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.
19 12:15 NW 13 11.27 Mostly Cloudy BKN028 17 10 64% 76.2 0.0
19 11:55 NW 13 11.27 A Few Clouds FEW029 16 9 63% 76.2 0.0
19 11:35 NW 15 12.87 A Few Clouds FEW028 16 9 63% 76.2 0.0
19 11:15 W 11 9.66 Mostly Cloudy with Haze BKN028 16 9 63% 76.2 0.0
19 10:55 Vrbl 9 G 19 11.27 Mostly Cloudy BKN028 15 9 68% 76.23 0.0
19 10:35 NW 13 9.66 Overcast with Haze OVC028 16 10 68% 76.23 0.0
19 10:15 NW 15 9.66 Overcast with Haze OVC027 15 10 72% 76.23 0.0
19 09:55 NW 17 9.66 Overcast with Haze OVC028 15 10 72% 76.23 0.0
19 09:35 NW 15 9.66 Overcast with Haze OVC028 15 10 72% 76.23 0.0
19 09:15 NW 13 9.66 Overcast with Haze OVC027 15 10 72% 76.23 0.0
19 08:55 NW 9 9.66 Overcast with Haze OVC027 15 10 72% 76.23 0.0
19 08:35 NW 15 9.66 Overcast with Haze OVC026 14 10 77% 76.23 0.0
19 08:15 NW 11 G 20 8.05 Overcast with Haze OVC026 14 10 77% 76.2 0.0
19 07:55 NW 13 8.05 Overcast with Haze OVC027 14 10 77% 76.2 0.0
19 07:35 NW 15 9.66 Overcast with Haze OVC027 14 10 77% 76.2 0.0
19 07:15 NW 13 11.27 Overcast OVC028 14 10 77% 76.2 0.0
19 06:55 NW 17 11.27 Overcast OVC028 14 11 82% 76.17 0.0
19 06:35 NW 15 11.27 Overcast OVC027 14 10 77% 76.2 0.0
19 06:15 NW 17 11.27 Overcast OVC026 14 11 82% 76.17 0.0
19 05:55 NW 13 11.27 Overcast OVC026 0 0 0% 76.17 0.0
19 05:35 NW 15 11.27 Overcast OVC024 14 11 82% 76.17 0.0
19 05:15 NW 9 11.27 Overcast OVC025 14 11 82% 76.17 0.0
19 04:55 NW 11 11.27 Overcast OVC023 14 11 82% 76.17 0.0
19 04:35 N 15 11.27 Overcast OVC022 14 11 82% 76.17 0.0
19 04:15 NW 17 11.27 Overcast OVC020 14 11 82% 76.2 0.0
19 03:55 NW 9 9.66 Fog/Mist OVC019 14 12 88% 76.2 0.0
19 03:35 NW 19 9.66 Fog/Mist OVC018 14 12 88% 76.2 0.0
19 03:15 NW 15 11.27 Overcast OVC018 14 12 88% 76.2 0.0
19 02:55 NW 20 11.27 Overcast OVC018 14 12 88% 76.23 0.0
19 02:35 NW 6 11.27 Overcast OVC017 0 0 0% 76.23 0.0
19 02:15 NW 17 11.27 Overcast OVC017 14 12 88% 76.23 0.0
19 01:55 Vrbl 9 G 22 9.66 Fog/Mist OVC017 14 12 88% 76.23 0.0
19 01:35 NW 9 11.27 Overcast OVC018 14 12 88% 76.23 0.0
19 01:15 NW 17 11.27 Overcast OVC018 14 12 88% 76.23 0.0
19 00:55 NW 20 11.27 Overcast OVC018 14 12 88% 76.25 0.0
19 00:35 NW 13 11.27 Overcast OVC019 14 12 88% 76.25 0.0
19 00:15 NW 17 9.66 Overcast with Haze OVC019 14 12 88% 76.25 0.0
18 23:55 N 9 G 20 11.27 Overcast OVC020 14 12 88% 76.25 0.0
18 23:35 NW 13 G 22 11.27 Overcast OVC020 14 12 88% 76.28 0.0
18 23:15 Calm 11.27 Overcast OVC020 0 0 0% 76.28 0.0
18 22:55 NW 19 9.66 Overcast with Haze OVC019 14 12 88% 76.3 0.0
