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.
31 13:35 NW 9 12.87 Fair CLR 16 10 68% 75.97 0.0
31 13:15 NW 13 11.27 A Few Clouds FEW030 17 10 64% 75.95 0.0
31 12:55 NW 13 14.48 A Few Clouds FEW030 17 10 64% 75.97 0.0
31 12:35 NW 7 12.87 Fair CLR 17 11 68% 76 0.0
31 12:15 Calm 12.87 Fair CLR 16 10 68% 76.02 0.0
31 11:55 Vrbl 6 11.27 Partly Cloudy SCT028 SCT032 16 11 72% 76.05 0.0
31 11:35 Calm 12.87 Mostly Cloudy BKN028 16 11 72% 76.05 0.0
31 11:15 Calm 11.27 A Few Clouds FEW028 16 11 72% 76.02 0.0
31 10:55 S 6 11.27 A Few Clouds FEW029 16 11 72% 76.02 0.0
31 10:35 S 7 9.66 Fair with Haze CLR 16 11 72% 76.02 0.0
31 10:15 Calm 11.27 Fair CLR 16 11 72% 76.02 0.0
31 09:55 Calm 9.66 Fair with Haze CLR 14 12 88% 76.02 0.0
31 09:35 Calm 11.27 Fair CLR 14 12 88% 76.05 0.0
31 09:15 Calm 11.27 Fair CLR 13 12 94% 76.05 0.0
31 08:55 Calm 9.66 Fog/Mist CLR 12 11 94% 76.02 0.0
31 08:35 E 6 11.27 Fair CLR 10 10 100% 76.02 0.0
31 08:15 Calm 11.27 Partly Cloudy SCT029 0 0 0% 76 0.0
31 07:55 Calm 9.66 Fog/Mist SCT029 BKN120 10 10 100% 76 0.0
31 07:35 Calm 14.48 Partly Cloudy FEW031 SCT120 9 9 100% 76 0.0
31 07:15 Calm 14.48 Partly Cloudy SCT120 8 8 100% 75.97 0.0
31 06:55 Calm 14.48 Partly Cloudy SCT120 8 8 100% 75.97 0.0
31 06:35 Calm 14.48 Partly Cloudy FEW030 SCT120 8 8 100% 76 0.0
31 06:15 Calm 12.87 Partly Cloudy FEW031 SCT120 7 7 100% 75.97 0.0
31 05:55 Calm 12.87 Mostly Cloudy SCT029 BKN034 7 7 100% 75.97 0.0
31 05:35 Calm 14.48 Mostly Cloudy BKN032 6 6 100% 75.97 0.0
31 05:15 Calm 12.87 Mostly Cloudy BKN033 7 7 100% 75.97 0.0
31 04:55 Calm 14.48 Mostly Cloudy BKN031 7 7 100% 75.97 0.0
31 04:35 Calm 12.87 Partly Cloudy SCT030 SCT035 6 6 100% 75.97 0.0
31 04:15 Calm 12.87 Partly Cloudy SCT031 7 7 100% 75.97 0.0
31 03:55 Calm 12.87 A Few Clouds FEW030 7 7 100% 75.97 0.0
31 03:35 NE 9 12.87 A Few Clouds FEW031 8 8 100% 7 75.97 0.0
31 03:15 Calm 12.87 A Few Clouds FEW029 7 7 100% 75.95 0.0
31 02:55 Calm 12.87 Mostly Cloudy BKN027 8 8 100% 75.97 0.0
31 02:35 Calm 14.48 Mostly Cloudy BKN027 8 8 100% 75.97 0.0
31 02:15 Calm 12.87 Mostly Cloudy BKN026 7 7 100% 75.95 0.0
31 01:55 Calm 12.87 Mostly Cloudy BKN026 8 8 100% 75.97 0.0
31 01:35 Calm 12.87 Mostly Cloudy BKN026 8 8 100% 75.97 0.0
31 01:15 Vrbl 7 11.27 Partly Cloudy SCT026 0 0 0% 75.97 0.0
31 00:55 E 7 12.87 Mostly Cloudy BKN026 9 9 100% 8 75.97 0.0
31 00:35 NE 6 14.48 Partly Cloudy SCT026 9 9 100% 75.97 0.0
