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.
30 09:35 NW 7 12.87 Fair CLR 15 14 94% 76.02 0.0
30 09:15 Calm 14.48 Fair CLR 16 14 88% 76.02 0.0
30 08:55 Calm 14.48 Fair CLR 14 12 88% 76 0.0
30 08:35 NE 6 14.48 Fair CLR 13 11 88% 76.02 0.0
30 08:15 Calm 14.48 Fair CLR 12 11 94% 76 0.0
30 07:55 Calm 14.48 Fair CLR 11 10 94% 75.97 0.0
30 07:35 SE 9 14.48 Fair CLR 9 9 100% 8 76.02 0.0
30 07:15 Calm 14.48 Fair CLR 9 8 94% 76 0.0
30 06:35 Calm 16.09 Fair CLR 9 7 87% 75.95 0.0
30 06:15 Calm 16.09 Fair CLR 9 7 87% 75.95 0.0
30 05:55 Calm 16.09 Fair CLR 10 7 82% 75.92 0.0
30 05:35 Calm 16.09 Fair CLR 10 7 82% 75.92 0.0
30 05:15 Calm 16.09 Fair CLR 11 7 77% 75.92 0.0
30 04:55 Calm 16.09 Fair CLR 11 7 77% 75.92 0.0
30 04:35 Calm 16.09 Fair CLR 11 7 77% 75.92 0.0
30 04:15 SE 6 16.09 Fair CLR 11 8 82% 75.95 0.0
30 03:55 Calm 16.09 Fair CLR 0 0 0% 75.95 0.0
30 03:35 Calm 16.09 Fair CLR 10 7 82% 75.95 0.0
30 03:15 Calm 16.09 Fair CLR 9 7 87% 75.97 0.0
30 02:55 Calm 16.09 Fair CLR 10 6 76% 75.97 0.0
30 02:35 Calm 16.09 Fair CLR 9 8 94% 75.97 0.0
30 02:15 Calm 16.09 Fair CLR 10 8 88% 75.95 0.0
30 01:55 Calm 16.09 Fair CLR 11 6 72% 75.97 0.0
30 01:35 Calm 16.09 Fair CLR 10 6 76% 75.97 0.0
30 01:15 Calm 16.09 Fair CLR 10 7 82% 76 0.0
30 00:55 Calm 16.09 Fair CLR 10 8 88% 76 0.0
30 00:35 Calm 16.09 Fair CLR 10 8 88% 76 0.0
30 00:15 Calm 16.09 Fair CLR 11 7 77% 76 0.0
29 23:55 Calm 16.09 Fair CLR 10 8 88% 76 0.0
29 23:35 Calm 16.09 Fair CLR 11 7 77% 76 0.0
29 23:15 Calm 16.09 Fair CLR 12 7 72% 76 0.0
29 22:55 NW 6 16.09 Fair CLR 0 0 0% 76.02 0.0
29 22:35 Calm 16.09 Fair CLR 11 9 88% 76.02 0.0
29 22:15 Calm 16.09 Fair CLR 11 8 82% 76.02 0.0
29 21:55 Calm 16.09 Fair CLR 13 6 63% 76.05 0.0
29 21:35 Calm 14.48 Fair CLR 0 0 0% 76.02 0.0
29 21:15 Calm 16.09 Fair CLR 13 7 67% 76.02 0.0
29 20:55 Calm 16.09 Fair CLR 14 8 67% 76 0.0
29 20:35 Calm 16.09 Fair CLR 14 9 72% 76 0.0
29 20:15 E 7 16.09 Fair CLR 16 8 59% 75.97 0.0
29 19:55 Calm 16.09 Fair CLR 16 8 59% 76 0.0
29 19:35 NW 19 14.48 Fair CLR 16 10 68% 76 0.0
29 19:15 NW 15 14.48 Fair CLR 17 10 64% 76 0.0
29 18:55 NW 28 14.48 Fair CLR 18 11 64% 76 0.0
29 18:35 NW 19 16.09 Fair CLR 20 9 49% 76 0.0
