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 (pst) 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 22:35 S 26 G 41 8.05 Fog/Mist FEW005 BKN008 OVC042 14 14 100% 76.2 0.0
01 22:15 S 20 G 35 2.01 Fog/Mist BKN005 OVC021 14 14 100% 76.2 0.0
01 21:55 S 26 2.41 Fog/Mist OVC006 14 14 100% 76.2 0.0
01 21:35 S 22 3.22 Fog/Mist BKN005 BKN009 OVC014 14 14 100% 76.2 0.0
01 21:15 S 20 G 31 4.02 Fog/Mist OVC005 14 14 100% 76.2 0.0
01 20:55 S 19 G 30 1.21 Fog/Mist OVC004 14 14 100% 76.17 0.0 0.03
01 20:35 S 17 3.22 Fog/Mist OVC004 14 14 100% 76.15 0.0
01 20:15 S 20 1.61 Fog/Mist OVC004 14 14 100% 76.15 0.0
01 19:55 S 20 6.44 Fog/Mist OVC003 14 14 100% 76.12 0.0
01 19:35 S 17 6.44 Fog/Mist BKN003 OVC006 14 14 100% 76.1 0.0
01 19:15 S 26 2.41 Fog/Mist OVC005 14 14 100% 76.07 0.0
01 18:55 S 22 1.61 Fog/Mist OVC007 14 14 100% 76.07 0.0
01 18:35 S 24 G 33 2.41 Fog/Mist BKN008 OVC012 14 14 100% 76.07 0.0
01 18:15 S 31 G 43 8.05 Fog/Mist OVC011 14 14 100% 76.05 0.0
01 17:55 S 24 G 37 9.66 Fog/Mist OVC012 14 14 100% 76.02 0.0
01 17:35 S 26 8.05 Fog/Mist OVC014 14 14 100% 76.02 0.0
01 17:15 S 28 G 37 4.83 Fog/Mist FEW007 OVC013 14 14 100% 76.02 0.0
01 16:55 S 28 G 37 1.61 Fog/Mist BKN006 BKN009 OVC014 14 14 100% 76.02 0.0
01 16:35 S 26 G 39 2.82 Fog/Mist BKN013 OVC018 14 14 100% 76.02 0.0
01 16:15 S 26 G 37 1.61 Fog/Mist SCT009 BKN015 OVC027 14 14 100% 76.02 0.0
01 15:55 S 31 3.22 Fog/Mist FEW009 SCT025 BKN030 14 14 100% 76.02 0.0
01 15:35 S 30 4.83 Fog/Mist SCT009 BKN013 OVC040 15 15 100% 76.02 0.0
01 15:15 S 30 G 39 6.44 Fog/Mist OVC013 15 15 100% 76 0.0
01 14:55 S 30 6.44 Fog/Mist SCT013 BKN028 OVC037 15 15 100% 76 0.0 0.03
01 14:35 S 26 6.44 Fog/Mist FEW024 SCT029 OVC040 15 15 100% 76 0.0
01 14:15 S 26 G 39 8.05 Fog/Mist BKN021 BKN025 OVC030 15 15 100% 76 0.0
01 13:55 S 28 6.44 Fog/Mist SCT018 BKN024 OVC030 15 15 100% 76 0.0
01 13:35 S 22 8.05 Fog/Mist SCT018 BKN023 OVC037 15 15 100% 76 0.0
01 12:55 S 22 G 35 8.05 Fog/Mist FEW015 SCT029 OVC037 15 15 100% 76 0.0
01 12:35 S 24 8.05 Fog/Mist FEW014 SCT024 OVC036 15 15 100% 76.02 0.0
01 12:15 S 24 9.66 Fog/Mist SCT012 BKN023 BKN033 15 15 100% 76.02 0.0
