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.
17 00:35 Calm 12.87 Fair CLR 12 6 67% 76.33 0.0
17 00:15 Calm 14.48 Fair CLR 13 5 59% 76.35 0.0
16 23:55 Calm 14.48 Fair CLR 13 5 59% 76.35 0.0
16 23:35 Calm 16.09 Fair CLR 13 5 59% 76.35 0.0
16 23:15 Calm 14.48 Fair CLR 15 3 45% 76.33 0.0
16 22:55 Calm 16.09 Fair CLR 14 3 48% 76.33 0.0
16 22:35 Calm 16.09 Fair CLR 0 0 0% 76.33 0.0
16 22:15 Calm 14.48 Fair CLR 15 3 45% 76.33 0.0
16 21:55 Calm 14.48 Fair CLR 14 5 55% 76.33 0.0
16 21:35 Calm 14.48 Fair CLR 15 5 51% 76.33 0.0
16 21:15 Calm 14.48 Fair CLR 16 5 48% 76.3 0.0
16 20:55 NE 6 14.48 Fair CLR 16 3 42% 76.3 0.0
16 20:35 Calm 14.48 Fair CLR 18 3 37% 76.3 0.0
16 20:15 Calm 14.48 Fair CLR 20 2 30% 76.28 0.0
16 19:55 N 9 14.48 Fair CLR 0 0 0% 76.28 0.0
16 19:35 Calm 14.48 Fair CLR 20 4 35% 76.25 0.0
16 19:15 Calm 14.48 Fair CLR 20 4 35% 76.25 0.0
16 18:55 N 6 14.48 Fair CLR 21 3 31% 76.25 0.0
16 18:35 NE 7 11.27 Fair CLR 22 3 29% 76.25 0.0
16 18:15 N 7 14.48 Fair CLR 24 4 27% 25 76.25 0.0
16 17:55 N 11 14.48 Fair CLR 25 3 24% 25 76.25 0.0
16 17:35 NW 9 G 20 12.87 Fair CLR 25 3 24% 25 76.28 0.0
16 17:15 N 13 12.87 Fair CLR 26 4 24% 26 76.28 0.0
16 16:55 N 13 14.48 Fair CLR 26 5 26% 26 76.28 0.0
16 16:35 N 13 11.27 Fair CLR 26 7 30% 26 76.3 0.0
16 16:15 NW 17 11.27 Fair CLR 25 7 32% 25 76.3 0.0
16 15:55 NW 9 12.87 Fair CLR 25 8 34% 26 76.33 0.0
16 15:35 NW 9 12.87 Fair CLR 25 8 34% 26 76.33 0.0
16 15:15 NW 9 11.27 Fair CLR 24 8 36% 25 76.33 0.0
16 14:55 W 7 12.87 Fair CLR 24 8 36% 25 76.33 0.0
16 14:35 W 9 11.27 Fair CLR 0 0 0% 76.35 0.0
16 14:15 W 9 12.87 Fair CLR 24 10 41% 25 76.35 0.0
16 13:55 SW 11 11.27 Fair CLR 23 10 44% 76.38 0.0
16 13:35 SW 9 11.27 Fair CLR 23 11 47% 76.38 0.0
16 13:15 Vrbl 7 11.27 Fair CLR 22 13 57% 76.4 0.0
16 12:55 S 11 9.66 Fair with Haze CLR 22 12 53% 76.4 0.0
16 12:35 S 13 11.27 Fair CLR 21 12 57% 76.4 0.0
16 12:15 S 17 14.48 Fair CLR 22 12 53% 76.43 0.0
16 11:55 S 13 11.27 Fair CLR 22 11 50% 76.43 0.0
16 11:35 S 15 12.87 Fair CLR 21 12 57% 76.4 0.0
16 11:15 SE 11 11.27 Fair CLR 0 0 0% 76.4 0.0
16 10:55 S 9 11.27 Fair CLR 21 11 53% 76.38 0.0
16 10:35 S 13 11.27 Fair CLR 0 0 0% 76.38 0.0
16 10:15 Vrbl 9 9.66 Fair with Haze CLR 22 12 53% 76.35 0.0
