Temperature
Cold by day, freezing at night.
40°Ftypical January high
Typical range
January climate
January in Greenport / North Fork
United States · Northeast US
Cold weather and wind on exposed beaches are the main limitations.
Limited, but doable
Daytime high
40°F
Lows around 32°F
Rain
Several rainy days
Sun
6.5 h/day
Air feel
Very dry
Sea temp
42°F
Too cold for swimming
Wind
17 mph
Windy
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 11 wet days, the highest monthly average.
35%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
6.5 hJanuary sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryJanuary Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In January, afternoons feel about 23° and nights feel near 20°.
FreezingVery coldColdCoolComfortableNight hours
Clear sky
Mostly cloudy skies this month.
39%January Clear sky
Clear skyCloud
Wind pattern
Wind can affect exposed beach comfort.
17 mphJanuary Windy
Sea temperature
42°FJanuary sea temp
More detailIncludes daypart comfort
Typical January day
January late afternoons are around 37°F, and early evening stays near 37°F.
Avg temp Typical range
Morning34°F
Rain17%
Cloud61%
Humid airLow
Sun intensityLow
Midday35°F
Rain17%
Cloud62%
Humid airLow
Sun intensityModerate
Late afternoon37°F
Rain17%
Cloud61%
Humid airLow
Sun intensityMinimal
Early evening36°F
Rain16%
Cloud60%
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 | 4.3 | 11 | 6.5 | 71 | 42 |
| Feb | 40 | 32 | 3.9 | 10 | 7.4 | 71 | 39 |
| Mar | 43 | 36 | 4.8 | 10 | 8.5 | 73 | 39 |
| Apr | 49 | 44 | 4.3 | 11 | 9.5 | 78 | 43 |
| May | 57 | 52 | 4.0 | 11 | 10.5 | 83 | 51 |
| Jun | 66 | 62 | 3.4 | 9 | 11.5 | 85 | 61 |
| Jul | 73 | 70 | 3.1 | 8 | 12.0 | 84 | 69 |
| Aug | 74 | 70 | 3.6 | 9 | 11.2 | 82 | 71 |
| Sep | 70 | 65 | 4.1 | 9 | 9.5 | 78 | 67 |
| Oct | 62 | 56 | 5.1 | 10 | 8.2 | 73 | 61 |
| Nov | 53 | 47 | 3.8 | 9 | 6.6 | 71 | 54 |
| Dec | 46 | 38 | 5.1 | 11 | 5.8 | 71 | 47 |
Similar climates
Similar
Similar travel styleCape MayUnited StatesSimilar travel styleEast HamptonUnited StatesSimilar travel styleMartha's VineyardUnited StatesSimilar travel styleMontaukUnited States
Want a side-by-side climate view? Compare Greenport / North Fork with Cape May.
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