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.
04 17:15 E 22 G 37 12.87 Fair CLR 14 4 51% 76.76 0.0
04 16:55 E 22 G 31 12.87 Fair CLR 14 5 55% 76.76 0.0
04 16:35 NE 22 G 35 11.27 Fair CLR 14 5 55% 76.73 0.0
04 16:15 NE 26 14.48 Fair CLR 15 3 45% 76.73 0.0
04 15:55 NE 24 12.87 Fair CLR 15 5 51% 76.71 0.0
04 15:35 E 31 12.87 Fair CLR 15 5 51% 76.71 0.0
04 15:15 Calm 12.87 Fair CLR 16 5 48% 76.71 0.0
04 14:55 NW 9 G 20 14.48 Fair CLR 16 4 45% 76.71 0.0
04 14:35 NE 19 14.48 Fair CLR 16 5 48% 76.68 0.0
04 14:15 NE 11 14.48 Fair CLR 16 5 48% 76.68 0.0
04 13:55 SW 9 G 20 14.48 Fair CLR 16 5 48% 76.71 0.0
04 13:35 E 19 G 31 14.48 Fair CLR 16 5 48% 76.71 0.0
04 13:15 NE 28 G 43 12.87 Fair CLR 15 5 51% 76.73 0.0
04 12:55 NE 26 G 37 12.87 Fair CLR 15 5 51% 76.73 0.0
04 12:35 NE 24 G 35 12.87 Fair CLR 15 5 51% 76.76 0.0
04 12:15 NE 26 G 39 12.87 Fair CLR 15 5 51% 76.76 0.0
04 11:55 NE 33 G 43 12.87 Fair and Breezy CLR 15 5 51% 76.78 0.0
04 11:35 N 22 G 31 14.48 Fair CLR 15 4 48% 76.78 0.0
04 11:15 NE 22 G 37 12.87 Fair CLR 14 4 51% 76.86 0.0
04 10:55 NE 17 G 28 11.27 Fair CLR 15 4 48% 76.84 0.0
04 10:35 E 17 G 33 11.27 Fair CLR 14 6 59% 76.86 0.0
04 10:15 NE 11 G 30 11.27 Fair CLR 13 6 63% 76.86 0.0
04 09:55 E 15 12.87 Fair CLR 14 5 55% 76.86 0.0
04 09:35 E 9 G 26 12.87 Fair CLR 14 5 55% 76.86 0.0
04 09:15 NE 17 14.48 Fair CLR 13 3 51% 76.84 0.0
04 08:55 Vrbl 11 12.87 Fair CLR 12 4 58% 76.84 0.0
04 08:35 Vrbl 7 G 19 12.87 Fair CLR 12 5 63% 76.84 0.0
04 08:15 NE 13 G 30 12.87 Fair CLR 11 6 72% 76.81 0.0
04 07:55 NE 26 11.27 Fair CLR 11 5 67% 76.78 0.0
04 07:35 NE 24 G 37 12.87 Fair CLR 11 5 67% 76.78 0.0
04 07:15 NE 31 14.48 Fair CLR 11 4 62% 76.76 0.0
04 06:55 NE 22 16.09 Fair CLR 12 2 51% 76.73 0.0
04 06:35 NE 24 14.48 Fair CLR 12 2 51% 76.73 0.0
04 06:15 NE 20 16.09 Fair CLR 12 2 51% 76.71 0.0
04 05:55 NE 13 16.09 Fair CLR 10 3 62% 8 76.71 0.0
04 05:35 E 11 G 22 16.09 Fair CLR 11 3 58% 76.71 0.0
04 05:15 NE 20 16.09 Fair CLR 12 2 51% 76.68 0.0
04 04:55 NE 20 16.09 Fair CLR 12 1 47% 76.66 0.0
04 04:35 NE 19 16.09 Fair CLR 12 1 47% 76.66 0.0
04 04:15 NE 20 16.09 Fair CLR 11 2 54% 76.66 0.0
04 03:55 Calm 16.09 Fair CLR 6 2 76% 76.68 0.0
04 03:35 Calm 14.48 Fair CLR 5 3 87% 76.68 0.0