16 09:55 SE 7 12.87 Fair CLR 23 9 41% 76.35 0.0
16 09:35 S 11 12.87 Fair CLR 23 9 41% 76.35 0.0
16 09:15 Vrbl 7 11.27 Fair CLR 24 8 36% 25 76.33 0.0
16 08:55 S 13 12.87 Fair CLR 25 4 26% 25 76.33 0.0
16 08:35 W 13 11.27 Fair CLR 25 5 28% 25 76.33 0.0
16 08:15 Vrbl 13 G 31 14.48 Fair CLR 27 -1 16% 26 76.3 0.0
16 07:55 Vrbl 11 G 30 12.87 Fair CLR 26 -1 17% 25 76.28 0.0
16 07:35 E 30 G 41 11.27 Fair CLR 25 -1 18% 25 76.28 0.0
16 07:15 E 17 14.48 Fair CLR 24 0 21% 25 76.28 0.0
16 06:55 Vrbl 9 14.48 Fair CLR 21 1 27% 76.28 0.0
16 06:35 Calm 12.87 Fair CLR 17 8 56% 76.28 0.0
16 06:15 Calm 12.87 Fair CLR 16 9 63% 76.3 0.0
16 05:55 Calm 11.27 Fair CLR 14 8 67% 76.3 0.0
16 05:35 NW 7 11.27 Fair CLR 17 10 64% 76.28 0.0
16 05:15 NW 9 14.48 Fair CLR 14 7 63% 76.28 0.0
16 04:55 NW 7 14.48 Fair CLR 11 7 77% 76.28 0.0
16 04:35 Calm 14.48 Fair CLR 10 7 82% 76.3 0.0
16 04:15 Calm 14.48 Fair CLR 10 7 82% 76.3 0.0
16 03:55 N 6 12.87 Fair CLR 10 8 88% 76.33 0.0
16 03:35 Calm 11.27 Fair CLR 9 7 87% 76.35 0.0
16 03:15 NE 7 12.87 Fair CLR 9 7 87% 8 76.38 0.0
16 02:55 Calm 14.48 Fair CLR 10 7 82% 76.38 0.0
16 02:35 Calm 12.87 Fair CLR 10 8 88% 76.38 0.0
16 02:15 Calm 12.87 Fair CLR 9 7 87% 76.35 0.0
16 01:55 Calm 14.48 Fair CLR 10 7 82% 76.35 0.0
16 01:35 NE 7 14.48 Fair CLR 10 7 82% 9 76.35 0.0
16 01:15 Calm 14.48 Fair CLR 10 7 82% 76.38 0.0
16 00:35 Calm 12.87 Fair CLR 11 7 77% 76.38 0.0
16 00:15 Calm 14.48 Fair CLR 12 7 72% 76.38 0.0
15 23:55 Calm 12.87 Fair CLR 12 6 67% 76.4 0.0
15 23:35 Calm 14.48 Fair CLR 11 7 77% 76.4 0.0
15 23:15 Calm 12.87 Fair CLR 13 7 67% 76.4 0.0
15 22:55 Calm 14.48 Fair CLR 13 7 67% 76.38 0.0
15 22:35 Calm 14.48 Fair CLR 14 6 59% 76.38 0.0
15 22:15 Calm 14.48 Fair CLR 15 6 55% 76.38 0.0
15 21:55 Calm 14.48 Fair CLR 15 6 55% 76.38 0.0
15 21:35 N 7 14.48 Fair CLR 0 0 0% 76.38 0.0
15 21:15 Calm 14.48 Fair CLR 16 6 52% 76.4 0.0
15 20:55 N 13 12.87 Fair CLR 18 10 60% 76.38 0.0
15 20:35 NW 11 14.48 Fair CLR 20 4 35% 76.38 0.0
15 20:15 Calm 14.48 Fair CLR 20 3 33% 76.38 0.0
15 19:55 NW 15 14.48 Fair CLR 21 3 31% 76.35 0.0
15 19:35 N 15 14.48 Fair CLR 0 0 0% 76.35 0.0
15 19:15 N 22 14.48 NULL NULL 22 3 29% 76.35 0.0
15 18:55 NW 24 0.00 NULL NULL 22 4 31% 76.33 0.0
