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
Imperial (Metric)
Date Time (pdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
19 02:15 Calm 0.50 Fog OVC002 48.2 48.2 100% 30.11 0.0
19 01:55 Calm 1.25 Fog/Mist OVC002 48.2 48.2 100% 30.12 0.0
19 01:35 Calm 0.25 Fog OVC002 50 50 100% 30.12 0.0
19 01:15 N 5 0.25 Fog OVC002 50 50 100% 49 30.13 0.0
19 00:35 Calm 0.75 Fog/Mist OVC002 50 50 100% 30.13 0.0
19 00:15 N 5 0.25 Fog OVC002 51.8 51.8 100% 30.13 0.0
18 23:55 N 8 0.25 Fog OVC002 51.8 51.8 100% 30.13 0.0
18 23:35 N 8 0.50 Fog OVC002 51.8 51.8 100% 30.13 0.0
18 23:15 N 7 0.25 Overcast OVC002 0 0 0% 30.13 0.0
18 22:55 N 10 0.15 Fog OVC002 51.8 51.8 100% 30.12 0.0
18 22:35 N 7 0.75 Fog/Mist OVC002 51.8 51.8 100% 30.11 0.0
18 22:15 N 8 0.25 Fog OVC002 51.8 51.8 100% 30.11 0.0
18 21:55 NW 9 G 16 0.25 Fog OVC002 51.8 51.8 100% 30.1 0.0
18 21:35 NW 8 8.00 Fair CLR 53.6 53.6 100% 30.09 0.0
18 21:15 NW 9 5.00 Fog/Mist FEW003 51.8 51.8 100% 30.09 0.0
18 20:55 Calm 6.00 Fog/Mist SCT003 51.8 51.8 100% 30.08 0.0
18 20:35 Calm 10.00 Fair CLR 53.6 53.6 100% 30.08 0.0
18 20:15 Calm 9.00 Fair CLR 53.6 53.6 100% 30.07 0.0
18 19:55 NW 5 8.00 Fair CLR 0 0 0% 30.07 0.0
18 19:35 NW 6 9.00 Fair CLR 55.4 55.4 100% 30.06 0.0
18 19:15 NW 7 9.00 Fair CLR 55.4 55.4 100% 30.06 0.0
18 18:55 NW 9 9.00 Fair CLR 57.2 57.2 100% 30.05 0.0
18 18:35 NW 6 9.00 Fair CLR 59 57.2 94% 30.05 0.0
18 18:15 NW 12 9.00 Fair CLR 0 0 0% 30.05 0.0
18 17:55 NW 6 10.00 Fair CLR 62.6 57.2 83% 30.04 0.0
18 17:35 NW 9 9.00 Fair CLR 62.6 57.2 83% 30.04 0.0
18 17:15 NW 9 10.00 Fair CLR 0 0 0% 30.04 0.0
18 16:55 NW 13 9.00 Fair CLR 62.6 59 88% 30.04 0.0
18 16:35 NW 8 9.00 Fair CLR 66.2 59 78% 30.04 0.0
18 16:15 NW 13 10.00 Fair CLR 64.4 59 83% 30.04 0.0
18 15:55 NW 15 10.00 Fair CLR 64.4 57.2 78% 30.04 0.0
18 15:35 NW 14 10.00 Fair CLR 66.2 57.2 73% 30.04 0.0
18 15:15 NW 14 10.00 Fair CLR 66.2 57.2 73% 30.04 0.0
18 14:55 NW 15 10.00 Fair CLR 62.6 59 88% 30.05 0.0
18 14:35 NW 14 9.00 Fair CLR 0 0 0% 30.04 0.0
18 14:15 NW 14 10.00 Fair CLR 0 0 0% 30.05 0.0
18 13:55 NW 10 9.00 Fair CLR 64.4 60.8 88% 30.05 0.0
18 13:35 NW 13 9.00 Fair CLR 62.6 59 88% 30.05 0.0
18 13:15 NW 10 9.00 Fair CLR 62.6 59 88% 30.06 0.0
18 12:55 NW 13 9.00 Fair CLR 64.4 60.8 88% 30.06 0.0
