December is the wettest month at Bridgehampton, at 5.0 inches, and it has the shortest days. The earliest sunset of the year falls around December 9 at 4:21 p.m. The winter solstice brings only 9 h 16 min of daylight. Keep a storm plan within reach.
| Measure | Normal |
|---|---|
| Average high and low, Bridgehampton | 44° / 28° |
| Average high and low, Montauk | 45° / 34° |
| Precipitation, Bridgehampton | 5.0 in |
| Snow, Bridgehampton | 4.1 in |
| Sunrise and sunset on the 15th | 7:07 a.m. / 4:22 p.m. |
| Daylight on the 15th | 9 h 16 min |
Daylight
On December 15 the sun rises at 7:07 a.m. and sets at 4:22 p.m. The sunset stops getting earlier in early December, a few weeks before the solstice, because the sunrise keeps getting later until January. The longest night of the year follows.
Weather
December averages a high of 44° and a low of 28° at Bridgehampton, with 4.1 inches of snow. At Montauk Airport the average low is 34°, and at Gabreski Airport 26°.
What recurs
Seals use the southeastern Long Island shore in winter, according to the state Department of Environmental Conservation, and NOAA asks you to stay at least 50 yards away; see seal watching. Ticks can be active in any spell above 40°F, the county says. Archery season on county land continues through January 31.
If you live here
Check your fuel level before the first cold snap, and read how your house heats in the heating guide.
Sources
- NYSDEC, Marine Mammals of New York
- NOAA NCEI, U.S. Climate Normals 1991-2020, monthly (Bridgehampton, Montauk Airport, Westhampton Gabreski Airport)
- NOAA Global Monitoring Laboratory, solar calculation equations (applied to Bridgehampton)
Checked October 2026. Rules, fees and hours change; confirm with the office or operator before you act.