15 18:15 N 19 12.87 NULL NULL 23 4 29% 76.3 0.0
15 17:35 N 19 G 30 12.87 Fair CLR 23 4 29% 76.33 0.0
15 17:15 N 20 G 35 12.87 Fair CLR 24 4 27% 25 76.33 0.0
15 16:55 N 22 12.87 Fair CLR 24 5 29% 25 76.33 0.0
15 16:35 N 19 12.87 Fair CLR 25 7 32% 25 76.33 0.0
15 16:15 N 15 G 26 11.27 Fair CLR 27 7 28% 26 76.33 0.0
15 15:55 NW 20 11.27 Fair CLR 25 9 36% 26 76.33 0.0
15 15:35 NW 20 12.87 Fair CLR 27 10 34% 27 76.33 0.0
15 15:15 N 13 12.87 Fair CLR 27 10 34% 27 76.33 0.0
15 14:55 N 11 G 22 12.87 Fair CLR 28 8 28% 27 76.33 0.0
15 14:35 N 13 G 26 12.87 Fair CLR 30 3 18% 28 76.35 0.0
15 14:15 NE 15 G 26 14.48 Fair CLR 29 2 18% 27 76.38 0.0
15 13:55 NE 26 11.27 Fair CLR 29 2 18% 27 76.38 0.0
15 13:35 NE 24 11.27 Fair CLR 29 2 18% 27 76.4 0.0
15 13:15 NE 26 9.66 Fair with Haze CLR 29 2 18% 27 76.43 0.0
15 12:55 NE 15 G 30 11.27 Fair CLR 29 3 19% 27 76.45 0.0
15 12:35 E 15 G 30 14.48 Fair CLR 29 2 18% 27 76.45 0.0
15 12:15 E 9 G 24 12.87 Fair CLR 28 3 20% 27 76.48 0.0
15 11:55 NE 19 G 31 12.87 Fair CLR 27 2 20% 26 76.5 0.0
15 11:35 Calm 9.66 Haze NULL 27 3 21% 26 76.5 0.0
15 11:15 SE 13 0.00 NULL NULL 26 4 24% 26 76.5 0.0
15 10:55 Vrbl 7 G 19 11.27 NULL NULL 0 0 0% 76.53 0.0
15 10:15 Calm 8.05 Fair with Haze CLR 23 9 41% 76.53 0.0
15 09:55 Calm 9.66 Fair with Haze CLR 20 11 56% 76.56 0.0
15 09:35 Calm 8.05 Fair with Haze CLR 18 9 56% 76.53 0.0
15 09:15 Calm 6.44 Fair with Haze CLR 17 9 60% 76.56 0.0
15 08:55 Calm 6.44 Fair with Haze CLR 14 8 67% 76.53 0.0
15 08:35 Calm 9.66 Fog/Mist CLR 11 10 94% 76.53 0.0
15 08:15 Calm 9.66 Fog/Mist CLR 9 8 94% 76.53 0.0
15 07:55 Calm 9.66 Fog/Mist CLR 7 7 100% 76.5 0.0
15 07:35 Calm 9.66 Fog/Mist FEW002 6 6 100% 76.5 0.0
15 07:15 Calm 11.27 Partly Cloudy SCT003 6 5 93% 76.5 0.0
15 06:55 Calm 14.48 A Few Clouds FEW003 6 6 100% 76.5 0.0
15 06:35 Calm 12.87 Fair CLR 7 7 100% 76.48 0.0
15 06:15 Calm 14.48 Fair CLR 7 6 93% 76.5 0.0
15 05:55 Calm 14.48 Fair CLR 7 5 87% 76.48 0.0
15 05:35 Calm 12.87 Fair CLR 7 6 93% 76.48 0.0
15 05:15 Calm 14.48 Fair CLR 7 7 100% 76.48 0.0
15 04:55 Calm 12.87 A Few Clouds FEW003 FEW039 6 6 100% 76.48 0.0
15 04:35 Calm 14.48 Partly Cloudy SCT004 SCT039 7 6 93% 76.48 0.0