04 03:15 Calm 16.09 Fair CLR 6 3 81% 76.68 0.0
04 02:55 Calm 16.09 Fair CLR 4 3 93% 76.68 0.0
04 02:35 Calm 16.09 Fair CLR 5 3 87% 76.68 0.0
04 02:15 Calm 16.09 Fair CLR 4 3 93% 76.68 0.0
04 01:55 Calm 14.48 Fair CLR 6 3 81% 76.68 0.0
04 01:35 Calm 14.48 Fair CLR 6 3 81% 76.68 0.0
04 01:15 NE 6 14.48 Fair CLR 7 3 76% 76.68 0.0
04 00:55 Calm 14.48 Fair CLR 5 3 87% 76.71 0.0
04 00:35 Calm 16.09 Fair CLR 7 3 76% 76.68 0.0
04 00:15 Calm 16.09 Fair CLR 6 3 81% 76.71 0.0
03 23:55 Calm 16.09 Fair CLR 7 3 76% 76.68 0.0
03 23:35 Calm 16.09 Fair CLR 6 3 81% 76.68 0.0
03 23:15 Calm 16.09 Fair CLR 6 3 81% 76.68 0.0
03 22:55 Calm 14.48 Fair CLR 7 3 76% 76.66 0.0
03 22:35 Calm 16.09 Fair CLR 6 3 81% 76.66 0.0
03 22:15 Calm 16.09 Fair CLR 6 4 87% 76.66 0.0
03 21:55 E 9 14.48 Fair CLR 7 3 76% 5 76.63 0.0
03 21:35 NE 7 14.48 Fair CLR 7 3 76% 6 76.63 0.0
03 21:15 Calm 14.48 Fair CLR 9 3 66% 76.63 0.0
03 20:55 Vrbl 6 16.09 Fair CLR 8 3 71% 76.63 0.0
03 20:35 Calm 14.48 Fair CLR 8 3 71% 76.61 0.0
03 20:15 Calm 16.09 Fair CLR 8 3 71% 76.61 0.0
03 19:55 Vrbl 6 14.48 Fair CLR 9 3 66% 76.61 0.0
03 19:35 Calm 14.48 Fair CLR 10 3 62% 76.61 0.0
03 19:15 Calm 16.09 Fair CLR 9 3 66% 76.58 0.0
03 18:55 Calm 14.48 Fair CLR 10 3 62% 76.58 0.0
03 18:35 N 7 16.09 Fair CLR 10 3 62% 9 76.56 0.0
03 18:15 Calm 16.09 Fair CLR 10 3 62% 76.53 0.0
03 17:55 N 9 14.48 Fair CLR 11 3 58% 76.53 0.0
03 17:35 NE 9 14.48 Fair CLR 11 4 62% 76.53 0.0
03 17:15 N 11 14.48 Fair CLR 11 5 67% 76.5 0.0
03 16:55 N 13 12.87 Fair CLR 13 5 59% 76.5 0.0
03 16:35 N 13 11.27 Fair CLR 14 5 55% 76.5 0.0
03 16:15 N 13 11.27 Fair CLR 14 7 63% 76.48 0.0
03 15:55 N 15 12.87 Fair CLR 15 7 59% 76.45 0.0
03 15:35 N 15 G 26 12.87 Fair CLR 15 8 63% 76.45 0.0
03 15:15 N 20 14.48 Fair CLR 16 5 48% 76.43 0.0
03 14:55 N 9 14.48 Fair CLR 17 3 39% 76.43 0.0
03 14:35 N 17 12.87 Fair CLR 16 5 48% 76.43 0.0
03 14:15 NW 17 11.27 Fair CLR 17 5 45% 76.43 0.0
03 13:55 Vrbl 7 12.87 Fair CLR 17 4 42% 76.4 0.0
03 13:35 E 22 14.48 Fair CLR 18 0 30% 76.4 0.0
03 13:15 E 20 G 33 14.48 Fair CLR 18 0 30% 76.4 0.0
03 12:55 NE 17 14.48 Fair CLR 18 -1 28% 76.43 0.0
03 12:35 Vrbl 6 G 35 14.48 Fair CLR 17 -1 30% 76.43 0.0
03 12:15 NE 26 G 41 14.48 Fair CLR 18 -1 28% 76.45 0.0
