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 21:55 Calm 4.00 Fog/Mist CLR 50 50 100% 30.01 0.0
19 21:35 Calm 3.00 Fog/Mist CLR 50 50 100% 30 0.0
19 21:15 Calm 3.00 Fog/Mist CLR 51.8 51.8 100% 30 0.0
19 20:55 Calm 4.00 Fog/Mist CLR 51.8 51.8 100% 30 0.0
19 20:35 NW 6 3.00 Fog/Mist CLR 51.8 51.8 100% 30 0.0
19 20:15 NW 8 2.50 Fog/Mist CLR 53.6 53.6 100% 30 0.0
19 19:55 NW 7 3.00 Fair CLR 0 0 0% 29.99 0.0
19 19:35 N 8 G 14 3.00 Fog/Mist CLR 55.4 51.8 88% 29.99 0.0
19 19:15 NW 12 4.00 Fair with Haze CLR 57.2 51.8 82% 29.98 0.0
19 18:55 NW 12 4.00 Fair with Haze CLR 59 51.8 77% 29.98 0.0
19 18:35 NW 14 4.00 Fair with Haze CLR 59 51.8 77% 29.98 0.0
19 18:15 NW 16 4.00 Fair with Haze CLR 60.8 53.6 77% 29.99 0.0
19 17:55 NW 16 5.00 Fair with Haze CLR 62.6 53.6 73% 29.99 0.0
19 17:35 NW 14 4.00 Fair with Haze CLR 62.6 53.6 73% 29.99 0.0
19 17:15 NW 14 7.00 Fair CLR 66.2 50 56% 29.99 0.0
19 16:55 NW 14 5.00 Fair with Haze CLR 66.2 51.8 60% 29.99 0.0
19 16:35 NW 14 6.00 Fair with Haze CLR 66.2 50 56% 30 0.0
19 16:15 NW 13 5.00 Fair with Haze CLR 66.2 51.8 60% 30 0.0
19 15:55 NW 14 4.00 Fair CLR 0 0 0% 30.01 0.0
19 15:35 NW 16 7.00 Fair CLR 69.8 51.8 53% 30.01 0.0
19 15:15 NW 14 G 22 8.00 Fair CLR 69.8 50 50% 30.01 0.0
19 14:55 N 13 8.00 Fair CLR 69.8 42.8 38% 30.01 0.0
19 14:35 NW 14 8.00 Fair CLR 68 48.2 49% 30.02 0.0
19 14:15 NW 13 6.00 Fair with Haze CLR 68 50 53% 30.02 0.0
19 13:55 NW 12 5.00 Fair with Haze CLR 66.2 51.8 60% 30.03 0.0
19 13:35 N 14 5.00 Fair with Haze CLR 64.4 53.6 68% 30.04 0.0
19 13:15 NW 12 4.00 Fair with Haze CLR 62.6 55.4 77% 30.04 0.0
19 12:55 NW 9 4.00 Fair with Haze CLR 64.4 51.8 64% 30.04 0.0
19 12:35 NW 5 3.00 Fair with Haze CLR 64.4 53.6 68% 30.04 0.0
19 12:15 Vrbl 3 4.00 Fair with Haze CLR 62.6 55.4 77% 30.04 0.0
19 11:55 Vrbl 3 3.00 Fair CLR 0 0 0% 30.04 0.0
19 11:35 W 3 3.00 Fair with Haze CLR 60.8 55.4 83% 30.05 0.0
19 11:15 Calm 2.50 Fair with Haze CLR 59 55.4 88% 30.05 0.0
19 10:55 Vrbl 5 3.00 Fair with Haze CLR 59 55.4 88% 30.05 0.0
19 10:35 Vrbl 6 3.00 Fair with Haze CLR 59 53.6 82% 30.04 0.0
19 10:15 W 6 3.00 Fair with Haze CLR 59 53.6 82% 30.04 0.0
19 09:55 Vrbl 3 3.00 Fog/Mist CLR 57.2 53.6 88% 30.04 0.0
19 09:35 Calm 3.00 Fair with Haze CLR 57.2 53.6 88% 30.04 0.0
19 09:15 S 3 2.50 Fair with Haze CLR 57.2 51.8 82% 30.03 0.0