31 00:15 Calm 12.87 A Few Clouds FEW026 9 9 100% 76 0.0
30 23:55 Calm 12.87 A Few Clouds FEW026 9 9 100% 75.97 0.0
30 23:35 Calm 12.87 A Few Clouds FEW024 10 10 100% 75.97 0.0
30 23:15 Calm 12.87 Partly Cloudy SCT024 10 10 100% 75.97 0.0
30 22:55 E 7 12.87 A Few Clouds FEW023 10 10 100% 9 75.97 0.0
30 22:35 Calm 12.87 Partly Cloudy SCT022 10 10 100% 75.97 0.0
30 22:15 Calm 12.87 Partly Cloudy SCT023 11 10 94% 75.97 0.0
30 21:55 Calm 12.87 Partly Cloudy SCT023 11 11 100% 75.97 0.0
30 21:35 Calm 12.87 Mostly Cloudy BKN022 11 11 100% 75.95 0.0
30 21:15 NW 9 12.87 Mostly Cloudy BKN021 14 12 88% 75.95 0.0
30 20:55 NW 9 12.87 Mostly Cloudy BKN020 14 12 88% 75.95 0.0
30 20:35 NW 9 12.87 Mostly Cloudy BKN020 14 12 88% 75.92 0.0
30 20:15 NW 11 12.87 Mostly Cloudy BKN021 BKN026 15 13 88% 75.92 0.0
30 19:55 NW 15 12.87 Mostly Cloudy BKN020 15 13 88% 75.92 0.0
30 19:35 NW 15 12.87 Partly Cloudy SCT021 15 13 88% 75.9 0.0
30 19:15 NW 15 12.87 Partly Cloudy SCT022 15 13 88% 75.9 0.0
30 18:55 NW 15 11.27 Partly Cloudy SCT022 15 13 88% 75.9 0.0
30 18:35 NW 13 12.87 A Few Clouds FEW022 15 12 82% 75.87 0.0
30 18:15 NW 13 11.27 Fair CLR 15 12 82% 75.87 0.0
30 17:55 NW 15 11.27 Fair CLR 16 12 77% 75.87 0.0
30 17:35 NW 11 11.27 Fair CLR 16 12 77% 75.87 0.0
30 17:15 NW 13 9.66 Fair with Haze CLR 16 12 77% 75.87 0.0
30 16:55 NW 13 11.27 A Few Clouds FEW021 17 12 73% 75.87 0.0
30 16:35 NW 15 11.27 A Few Clouds FEW021 17 12 73% 75.87 0.0
30 16:15 NW 13 9.66 Fair with Haze CLR 17 12 73% 75.87 0.0
30 15:55 NW 17 11.27 Fair CLR 17 12 73% 75.87 0.0
30 15:35 NW 15 11.27 Fair CLR 17 12 73% 75.84 0.0
30 15:15 NW 13 9.66 Fair with Haze CLR 18 12 68% 75.87 0.0
30 14:55 NW 11 11.27 Fair CLR 18 12 68% 75.87 0.0
30 14:35 NW 13 12.87 Fair CLR 18 12 68% 75.87 0.0
30 14:15 W 11 11.27 A Few Clouds FEW023 18 12 68% 75.87 0.0
30 13:55 Vrbl 9 G 19 11.27 Fair CLR 18 12 68% 75.87 0.0
30 13:35 Vrbl 11 11.27 A Few Clouds FEW025 18 12 68% 75.9 0.0
30 13:15 W 13 9.66 Mostly Cloudy with Haze BKN024 18 12 68% 75.9 0.0
30 12:55 Vrbl 9 12.87 A Few Clouds FEW022 18 13 73% 75.9 0.0
30 12:35 W 9 11.27 Fair CLR 18 12 68% 75.92 0.0
30 12:15 Vrbl 9 9.66 A Few Clouds with Haze FEW023 18 12 68% 75.95 0.0
30 11:55 SW 9 9.66 Fair with Haze CLR 18 12 68% 75.97 0.0
30 11:35 SW 9 9.66 Fair with Haze CLR 17 12 73% 75.97 0.0
30 11:15 W 11 12.87 Fair CLR 17 12 73% 75.95 0.0
30 10:55 Vrbl 9 9.66 A Few Clouds with Haze FEW025 18 12 68% 75.95 0.0