18 22:35 NW 11 9.66 Fog/Mist OVC018 15 12 82% 76.28 0.0
18 22:15 NW 11 G 24 9.66 Fog/Mist OVC018 14 12 88% 76.28 0.0
18 21:55 NW 15 G 26 9.66 Fog/Mist OVC018 15 12 82% 76.28 0.0
18 21:35 NW 15 9.66 Fog/Mist OVC017 15 13 88% 76.28 0.0
18 21:15 NW 11 11.27 Overcast OVC017 15 13 88% 76.28 0.0
18 20:55 NW 17 9.66 Fog/Mist OVC016 15 13 88% 76.28 0.0
18 20:35 NW 11 8.05 Fog/Mist OVC016 15 13 88% 76.28 0.0
18 20:15 NW 15 G 24 9.66 Fog/Mist OVC017 14 13 94% 76.25 0.0
18 19:55 NW 17 9.66 Fog/Mist OVC016 15 13 88% 76.25 0.0
18 19:35 NW 19 9.66 Overcast OVC016 0 0 0% 76.25 0.0
18 19:15 NW 19 9.66 Fog/Mist OVC016 15 13 88% 76.23 0.0
18 18:55 NW 17 G 26 11.27 Overcast OVC015 14 13 94% 76.23 0.0
18 18:35 NW 17 6.44 Fog/Mist OVC014 15 14 94% 76.23 0.0
18 18:15 NW 17 6.44 Fog/Mist OVC015 15 14 94% 76.23 0.0
18 17:55 NW 19 6.44 Fog/Mist OVC014 15 13 88% 76.23 0.0
18 17:35 NW 15 6.44 Fog/Mist OVC013 15 14 94% 76.23 0.0
18 17:15 NW 15 G 24 8.05 Fog/Mist OVC013 15 14 94% 76.23 0.0
18 16:55 N 17 G 28 6.44 Overcast OVC012 0 0 0% 76.23 0.0
18 16:35 NW 20 8.05 Fog/Mist OVC013 15 14 94% 76.23 0.0
18 16:15 NW 17 G 26 6.44 Fog/Mist OVC013 15 14 94% 76.25 0.0
18 15:55 NW 19 8.05 Fog/Mist BKN012 15 14 94% 76.25 0.0
18 15:35 NW 22 8.05 Fog/Mist FEW009 SCT013 15 14 94% 76.25 0.0
18 15:15 NW 20 6.44 Fog/Mist FEW012 16 14 88% 76.25 0.0
18 14:55 NW 22 6.44 Fog/Mist FEW013 16 14 88% 76.25 0.0
18 14:35 N 19 6.44 Fog/Mist CLR 16 14 88% 76.25 0.0
18 14:15 NW 20 6.44 A Few Clouds FEW013 0 0 0% 76.28 0.0
18 13:55 NW 22 6.44 Fog/Mist FEW009 FEW013 16 15 94% 76.28 0.0
18 13:35 NW 19 6.44 Fog/Mist SCT008 16 15 94% 76.3 0.0
18 13:15 NW 19 4.83 Fog/Mist BKN007 15 15 100% 76.3 0.0
18 12:55 N 17 G 26 4.83 Fog/Mist BKN007 15 15 100% 76.33 0.0
18 12:35 NW 15 4.83 Fog/Mist SCT007 16 15 94% 76.33 0.0
18 12:15 NW 20 4.83 Fog/Mist FEW007 16 15 94% 76.33 0.0
18 11:55 N 13 G 24 4.83 Fog/Mist FEW009 FEW013 16 15 94% 76.33 0.0
18 11:35 NW 17 6.44 Fog/Mist FEW009 FEW013 16 15 94% 76.33 0.0
18 11:15 NW 13 4.83 Fog/Mist CLR 16 15 94% 76.33 0.0
18 10:55 N 13 4.83 Fog/Mist FEW009 FEW014 16 15 94% 76.33 0.0
18 10:35 Vrbl 9 4.83 Fog/Mist SCT009 SCT014 16 15 94% 76.33 0.0
18 10:15 NW 9 4.83 Fog/Mist BKN008 16 15 94% 76.33 0.0
18 09:55 N 7 4.83 Fog/Mist BKN008 15 15 100% 76.33 0.0
18 09:35 Calm 4.83 Fog/Mist OVC008 15 15 100% 76.3 0.0
18 09:15 W 7 4.83 Fog/Mist OVC007 15 15 100% 76.3 0.0
18 08:55 Calm 4.83 Fog/Mist OVC007 15 15 100% 76.28 0.0
18 08:35 E 7 4.83 Fog/Mist OVC006 14 14 100% 76.25 0.0
18 08:15 E 7 6.44 Fog/Mist OVC006 14 14 100% 76.23 0.0