01 11:55 S 19 8.05 Fog/Mist FEW007 BKN012 OVC029 15 15 100% 76.02 0.0 0.03
01 11:35 S 17 9.66 Fog/Mist SCT013 BKN022 BKN029 14 14 100% 76.02 0.0
01 11:15 S 13 G 26 1.21 Fog/Mist BKN004 BKN010 OVC015 13 13 100% 76.05 0.0
01 10:55 S 17 0.80 Light Rain Fog OVC004 14 14 100% 76.02 0.0
01 10:35 S 13 1.21 Light Rain Fog/Mist BKN003 BKN008 OVC015 14 14 100% 76 0.0
01 10:15 S 13 0.80 Light Rain Fog OVC003 14 14 100% 76 0.0
01 09:55 SE 11 2.01 Fog/Mist OVC003 14 14 100% 75.97 0.0 0.03
01 09:35 S 11 6.44 Fog/Mist OVC005 14 14 100% 75.95 0.0
01 09:15 SE 9 4.83 Fog/Mist OVC004 14 14 100% 75.9 0.0
01 08:55 SE 7 4.83 Fog/Mist OVC004 14 14 100% 75.87 0.0 0.03
01 08:35 Calm 3.22 Fog/Mist BKN004 BKN009 14 14 100% 75.84 0.0
01 08:15 W 11 G 20 0.80 Fog OVC003 14 14 100% 75.82 0.0
01 07:55 S 20 1.61 Fog/Mist SCT003 OVC010 14 14 100% 75.77 0.0 0.03
01 07:35 S 19 2.82 Fog/Mist FEW003 OVC013 15 15 100% 75.74 0.0
01 07:15 S 19 8.05 Fog/Mist OVC013 15 15 100% 75.74 0.0
01 06:35 S 11 6.44 Fog/Mist FEW018 SCT026 BKN034 15 15 100% 75.72 0.0
01 06:15 SE 15 14.48 Overcast FEW019 BKN027 OVC032 15 15 100% 75.69 0.0
01 05:55 SE 13 4.83 Light Rain Fog/Mist SCT023 BKN030 OVC037 15 15 100% 75.69 0.0 0.03
01 05:35 SE 17 8.05 Fog/Mist BKN013 BKN021 OVC045 15 15 100% 75.69 0.0
01 05:15 SE 17 4.83 Fog/Mist BKN015 OVC020 15 15 100% 75.69 0.0
01 04:55 SE 19 2.82 Light Rain Fog/Mist OVC018 15 15 100% 75.69 0.0 0.03
01 04:35 SE 19 6.44 Light Rain Fog/Mist OVC019 15 15 100% 75.67 0.0
01 03:55 SE 15 4.83 Light Rain Fog/Mist OVC020 14 14 100% 75.69 0.0 0.03
01 03:35 SE 15 3.22 Fog/Mist OVC019 15 15 100% 75.72 0.0
01 03:15 SE 17 3.22 Fog/Mist OVC020 15 15 100% 75.72 0.0
01 02:55 SE 20 4.83 Fog/Mist OVC019 15 15 100% 75.72 0.0 0.03
01 02:35 SE 15 4.83 Light Rain Fog/Mist OVC020 15 15 100% 75.72 0.0
01 02:15 SE 17 6.44 Light Rain Fog/Mist OVC021 14 14 100% 75.74 0.0
01 01:55 SE 20 3.22 Fog/Mist BKN020 OVC024 14 14 100% 75.74 0.0 0.03
01 01:35 SE 17 2.41 Fog/Mist OVC021 14 14 100% 75.74 0.0
01 01:15 SE 17 1.21 Fog/Mist SCT014 OVC022 14 14 100% 75.77 0.0
01 00:55 E 17 2.41 Fog/Mist OVC020 14 14 100% 75.77 0.0 0.05
01 00:35 E 13 2.41 Light Rain Fog/Mist OVC018 14 14 100% 75.79 0.0