29 18:15 NW 17 16.09 Fair CLR 20 8 46% 76 0.0
29 17:55 NW 20 14.48 Fair CLR 21 9 46% 76 0.0
29 17:35 NW 19 14.48 Fair CLR 22 7 38% 76 0.0
29 16:55 NW 20 16.09 Fair CLR 23 7 36% 76 0.0
29 16:35 NW 19 16.09 Fair CLR 23 6 33% 76.02 0.0
29 16:15 NW 20 16.09 Fair CLR 22 10 47% 76.02 0.0
29 15:55 NW 19 14.48 Fair CLR 21 12 57% 76.02 0.0
29 15:35 NW 20 14.48 Fair CLR 21 13 60% 76.05 0.0
29 15:15 NW 20 16.09 Fair CLR 22 11 50% 76.07 0.0
29 14:55 NW 22 14.48 Fair CLR 22 11 50% 76.1 0.0
29 14:35 NW 24 16.09 Fair CLR 23 10 44% 76.1 0.0
29 14:15 NW 28 14.48 Fair CLR 22 12 53% 76.1 0.0
29 13:55 NW 19 14.48 Fair CLR 21 15 69% 76.12 0.0
29 13:35 NW 22 11.27 Fair CLR 20 16 78% 76.15 0.0
29 13:15 NW 19 11.27 Fair CLR 20 16 78% 76.15 0.0
29 12:55 Vrbl 7 11.27 Fair CLR 21 15 69% 76.15 0.0
29 12:35 NW 9 G 19 8.05 Fair with Haze CLR 20 15 73% 76.15 0.0
29 12:15 NW 9 9.66 Fair with Haze CLR 21 15 69% 76.17 0.0
29 11:55 NW 9 9.66 Fair with Haze CLR 20 15 73% 76.17 0.0
29 11:35 Calm 11.27 Fair CLR 19 14 73% 76.17 0.0
29 11:15 W 11 8.05 Fair with Haze CLR 17 14 83% 76.2 0.0
29 10:55 W 11 6.44 Fair with Haze CLR 18 14 78% 76.17 0.0
29 10:35 NW 9 6.44 Fair with Haze CLR 18 15 83% 76.17 0.0
29 10:15 NW 6 6.44 Fair with Haze CLR 19 15 78% 76.15 0.0
29 09:55 Calm 12.87 Fair CLR 18 14 78% 76.12 0.0
29 09:35 Calm 11.27 Fair CLR 0 0 0% 76.15 0.0
29 09:15 Calm 11.27 Fair CLR 15 13 88% 76.15 0.0
29 08:55 Calm 8.05 Fog/Mist CLR 14 13 94% 76.15 0.0
29 08:35 Calm 12.87 Fair CLR 12 12 100% 76.15 0.0
29 08:15 Calm 11.27 Fair CLR 10 10 100% 76.15 0.0
29 07:55 Calm 14.48 Fair CLR 9 9 100% 76.15 0.0
29 07:35 Calm 12.87 Fair CLR 7 7 100% 76.12 0.0
29 07:15 Calm 12.87 Fair CLR 7 7 100% 76.12 0.0
29 06:55 Calm 12.87 Fair CLR 7 7 100% 76.1 0.0
29 06:35 Calm 14.48 Fair CLR 6 6 100% 76.07 0.0
29 06:15 Calm 14.48 Fair CLR 7 7 100% 76.07 0.0
29 05:55 Calm 14.48 Fair CLR 8 8 100% 76.07 0.0
29 05:35 Calm 14.48 Fair CLR 7 7 100% 76.07 0.0
29 04:55 Calm 12.87 Fair CLR 7 7 100% 76.07 0.0
29 04:35 Calm 14.48 Fair CLR 7 7 100% 76.07 0.0
29 04:15 Calm 14.48 Fair CLR 7 7 100% 76.07 0.0
29 03:55 Calm 14.48 Fair CLR 0 0 0% 76.1 0.0
29 03:35 Calm 16.09 Fair CLR 0 0 0% 76.1 0.0