18 12:35 NW 12 10.00 Fair CLR 62.6 60.8 94% 30.07 0.0
18 12:15 NW 10 8.00 Fair CLR 62.6 59 88% 30.07 0.0
18 11:55 NW 8 8.00 Fair CLR 62.6 59 88% 30.06 0.0
18 11:35 W 6 7.00 Fair CLR 62.6 59 88% 30.06 0.0
18 11:15 W 3 6.00 Fog/Mist CLR 62.6 59 88% 30.06 0.0
18 10:55 SE 5 5.00 Fog/Mist CLR 62.6 59 88% 30.06 0.0
18 10:35 S 6 7.00 Fair CLR 62.6 59 88% 30.06 0.0
18 10:15 Calm 8.00 Fair CLR 59 59 100% 30.05 0.0
18 09:55 NW 5 5.00 Fog/Mist CLR 59 59 100% 30.05 0.0
18 09:35 Calm 5.00 Fog/Mist CLR 59 57.2 94% 30.04 0.0
18 09:15 S 5 5.00 Fog/Mist CLR 57.2 57.2 100% 30.04 0.0
18 08:55 Calm 6.00 Fog/Mist CLR 57.2 57.2 100% 30.03 0.0
18 08:35 Calm 8.00 Fair CLR 53.6 53.6 100% 30.03 0.0
18 08:15 Calm 9.00 Fair CLR 51.8 51.8 100% 30.03 0.0
18 07:55 Vrbl 3 5.00 Fog/Mist CLR 48.2 48.2 100% 30.02 0.0
18 07:35 NW 5 8.00 Fair CLR 46.4 46.4 100% 45 30.02 0.0
18 07:15 Calm 9.00 Fair CLR 46.4 46.4 100% 30.01 0.0
18 06:55 Calm 9.00 Fair CLR 46.4 46.4 100% 30.01 0.0
18 06:35 Calm 10.00 Fair CLR 46.4 46.4 100% 30.01 0.0
18 06:15 Calm 8.00 A Few Clouds FEW003 48.2 48.2 100% 30.01 0.0
18 05:55 Calm 8.00 A Few Clouds FEW003 48.2 48.2 100% 30.02 0.0
18 05:35 Calm 7.00 A Few Clouds FEW003 48.2 48.2 100% 30.01 0.0
18 05:15 Calm 6.00 Fog/Mist SCT003 50 50 100% 30.02 0.0
18 04:55 Calm 6.00 Fog/Mist CLR 51.8 51.8 100% 30.02 0.0
18 04:35 Calm 7.00 Fair CLR 53.6 53.6 100% 30.01 0.0
18 04:15 N 5 8.00 Fair CLR 53.6 53.6 100% 30.01 0.0
18 03:55 N 8 8.00 Fair CLR 0 0 0% 30.02 0.0
18 03:15 Calm 10.00 Fair CLR 50 50 100% 30.02 0.0
18 02:55 NW 3 9.00 Fair CLR 50 50 100% 30.01 0.0
18 02:15 N 3 10.00 Fair CLR 51.8 51.8 100% 30.01 0.0
18 01:55 NW 3 9.00 Fair CLR 53.6 53.6 100% 30.01 0.0
18 01:35 NW 6 9.00 Fair CLR 53.6 53.6 100% 30.01 0.0
18 01:15 NW 6 8.00 Fair CLR 53.6 53.6 100% 30 0.0
18 00:55 N 8 9.00 Fair CLR 55.4 55.4 100% 30 0.0
18 00:35 NW 10 9.00 Fair CLR 55.4 55.4 100% 30 0.0
18 00:15 NW 12 6.00 Fair CLR 0 0 0% 29.99 0.0
17 23:55 NW 10 6.00 Fog/Mist CLR 55.4 55.4 100% 29.99 0.0
17 23:35 NW 9 5.00 Fair CLR 0 0 0% 29.98 0.0
17 23:15 NW 8 7.00 Fair CLR 55.4 55.4 100% 29.98 0.0
17 22:55 NW 7 7.00 Fair CLR 57.2 55.4 94% 29.98 0.0
17 22:35 NW 7 7.00 Fair CLR 57.2 55.4 94% 29.98 0.0
17 22:15 NW 8 6.00 Fog/Mist CLR 57.2 55.4 94% 29.97 0.0
17 21:55 NW 8 7.00 Fair CLR 57.2 55.4 94% 29.97 0.0