15 04:15 Calm 12.87 Mostly Cloudy BKN003 7 6 93% 76.48 0.0
15 03:55 Calm 14.48 Overcast OVC003 8 7 93% 76.48 0.0
15 03:35 Calm 14.48 Overcast OVC004 8 7 93% 76.5 0.0
15 03:15 Calm 14.48 Overcast OVC003 8 7 93% 76.5 0.0
15 02:55 Calm 14.48 Mostly Cloudy BKN003 7 6 93% 76.5 0.0
15 02:35 Calm 14.48 Fair CLR 7 6 93% 76.5 0.0
15 02:15 Calm 14.48 A Few Clouds FEW003 8 6 87% 76.5 0.0
15 01:55 Calm 14.48 Mostly Cloudy BKN003 0 0 0% 76.5 0.0
15 01:35 Calm 14.48 Mostly Cloudy BKN003 8 7 93% 76.5 0.0
15 01:15 Calm 14.48 Fair CLR 8 7 93% 76.48 0.0
15 00:55 Calm 14.48 Fair CLR 7 7 100% 76.5 0.0
15 00:35 Calm 12.87 Fair CLR 8 7 93% 76.5 0.0
15 00:15 Calm 14.48 Fair CLR 8 7 93% 76.53 0.0
14 23:55 NE 6 14.48 Fair CLR 8 7 93% 76.53 0.0
14 23:35 Calm 12.87 Fair CLR 8 8 100% 76.56 0.0
14 23:15 Calm 12.87 Fair CLR 8 8 100% 76.56 0.0
14 22:55 Calm 12.87 Fair CLR 9 8 94% 76.53 0.0
14 22:35 Calm 11.27 Fair CLR 9 9 100% 76.53 0.0
14 22:15 Calm 11.27 Fair CLR 9 9 100% 76.53 0.0
14 21:55 Calm 12.87 Fair CLR 9 7 87% 76.53 0.0
14 21:35 Calm 12.87 Fair CLR 10 8 88% 76.5 0.0
14 21:15 Calm 11.27 A Few Clouds FEW004 FEW045 0 0 0% 76.53 0.0
14 20:55 NE 6 11.27 A Few Clouds FEW004 FEW045 10 9 94% 76.5 0.0
14 20:35 NE 6 11.27 Partly Cloudy SCT004 11 10 94% 76.5 0.0
14 20:15 NE 6 9.66 Fog/Mist BKN004 12 11 94% 76.5 0.0
14 19:55 N 6 8.05 Fog/Mist CLR 12 12 100% 76.5 0.0
14 19:35 Calm 6.44 Fog/Mist CLR 13 13 100% 76.48 0.0
14 19:15 Calm 8.05 Fog/Mist CLR 14 14 100% 76.45 0.0
14 18:55 N 6 8.05 Fog/Mist CLR 14 14 100% 76.45 0.0
14 18:35 NW 9 4.83 Fog/Mist CLR 15 15 100% 76.43 0.0
14 18:15 NW 13 4.83 Fog/Mist CLR 16 15 94% 76.43 0.0
14 17:55 NW 11 6.44 Fog/Mist CLR 17 15 88% 76.43 0.0
14 17:35 NW 9 6.44 Fair with Haze CLR 17 14 83% 76.43 0.0
14 17:15 NW 11 8.05 Fair with Haze CLR 18 14 78% 76.43 0.0
14 16:55 NW 15 6.44 Fair with Haze CLR 18 12 68% 76.43 0.0
14 16:35 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.45 0.0
14 16:15 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.45 0.0
14 15:55 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.45 0.0
14 15:35 NW 17 6.44 Fair with Haze CLR 18 15 83% 76.48 0.0
14 15:15 NW 15 4.83 Fair with Haze CLR 18 15 83% 76.48 0.0
14 14:55 NW 15 6.44 Fair with Haze CLR 18 14 78% 76.48 0.0