01 00:15 SE 11 4.02 Fog/Mist OVC018 14 14 100% 75.82 0.0
31 23:55 SE 11 9.66 Fog/Mist OVC018 14 14 100% 75.82 0.0 0.03
31 23:35 Calm 8.05 Fog/Mist OVC018 14 14 100% 75.82 0.0
31 23:15 Calm 4.02 Fog/Mist OVC020 13 13 100% 75.84 0.0
31 22:35 Calm 8.05 Fog/Mist OVC021 13 13 100% 75.87 0.0
31 22:15 Calm 4.83 Light Rain Fog/Mist OVC023 13 13 100% 75.87 0.0
31 21:55 Calm 6.44 Fog/Mist OVC025 13 13 100% 75.87 0.0 0.1
31 21:35 Calm 3.22 Fog/Mist OVC027 13 13 100% 75.87 0.0
31 21:15 Calm 4.83 Fog/Mist BKN028 OVC032 13 13 100% 75.87 0.0
31 20:55 Calm 6.44 Fog/Mist OVC028 13 13 100% 75.87 0.0 0.1
31 20:35 Calm 2.82 Light Rain Fog/Mist OVC032 13 13 100% 75.87 0.0
31 19:55 Calm 6.44 Light Rain Fog/Mist BKN028 OVC035 13 13 100% 75.87 0.0 0.1
31 19:35 Calm 4.02 Light Rain Fog/Mist BKN025 BKN031 OVC038 13 13 100% 75.87 0.0
31 19:15 Calm 4.83 Light Rain Fog/Mist BKN025 OVC036 13 13 100% 75.87 0.0
31 18:55 Calm 4.83 Light Rain Fog/Mist BKN025 BKN037 OVC050 13 13 100% 75.87 0.0 0.2
31 18:35 Calm 4.83 Light Rain Fog/Mist FEW027 BKN044 OVC050 13 13 100% 75.87 0.0
31 18:15 Calm 4.83 Light Rain Fog/Mist FEW026 BKN033 OVC042 13 13 100% 75.9 0.0
31 17:55 Calm 3.22 Light Rain Fog/Mist FEW027 OVC035 13 13 100% 75.92 0.0 0.18
31 17:35 Calm 4.02 Light Rain Fog/Mist FEW013 BKN034 OVC041 13 13 100% 75.9 0.0
31 17:15 Calm 4.83 Light Rain Fog/Mist BKN025 BKN030 OVC038 14 14 100% 75.92 0.0
31 16:55 Calm 3.22 Light Rain Fog/Mist BKN025 OVC031 14 14 100% 75.92 0.0 0.25
31 16:35 Calm 3.22 Light Rain Fog/Mist OVC031 14 14 100% 75.92 0.0
31 16:15 Calm 3.22 Light Rain Fog/Mist OVC031 14 14 100% 75.92 0.0
31 15:35 SW 7 4.02 Light Rain Fog/Mist BKN034 BKN040 15 15 100% 75.9 0.0
31 15:15 Calm 3.22 Light Rain Fog/Mist SCT038 SCT045 15 14 94% 75.9 0.0
31 14:55 Vrbl 6 3.22 Light Rain Fog/Mist SCT045 14 14 100% 75.92 0.0 0.05
31 14:35 NW 6 6.44 Unknown Precip Fog/Mist SCT048 14 13 94% 75.92 0.0
31 14:15 Vrbl 6 4.02 Light Rain Fog/Mist FEW050 13 13 100% 75.95 0.0
31 13:55 N 7 4.83 Light Rain Fog/Mist SCT055 13 13 100% 75.97 0.0 0.03
31 13:35 E 17 4.83 Unknown Precip Fog/Mist FEW045 BKN055 14 12 88% 76 0.0