18 07:55 E 7 6.44 Fog/Mist OVC006 13 13 100% 76.23 0.0
18 07:35 NE 7 6.44 Fog/Mist OVC007 13 13 100% 76.2 0.0
18 07:15 E 11 8.05 Fog/Mist OVC007 13 13 100% 76.2 0.0
18 06:55 E 13 8.05 Overcast OVC006 0 0 0% 76.2 0.0
18 06:35 NE 7 8.05 Fog/Mist OVC004 13 13 100% 76.2 0.0
18 06:15 NE 9 8.05 Fog/Mist OVC005 13 13 100% 76.2 0.0
18 05:55 NE 9 4.83 Overcast OVC005 0 0 0% 76.2 0.0
18 05:35 Calm 8.05 Fog/Mist OVC004 13 13 100% 76.2 0.0
18 05:15 NE 7 6.44 Overcast OVC004 0 0 0% 76.17 0.0
18 04:55 E 11 6.44 Fog/Mist OVC004 13 13 100% 76.17 0.0
18 04:35 NE 9 6.44 Fog/Mist OVC005 13 13 100% 76.17 0.0
18 04:15 Calm 8.05 Fog/Mist OVC005 13 13 100% 76.17 0.0
18 03:55 E 9 8.05 Fog/Mist OVC005 13 13 100% 76.17 0.0
18 03:35 Calm 8.05 Fog/Mist OVC005 13 13 100% 76.17 0.0
18 03:15 Calm 8.05 Fog/Mist OVC006 13 13 100% 76.17 0.0
18 02:55 Calm 8.05 Fog/Mist OVC006 12 12 100% 76.17 0.0
18 02:35 Calm 8.05 Fog/Mist OVC006 10 10 100% 76.17 0.0
18 02:15 Calm 9.66 Fog/Mist OVC006 10 10 100% 76.17 0.0
18 01:55 Calm 9.66 Fog/Mist OVC006 9 9 100% 76.17 0.0
18 01:35 Calm 9.66 Fog/Mist OVC006 9 9 100% 76.17 0.0
18 01:15 Calm 9.66 Fog/Mist OVC006 10 10 100% 76.2 0.0
18 00:55 Calm 9.66 Fog/Mist BKN005 9 9 100% 76.2 0.0
18 00:35 Calm 9.66 Overcast OVC005 0 0 0% 76.2 0.0
18 00:15 Calm 11.27 Mostly Cloudy BKN004 9 9 100% 76.2 0.0
17 23:55 Calm 9.66 Fog/Mist BKN005 0 0 0% 76.2 0.0
17 23:35 Calm 9.66 Fog/Mist BKN005 10 10 100% 76.2 0.0
17 23:15 Calm 9.66 Fog/Mist BKN005 10 10 100% 76.2 0.0
17 22:55 Calm 11.27 Fair CLR 11 10 94% 76.2 0.0
17 22:35 Calm 12.87 Fair CLR 11 9 88% 76.2 0.0
17 22:15 Calm 12.87 Fair CLR 11 9 88% 76.2 0.0
17 21:55 Calm 11.27 Fair CLR 12 10 88% 76.17 0.0
17 21:35 Calm 11.27 Fair CLR 11 11 100% 76.17 0.0
17 21:15 Calm 11.27 A Few Clouds FEW003 12 10 88% 76.17 0.0
17 20:55 Calm 9.66 Fog/Mist CLR 12 12 100% 76.17 0.0
17 20:35 NE 6 11.27 Fair CLR 13 12 94% 76.17 0.0
17 20:15 Calm 9.66 Fog/Mist CLR 14 13 94% 76.17 0.0
17 19:55 Calm 8.05 Fog/Mist CLR 15 14 94% 76.17 0.0
17 19:35 Calm 9.66 Fog/Mist CLR 15 15 100% 76.15 0.0
17 19:15 Calm 8.05 Fog/Mist FEW022 15 15 100% 76.15 0.0
17 18:55 Calm 9.66 Fog/Mist FEW022 16 15 94% 76.12 0.0
17 18:35 NW 11 6.44 Fog/Mist CLR 16 16 100% 76.12 0.0
17 18:15 NW 13 6.44 Fog/Mist CLR 17 16 94% 76.12 0.0
17 17:55 NW 15 8.05 Fair with Haze CLR 18 16 88% 76.12 0.0
17 17:35 NW 15 8.05 Fair with Haze CLR 19 15 78% 76.12 0.0
17 17:15 NW 17 9.66 Fair with Haze CLR 20 14 69% 76.12 0.0
17 16:55 NW 17 9.66 Fair with Haze CLR 21 13 60% 76.15 0.0
17 16:35 NW 17 12.87 Fair CLR 0 0 0% 76.15 0.0