17 21:35 NW 8 6.00 Fog/Mist CLR 59 55.4 88% 29.97 0.0
17 21:15 NW 8 7.00 Fair CLR 0 0 0% 29.97 0.0
17 20:55 NW 9 9.00 Fair CLR 60.8 57.2 88% 29.97 0.0
17 20:35 N 7 10.00 Fair CLR 62.6 55.4 77% 29.96 0.0
17 20:15 N 9 9.00 Fair CLR 64.4 55.4 73% 29.96 0.0
17 19:55 NW 12 9.00 Fair CLR 66.2 53.6 64% 29.96 0.0
17 19:35 NW 7 9.00 Fair CLR 66.2 53.6 64% 29.95 0.0
17 19:15 NW 12 9.00 Fair CLR 68 53.6 60% 29.94 0.0
17 18:55 NW 9 9.00 Fair CLR 69.8 51.8 53% 29.94 0.0
17 18:35 NW 12 9.00 Fair CLR 73.4 50 44% 29.93 0.0
17 18:15 NW 13 10.00 Fair CLR 75.2 50 41% 78 29.93 0.0
17 17:55 NW 13 10.00 Fair CLR 75.2 50 41% 78 29.93 0.0
17 17:35 NW 13 10.00 Fair CLR 75.2 51.8 44% 78 29.93 0.0
17 17:15 NW 14 10.00 Fair CLR 75.2 53.6 47% 78 29.93 0.0
17 16:55 NW 12 10.00 Fair CLR 77 55.4 47% 79 29.93 0.0
17 16:35 NW 12 10.00 Fair CLR 77 55.4 47% 79 29.94 0.0
17 16:15 N 12 10.00 Fair CLR 78.8 55.4 45% 79 29.94 0.0
17 15:55 N 9 10.00 Fair CLR 82.4 55.4 40% 82 29.94 0.0
17 15:35 NW 13 10.00 Fair CLR 80.6 57.2 45% 81 29.94 0.0
17 15:15 NW 10 10.00 Fair CLR 78.8 57.2 48% 80 29.95 0.0
17 14:55 NW 12 10.00 Fair CLR 77 57.2 51% 79 29.96 0.0
17 14:35 NW 13 10.00 Fair CLR 77 57.2 51% 79 29.96 0.0
17 14:15 NW 10 10.00 Fair CLR 78.8 59 51% 80 29.97 0.0
17 13:55 NW 8 10.00 Fair CLR 73.4 60.8 65% 29.98 0.0
17 13:35 NW 8 8.00 Fair CLR 77 60.8 57% 79 29.99 0.0
17 13:15 Calm 9.00 Fair CLR 73.4 60.8 65% 30 0.0
17 12:55 NW 3 9.00 Fair CLR 71.6 62.6 73% 30.01 0.0
17 12:35 Calm 8.00 Fair CLR 71.6 60.8 69% 30.01 0.0
17 12:15 Calm 9.00 Fair CLR 69.8 59 69% 30.02 0.0
17 11:55 NW 3 7.00 Fair CLR 68 59 73% 30.02 0.0
17 11:35 NW 5 7.00 Fair CLR 68 59 73% 30.02 0.0
17 11:15 Calm 8.00 Fair CLR 66.2 59 78% 30.03 0.0
17 10:55 NW 5 9.00 Fair CLR 66.2 57.2 73% 30.03 0.0
17 10:35 NW 5 7.00 Fair CLR 64.4 57.2 78% 30.03 0.0
17 10:15 Vrbl 5 7.00 Fair CLR 64.4 57.2 78% 30.02 0.0
17 09:55 Calm 8.00 Fair CLR 62.6 57.2 83% 30.02 0.0
17 09:35 Calm 9.00 Fair CLR 60.8 59 94% 30.02 0.0
17 09:15 Calm 8.00 Fair CLR 59 57.2 94% 30.02 0.0
17 08:55 Calm 6.00 Fair CLR 0 0 0% 30.02 0.0
17 08:35 Calm 8.00 Fair CLR 53.6 53.6 100% 30.01 0.0
17 08:15 Calm 9.00 Fair CLR 50 50 100% 30.01 0.0
17 07:55 Calm 9.00 Fair CLR 48.2 48.2 100% 30 0.0
17 07:35 Calm 9.00 Fair CLR 48.2 48.2 100% 30 0.0
17 07:15 NW 6 9.00 Fair CLR 0 0 0% 29.99 0.0