19 08:55 Vrbl 5 3.00 Fog/Mist CLR 55.4 51.8 88% 30.03 0.0
19 08:35 SE 3 3.00 Fog/Mist CLR 53.6 51.8 94% 30.03 0.0
19 08:15 S 3 4.00 Fog/Mist CLR 51.8 50 94% 30.03 0.0
19 07:55 Calm 4.00 Fog/Mist CLR 51.8 50 94% 30.02 0.0
19 07:35 Calm 4.00 Fog/Mist CLR 48.2 48.2 100% 30.02 0.0
19 07:15 Calm 4.00 Fog/Mist CLR 46.4 46.4 100% 30.01 0.0
19 06:55 Calm 5.00 Fair CLR 0 0 0% 30.01 0.0
19 06:35 Calm 5.00 Fog/Mist CLR 41 41 100% 30 0.0
19 06:15 Calm 4.00 Fog/Mist FEW003 41 41 100% 30 0.0
19 05:55 Calm 5.00 Fog/Mist BKN003 41 41 100% 29.99 0.0
19 05:35 Calm 5.00 Fog/Mist BKN003 41 41 100% 29.99 0.0
19 05:15 Calm 6.00 Fog/Mist BKN003 41 41 100% 29.99 0.0
19 04:55 Calm 6.00 Fog/Mist SCT003 42.8 42.8 100% 29.99 0.0
19 04:35 Calm 6.00 Fog/Mist CLR 41 41 100% 29.99 0.0
19 04:15 Calm 6.00 Fog/Mist SCT004 42.8 42.8 100% 30 0.0
19 03:55 E 5 6.00 Fog/Mist BKN004 42.8 42.8 100% 41 30 0.0
19 03:35 Calm 6.00 Fog/Mist FEW003 42.8 42.8 100% 30 0.0
19 03:15 Calm 6.00 Fog/Mist CLR 42.8 42.8 100% 30 0.0
19 02:55 Calm 7.00 Fair CLR 42.8 42.8 100% 30.01 0.0
19 02:35 Calm 6.00 Fog/Mist CLR 42.8 42.8 100% 30.01 0.0
19 02:15 Calm 5.00 Fog/Mist CLR 44.6 42.8 93% 30 0.0
19 01:55 Calm 6.00 Fog/Mist CLR 44.6 44.6 100% 30 0.0
19 01:35 Calm 6.00 Fog/Mist CLR 44.6 44.6 100% 30.01 0.0
19 01:15 Calm 6.00 Fog/Mist CLR 46.4 44.6 93% 30.01 0.0
19 00:55 Calm 6.00 Fog/Mist CLR 46.4 44.6 93% 30.01 0.0
19 00:35 Calm 6.00 Fog/Mist CLR 46.4 44.6 93% 30.01 0.0
19 00:15 Calm 6.00 Fog/Mist CLR 46.4 44.6 93% 30.01 0.0
18 23:55 Calm 6.00 Fog/Mist CLR 48.2 44.6 87% 30.01 0.0
18 23:35 N 5 8.00 Fair CLR 48.2 44.6 87% 47 30.01 0.0
18 23:15 N 5 5.00 Fog/Mist CLR 50 46.4 88% 49 30.01 0.0
18 22:55 N 5 5.00 Fair with Haze CLR 51.8 48.2 88% 30.01 0.0
18 22:35 N 5 5.00 Fair with Haze CLR 53.6 48.2 82% 30 0.0
18 22:15 Vrbl 5 6.00 Fair with Haze CLR 53.6 46.4 77% 30 0.0
18 21:55 N 6 6.00 Fair with Haze CLR 53.6 46.4 77% 30 0.0
18 21:35 NE 3 7.00 Fair CLR 55.4 46.4 72% 29.99 0.0
18 21:15 NE 5 G 13 8.00 Fair CLR 0 0 0% 29.98 0.0
18 20:15 NW 17 8.00 Fair CLR 59 41 51% 29.96 0.0
18 19:55 N 17 G 24 9.00 Fair CLR 60.8 41 48% 29.96 0.0
18 19:35 NW 21 9.00 Fair and Breezy CLR 0 0 0% 29.96 0.0
18 19:15 NW 20 G 26 9.00 Fair CLR 60.8 42.8 52% 29.96 0.0
18 18:55 NW 20 G 26 9.00 Fair CLR 62.6 41 45% 29.95 0.0
18 18:35 NW 18 9.00 Fair CLR 62.6 41 45% 29.95 0.0