03 11:55 Vrbl 7 G 30 14.48 Fair CLR 18 0 30% 76.45 0.0
03 11:35 N 17 G 31 12.87 Fair CLR 17 -1 30% 76.48 0.0
03 11:15 N 9 G 20 12.87 Fair CLR 16 0 34% 76.5 0.0
03 10:55 N 15 14.48 Fair CLR 16 0 34% 76.53 0.0
03 10:35 Vrbl 7 14.48 Fair CLR 15 1 39% 76.56 0.0
03 10:15 Calm 14.48 Fair CLR 15 1 39% 76.56 0.0
03 09:55 NW 9 14.48 Fair CLR 14 2 44% 76.53 0.0
03 09:35 NW 6 G 20 11.27 Fair CLR 15 2 42% 76.53 0.0
03 09:15 NW 13 14.48 Fair CLR 14 1 41% 76.45 0.0
03 08:55 N 17 14.48 Fair CLR 14 2 44% 76.45 0.0
03 08:35 NW 15 G 28 14.48 Fair CLR 13 2 47% 76.43 0.0
03 08:15 W 11 14.48 Fair CLR 13 2 47% 76.4 0.0
03 07:55 NW 13 12.87 Fair CLR 12 3 54% 76.38 0.0
03 07:35 W 11 11.27 Fair CLR 11 4 62% 76.38 0.0
03 07:15 Vrbl 11 12.87 Fair CLR 12 2 51% 76.35 0.0
03 06:55 NW 9 14.48 Fair CLR 11 4 62% 76.33 0.0
03 06:35 Calm 12.87 Fair CLR 11 4 62% 76.33 0.0
03 06:15 W 9 14.48 Fair CLR 13 3 51% 76.3 0.0
03 05:55 Vrbl 7 G 22 14.48 Fair CLR 12 3 54% 76.28 0.0
03 05:35 Vrbl 6 14.48 Fair CLR 12 4 58% 76.28 0.0
03 05:15 NE 15 G 35 16.09 Fair CLR 12 4 58% 76.25 0.0
03 04:55 NE 13 14.48 Fair CLR 12 5 63% 76.25 0.0
03 04:35 NE 20 G 33 14.48 Fair CLR 13 4 55% 76.23 0.0
03 04:15 E 13 G 39 14.48 Fair CLR 13 4 55% 76.23 0.0
03 03:55 E 15 14.48 Fair CLR 13 4 55% 76.2 0.0
03 03:35 NE 17 16.09 Fair CLR 13 5 59% 76.2 0.0
03 03:15 Vrbl 11 G 24 14.48 Fair CLR 12 6 67% 76.2 0.0
03 02:55 W 13 12.87 Fair CLR 12 6 67% 76.2 0.0
03 02:35 Vrbl 6 12.87 Fair CLR 12 7 72% 76.2 0.0
03 02:15 Calm 14.48 Fair CLR 12 7 72% 76.23 0.0
03 01:55 W 11 12.87 Fair CLR 12 7 72% 76.2 0.0
03 01:35 Calm 12.87 Fair CLR 12 7 72% 76.2 0.0
03 01:15 NW 17 11.27 Fair CLR 11 8 82% 76.23 0.0
03 00:55 Vrbl 9 11.27 Fair CLR 10 9 94% 9 76.23 0.0
03 00:35 Vrbl 9 9.66 Fog/Mist CLR 11 10 94% 76.23 0.0
03 00:15 Calm 9.66 Fog/Mist CLR 11 11 100% 76.25 0.0
02 23:55 E 24 9.66 Fog/Mist CLR 11 11 100% 76.23 0.0
02 23:35 E 26 11.27 Fair CLR 10 10 100% 7 76.2 0.0
02 23:15 Calm 11.27 Fair CLR 8 8 100% 76.25 0.0
02 22:55 Calm 9.66 Fog/Mist CLR 9 9 100% 76.23 0.0
02 22:35 Calm 9.66 Fog/Mist CLR 9 9 100% 76.23 0.0
02 22:15 Calm 11.27 Mostly Cloudy BKN013 10 10 100% 76.2 0.0
02 21:55 Calm 9.66 Fog/Mist OVC013 10 10 100% 76.2 0.0
02 21:35 Calm 11.27 Overcast OVC013 11 11 100% 76.23 0.0