17 16:15 NW 19 11.27 Fair CLR 22 13 57% 76.15 0.0
17 15:55 N 15 G 26 9.66 Fair with Haze CLR 21 14 64% 76.15 0.0
17 15:35 NW 20 11.27 Fair CLR 21 14 64% 76.17 0.0
17 15:15 NW 22 9.66 Fair with Haze CLR 21 15 69% 76.17 0.0
17 14:55 NW 22 11.27 Fair CLR 0 0 0% 76.17 0.0
17 14:35 NW 22 9.66 Fair with Haze CLR 21 16 73% 76.2 0.0
17 14:15 NW 22 11.27 Fair CLR 22 15 65% 76.2 0.0
17 13:55 NW 15 9.66 Fair with Haze CLR 23 15 61% 76.23 0.0
17 13:35 NW 7 9.66 Fair with Haze CLR 25 13 47% 26 76.25 0.0
17 13:15 Calm 9.66 Fair with Haze CLR 25 13 47% 26 76.25 0.0
17 12:55 S 9 9.66 Fair with Haze CLR 24 14 54% 25 76.28 0.0
17 12:35 Vrbl 6 9.66 Fair with Haze CLR 24 13 50% 25 76.3 0.0
17 12:15 SE 6 11.27 Fair CLR 0 0 0% 76.3 0.0
17 11:55 S 7 12.87 Fair CLR 23 10 44% 76.3 0.0
17 11:35 S 9 9.66 Fair with Haze CLR 22 13 57% 76.33 0.0
17 11:15 S 7 9.66 Fair with Haze CLR 21 14 64% 76.33 0.0
17 10:55 S 7 6.44 Fair with Haze CLR 21 15 69% 76.33 0.0
17 10:35 S 7 8.05 Fair with Haze CLR 20 14 69% 76.33 0.0
17 10:15 S 7 8.05 Fair with Haze CLR 20 14 69% 76.33 0.0
17 09:55 S 7 8.05 Fair with Haze CLR 19 14 73% 76.33 0.0
17 09:35 S 7 8.05 Fair with Haze CLR 18 14 78% 76.35 0.0
17 09:15 SE 6 9.66 Fair with Haze CLR 18 14 78% 76.33 0.0
17 08:55 Calm 9.66 Fair with Haze CLR 17 12 73% 76.33 0.0
17 08:35 Calm 9.66 Fair with Haze CLR 15 8 63% 76.33 0.0
17 08:15 Calm 12.87 Fair CLR 12 7 72% 76.3 0.0
17 07:55 Calm 9.66 Fair CLR 0 0 0% 76.3 0.0
17 07:35 Calm 12.87 Fair CLR 10 8 88% 76.3 0.0
17 07:15 Calm 12.87 Fair CLR 11 9 88% 76.3 0.0
17 06:55 Calm 14.48 Fair CLR 10 8 88% 76.33 0.0
17 06:35 Calm 12.87 Fair CLR 10 9 94% 76.33 0.0
17 06:15 N 6 12.87 Fair CLR 10 8 88% 76.33 0.0
17 05:55 Calm 14.48 Fair CLR 10 8 88% 76.33 0.0
17 05:35 Calm 14.48 Fair CLR 10 6 76% 76.3 0.0
17 05:15 Calm 14.48 Fair CLR 11 7 77% 76.3 0.0
17 04:55 NW 9 12.87 Fair CLR 11 9 88% 76.3 0.0
17 04:35 N 6 12.87 Fair CLR 10 7 82% 76.3 0.0
17 04:15 Calm 14.48 Fair CLR 10 6 76% 76.3 0.0
17 03:55 Calm 14.48 Fair CLR 11 6 72% 76.28 0.0
17 03:35 Calm 12.87 A Few Clouds FEW043 10 7 82% 76.3 0.0
17 03:15 Calm 14.48 Fair CLR 11 6 72% 76.3 0.0
17 02:55 Calm 14.48 Fair CLR 11 7 77% 76.33 0.0
17 02:35 Calm 16.09 Fair CLR 12 5 63% 76.33 0.0
17 02:15 Calm 14.48 Fair CLR 11 6 72% 76.3 0.0
17 01:55 Calm 16.09 Fair CLR 0 0 0% 76.3 0.0
17 01:35 Calm 14.48 Fair CLR 12 5 63% 76.3 0.0
17 01:15 Calm 14.48 Fair CLR 12 5 63% 76.33 0.0
17 00:55 Calm 14.48 Fair CLR 12 5 63% 76.33 0.0
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
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)