18 18:15 NW 14 9.00 Fair CLR 66.2 39.2 37% 29.96 0.0
18 17:55 NW 15 10.00 NULL NULL 66.2 39.2 37% 29.96 0.0
18 17:35 NW 20 0.00 NULL NULL 0 0 0% 29.96 0.0
18 17:15 N 13 G 22 9.00 Fair CLR 66.2 39.2 37% 29.97 0.0
18 16:55 N 16 G 24 10.00 Fair CLR 66.2 39.2 37% 29.97 0.0
18 16:35 NW 21 G 26 10.00 Fair and Breezy CLR 66.2 39.2 37% 29.97 0.0
18 16:15 NW 17 9.00 Fair CLR 66.2 41 40% 29.97 0.0
18 15:55 NW 16 G 22 8.00 Fair CLR 64.4 42.8 46% 29.98 0.0
18 15:35 NW 17 G 23 9.00 Fair CLR 66.2 44.6 46% 29.98 0.0
18 15:15 NW 17 9.00 Fair CLR 66.2 44.6 46% 29.99 0.0
18 14:55 NW 16 7.00 NULL NULL 66.2 46.4 49% 29.99 0.0
18 14:35 NW 16 0.00 NULL NULL 0 0 0% 29.99 0.0
18 13:55 NW 16 G 23 10.00 Fair CLR 69.8 39.2 33% 29.99 0.0
18 13:25 NW 17 9.00 Fair CLR 69.8 37.4 31% 29.99 0.0
18 13:15 NW 16 G 22 8.00 Fair CLR 69.8 39.2 33% 29.99 0.0
18 12:15 NW 16 9.00 NULL NULL 66.2 44.6 46% 29.99 0.0
18 11:55 W 13 G 21 0.00 NULL NULL 68 42.8 40% 29.99 0.0
18 11:35 NW 15 0.00 NULL NULL 0 0 0% 29.98 0.0
18 10:55 N 16 G 24 10.00 NULL NULL 73.4 26.6 17% 29.97 0.0
18 10:35 NE 18 0.00 NULL NULL 0 0 0% 29.97 0.0
18 09:55 N 18 G 26 9.00 Fair CLR 71.6 28.4 20% 29.95 0.0
18 09:35 NE 20 G 26 10.00 NULL NULL 71.6 28.4 20% 29.95 0.0
18 07:55 NE 20 G 30 10.00 Fair CLR 68 26.6 21% 29.92 0.0
18 07:35 NE 20 G 29 9.00 Fair CLR 66.2 26.6 22% 29.92 0.0
18 07:15 NE 20 G 29 10.00 Fair CLR 66.2 26.6 22% 29.92 0.0
18 06:55 NE 16 G 26 10.00 Fair CLR 66.2 26.6 22% 29.91 0.0
18 06:35 NE 18 G 26 10.00 Fair CLR 64.4 26.6 24% 29.91 0.0
18 06:15 N 18 G 25 10.00 Fair CLR 64.4 26.6 24% 29.91 0.0
18 05:55 N 15 G 25 10.00 Fair CLR 64.4 26.6 24% 29.9 0.0
18 05:35 N 15 G 25 10.00 Fair CLR 64.4 26.6 24% 29.89 0.0
18 05:15 N 14 G 25 10.00 Fair CLR 66.2 26.6 22% 29.89 0.0
18 04:55 N 17 G 30 10.00 Fair CLR 66.2 24.8 21% 29.88 0.0
18 04:35 NE 20 G 28 10.00 Fair CLR 66.2 24.8 21% 29.88 0.0
18 04:15 N 15 G 25 10.00 Fair CLR 66.2 24.8 21% 29.88 0.0
18 03:55 N 16 G 32 10.00 Fair CLR 66.2 24.8 21% 29.87 0.0
18 03:35 N 14 G 23 10.00 Fair CLR 66.2 24.8 21% 29.87 0.0
18 03:15 N 17 G 24 10.00 Fair CLR 64.4 24.8 22% 29.86 0.0
18 02:55 N 13 9.00 Fair CLR 0 0 0% 29.86 0.0
18 02:35 N 14 G 22 10.00 Fair CLR 62.6 32 32% 29.86 0.0
18 02:15 N 15 10.00 Fair CLR 60.8 33.8 36% 29.85 0.0
18 01:55 N 15 G 22 10.00 Fair CLR 59 35.6 42% 29.86 0.0
18 01:35 N 14 8.00 Fair CLR 57.2 39.2 51% 29.87 0.0