31 13:15 E 22 4.83 Partly Cloudy with Haze SCT060 14 11 82% 76.02 0.0
31 12:55 SE 15 G 28 8.05 A Few Clouds with Haze FEW050 15 11 77% 76.07 0.0
31 12:35 SE 11 8.05 Fair with Haze CLR 15 11 77% 0 0.0
31 12:15 E 15 9.66 Fair with Haze CLR 16 11 72% 76.1 0.0
31 11:55 Vrbl 7 8.05 Fair with Haze CLR 16 11 72% 76.1 0.0
31 11:35 Vrbl 7 9.66 Fair with Haze CLR 16 11 72% 76.15 0.0
31 11:15 Vrbl 11 9.66 Fair with Haze CLR 15 10 72% 76.2 0.0
31 10:55 SE 6 8.05 A Few Clouds with Haze FEW070 14 11 82% 76.23 0.0
31 10:35 N 6 8.05 Unknown Precip Haze SCT070 13 11 88% 76.25 0.0
31 10:15 E 15 G 24 4.83 Fair with Haze CLR 15 11 77% 76.28 0.0
31 09:55 E 13 8.05 A Few Clouds with Haze FEW060 FEW065 FEW080 16 9 63% 76.28 0.0
31 09:35 Calm 8.05 Unknown Precip Haze SCT055 BKN065 16 8 59% 76.28 0.0
31 09:15 N 9 11.27 Overcast OVC060 15 6 55% 76.25 0.0
31 08:55 NE 9 9.66 Overcast with Haze BKN060 OVC070 15 4 48% 76.28 0.0
31 08:35 E 7 12.87 Overcast FEW035 BKN070 OVC090 16 2 39% 76.25 0.0
31 08:15 NE 17 12.87 Overcast FEW036 BKN050 OVC110 16 2 39% 76.23 0.0
31 07:55 E 11 14.48 Mostly Cloudy FEW042 SCT060 BKN080 16 1 36% 76.23 0.0
31 07:35 Vrbl 11 G 22 14.48 Mostly Cloudy FEW044 SCT060 BKN075 15 0 36% 76.23 0.0
31 07:15 NE 9 G 26 14.48 Overcast SCT043 BKN060 OVC075 16 0 34% 76.25 0.0
31 06:55 Vrbl 9 G 22 14.48 Overcast FEW033 BKN055 OVC110 15 1 39% 76.25 0.0
31 06:35 E 13 14.48 Mostly Cloudy FEW030 SCT041 BKN055 16 0 34% 76.25 0.0
31 06:15 E 13 14.48 Overcast SCT041 BKN060 OVC110 16 1 36% 76.25 0.0
31 05:55 E 15 G 26 14.48 Overcast SCT039 BKN045 OVC120 16 2 39% 76.25 0.0
31 05:35 E 15 14.48 Overcast BKN042 OVC050 16 2 39% 76.25 0.0
31 05:15 NE 13 12.87 Mostly Cloudy FEW035 SCT043 BKN060 16 1 36% 76.28 0.0
31 04:55 NE 11 14.48 Overcast SCT060 BKN070 OVC080 17 0 32% 76.28 0.0
31 04:35 NE 11 14.48 Overcast SCT065 OVC075 17 0 32% 76.25 0.0
31 04:15 NE 13 16.09 Overcast FEW055 OVC070 16 0 34% 76.25 0.0
31 03:55 NE 13 16.09 Overcast SCT060 OVC070 16 0 34% 76.28 0.0
31 03:35 NE 17 16.09 Overcast OVC070 16 0 34% 76.28 0.0
31 03:15 NE 22 16.09 Mostly Cloudy FEW065 SCT075 BKN090 16 0 34% 76.28 0.0
31 02:55 NE 19 16.09 Overcast FEW049 BKN100 OVC120 16 0 34% 76.3 0.0
