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.
27 02:15 Calm 11.27 Fair CLR 8 8 100% 76.12 0.0
27 01:55 Calm 11.27 Fair CLR 8 8 100% 76.12 0.0
27 01:35 Calm 12.87 Fair CLR 8 8 100% 76.15 0.0
27 01:15 Calm 9.66 Fog/Mist CLR 9 8 94% 76.15 0.0
27 00:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.15 0.0
27 00:35 NW 9 6.44 Fog/Mist CLR 11 10 94% 76.15 0.0
27 00:15 NW 9 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
26 23:55 NW 13 8.05 Fog/Mist CLR 11 11 100% 76.15 0.0
26 23:35 NW 13 8.05 Fair CLR 0 0 0% 76.15 0.0
26 23:15 NW 7 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
26 22:55 NW 11 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
26 22:35 NW 13 8.05 Fog/Mist CLR 12 11 94% 76.17 0.0
26 22:15 N 11 8.05 Fog/Mist CLR 11 11 100% 76.17 0.0
26 21:55 N 11 8.05 Fog/Mist CLR 12 11 94% 76.2 0.0
26 21:35 NW 9 9.66 Fog/Mist CLR 11 11 100% 76.2 0.0
26 21:15 NW 11 9.66 Fog/Mist CLR 11 11 100% 76.2 0.0
26 20:55 NW 17 9.66 Fog/Mist CLR 12 11 94% 76.2 0.0
26 20:35 NW 22 11.27 Fair CLR 0 0 0% 76.2 0.0
26 20:15 NW 20 9.66 Fair with Haze CLR 12 10 88% 76.2 0.0
26 19:55 NW 19 11.27 Fair CLR 13 10 82% 76.2 0.0
26 19:35 NW 20 11.27 Fair CLR 13 9 77% 76.2 0.0
26 19:15 NW 19 14.48 Fair CLR 15 7 59% 76.2 0.0
26 18:55 NW 22 14.48 Fair CLR 15 7 59% 76.2 0.0
26 18:35 NW 19 12.87 Fair CLR 0 0 0% 76.2 0.0
26 18:15 NW 22 14.48 Fair CLR 15 8 63% 76.2 0.0
26 17:55 NW 24 14.48 Fair CLR 16 8 59% 76.23 0.0
26 17:35 NW 24 16.09 Fair CLR 17 5 45% 76.23 0.0
26 17:15 NW 26 16.09 Fair CLR 17 6 49% 76.23 0.0
26 16:55 NW 26 14.48 Fair CLR 17 6 49% 76.23 0.0
26 16:35 N 33 14.48 Fair and Breezy CLR 16 8 59% 76.25 0.0
26 16:15 NW 31 16.09 Fair CLR 17 9 60% 76.25 0.0
26 15:55 NW 30 14.48 Fair CLR 16 9 63% 76.28 0.0
26 15:35 NW 30 14.48 Fair CLR 16 10 68% 76.28 0.0
26 15:15 NW 31 12.87 Fair CLR 16 10 68% 76.3 0.0
26 14:55 N 31 G 41 14.48 Fair CLR 15 11 77% 76.3 0.0
26 14:35 N 33 14.48 Fair and Breezy CLR 16 10 68% 76.33 0.0
26 14:15 NW 28 G 37 14.48 Fair CLR 16 11 72% 76.35 0.0
26 13:55 NW 30 14.48 Fair CLR 16 12 77% 76.35 0.0
26 13:35 NW 30 14.48 Fair CLR 16 11 72% 76.38 0.0
26 13:15 N 28 12.87 Fair CLR 16 12 77% 76.38 0.0
26 12:55 NW 19 11.27 Fair CLR 18 12 68% 76.4 0.0
26 12:35 N 15 12.87 Fair CLR 18 12 68% 76.4 0.0
26 12:15 Vrbl 9 G 24 14.48 Fair CLR 18 12 68% 76.43 0.0