18 01:15 N 12 9.00 Fair CLR 0 0 0% 29.87 0.0
18 00:55 N 13 10.00 Fair CLR 59 37.4 45% 29.87 0.0
18 00:35 N 13 G 22 10.00 Fair CLR 60.8 37.4 42% 29.86 0.0
17 21:15 NW 18 4.00 Fair with Haze CLR 53.6 48.2 82% 29.85 0.0
17 20:55 N 16 3.00 Fair with Haze CLR 53.6 48.2 82% 29.85 0.0
17 20:35 N 17 3.00 Fair with Haze CLR 53.6 48.2 82% 29.84 0.0
17 20:15 NW 16 3.00 Fair with Haze CLR 53.6 48.2 82% 29.84 0.0
17 19:55 N 16 G 23 3.00 Fair with Haze CLR 55.4 48.2 77% 29.84 0.0
17 19:35 N 12 G 23 3.00 Fair with Haze CLR 55.4 48.2 77% 29.84 0.0
17 19:15 N 17 G 28 3.00 Fair with Haze CLR 57.2 48.2 72% 29.84 0.0
17 18:55 NW 22 3.00 Fair with Haze and Breezy CLR 57.2 48.2 72% 29.84 0.0
17 18:35 NW 20 4.00 Fair with Haze CLR 57.2 48.2 72% 29.84 0.0
17 18:15 N 21 G 26 4.00 Fair and Breezy CLR 0 0 0% 29.83 0.0
17 17:55 N 18 5.00 Fair with Haze CLR 59 48.2 68% 29.84 0.0
17 17:35 N 20 G 25 4.00 Fair with Haze CLR 59 48.2 68% 29.84 0.0
17 17:15 NW 17 G 25 4.00 Fair with Haze CLR 59 48.2 68% 29.85 0.0
17 16:55 NW 17 G 25 4.00 Fair with Haze CLR 59 48.2 68% 29.85 0.0
17 16:35 N 20 G 26 4.00 Fair with Haze CLR 59 48.2 68% 29.86 0.0
17 16:15 NW 20 G 26 4.00 Fair with Haze CLR 59 48.2 68% 29.86 0.0
17 15:55 N 20 G 29 5.00 Fair with Haze CLR 59 48.2 68% 29.87 0.0
17 15:35 N 24 G 32 4.00 Fair with Haze and Breezy CLR 59 48.2 68% 29.87 0.0
17 15:15 N 21 G 26 5.00 Fair with Haze and Breezy CLR 59 48.2 68% 29.87 0.0
17 14:55 N 17 G 28 4.00 Fair with Haze CLR 60.8 48.2 63% 29.87 0.0
17 14:35 N 14 G 25 5.00 Fair with Haze CLR 59 48.2 68% 29.88 0.0
17 14:15 N 20 G 26 5.00 Fair with Haze CLR 59 48.2 68% 29.88 0.0
17 13:55 N 20 G 25 5.00 Fair with Haze CLR 59 48.2 68% 29.89 0.0
17 13:35 NW 14 G 28 5.00 Fair with Haze CLR 59 48.2 68% 29.9 0.0
17 13:15 N 16 G 23 5.00 Fair CLR 0 0 0% 29.9 0.0
17 12:55 NW 22 G 28 5.00 Fair with Haze and Breezy CLR 57.2 46.4 67% 29.91 0.0
17 12:35 N 20 G 29 5.00 Fair with Haze CLR 57.2 48.2 72% 29.91 0.0
17 12:15 N 17 G 28 4.00 Fair with Haze CLR 57.2 48.2 72% 29.92 0.0
17 11:55 N 20 G 26 4.00 Fair with Haze CLR 57.2 48.2 72% 29.92 0.0
17 11:35 N 16 G 23 4.00 Fair with Haze CLR 57.2 48.2 72% 29.92 0.0
17 11:15 NW 18 G 24 4.00 Fair with Haze CLR 57.2 48.2 72% 29.92 0.0
17 10:55 N 15 G 24 5.00 Fair with Haze CLR 57.2 48.2 72% 29.93 0.0