17 06:35 Calm 10.00 Fair CLR 46.4 46.4 100% 29.98 0.0
17 06:15 Calm 10.00 Fair CLR 46.4 46.4 100% 29.98 0.0
17 05:55 Calm 9.00 Fair CLR 46.4 46.4 100% 29.98 0.0
17 05:35 Calm 10.00 Fair CLR 46.4 46.4 100% 29.98 0.0
17 05:15 Calm 10.00 Fair CLR 48.2 48.2 100% 29.99 0.0
17 04:55 Calm 9.00 Fair CLR 46.4 46.4 100% 29.99 0.0
17 04:35 Calm 10.00 Fair CLR 48.2 48.2 100% 30 0.0
17 04:15 Calm 10.00 Fair CLR 0 0 0% 29.99 0.0
17 03:55 Calm 9.00 Fair CLR 48.2 48.2 100% 29.99 0.0
17 03:35 Calm 10.00 Fair CLR 0 0 0% 30 0.0
17 03:15 Calm 10.00 Fair CLR 48.2 48.2 100% 30.01 0.0
17 02:55 Calm 9.00 Fair CLR 46.4 46.4 100% 30.01 0.0
17 02:35 Calm 9.00 Fair CLR 48.2 48.2 100% 30.02 0.0
17 02:15 Calm 10.00 Fair CLR 46.4 46.4 100% 30.02 0.0
17 01:55 Calm 9.00 Fair CLR 48.2 48.2 100% 30.01 0.0
17 01:35 Calm 10.00 Fair CLR 48.2 48.2 100% 30.01 0.0
17 01:15 Calm 9.00 Fair CLR 48.2 48.2 100% 30.01 0.0
17 00:55 Calm 9.00 Fair CLR 48.2 48.2 100% 30.02 0.0
17 00:35 Calm 10.00 Fair CLR 48.2 48.2 100% 30.03 0.0
17 00:15 Calm 9.00 A Few Clouds FEW003 50 50 100% 30.03 0.0
16 23:55 Calm 8.00 Fair CLR 50 50 100% 30.02 0.0
16 23:35 NW 3 9.00 Fair CLR 50 50 100% 30.02 0.0
16 23:15 Calm 9.00 Fair CLR 51.8 50 94% 30.02 0.0
16 22:55 Calm 10.00 Fair CLR 51.8 50 94% 30.02 0.0
16 22:35 NW 5 8.00 Fair CLR 53.6 53.6 100% 30.03 0.0
16 22:15 NW 9 8.00 Fair CLR 55.4 55.4 100% 30.02 0.0
16 21:55 NW 9 8.00 Fair CLR 55.4 55.4 100% 30.02 0.0
16 21:35 NW 6 9.00 Fair CLR 55.4 55.4 100% 30.01 0.0
16 21:15 NW 6 8.00 Fair CLR 55.4 55.4 100% 30.01 0.0
16 20:55 NW 10 10.00 Fair CLR 57.2 55.4 94% 30.01 0.0
16 20:35 NW 9 10.00 Fair CLR 59 53.6 82% 30 0.0
16 20:15 NW 10 7.00 Fair CLR 59 55.4 88% 30 0.0
16 19:55 NW 9 10.00 Fair CLR 60.8 53.6 77% 29.99 0.0
16 19:35 NW 6 9.00 Fair CLR 60.8 53.6 77% 29.99 0.0
16 19:15 NW 7 10.00 Fair CLR 64.4 51.8 64% 29.99 0.0
16 18:55 N 9 10.00 Fair CLR 69.8 48.2 46% 29.98 0.0
16 18:35 N 10 10.00 Fair CLR 71.6 46.4 41% 29.98 0.0
16 18:15 NW 13 10.00 Fair CLR 71.6 46.4 41% 29.98 0.0
16 17:55 NW 13 10.00 Fair CLR 71.6 48.2 44% 29.98 0.0
16 17:35 NW 10 10.00 Fair CLR 73.4 48.2 41% 29.98 0.0
16 17:15 NW 13 10.00 Fair CLR 73.4 48.2 41% 29.99 0.0
16 16:55 NW 14 9.00 Fair CLR 71.6 51.8 50% 29.99 0.0
16 16:35 NW 9 10.00 Fair CLR 73.4 51.8 47% 30 0.0