02 21:15 Calm 9.66 Fog/Mist OVC013 11 11 100% 76.2 0.0
02 20:55 Calm 11.27 Overcast OVC014 12 12 100% 76.2 0.0
02 20:35 Calm 11.27 Overcast OVC015 12 12 100% 76.23 0.0
02 20:15 Calm 11.27 Overcast OVC015 12 12 100% 76.25 0.0
02 19:55 Calm 12.87 Overcast OVC016 12 12 100% 76.25 0.0
02 19:35 Calm 11.27 Overcast OVC014 12 11 94% 76.25 0.0
02 19:15 Calm 12.87 Overcast BKN012 OVC017 12 12 100% 76.25 0.0
02 18:55 Calm 11.27 Overcast OVC012 12 12 100% 76.25 0.0
02 18:35 Calm 12.87 Overcast OVC012 12 12 100% 76.25 0.0
02 18:15 Calm 12.87 Overcast OVC011 12 12 100% 76.25 0.0
02 17:55 Calm 12.87 Overcast OVC009 12 12 100% 76.25 0.0
02 17:35 NW 13 11.27 Mostly Cloudy BKN008 BKN013 12 12 100% 76.25 0.0
02 17:15 NW 13 9.66 Fog/Mist FEW008 12 12 100% 76.25 0.0
02 16:55 NW 13 6.44 Fog/Mist CLR 12 12 100% 76.25 0.0
02 16:35 N 15 8.05 Fog/Mist CLR 12 12 100% 76.25 0.0
02 16:15 N 15 11.27 Fair CLR 13 12 94% 76.25 0.0
02 15:55 NW 19 G 30 11.27 Fair CLR 13 12 94% 76.28 0.0
02 15:35 NW 24 9.66 Fog/Mist CLR 14 12 88% 76.28 0.0
02 15:15 NW 20 G 30 9.66 Fair with Haze CLR 14 12 88% 76.25 0.0
02 14:55 NW 20 G 30 11.27 Fair CLR 15 10 72% 76.23 0.0
02 14:35 NW 26 12.87 NULL NULL 15 11 77% 76.25 0.0
02 14:15 NW 24 0.00 NULL NULL 0 0 0% 76.23 0.0
02 13:55 NW 20 8.05 Fair with Haze CLR 16 11 72% 76.23 0.0
02 13:35 NW 20 9.66 Fair with Haze CLR 17 11 68% 76.25 0.0
02 13:15 NW 20 11.27 Fair CLR 17 10 64% 76.28 0.0
02 12:55 Calm 14.48 Fair CLR 19 5 40% 76.28 0.0
02 12:35 Calm 11.27 Fair CLR 18 7 49% 76.3 0.0
02 12:15 Vrbl 6 11.27 Fair CLR 19 6 43% 76.33 0.0
02 11:55 SE 11 11.27 Fair CLR 19 8 49% 76.35 0.0
02 11:35 Calm 12.87 Fair CLR 18 7 49% 76.38 0.0
02 11:15 Calm 9.66 Fair with Haze CLR 17 8 56% 76.4 0.0
02 10:55 NW 13 9.66 Fair with Haze CLR 16 10 68% 76.4 0.0
02 10:35 Calm 9.66 Fair with Haze CLR 17 8 56% 76.43 0.0
02 10:15 SE 7 8.05 Fair with Haze CLR 16 11 72% 76.43 0.0
02 09:55 Calm 6.44 Fair with Haze CLR 16 9 63% 76.45 0.0
02 09:35 NW 7 8.05 Fair with Haze CLR 15 10 72% 76.45 0.0
02 09:15 NW 9 6.44 Fair with Haze CLR 14 12 88% 76.45 0.0
02 08:55 Calm 4.83 Fair with Haze CLR 13 10 82% 76.43 0.0
02 08:35 W 6 11.27 Fair CLR 13 10 82% 76.43 0.0
02 08:15 Calm 11.27 Fair CLR 10 9 94% 76.4 0.0
02 07:55 Calm 9.66 Fog/Mist CLR 9 7 87% 76.4 0.0