17 10:35 N 18 G 25 4.00 Fair with Haze CLR 55.4 48.2 77% 29.92 0.0
17 10:15 N 15 G 22 5.00 Fair with Haze CLR 55.4 48.2 77% 29.93 0.0
17 09:55 NW 18 4.00 Fair with Haze CLR 55.4 48.2 77% 29.92 0.0
17 09:35 N 17 4.00 Fair with Haze CLR 55.4 48.2 77% 29.91 0.0
17 09:15 N 15 4.00 Fair with Haze CLR 53.6 48.2 82% 29.92 0.0
17 08:55 N 14 G 21 5.00 Fair with Haze CLR 53.6 48.2 82% 29.92 0.0
17 08:35 N 10 4.00 Fair with Haze CLR 53.6 48.2 82% 29.92 0.0
17 08:15 N 10 4.00 Fair with Haze CLR 53.6 48.2 82% 29.91 0.0
17 07:55 N 8 4.00 Fog/Mist CLR 51.8 50 94% 29.91 0.0
17 07:35 N 12 3.00 Fog/Mist CLR 51.8 48.2 88% 29.92 0.0
17 07:15 N 9 G 16 3.00 Fog/Mist CLR 50 48.2 94% 47 29.91 0.0
17 06:55 Vrbl 7 G 15 3.00 Fog/Mist CLR 50 48.2 94% 48 29.91 0.0
17 06:35 N 10 3.00 Fog/Mist CLR 50 48.2 94% 46 29.91 0.0
17 06:15 Vrbl 7 2.50 Fog/Mist CLR 50 48.2 94% 48 29.91 0.0
17 05:55 N 8 G 18 4.00 Fog/Mist CLR 50 48.2 94% 47 29.91 0.0
17 05:35 N 14 3.00 Fog/Mist CLR 50 48.2 94% 45 29.91 0.0
17 05:15 N 12 G 22 4.00 Fog/Mist CLR 50 48.2 94% 46 29.91 0.0
17 04:55 N 9 G 16 4.00 Fog/Mist CLR 50 48.2 94% 47 29.92 0.0
17 04:35 N 9 G 16 4.00 Fog/Mist CLR 50 48.2 94% 47 29.92 0.0
17 04:15 N 8 G 15 3.00 Fog/Mist CLR 50 48.2 94% 47 29.92 0.0
17 03:55 N 9 G 15 4.00 Fog/Mist CLR 50 48.2 94% 47 29.93 0.0
17 03:35 N 9 G 17 4.00 Fog/Mist CLR 50 48.2 94% 47 29.93 0.0
17 03:15 N 7 G 14 3.00 Fog/Mist CLR 50 48.2 94% 48 29.94 0.0
17 02:55 N 8 4.00 Fog/Mist CLR 50 48.2 94% 47 29.94 0.0
17 02:35 N 6 G 13 3.00 Fog/Mist CLR 50 48.2 94% 48 29.94 0.0
17 02:15 NE 6 4.00 Fog/Mist CLR 50 48.2 94% 48 29.94 0.0
17 01:55 N 5 3.00 Fog/Mist CLR 50 48.2 94% 49 29.94 0.0
17 01:35 N 7 G 15 4.00 Fog/Mist CLR 50 48.2 94% 48 29.94 0.0
17 01:15 N 10 G 18 3.00 Fog/Mist CLR 50 48.2 94% 46 29.94 0.0
17 00:55 N 23 G 30 4.00 Fog/Mist and Breezy CLR 50 48.2 94% 44 29.94 0.0
17 00:35 N 18 G 29 3.00 Fog/Mist CLR 50 48.2 94% 44 29.96 0.0
17 00:15 N 18 G 26 3.00 Fog/Mist CLR 50 48.2 94% 44 29.97 0.0
16 23:55 N 17 3.00 Fog/Mist CLR 51.8 48.2 88% 29.97 0.0
16 23:35 N 16 4.00 Fog/Mist CLR 51.8 48.2 88% 29.98 0.0
16 23:15 N 20 4.00 Fog/Mist CLR 51.8 48.2 88% 29.98 0.0
16 22:55 N 15 3.00 Fog/Mist CLR 51.8 48.2 88% 29.99 0.0
16 22:35 N 17 4.00 Fog/Mist CLR 51.8 48.2 88% 29.98 0.0
16 22:15 N 16 G 24 4.00 Fog/Mist CLR 0 0 0% 29.98 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)