29 03:15 Calm 14.48 Fair CLR 8 8 100% 76.1 0.0
29 02:55 Calm 14.48 Fair CLR 8 8 100% 76.1 0.0
29 02:35 NW 6 12.87 Fair CLR 8 8 100% 76.12 0.0
29 02:15 Calm 14.48 Fair CLR 8 8 100% 76.12 0.0
29 01:55 Calm 14.48 Fair CLR 8 8 100% 76.12 0.0
29 01:35 Calm 12.87 Fair CLR 8 8 100% 76.12 0.0
29 01:15 Calm 14.48 Fair CLR 8 8 100% 76.12 0.0
29 00:55 Calm 14.48 Fair CLR 9 9 100% 76.15 0.0
29 00:15 Calm 11.27 Partly Cloudy SCT003 9 9 100% 76.17 0.0
28 23:55 Calm 14.48 Mostly Cloudy BKN003 8 8 100% 76.17 0.0
28 23:15 Calm 14.48 A Few Clouds FEW002 9 9 100% 76.15 0.0
28 22:55 Calm 12.87 Mostly Cloudy BKN002 9 9 100% 76.17 0.0
28 22:35 NE 6 12.87 Fair CLR 9 9 100% 76.2 0.0
28 22:15 Calm 12.87 Fair CLR 0 0 0% 76.2 0.0
28 21:55 Calm 8.05 Fog/Mist SCT003 10 10 100% 76.23 0.0
28 21:35 Calm 8.05 Fog/Mist OVC003 10 10 100% 76.2 0.0
28 20:55 Calm 6.44 Fog/Mist SCT003 12 12 100% 76.2 0.0
28 20:35 NE 7 8.05 Fog/Mist CLR 12 12 100% 76.17 0.0
28 20:15 N 11 8.05 Fog/Mist CLR 12 12 100% 76.17 0.0
28 19:55 NW 15 4.83 Fog/Mist CLR 12 12 100% 76.17 0.0
28 19:35 NW 7 4.83 Fog/Mist CLR 12 12 100% 76.15 0.0
28 19:15 NW 7 6.44 Fog/Mist CLR 13 13 100% 76.15 0.0
28 18:55 NW 15 6.44 Fog/Mist CLR 13 13 100% 76.15 0.0
28 18:35 NW 15 6.44 Fog/Mist CLR 14 13 94% 76.15 0.0
28 18:15 NW 7 8.05 Fog/Mist CLR 15 13 88% 76.15 0.0
28 17:55 NW 13 8.05 Fog/Mist CLR 15 13 88% 76.17 0.0
28 17:35 NW 11 8.05 Fog/Mist CLR 15 13 88% 76.17 0.0
28 17:15 NW 15 8.05 Fog/Mist CLR 14 13 94% 76.2 0.0
28 16:55 NW 19 8.05 Fog/Mist CLR 15 13 88% 76.2 0.0
28 16:35 NW 15 8.05 Fog/Mist CLR 15 13 88% 76.2 0.0
28 16:15 NW 20 8.05 Fog/Mist CLR 14 13 94% 76.23 0.0
28 15:55 NW 19 8.05 Fog/Mist CLR 14 13 94% 76.25 0.0
28 15:35 NW 15 8.05 Fog/Mist CLR 14 13 94% 76.25 0.0
28 15:15 NW 15 G 24 8.05 Fog/Mist CLR 14 12 88% 76.28 0.0
28 14:55 NW 15 8.05 Fog/Mist CLR 14 12 88% 76.28 0.0
28 14:35 Vrbl 11 6.44 Fog/Mist CLR 14 12 88% 76.25 0.0
28 14:15 NW 13 8.05 Fog/Mist CLR 13 12 94% 76.28 0.0
28 13:55 W 15 6.44 Fog/Mist CLR 13 12 94% 76.3 0.0
28 13:35 NW 11 8.05 Fog/Mist CLR 13 12 94% 76.33 0.0
28 13:15 W 7 9.66 Fog/Mist CLR 13 12 94% 76.33 0.0
28 12:55 SW 7 8.05 Fair CLR 0 0 0% 76.35 0.0