02 07:35 Calm 9.66 Fog/Mist CLR 9 7 87% 76.4 0.0
02 07:15 Calm 12.87 Fair CLR 9 7 87% 76.4 0.0
02 06:55 SE 6 12.87 Fair CLR 8 7 93% 76.4 0.0
02 06:35 N 7 12.87 Fair CLR 8 7 93% 7 76.4 0.0
02 06:15 N 9 12.87 Fair CLR 8 8 100% 7 76.38 0.0
02 05:55 NW 6 12.87 Fair CLR 8 8 100% 76.38 0.0
02 05:35 Calm 8.05 Fog/Mist CLR 8 8 100% 76.35 0.0
02 05:15 Calm 14.48 Fair CLR 7 7 100% 76.38 0.0
02 04:55 SE 6 14.48 Fair CLR 7 7 100% 76.4 0.0
02 04:35 Calm 14.48 Fair CLR 7 6 93% 76.43 0.0
02 04:15 Calm 12.87 Fair CLR 6 6 100% 76.45 0.0
02 03:55 Calm 11.27 Fair CLR 6 6 100% 76.45 0.0
02 03:15 Calm 11.27 Fair CLR 7 7 100% 76.43 0.0
02 02:55 Calm 11.27 Fair CLR 6 6 100% 76.43 0.0
02 02:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.4 0.0
02 02:15 Calm 8.05 Fog/Mist CLR 6 6 100% 76.4 0.0
02 01:55 Calm 11.27 Fair CLR 6 6 100% 76.4 0.0
02 01:35 Calm 12.87 Fair CLR 6 6 100% 76.38 0.0
02 01:15 Calm 6.44 Fog/Mist CLR 6 6 100% 76.4 0.0
02 00:55 Calm 11.27 Fair CLR 7 7 100% 76.4 0.0
02 00:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.43 0.0
02 00:15 Calm 9.66 Fog/Mist CLR 6 6 100% 76.43 0.0
01 23:55 Calm 8.05 Fog/Mist CLR 6 6 100% 76.43 0.0
01 23:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.43 0.0
01 23:15 Calm 6.44 Fog/Mist CLR 6 6 100% 76.45 0.0
01 22:55 Calm 8.05 Fog/Mist CLR 6 6 100% 76.45 0.0
01 22:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.45 0.0
01 22:15 Calm 11.27 Fair CLR 6 6 100% 76.45 0.0
01 21:55 Calm 11.27 Fair CLR 7 6 93% 76.45 0.0
01 21:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.45 0.0
01 21:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.45 0.0
01 20:55 Calm 11.27 Fair CLR 7 7 100% 76.43 0.0
01 20:35 Calm 9.66 Fog/Mist CLR 7 7 100% 76.43 0.0
01 20:15 Calm 11.27 Fair CLR 9 7 87% 76.43 0.0
01 19:55 Calm 6.44 Fog/Mist CLR 7 7 100% 76.4 0.0
01 19:35 N 7 8.05 Fog/Mist SCT002 8 7 93% 7 76.4 0.0
01 19:15 Calm 11.27 Partly Cloudy SCT002 9 7 87% 76.38 0.0
01 18:55 SE 7 11.27 Fair CLR 9 7 87% 8 76.38 0.0
01 18:35 NE 7 11.27 Fair CLR 9 7 87% 8 76.38 0.0
01 18:15 Calm 9.66 Fog/Mist CLR 9 7 87% 76.38 0.0
01 17:55 Calm 11.27 Fair CLR 12 8 77% 76.38 0.0
01 17:35 E 13 9.66 Fair with Haze CLR 11 8 82% 76.38 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)