26 11:55 N 17 11.27 Fair CLR 0 0 0% 76.43 0.0
26 11:35 NW 22 9.66 Fair with Haze CLR 16 12 77% 76.43 0.0
26 11:15 NW 28 6.44 Fair with Haze CLR 15 13 88% 76.43 0.0
26 10:55 NW 19 8.05 Fair with Haze CLR 15 12 82% 76.43 0.0
26 10:35 NW 20 6.44 Fair with Haze CLR 14 12 88% 76.43 0.0
26 10:15 NW 20 6.44 Fog/Mist CLR 14 12 88% 76.43 0.0
26 09:55 NW 24 6.44 Fog/Mist CLR 13 12 94% 76.4 0.0
26 09:35 NW 7 4.83 Fog/Mist CLR 12 11 94% 76.43 0.0
26 09:15 NW 15 4.02 Fog/Mist CLR 11 11 100% 76.43 0.0
26 08:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.43 0.0
26 08:35 Calm 9.66 Fog/Mist CLR 9 9 100% 76.43 0.0
26 08:15 Calm 8.05 Fog/Mist CLR 7 7 100% 76.45 0.0
26 07:55 Calm 8.05 Fair CLR 0 0 0% 76.45 0.0
26 07:35 Calm 9.66 Fog/Mist CLR 6 6 100% 76.45 0.0
26 07:15 NE 7 9.66 Fog/Mist FEW013 5 5 100% 4 76.43 0.0
26 06:55 E 6 11.27 Mostly Cloudy BKN013 5 5 100% 76.43 0.0
26 06:35 Calm 9.66 Fog/Mist OVC013 6 6 100% 76.4 0.0
26 06:15 E 6 9.66 Fog/Mist OVC014 6 6 100% 76.4 0.0
26 05:55 Calm 9.66 Fog/Mist BKN014 7 7 100% 76.43 0.0
26 05:35 E 7 9.66 A Few Clouds FEW013 0 0 0% 76.43 0.0
26 05:15 N 9 8.05 Fog/Mist CLR 10 9 94% 9 76.4 0.0
26 04:55 N 9 8.05 Fog/Mist FEW013 9 9 100% 8 76.4 0.0
26 04:35 N 13 9.66 Fog/Mist FEW013 10 9 94% 8 76.4 0.0
26 04:15 N 11 9.66 Fog/Mist CLR 10 10 100% 9 76.4 0.0
26 03:55 N 13 9.66 Fair CLR 0 0 0% 76.43 0.0
26 03:35 N 7 8.05 Fog/Mist FEW013 10 10 100% 9 76.45 0.0
26 03:15 N 9 8.05 Fog/Mist CLR 8 8 100% 7 76.45 0.0
26 02:55 Calm 8.05 Fog/Mist SCT011 BKN020 7 7 100% 76.48 0.0
26 02:15 Calm 8.05 Fog/Mist BKN012 BKN019 9 9 100% 76.48 0.0
26 01:55 NW 9 8.05 Fog/Mist SCT013 10 10 100% 9 76.48 0.0
26 01:35 N 11 8.05 Fog/Mist SCT013 10 10 100% 9 76.48 0.0
26 01:15 N 7 8.05 Fog/Mist FEW013 10 10 100% 9 76.48 0.0
26 00:55 N 11 G 22 8.05 Fog/Mist FEW013 11 11 100% 76.48 0.0
26 00:35 N 15 8.05 Fog/Mist FEW013 11 11 100% 76.45 0.0
26 00:15 N 13 8.05 Fog/Mist FEW012 11 11 100% 76.45 0.0
25 23:55 N 24 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 23:35 N 24 G 39 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 23:15 N 30 G 39 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 22:55 N 26 G 37 8.05 Fog/Mist CLR 11 11 100% 76.43 0.0
