January weather forecast and climate
East Hampton, NY

What is the coldest month in East Hampton?

The coldest month is January, with an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23°F (-5°C).

What is the temperature in January in East Hampton?

The average high-temperature, in January, is 35.6°F (2°C), while the average low-temperature is 23°F (-5°C).

How many days does it rain in January in East Hampton?

In East Hampton, during January, the rain falls for 11 days and regularly aggregates up to 2.8" (70mm) of precipitation.

What is the sea water temperature in January in East Hampton?

In East Hampton, in January, the average water temperature is 44.6°F (7°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Average temperature in January - East Hampton, NY
  • Average high temperature in January: 35.6°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in January: 23°F

Months with the highest average low temperature are July and August (62.6°F).
The coldest month (with the lowest average low temperature) is January (23°F).

Average rainfall in January - East Hampton, NY
  • Average rainfall in January: 2.8"

The wettest month (with the highest rainfall) is November (5.5").
The driest month (with the lowest rainfall) is August (0.8").

Average rainfall days in January - East Hampton, NY
  • Average rainfall days in January: 11 days

The month with the highest number of rainy days is December (12 days).
Months with the lowest number of rainy days are September and October (8 days).

Average sea temperature in January - East Hampton, NY
  • Average sea temperature in January: 45°F

The best month for swimming (with the highest average sea temperature) is August (72°F).
Coldest months (with the lowest average sea temperature) are February and March (41°F).

Average daylight in January / Average sunshine in January - East Hampton, NY
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 6h

Months with most sunshine are May, June and July (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 5).

Average UV index in January - East Hampton, NY
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 1).

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