14 14:35 NW 15 8.05 Fair with Haze CLR 18 14 78% 76.48 0.0
14 14:15 NW 15 6.44 Fair with Haze CLR 18 15 83% 76.5 0.0
14 13:55 NW 13 8.05 Haze NULL 18 14 78% 76.5 0.0
14 13:35 W 11 8.05 Haze NULL 18 13 73% 76.5 0.0
14 13:15 W 7 9.66 Fair with Haze CLR 18 13 73% 76.53 0.0
14 12:55 Vrbl 9 6.44 Fair with Haze CLR 18 13 73% 76.56 0.0
14 12:35 NW 9 8.05 Fair with Haze CLR 18 14 78% 76.56 0.0
14 12:15 Calm 9.66 Fair with Haze CLR 18 13 73% 76.58 0.0
14 11:55 W 7 9.66 Fair with Haze CLR 19 11 60% 76.56 0.0
14 11:35 Vrbl 7 8.05 Fair with Haze CLR 18 13 73% 76.56 0.0
14 11:15 W 7 8.05 Fair with Haze CLR 17 14 83% 76.56 0.0
14 10:55 W 9 8.05 Fair with Haze CLR 17 14 83% 76.58 0.0
14 10:35 Calm 8.05 Fair with Haze CLR 17 13 77% 76.58 0.0
14 10:15 Calm 4.83 Fair with Haze CLR 17 14 83% 76.58 0.0
14 09:55 S 6 6.44 Fog/Mist CLR 15 14 94% 76.58 0.0
14 09:35 S 6 4.83 Fog/Mist CLR 15 14 94% 76.58 0.0
14 09:15 Calm 4.83 Fog/Mist FEW004 15 14 94% 76.58 0.0
14 08:55 Calm 9.66 A Few Clouds with Haze FEW005 12 10 88% 76.58 0.0
14 08:35 Calm 9.66 Fog/Mist BKN006 10 9 94% 76.58 0.0
14 08:15 Calm 9.66 Fog/Mist BKN006 8 8 100% 76.56 0.0
14 07:55 Calm 9.66 Fog/Mist SCT005 6 6 100% 76.56 0.0
14 07:35 Calm 11.27 Partly Cloudy SCT005 6 6 100% 0 0.0
14 07:15 NE 6 12.87 Fair CLR 7 6 93% 76.53 0.0
14 06:55 Calm 12.87 Fair CLR 6 6 100% 76.53 0.0
14 06:35 NE 6 14.48 Fair CLR 6 6 100% 76.5 0.0
14 05:55 Calm 12.87 Fair CLR 6 6 100% 76.48 0.0
14 05:35 Calm 11.27 Fair CLR 6 6 100% 76.48 0.0
14 05:15 Calm 12.87 Fair CLR 6 6 100% 76.48 0.0
14 04:55 Calm 11.27 Fair CLR 7 7 100% 76.48 0.0
14 04:35 Calm 11.27 Fair CLR 7 7 100% 76.48 0.0
14 04:15 Calm 11.27 Fair CLR 6 6 100% 76.48 0.0
14 03:55 NE 7 11.27 Fair CLR 7 7 100% 6 76.48 0.0
14 03:35 Calm 11.27 Fair CLR 0 0 0% 76.48 0.0
14 03:15 Calm 11.27 Fair CLR 7 7 100% 76.5 0.0
14 02:55 Calm 11.27 Fair CLR 7 7 100% 76.5 0.0
14 02:35 Calm 11.27 Fair CLR 7 7 100% 76.5 0.0
14 02:15 Calm 12.87 Fair CLR 7 7 100% 76.5 0.0
14 01:55 Calm 11.27 Fair CLR 7 6 93% 76.5 0.0
14 01:35 NE 9 11.27 Fair CLR 8 8 100% 7 76.5 0.0
14 01:15 Calm 11.27 Fair CLR 8 8 100% 76.5 0.0
14 00:55 E 9 11.27 Fair CLR 9 8 94% 8 76.5 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)