25 22:35 NW 31 G 41 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 22:15 N 22 G 31 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 21:55 N 22 G 31 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 21:35 N 22 8.05 Fog/Mist CLR 11 10 94% 76.43 0.0
25 21:15 NW 22 9.66 Fog/Mist CLR 12 10 88% 76.43 0.0
25 20:55 NW 22 9.66 Fog/Mist CLR 11 10 94% 76.4 0.0
25 20:35 NW 26 11.27 Fair CLR 12 10 88% 76.4 0.0
25 20:15 NW 26 9.66 Fog/Mist CLR 12 10 88% 76.4 0.0
25 19:55 NW 26 9.66 Fog/Mist CLR 12 11 94% 76.38 0.0
25 19:35 NW 26 8.05 Fog/Mist CLR 12 11 94% 76.38 0.0
25 19:15 NW 28 8.05 Fog/Mist CLR 12 11 94% 76.38 0.0
25 18:55 NW 30 G 39 9.66 Fog/Mist CLR 13 12 94% 76.38 0.0
25 18:35 NW 28 G 37 9.66 Fog/Mist CLR 13 12 94% 76.38 0.0
25 18:15 N 24 G 37 9.66 Fog/Mist CLR 13 12 94% 76.38 0.0
25 17:55 N 28 9.66 Fog/Mist CLR 14 12 88% 76.38 0.0
25 17:35 N 33 G 44 11.27 Fair and Breezy CLR 14 12 88% 76.38 0.0
25 17:15 NW 30 G 43 11.27 Fair CLR 14 13 94% 76.4 0.0
25 16:55 NW 31 12.87 Fair CLR 14 13 94% 76.38 0.0
25 16:35 N 30 G 41 12.87 A Few Clouds FEW007 14 13 94% 76.4 0.0
25 16:15 N 30 G 43 11.27 Mostly Cloudy BKN006 14 13 94% 76.4 0.0
25 15:55 NW 31 G 46 11.27 Mostly Cloudy BKN005 14 14 100% 76.4 0.0
25 15:35 NW 35 G 44 11.27 Mostly Cloudy and Breezy BKN004 0 0 0% 76.38 0.0
25 15:15 NW 28 G 41 14.48 Overcast OVC004 15 14 94% 76.4 0.0
25 14:55 N 31 14.48 Mostly Cloudy BKN005 15 14 94% 76.4 0.0
25 14:35 N 22 G 33 14.48 A Few Clouds FEW005 15 15 100% 76.43 0.0
25 14:15 NW 26 14.48 Fair CLR 16 15 94% 76.43 0.0
25 13:55 NW 30 14.48 Fair CLR 16 15 94% 76.43 0.0
25 13:35 N 28 G 39 14.48 Fair CLR 16 15 94% 76.43 0.0
25 13:15 N 24 16.09 Fair CLR 17 15 88% 76.45 0.0
25 12:55 NW 26 G 37 14.48 Fair CLR 0 0 0% 76.45 0.0
25 12:35 N 26 G 35 16.09 Fair CLR 16 15 94% 76.48 0.0
25 12:15 N 19 14.48 Fair CLR 15 14 94% 76.48 0.0
25 11:55 NW 19 16.09 Fair CLR 15 14 94% 76.5 0.0
25 11:35 NW 15 16.09 Fair CLR 15 13 88% 76.48 0.0
25 11:15 NW 15 16.09 Fair CLR 15 13 88% 76.48 0.0
25 10:55 NW 13 16.09 Fair CLR 15 13 88% 76.5 0.0
25 10:35 NW 15 16.09 Fair CLR 14 13 94% 76.48 0.0
25 10:15 NW 11 14.48 Fair CLR 14 13 94% 76.48 0.0
25 09:55 NW 13 16.09 Fair CLR 14 13 94% 76.48 0.0
25 09:35 NW 15 14.48 Fair CLR 13 13 100% 76.48 0.0
25 09:15 NW 19 14.48 A Few Clouds FEW008 13 13 100% 76.48 0.0
25 08:55 NW 13 14.48 Fair CLR 13 13 100% 76.48 0.0
25 08:35 NW 17 14.48 A Few Clouds FEW007 12 12 100% 76.48 0.0