28 12:35 SW 11 11.27 A Few Clouds FEW005 13 12 94% 76.35 0.0
28 12:15 S 13 11.27 Mostly Cloudy BKN004 12 12 100% 76.38 0.0
28 11:55 SE 13 9.66 Fog/Mist OVC004 11 11 100% 76.38 0.0
28 11:35 S 9 4.83 Overcast OVC003 0 0 0% 76.4 0.0
28 11:15 S 11 4.02 Fog/Mist OVC003 11 11 100% 76.4 0.0
28 10:55 S 11 1.61 Fog/Mist OVC003 10 10 100% 9 76.43 0.0
28 10:35 S 9 0.80 Fog OVC003 10 10 100% 9 76.4 0.0
28 10:15 SE 9 2.82 Fog/Mist OVC003 10 10 100% 9 76.38 0.0
28 09:55 Calm 0.80 Fog/Mist OVC003 10 10 100% 76.38 0.0
28 09:15 S 7 0.24 Fog OVC002 9 9 100% 8 76.33 0.0
28 08:55 SE 7 0.24 Fog OVC002 9 9 100% 8 76.3 0.0
28 08:35 SE 9 0.24 Fog OVC002 9 9 100% 8 76.3 0.0
28 08:15 E 7 0.24 Fog OVC002 8 8 100% 7 76.3 0.0
28 07:55 E 7 0.24 Fog OVC002 8 8 100% 7 76.28 0.0
28 07:35 NE 6 0.24 Overcast OVC002 0 0 0% 76.28 0.0
28 07:15 SE 7 0.24 Overcast OVC002 0 0 0% 76.25 0.0
28 06:55 SE 9 0.24 Fog OVC002 9 9 100% 8 76.25 0.0
28 06:35 SE 7 0.80 Fog/Mist OVC002 9 9 100% 8 76.25 0.0
28 06:15 E 7 3.22 Fog/Mist OVC002 8 8 100% 7 76.23 0.0
28 05:55 Calm 4.83 Fog/Mist OVC002 9 9 100% 76.2 0.0
28 05:35 Calm 8.05 Fog/Mist OVC003 9 9 100% 76.2 0.0
28 05:15 E 9 9.66 Fog/Mist OVC003 9 9 100% 8 76.2 0.0
28 04:55 E 7 12.87 Overcast OVC003 9 9 100% 8 76.2 0.0
28 04:35 Calm 11.27 Overcast OVC005 9 8 94% 76.2 0.0
28 04:15 E 11 12.87 Overcast OVC005 9 8 94% 8 76.2 0.0
28 03:55 Calm 14.48 Overcast OVC005 9 8 94% 76.2 0.0
28 03:35 Calm 12.87 Overcast OVC005 8 8 100% 76.2 0.0
28 03:15 Calm 12.87 Overcast OVC006 7 7 100% 76.17 0.0
28 02:55 Calm 12.87 Overcast OVC007 7 7 100% 76.17 0.0
28 02:35 Calm 12.87 Mostly Cloudy BKN006 6 6 100% 76.17 0.0
28 02:15 Calm 14.48 Mostly Cloudy BKN006 6 6 100% 76.17 0.0
28 01:55 Calm 12.87 Mostly Cloudy BKN006 6 6 100% 76.17 0.0
28 01:35 Calm 12.87 Fair CLR 6 6 100% 76.17 0.0
28 01:15 Calm 14.48 A Few Clouds FEW004 7 6 93% 76.17 0.0
28 00:55 Calm 12.87 Mostly Cloudy BKN004 7 7 100% 76.15 0.0
28 00:35 Calm 11.27 Mostly Cloudy BKN003 8 8 100% 76.15 0.0
28 00:15 Calm 9.66 Fog/Mist FEW003 7 7 100% 76.17 0.0
27 23:55 Calm 9.66 Fog/Mist FEW003 8 8 100% 76.17 0.0
27 23:35 N 6 11.27 A Few Clouds FEW003 9 9 100% 76.15 0.0