30 10:35 W 9 11.27 Mostly Cloudy BKN025 BKN031 17 12 73% 75.95 0.0
30 10:15 W 13 9.66 Overcast with Haze BKN022 OVC029 17 13 77% 75.95 0.0
30 09:55 Calm 8.05 Mostly Cloudy with Haze FEW023 BKN030 17 14 83% 75.92 0.0
30 09:35 Calm 8.05 Fog/Mist BKN031 16 14 88% 75.92 0.0
30 09:15 Calm 9.66 Fog/Mist OVC031 15 14 94% 75.92 0.0
30 08:55 Calm 11.27 Overcast BKN024 OVC030 14 14 100% 75.92 0.0
30 08:35 Calm 11.27 Overcast SCT021 OVC026 13 13 100% 75.9 0.0
30 08:15 Calm 9.66 Fog/Mist BKN019 BKN024 OVC028 12 12 100% 75.9 0.0
30 07:55 Calm 9.66 Fog/Mist BKN020 BKN028 OVC032 12 12 100% 75.9 0.0
30 07:35 Calm 12.87 Overcast BKN021 BKN028 OVC033 12 12 100% 75.87 0.0
30 07:15 Calm 14.48 Mostly Cloudy FEW019 SCT024 BKN028 11 11 100% 75.84 0.0
30 06:55 Calm 12.87 Mostly Cloudy BKN027 BKN031 BKN039 11 11 100% 75.84 0.0
30 06:35 Calm 12.87 Overcast OVC027 12 12 100% 75.84 0.0
30 06:15 Calm 14.48 Overcast FEW021 OVC028 11 11 100% 75.84 0.0
30 05:55 Calm 12.87 Mostly Cloudy BKN024 11 11 100% 75.84 0.0
30 05:35 Calm 12.87 Mostly Cloudy SCT018 BKN025 11 11 100% 75.84 0.0
30 05:15 Calm 12.87 Mostly Cloudy BKN018 BKN044 BKN050 11 11 100% 75.84 0.0
30 04:35 Calm 12.87 Mostly Cloudy BKN050 11 11 100% 75.84 0.0
30 04:15 E 6 14.48 Mostly Cloudy FEW017 BKN048 11 11 100% 75.84 0.0
30 03:55 Calm 14.48 Mostly Cloudy SCT017 SCT041 BKN050 11 11 100% 75.84 0.0
30 03:35 Calm 14.48 Overcast BKN043 OVC050 11 11 100% 75.84 0.0
30 03:15 Calm 14.48 Mostly Cloudy BKN044 BKN050 10 10 100% 75.87 0.0
30 02:55 Calm 14.48 Fair CLR 0 0 0% 75.87 0.0
30 02:35 Calm 12.87 Fair CLR 9 9 100% 75.87 0.0
30 02:15 Calm 14.48 Partly Cloudy FEW015 FEW044 SCT050 10 10 100% 75.87 0.0
30 01:55 Calm 14.48 A Few Clouds FEW015 FEW043 10 10 100% 75.9 0.0
30 01:35 Calm 14.48 Partly Cloudy FEW048 SCT055 10 10 100% 75.9 0.0
30 01:15 Calm 14.48 Overcast BKN049 OVC060 11 10 94% 75.9 0.0
30 00:55 Calm 12.87 Overcast OVC049 11 11 100% 75.87 0.0
30 00:35 Calm 14.48 Overcast OVC050 12 11 94% 75.87 0.0
30 00:15 Calm 14.48 Overcast OVC050 12 11 94% 75.87 0.0
29 23:55 Calm 14.48 Overcast BKN050 OVC065 12 11 94% 75.9 0.0
29 23:35 Calm 14.48 Overcast BKN050 OVC060 11 10 94% 75.9 0.0
29 23:15 Calm 14.48 Overcast BKN050 OVC065 12 11 94% 75.87 0.0
29 22:55 NE 7 14.48 Overcast FEW036 SCT043 OVC055 12 11 94% 75.87 0.0
29 22:35 Calm 14.48 Overcast FEW035 BKN043 OVC070 12 11 94% 75.87 0.0
29 22:15 Calm 12.87 Overcast SCT043 BKN049 OVC070 12 11 94% 75.87 0.0
29 21:55 Calm 14.48 Overcast BKN050 OVC060 0 0 0% 75.87 0.0