25 08:15 N 15 16.09 A Few Clouds FEW007 12 12 100% 76.45 0.0
25 07:55 N 17 16.09 Mostly Cloudy BKN008 12 12 100% 76.45 0.0
25 07:35 N 11 14.48 Mostly Cloudy BKN008 11 11 100% 76.45 0.0
25 07:15 N 17 14.48 Mostly Cloudy BKN007 0 0 0% 76.43 0.0
25 06:55 N 17 14.48 Overcast OVC005 11 11 100% 76.43 0.0
25 06:35 NW 15 G 24 14.48 Overcast OVC004 11 11 100% 76.4 0.0
25 06:15 Vrbl 6 6.44 Fog/Mist BKN002 10 10 100% 76.4 0.0
25 05:55 Vrbl 9 16.09 A Few Clouds FEW003 9 8 94% 8 76.38 0.0
25 05:35 NW 9 14.48 Fair CLR 11 11 100% 76.38 0.0
25 05:15 NW 15 14.48 Fair CLR 11 10 94% 76.35 0.0
25 04:55 NW 11 16.09 Fair CLR 11 10 94% 76.35 0.0
25 04:35 NW 9 16.09 Fair CLR 7 3 76% 5 76.35 0.0
25 04:15 Calm 16.09 Fair CLR 5 2 81% 76.35 0.0
25 03:55 Calm 16.09 Fair CLR 6 2 76% 76.38 0.0
25 03:35 Calm 16.09 Fair CLR 6 0 66% 76.35 0.0
25 03:15 Calm 16.09 Fair CLR 7 -1 57% 76.35 0.0
25 02:55 Calm 16.09 Fair CLR 6 -1 61% 76.38 0.0
25 02:35 Calm 16.09 Fair CLR 8 1 62% 76.38 0.0
25 02:15 NW 6 16.09 Fair CLR 7 0 61% 76.4 0.0
25 01:55 Calm 16.09 Fair CLR 7 0 61% 76.4 0.0
25 01:35 Calm 16.09 Fair CLR 7 -1 57% 76.4 0.0
25 01:15 NE 6 16.09 Fair CLR 8 -3 46% 76.4 0.0
25 00:55 E 6 16.09 Fair CLR 8 -2 50% 76.4 0.0
25 00:35 Calm 16.09 A Few Clouds FEW060 10 -2 43% 76.4 0.0
25 00:15 SE 7 16.09 Partly Cloudy SCT060 11 -4 35% 76.4 0.0
24 23:55 N 9 16.09 Partly Cloudy SCT060 14 -4 29% 76.38 0.0
24 23:35 N 15 16.09 A Few Clouds FEW060 15 -5 25% 76.4 0.0
24 23:15 N 13 G 24 16.09 A Few Clouds FEW060 15 -5 25% 76.4 0.0
24 22:55 N 15 G 24 16.09 A Few Clouds FEW060 15 -5 25% 76.38 0.0
24 22:35 N 17 16.09 Fair CLR 15 -5 25% 76.38 0.0
24 22:15 N 19 16.09 Fair CLR 15 -3 29% 76.38 0.0
24 21:55 N 24 G 37 16.09 Fair CLR 14 1 41% 76.35 0.0
24 21:35 N 26 G 37 16.09 Fair CLR 15 -6 23% 76.35 0.0
24 21:15 N 28 16.09 Fair CLR 16 -10 16% 76.33 0.0
24 20:55 N 26 G 35 16.09 Fair CLR 16 -12 13% 76.33 0.0
24 20:35 N 19 16.09 Fair CLR 15 -9 18% 76.3 0.0
24 20:15 N 20 16.09 Fair CLR 16 -7 20% 76.3 0.0
24 19:55 N 11 G 22 16.09 Fair CLR 16 -11 15% 76.3 0.0
24 19:35 N 11 16.09 Fair CLR 17 -12 13% 76.3 0.0
24 19:15 N 13 14.48 Fair CLR 17 -6 20% 76.3 0.0
24 18:55 NW 15 16.09 Fair CLR 17 -4 24% 76.3 0.0
24 18:35 NW 20 16.09 Fair CLR 18 -2 26% 76.3 0.0
24 18:15 NW 15 16.09 Fair CLR 0 0 0% 76.3 0.0
24 17:55 NW 20 16.09 Fair CLR 19 0 28% 76.28 0.0