31 02:35 NE 19 G 30 16.09 Overcast SCT049 BKN075 OVC095 16 0 34% 76.3 0.0
31 02:15 NE 24 16.09 Mostly Cloudy FEW055 BKN100 15 0 36% 76.3 0.0
31 01:55 E 24 G 35 16.09 A Few Clouds FEW110 15 1 39% 76.3 0.0
31 01:35 NE 22 G 35 16.09 Fair CLR 15 1 39% 76.33 0.0
31 01:15 NE 26 16.09 Fair CLR 15 1 39% 76.33 0.0
31 00:55 NE 24 14.48 Fair CLR 15 1 39% 76.33 0.0
31 00:35 NE 24 G 35 14.48 Fair CLR 15 1 39% 76.33 0.0
31 00:15 NE 20 G 33 16.09 Fair CLR 14 1 41% 76.38 0.0
30 23:55 NE 24 16.09 Fair CLR 14 1 41% 76.35 0.0
30 23:35 NE 24 16.09 Fair CLR 14 2 44% 76.38 0.0
30 23:15 NE 22 16.09 Fair CLR 14 1 41% 76.38 0.0
30 22:55 NE 22 16.09 Fair CLR 14 2 44% 76.4 0.0
30 22:35 NE 19 16.09 Fair CLR 15 1 39% 76.4 0.0
30 22:15 NE 17 G 28 16.09 Fair CLR 15 1 39% 76.38 0.0
30 21:55 E 13 16.09 Fair CLR 14 1 41% 76.38 0.0
30 21:35 NE 22 16.09 Fair CLR 15 1 39% 76.38 0.0
30 21:15 NE 22 16.09 Fair CLR 15 1 39% 76.38 0.0
30 20:55 Calm 16.09 Fair CLR 13 2 47% 76.4 0.0
30 20:35 E 9 14.48 Fair CLR 16 0 34% 76.4 0.0
30 20:15 NE 15 16.09 Fair CLR 15 0 36% 76.4 0.0
30 19:55 NE 13 16.09 Fair CLR 15 1 39% 76.4 0.0
30 19:35 NE 20 14.48 Fair CLR 15 1 39% 76.4 0.0
30 19:15 NE 22 14.48 Partly Cloudy SCT120 15 1 39% 76.4 0.0
30 18:55 E 22 16.09 Overcast OVC110 15 2 42% 76.43 0.0
30 18:35 NE 17 16.09 Overcast OVC110 15 2 42% 76.43 0.0
30 18:15 NE 24 16.09 Overcast OVC110 15 1 39% 76.4 0.0
30 17:55 NE 19 16.09 Overcast OVC110 16 0 34% 76.4 0.0
30 17:35 NE 15 16.09 Mostly Cloudy BKN120 16 0 34% 76.4 0.0
30 17:15 NE 19 14.48 Mostly Cloudy BKN120 16 0 34% 76.43 0.0
30 16:55 NE 13 14.48 Mostly Cloudy BKN120 16 0 34% 76.4 0.0
30 16:35 NE 9 14.48 Fair CLR 18 -1 28% 76.4 0.0
30 16:15 Calm 14.48 Fair CLR 18 -2 26% 76.4 0.0
30 15:55 NE 15 14.48 Fair CLR 18 -1 28% 76.43 0.0
30 15:35 NE 9 14.48 Fair CLR 18 -2 26% 76.45 0.0
30 15:15 NE 15 14.48 NULL NULL 18 0 30% 76.43 0.0
30 14:55 NE 15 14.48 NULL NULL 18 1 32% 76.43 0.0
30 14:35 NE 17 G 26 14.48 Fair CLR 18 1 32% 76.43 0.0
30 14:15 NE 20 14.48 Fair CLR 19 0 28% 76.43 0.0
30 13:55 NE 13 14.48 Fair CLR 17 0 32% 76.45 0.0
30 13:35 E 13 G 24 14.48 Fair CLR 17 1 34% 76.5 0.0