16 16:15 N 12 G 18 9.00 Fair CLR 73.4 48.2 41% 30 0.0
16 15:55 N 12 10.00 Fair CLR 77 50 39% 78 30 0.0
16 15:35 NW 12 10.00 Fair CLR 78.8 51.8 39% 79 30.01 0.0
16 15:15 N 9 10.00 Fair CLR 78.8 53.6 42% 79 30.01 0.0
16 14:55 NW 12 10.00 Fair CLR 75.2 55.4 50% 78 30.02 0.0
16 14:35 NW 8 9.00 Fair CLR 75.2 59 57% 78 30.03 0.0
16 14:15 NW 8 9.00 Fair CLR 71.6 60.8 69% 30.04 0.0
16 13:55 NW 8 9.00 Fair CLR 69.8 59 69% 30.05 0.0
16 13:35 NW 8 8.00 Fair CLR 68 59 73% 30.06 0.0
16 13:15 Vrbl 3 8.00 Fair CLR 66.2 59 78% 30.07 0.0
16 12:55 Calm 9.00 Fair CLR 66.2 59 78% 30.08 0.0
16 12:35 SE 5 8.00 Fair CLR 66.2 55.4 68% 30.09 0.0
16 12:15 S 5 9.00 Fair CLR 64.4 55.4 73% 30.09 0.0
16 11:55 SE 5 7.00 Fair CLR 62.6 57.2 83% 30.09 0.0
16 11:35 S 6 6.00 Fair with Haze CLR 62.6 59 88% 30.09 0.0
16 11:15 S 6 6.00 Fog/Mist CLR 59 57.2 94% 30.09 0.0
16 10:55 S 8 6.00 Fog/Mist CLR 59 57.2 94% 30.09 0.0
16 10:35 S 9 5.00 Fog/Mist CLR 59 57.2 94% 30.09 0.0
16 10:15 SE 7 5.00 Fog/Mist CLR 57.2 57.2 100% 30.09 0.0
16 09:55 SE 6 4.00 Fog/Mist CLR 59 57.2 94% 30.08 0.0
16 09:35 Calm 5.00 Fog/Mist CLR 60.8 59 94% 30.07 0.0
16 09:15 Calm 5.00 Fog/Mist CLR 59 57.2 94% 30.07 0.0
16 08:55 Calm 3.00 Fog/Mist CLR 55.4 55.4 100% 30.06 0.0
16 08:35 Calm 8.00 Fair CLR 53.6 53.6 100% 30.06 0.0
16 08:15 Calm 9.00 Fair CLR 48.2 48.2 100% 30.06 0.0
16 07:55 Calm 9.00 Fair CLR 46.4 46.4 100% 30.05 0.0
16 07:35 Calm 8.00 Fair CLR 46.4 46.4 100% 30.05 0.0
16 07:15 Calm 10.00 Fair CLR 44.6 44.6 100% 30.05 0.0
16 06:55 Calm 10.00 Fair CLR 44.6 44.6 100% 30.05 0.0
16 06:35 Calm 10.00 Fair CLR 46.4 46.4 100% 30.05 0.0
16 06:15 NW 5 9.00 Fair CLR 0 0 0% 30.05 0.0
16 05:55 Calm 10.00 Fair CLR 44.6 44.6 100% 30.05 0.0
16 05:35 Calm 10.00 Fair CLR 44.6 44.6 100% 30.04 0.0
16 05:15 Calm 9.00 Fair CLR 46.4 46.4 100% 30.04 0.0
16 04:55 Calm 10.00 Fair CLR 46.4 46.4 100% 30.04 0.0
16 04:35 Calm 10.00 Fair CLR 44.6 44.6 100% 30.04 0.0
16 04:15 Calm 10.00 Fair CLR 46.4 46.4 100% 30.04 0.0
16 03:55 Calm 10.00 Fair CLR 44.6 44.6 100% 30.05 0.0
16 03:35 Calm 7.00 Fair CLR 46.4 46.4 100% 30.05 0.0
16 03:15 NW 3 9.00 Fair CLR 46.4 46.4 100% 30.06 0.0
16 02:55 Calm 9.00 Fair CLR 0 0 0% 30.06 0.0
16 02:35 Calm 8.00 Fair CLR 46.4 46.4 100% 30.06 0.0
Date Time (pdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)