27 23:15 Calm 8.05 Fog/Mist CLR 9 9 100% 76.15 0.0
27 22:55 Calm 6.44 Fog/Mist CLR 10 10 100% 76.15 0.0
27 22:35 Calm 8.05 Fog/Mist CLR 11 11 100% 76.15 0.0
27 22:15 Calm 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
27 21:55 NW 6 6.44 Fog/Mist CLR 11 11 100% 76.15 0.0
27 21:35 NW 7 8.05 Fog/Mist CLR 11 11 100% 76.12 0.0
27 21:15 Calm 8.05 Fog/Mist CLR 11 11 100% 76.12 0.0
27 20:55 Calm 8.05 Fog/Mist FEW003 12 12 100% 76.1 0.0
27 20:35 Calm 6.44 Fog/Mist FEW003 13 13 100% 76.1 0.0
27 20:15 S 7 8.05 Fog/Mist CLR 12 12 100% 76.1 0.0
27 19:55 S 9 6.44 Fog/Mist CLR 12 12 100% 76.07 0.0
27 19:35 S 9 4.83 Fog/Mist CLR 13 12 94% 76.07 0.0
27 19:15 Calm 16.09 Fair CLR 17 6 49% 76.07 0.0
27 18:55 N 17 16.09 Fair CLR 18 3 37% 76.05 0.0
27 18:35 N 13 G 24 16.09 Fair CLR 18 5 43% 76.05 0.0
27 18:15 N 24 G 33 14.48 Fair CLR 18 6 46% 76.05 0.0
27 17:55 NW 22 11.27 Fair CLR 0 0 0% 76.05 0.0
27 17:35 NW 22 14.48 Fair CLR 17 10 64% 76.05 0.0
27 17:15 NW 24 12.87 Fair CLR 18 10 60% 76.05 0.0
27 16:55 NW 28 14.48 Fair CLR 18 10 60% 76.05 0.0
27 16:35 N 24 G 33 12.87 Fair CLR 18 11 64% 76.05 0.0
27 16:15 NW 28 14.48 Fair CLR 18 11 64% 76.05 0.0
27 15:55 NW 24 14.48 Fair CLR 18 11 64% 76.05 0.0
27 15:35 NW 26 12.87 Fair CLR 20 10 53% 76.05 0.0
27 15:15 NW 22 14.48 Fair CLR 20 11 56% 76.02 0.0
27 14:55 NW 19 11.27 Fair CLR 20 13 64% 76.05 0.0
27 14:35 NW 19 9.66 Fair with Haze CLR 20 14 69% 76.07 0.0
27 14:15 NW 9 11.27 Fair CLR 20 13 64% 76.1 0.0
27 13:55 NW 9 12.87 Fair CLR 21 13 60% 76.1 0.0
27 13:35 NW 15 12.87 Fair CLR 21 13 60% 76.12 0.0
27 13:15 Calm 16.09 Fair CLR 23 4 29% 76.12 0.0
27 12:55 S 9 14.48 Fair CLR 23 4 29% 76.12 0.0
27 12:35 SW 7 16.09 Fair CLR 23 4 29% 76.12 0.0
27 12:15 Vrbl 6 16.09 Fair CLR 23 2 25% 76.12 0.0
27 11:55 NE 19 16.09 Fair CLR 24 -2 18% 24 76.12 0.0
27 11:35 NE 15 G 31 16.09 Fair CLR 25 -2 17% 25 76.12 0.0
27 11:15 Vrbl 9 G 19 16.09 Fair CLR 22 6 36% 76.12 0.0
27 10:55 NW 13 12.87 Fair CLR 19 12 64% 76.15 0.0
27 10:35 NW 13 12.87 Fair CLR 19 10 56% 76.12 0.0
27 10:15 Vrbl 7 16.09 Fair CLR 21 8 43% 76.12 0.0
27 09:55 Calm 8.05 Fair with Haze CLR 17 13 77% 76.12 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)