24 17:35 N 24 16.09 Fair CLR 19 1 30% 76.3 0.0
24 17:15 N 24 16.09 Fair CLR 19 3 35% 76.33 0.0
24 16:55 NW 22 16.09 Fair CLR 19 6 43% 76.33 0.0
24 16:35 N 24 G 33 16.09 Fair CLR 19 6 43% 76.33 0.0
24 16:15 NW 20 G 33 16.09 Fair CLR 21 0 25% 76.33 0.0
24 15:55 N 24 16.09 Fair CLR 21 -1 23% 76.33 0.0
24 15:35 NW 20 16.09 Fair CLR 21 2 29% 76.33 0.0
24 15:15 NW 24 16.09 Fair CLR 20 6 40% 76.35 0.0
24 14:55 NW 20 G 31 16.09 Fair CLR 20 6 40% 76.35 0.0
24 14:35 N 28 16.09 Fair CLR 0 0 0% 76.38 0.0
24 14:15 NW 22 16.09 Fair CLR 21 6 38% 76.4 0.0
24 13:55 NW 19 G 30 16.09 Fair CLR 21 6 38% 76.4 0.0
24 13:35 NW 22 16.09 Fair CLR 20 8 46% 76.4 0.0
24 13:15 NW 20 G 31 16.09 Fair CLR 20 9 49% 76.4 0.0
24 12:55 NW 24 12.87 Fair CLR 19 11 60% 76.4 0.0
24 12:35 NW 22 14.48 Fair CLR 0 0 0% 76.4 0.0
24 12:15 NW 22 12.87 Fair CLR 19 11 60% 76.43 0.0
24 11:55 NW 20 14.48 Fair CLR 19 12 64% 76.43 0.0
24 11:35 NW 19 12.87 Fair CLR 19 12 64% 76.43 0.0
24 11:15 NW 19 14.48 Fair CLR 19 11 60% 76.43 0.0
24 10:55 NW 17 14.48 Fair CLR 18 12 68% 76.43 0.0
24 10:35 NW 17 12.87 Fair CLR 18 13 73% 76.43 0.0
24 10:15 NW 15 12.87 Fair CLR 0 0 0% 76.4 0.0
24 09:55 NW 13 11.27 Fair CLR 18 12 68% 76.4 0.0
24 09:35 NW 9 11.27 Fair CLR 17 13 77% 76.4 0.0
24 09:15 Calm 12.87 Fair CLR 15 12 82% 76.4 0.0
24 08:55 Calm 12.87 Fair CLR 14 12 88% 76.4 0.0
24 08:35 Calm 12.87 Fair CLR 12 10 88% 76.38 0.0
24 08:15 Calm 12.87 Fair CLR 9 9 100% 76.38 0.0
24 07:55 Calm 16.09 Fair CLR 7 7 100% 76.35 0.0
24 07:35 Calm 16.09 Fair CLR 6 6 100% 76.35 0.0
24 07:15 Calm 14.48 Fair CLR 6 6 100% 76.35 0.0
24 06:55 Calm 16.09 Fair CLR 7 7 100% 76.33 0.0
24 06:35 Calm 14.48 Fair CLR 6 6 100% 76.33 0.0
24 06:15 Calm 14.48 Fair CLR 6 6 100% 76.33 0.0
24 05:55 Calm 14.48 Fair CLR 6 6 100% 76.33 0.0
24 05:35 Calm 16.09 Fair CLR 6 6 100% 76.33 0.0
24 05:15 Calm 16.09 Fair CLR 0 0 0% 76.33 0.0
24 04:55 Calm 16.09 Fair CLR 0 0 0% 76.33 0.0
24 04:35 Calm 16.09 Fair CLR 7 6 93% 76.33 0.0
24 04:15 Calm 14.48 Fair CLR 0 0 0% 76.33 0.0
24 03:55 Calm 14.48 Fair CLR 7 6 93% 76.33 0.0
24 03:35 Calm 12.87 Fair CLR 7 6 93% 76.33 0.0
24 03:15 Calm 14.48 Fair CLR 7 6 93% 76.35 0.0
24 02:55 Calm 16.09 Fair CLR 7 6 93% 76.38 0.0
24 02:35 Calm 14.48 Fair CLR 7 6 93% 76.38 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)