29 21:35 Calm 12.87 Overcast OVC055 12 11 94% 75.87 0.0
29 21:15 Calm 12.87 Overcast BKN050 OVC055 12 10 88% 75.87 0.0
29 20:55 Calm 14.48 Overcast FEW049 OVC055 12 10 88% 75.87 0.0
29 20:35 Calm 14.48 Overcast BKN050 OVC055 13 10 82% 75.87 0.0
29 20:15 Calm 14.48 Overcast SCT048 OVC055 0 0 0% 75.87 0.0
29 19:55 Calm 12.87 Overcast OVC049 13 11 88% 75.87 0.0
29 19:35 Calm 12.87 Overcast BKN050 OVC060 13 12 94% 75.87 0.0
29 19:15 Calm 12.87 Overcast FEW048 OVC055 14 12 88% 75.87 0.0
29 18:55 Calm 14.48 Mostly Cloudy BKN050 14 13 94% 75.87 0.0
29 18:35 Calm 12.87 A Few Clouds FEW046 FEW055 15 13 88% 75.84 0.0
29 18:15 N 6 12.87 Fair CLR 16 13 83% 75.84 0.0
29 17:55 N 7 9.66 Fair with Haze CLR 16 13 83% 75.87 0.0
29 17:35 NW 9 11.27 Fair CLR 17 13 77% 75.84 0.0
29 17:15 NW 11 11.27 Fair CLR 17 13 77% 75.84 0.0
29 16:55 NW 7 11.27 Fair CLR 17 13 77% 75.84 0.0
29 16:35 NW 7 11.27 Fair CLR 17 13 77% 75.84 0.0
29 16:15 NW 11 11.27 Fair CLR 17 13 77% 75.84 0.0
29 15:55 W 11 9.66 Fair with Haze CLR 18 13 73% 75.84 0.0
29 15:35 W 7 9.66 Fair with Haze CLR 18 12 68% 75.84 0.0
29 15:15 W 6 9.66 Fair with Haze CLR 18 12 68% 75.84 0.0
29 14:55 Calm 11.27 Fair CLR 19 12 64% 75.87 0.0
29 14:35 S 7 12.87 Fair CLR 19 11 60% 75.87 0.0
29 14:15 S 7 12.87 Fair CLR 19 9 52% 75.9 0.0
29 13:55 Vrbl 7 11.27 Fair CLR 19 11 60% 75.92 0.0
29 13:35 SW 7 11.27 Fair CLR 19 10 56% 75.92 0.0
29 13:15 S 7 11.27 Fair CLR 19 10 56% 75.95 0.0
29 12:55 Calm 11.27 Fair CLR 18 12 68% 75.97 0.0
29 12:35 Calm 11.27 Fair CLR 18 11 64% 75.97 0.0
29 12:15 Vrbl 7 11.27 Fair CLR 18 12 68% 76 0.0
29 11:55 Calm 11.27 Fair CLR 17 11 68% 76 0.0
29 11:35 Calm 11.27 Fair CLR 17 11 68% 76 0.0
29 11:15 W 9 9.66 Fair with Haze CLR 17 9 60% 76 0.0
29 10:55 Vrbl 6 12.87 Fair CLR 19 12 64% 76.02 0.0
29 10:35 Calm 14.48 Fair CLR 18 6 46% 76 0.0
29 10:15 Calm 11.27 Fair CLR 17 8 56% 76 0.0
29 09:55 Calm 6.44 Fair with Haze CLR 16 8 59% 76.02 0.0
29 09:35 Calm 11.27 Fair CLR 0 0 0% 76.02 0.0
29 09:15 Calm 14.48 Fair CLR 13 11 88% 76 0.0
29 08:55 Calm 12.87 Fair CLR 11 9 88% 76 0.0
29 08:35 Calm 12.87 Fair CLR 11 8 82% 75.97 0.0
29 08:15 E 7 11.27 Fair CLR 9 8 94% 8 75.97 0.0
29 07:55 Calm 12.87 Fair CLR 8 7 93% 75.97 0.0
29 07:35 Calm 14.48 A Few Clouds FEW003 7 6 93% 75.97 0.0
29 07:15 Calm 14.48 Fair CLR 7 7 100% 75.97 0.0
29 06:55 Calm 14.48 Fair CLR 0 0 0% 75.97 0.0
29 06:35 Calm 14.48 Fair CLR 9 7 87% 75.97 0.0
