 16.09 Overcast OVC016 15 13 88% 76.61 0.0
06 09:55 N 11 16.09 Overcast OVC015 14 13 94% 76.61 0.0
06 09:35 Vrbl 9 16.09 Overcast OVC014 14 13 94% 76.61 0.0
06 09:15 N 11 16.09 Overcast OVC015 14 13 94% 76.61 0.0
06 08:55 NW 11 14.48 Overcast OVC016 14 13 94% 76.61 0.0
06 08:35 N 7 14.48 Overcast OVC017 14 13 94% 76.58 0.0
06 08:15 Calm 16.09 Overcast BKN019 OVC023 14 12 88% 76.58 0.0
06 07:55 Calm 16.09 Overcast OVC021 14 12 88% 76.58 0.0
06 07:35 N 6 16.09 Overcast OVC020 14 12 88% 76.58 0.0
06 07:15 NE 6 14.48 Overcast OVC019 14 12 88% 76.58 0.0
06 06:55 Calm 14.48 Overcast OVC019 13 13 100% 76.56 0.0
06 06:35 Calm 16.09 Overcast OVC019 13 13 100% 76.53 0.0
06 06:15 N 7 16.09 Overcast OVC019 0 0 0% 76.53 0.0
06 05:55 N 6 16.09 Overcast OVC019 13 13 100% 76.5 0.0
06 05:35 NE 6 16.09 Overcast OVC020 12 12 100% 76.5 0.0
06 05:15 N 7 16.09 Overcast OVC021 13 13 100% 76.5 0.0
06 04:55 N 7 16.09 Overcast OVC022 13 13 100% 76.48 0.0
06 04:35 N 7 16.09 Overcast OVC022 0 0 0% 76.48 0.0
06 04:15 N 9 16.09 Overcast OVC022 13 12 94% 76.48 0.0
06 03:55 N 7 16.09 Overcast OVC022 13 13 100% 76.45 0.0
06 03:35 N 7 16.09 Overcast OVC024 13 12 94% 76.45 0.0
06 03:15 NW 9 16.09 Overcast OVC024 13 13 100% 76.45 0.0
06 02:55 N 7 16.09 Overcast OVC024 14 13 94% 76.45 0.0
06 02:35 N 9 16.09 Overcast OVC024 14 13 94% 76.45 0.0
06 02:15 N 7 16.09 Overcast OVC024 14 13 94% 76.45 0.0
06 01:55 NW 9 16.09 Overcast OVC024 13 13 100% 76.45 0.0
06 01:35 N 7 16.09 Overcast OVC025 14 13 94% 76.45 0.0
06 01:15 N 9 16.09 Overcast OVC025 14 13 94% 76.48 0.0
06 00:55 N 11 16.09 Overcast FEW015 OVC025 14 14 100% 76.45 0.0
06 00:35 NW 11 16.09 Overcast FEW010 FEW014 OVC025 14 14 100% 76.45 0.0
06 00:15 NW 9 14.48 Overcast FEW009 FEW013 OVC024 0 0 0% 76.43 0.0
05 23:55 NW 7 16.09 Overcast OVC025 14 14 100% 76.43 0.0
05 23:35 NW 7 14.48 Overcast OVC025 14 14 100% 76.43 0.0
05 23:15 NW 7 16.09 Overcast OVC025 14 14 100% 76.43 0.0
05 22:55 NW 6 14.48 Overcast FEW010 FEW016 OVC024 14 14 100% 76.4 0.0
05 22:35 Calm 12.87 Overcast SCT009 SCT015 OVC022 14 14 100% 76.4 0.0
05 22:15 Calm 16.09 Overcast SCT009 BKN017 OVC024 14 14 100% 76.4 0.0
05 21:55 Calm 14.48 Overcast OVC025 14 14 100% 76.4 0.0
05 21:35 Calm 16.09 Overcast OVC027 14 14 100% 76.38 0.0
05 21:15 Calm 12.87 Overcast FEW011 OVC028 14 14 100% 76.35 0.0
05 20:55 Calm 14.48 Overcast FEW011 FEW022 OVC028 0 0 0% 76.35 0.0
05 20:35 Calm 16.09 Overcast OVC027 14 13 94% 76.33 0.0
05 20:15 Calm 16.09 Overcast OVC027 14 13 94% 76.3 0.0
05 19:55 W 7 14.48 Overcast OVC027 14 13 94% 76.3 0.0
05 19:35 W 11 16.09 Overcast OVC028 0 0 0% 76.28 0.0
05 19:15 W 11 14.48 Overcast OVC028 14 13 94% 76.28 0.0
05 18:55 W 9 16.09 Overcast OVC028 0 0 0% 76.28 0.0
05 18:35 W 11 16.09 Overcast OVC028 14 13 94% 76.28 0.0
05 18:15 W 11 16.09 Overcast OVC029 15 14 94% 76.28 0.0
05 17:55 W 11 16.09 Overcast FEW013 OVC029 15 14 94% 76.28 0.0
05 17:35 W 11 16.09 Overcast OVC029 14 14 100% 76.25 0.0
05 17:15 NW 9 16.09 Overcast OVC030 15 14 94% 76.25 0.0
05 16:55 NW 13 16.09 Overcast OVC030 14 14 100% 76.25 0.0
05 16:35 NW 11 16.09 Overcast OVC031 15 14 94% 76.25 0.0
05 16:15 NW 11 16.09 Overcast FEW015 OVC030 15 14 94% 76.25 0.0
05 15:55 NW 11 16.09 Overcast OVC029 15 13 88% 76.25 0.0
05 15:35 W 15 16.09 Overcast OVC029 15 13 88% 76.25 0.0
05 15:15 W 13 16.09 Overcast OVC030 16 13 83% 76.25 0.0
05 14:55 NW 15 16.09 Overcast OVC030 16 14 88% 76.28 0.0
05 14:35 W 13 16.09 Overcast OVC033 15 14 94% 76.28 0.0
05 14:15 NW 13 16.09 Overcast OVC032 15 14 94% 76.28 0.0
05 13:55 NW 13 14.48 Overcast OVC033 16 13 83% 76.28 0.0
05 13:35 NW 15 16.09 Overcast OVC033 16 13 83% 76.28 0.0
05 13:15 NW 17 14.48 Overcast OVC034 16 13 83% 76.28 0.0
05 12:55 W 15 16.09 Overcast BKN034 OVC065 16 14 88% 76.28 0.0
05 12:35 NW 13 16.09 Overcast FEW013 BKN035 OVC065 15 14 94% 76.3 0.0
05 12:15 NW 13 16.09 Overcast FEW013 OVC050 0 0 0% 76.28 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)