30 13:15 E 15 12.87 Fair CLR 17 1 34% 76.5 0.0
30 12:55 Calm 11.27 Fair CLR 17 7 52% 76.5 0.0
30 12:35 E 11 G 22 14.48 Fair CLR 17 0 32% 76.5 0.0
30 12:15 E 13 14.48 Fair CLR 17 0 32% 76.5 0.0
30 11:55 NE 17 14.48 Fair CLR 17 1 34% 76.53 0.0
30 11:35 NW 11 14.48 Fair CLR 15 7 59% 76.56 0.0
30 11:15 NW 9 12.87 Fair CLR 16 8 59% 76.58 0.0
30 10:55 NW 9 14.48 Fair CLR 16 8 59% 76.63 0.0
30 10:35 Calm 14.48 Fair CLR 18 2 34% 76.63 0.0
30 10:15 Calm 16.09 Fair CLR 16 4 45% 76.66 0.0
30 09:55 SE 6 16.09 Fair CLR 11 7 77% 76.66 0.0
30 09:35 Calm 14.48 Fair CLR 9 6 82% 76.63 0.0
30 09:15 Calm 14.48 Fair CLR 8 5 82% 76.63 0.0
30 08:55 Calm 14.48 Fair CLR 9 4 71% 76.61 0.0
30 08:35 Calm 14.48 Fair CLR 7 4 81% 76.61 0.0
30 08:15 Calm 14.48 Fair CLR 5 4 93% 76.61 0.0
30 07:55 Calm 16.09 Fair CLR 7 3 76% 76.58 0.0
30 07:35 Calm 14.48 Fair CLR 4 3 93% 76.58 0.0
30 07:15 NW 6 16.09 Fair CLR 5 4 93% 76.58 0.0
30 06:55 Calm 14.48 Fair CLR 5 3 87% 76.58 0.0
30 06:35 NE 7 14.48 Fair CLR 5 4 93% 4 76.58 0.0
30 06:15 Calm 16.09 Fair CLR 6 3 81% 76.58 0.0
30 05:55 Calm 14.48 Fair CLR 7 2 71% 76.58 0.0
30 05:35 NW 6 16.09 Fair CLR 8 1 62% 76.61 0.0
30 05:15 E 13 16.09 Fair CLR 10 0 50% 8 76.61 0.0
30 04:55 Calm 16.09 Fair CLR 6 3 81% 76.61 0.0
30 04:35 Calm 16.09 Fair CLR 7 2 71% 76.58 0.0
30 04:15 Calm 14.48 Fair CLR 8 2 66% 76.58 0.0
30 03:55 Calm 14.48 Fair CLR 6 2 76% 76.58 0.0
30 03:35 Calm 16.09 Fair CLR 5 2 81% 76.61 0.0
30 03:15 Calm 16.09 Fair CLR 7 2 71% 76.63 0.0
30 02:55 Calm 14.48 Fair CLR 7 2 71% 76.63 0.0
30 02:35 Calm 14.48 Fair CLR 9 1 58% 76.63 0.0
30 02:15 Calm 14.48 Fair CLR 9 2 62% 76.63 0.0
30 01:55 Calm 16.09 Fair CLR 6 3 81% 76.63 0.0
30 01:35 N 6 14.48 Fair CLR 6 3 81% 76.66 0.0
30 01:15 Calm 16.09 Fair CLR 6 2 76% 76.66 0.0
30 00:55 Vrbl 6 16.09 Fair CLR 7 2 71% 76.66 0.0
30 00:35 Calm 14.48 Fair CLR 7 2 71% 76.66 0.0
30 00:15 Calm 16.09 Fair CLR 8 2 66% 76.68 0.0
29 23:55 Calm 16.09 Fair CLR 6 3 81% 76.71 0.0
29 23:35 Calm 14.48 Fair CLR 8 2 66% 76.73 0.0
29 23:15 NE 9 16.09 Fair CLR 8 2 66% 7 76.71 0.0
29 22:55 Calm 14.48 Fair CLR 9 1 58% 76.73 0.0
Date Time (pst) 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)