29 06:15 Calm 16.09 Fair CLR 8 7 93% 75.97 0.0
29 05:55 Calm 14.48 Fair CLR 9 7 87% 75.97 0.0
29 05:35 NE 7 14.48 Fair CLR 9 7 87% 8 75.97 0.0
29 05:15 Calm 16.09 Fair CLR 9 7 87% 75.97 0.0
29 04:55 Calm 16.09 Fair CLR 8 7 93% 75.97 0.0
29 04:35 Calm 14.48 Fair CLR 9 7 87% 75.97 0.0
29 04:15 E 6 14.48 Fair CLR 8 7 93% 76 0.0
29 03:55 Calm 14.48 Fair CLR 8 7 93% 76 0.0
29 03:35 Calm 16.09 Fair CLR 8 6 87% 76 0.0
29 03:15 Calm 14.48 Fair CLR 8 6 87% 76 0.0
29 02:55 NE 9 14.48 Fair CLR 8 6 87% 7 76.02 0.0
29 02:35 Calm 14.48 Fair CLR 7 6 93% 76.05 0.0
29 02:15 Calm 14.48 Fair CLR 8 6 87% 76.05 0.0
29 01:55 Calm 14.48 Fair CLR 7 6 93% 76.07 0.0
29 01:35 Calm 14.48 Fair CLR 7 6 93% 76.1 0.0
29 01:15 Calm 14.48 Fair CLR 7 6 93% 76.1 0.0
29 00:55 Calm 14.48 Fair CLR 7 6 93% 76.1 0.0
29 00:35 Calm 14.48 Fair CLR 7 6 93% 76.1 0.0
29 00:15 Calm 14.48 Fair CLR 0 0 0% 76.12 0.0
28 23:55 Calm 14.48 Fair CLR 7 6 93% 76.1 0.0
28 23:35 Calm 14.48 Fair CLR 7 6 93% 76.12 0.0
28 23:15 Calm 14.48 Fair CLR 8 6 87% 76.12 0.0
28 22:55 Calm 14.48 Fair CLR 9 6 82% 76.15 0.0
28 22:35 Calm 14.48 Fair CLR 9 6 82% 76.15 0.0
28 22:15 Calm 16.09 Fair CLR 8 7 93% 76.15 0.0
28 21:55 Calm 14.48 Fair CLR 9 6 82% 76.15 0.0
28 21:35 Calm 14.48 Fair CLR 0 0 0% 76.15 0.0
28 21:15 E 6 14.48 Fair CLR 9 7 87% 76.12 0.0
28 20:55 Calm 14.48 Fair CLR 10 8 88% 76.12 0.0
28 20:35 Calm 14.48 Fair CLR 12 9 82% 76.12 0.0
28 20:15 Calm 12.87 Fair CLR 12 9 82% 76.12 0.0
28 19:55 N 7 14.48 Fair CLR 14 11 82% 76.12 0.0
28 19:35 N 7 12.87 Fair CLR 0 0 0% 76.12 0.0
28 19:15 Vrbl 9 12.87 Fair CLR 15 12 82% 76.1 0.0
28 18:55 Vrbl 7 11.27 Fair CLR 15 13 88% 76.1 0.0
28 18:35 N 11 11.27 Fair CLR 15 12 82% 76.12 0.0
28 18:15 N 19 11.27 Fair CLR 15 12 82% 76.1 0.0
28 17:55 N 17 11.27 Fair CLR 16 12 77% 76.12 0.0
28 17:35 N 19 9.66 Fair with Haze CLR 16 13 83% 76.12 0.0
28 17:15 N 20 11.27 Fair CLR 17 13 77% 76.12 0.0
28 16:55 N 19 11.27 Fair CLR 17 13 77% 76.12 0.0
28 16:35 N 20 12.87 Fair CLR 17 12 73% 76.15 0.0
28 16:15 N 20 12.87 Fair CLR 0 0 0% 76.15 0.0
28 15:55 N 22 11.27 Fair CLR 18 12 68% 76.15 0.0
28 15:35 N 24 11.27 Fair CLR 18 12 68% 76.15 0.0
28 15:15 N 28 12.87 Fair CLR 18 12 68% 76.15 0.0
28 14:55 NW 26 12.87 Fair CLR 18 13 73% 76.17 0.0
28 14:35 NW 26 11.27 Fair CLR 18 12 68% 76.17 0.0
28 14:15 NW 28 14.48 Fair CLR 18 12 68% 76.17 0.0
28 13:55 NW 28 12.87 Fair CLR 18 9 56% 76.2 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)