Temperature
Cold by day, cold at night.
46°Ftypical December high
Typical range
December climate
December in Montauk
United States · Northeast US
Cold days. Wind on exposed beaches is the main drawback.
Some tradeoffs
Daytime high
46°F
Lows around 39°F
Rain
Several rainy days
Sun
5.5 h/day
Air feel
Very dry
Sea temp
47°F
Too cold for swimming
Wind
18 mph
Windy
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 12 wet days, the highest monthly average.
39%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
5.7 hDecember sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryDecember Heat feel
Easy airWarm airHumid air
Hourly temperature pattern
In December, afternoons feel about 29° and nights feel near 27°.
FreezingVery coldColdCoolComfortableNight hours
Clear sky
Mostly cloudy skies this month.
37%December Clear sky
Clear skyCloud
Wind pattern
Wind can affect exposed beach comfort.
18 mphDecember Windy
Sea temperature
47°FDecember sea temp
More detailIncludes daypart comfort
Typical December day
December late afternoons are around 43°F, and early evening stays near 43°F.
Avg temp Typical range
Morning41°F
Rain17%
Cloud62%
Humid airLow
Sun intensityLow
Midday42°F
Rain17%
Cloud64%
Humid airLow
Sun intensityLow
Late afternoon43°F
Rain18%
Cloud65%
Humid airLow
Sun intensityMinimal
Early evening43°F
Rain17%
Cloud63%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 40 | 32 | 4.2 | 11 | 6.4 | 71 | 42 |
| Feb | 40 | 32 | 3.8 | 11 | 7.3 | 71 | 39 |
| Mar | 43 | 36 | 4.6 | 10 | 8.4 | 73 | 39 |
| Apr | 49 | 44 | 4.1 | 11 | 9.5 | 79 | 43 |
| May | 56 | 52 | 3.9 | 11 | 10.4 | 84 | 51 |
| Jun | 65 | 62 | 3.3 | 9 | 11.4 | 86 | 61 |
| Jul | 72 | 69 | 3.0 | 8 | 12.0 | 86 | 69 |
| Aug | 73 | 70 | 3.5 | 8 | 11.2 | 83 | 71 |
| Sep | 69 | 65 | 3.9 | 8 | 9.5 | 79 | 67 |
| Oct | 62 | 56 | 4.9 | 10 | 8.2 | 73 | 61 |
| Nov | 54 | 47 | 3.8 | 9 | 6.5 | 70 | 54 |
| Dec | 46 | 39 | 4.9 | 12 | 5.7 | 71 | 47 |
Similar climates
Similar
Similar travel styleEast HamptonUnited StatesSimilar travel styleMartha's VineyardUnited StatesSimilar travel styleNantucketUnited StatesSimilar travel styleSouthamptonUnited States
Want a side-by-side climate view? Compare Montauk with East Hampton.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology