January Weather in East Hampton, United States

Last updated: June 24, 2025

In January, the average temperature in East Hampton, United States hovers around 6°C (42°F). Expect a range where temperatures can dip as low as -12°C (11°F) and soar up to 21°C (71°F). Rainfall is prevalent, with 92 mm (3.6 in) of precipitation spread over 9 days, contributing to an average humidity level of 84%. Stay prepared for a mix of chilly and wet weather!

January Temperature in East Hampton

In January in East Hampton, the average temperature is 6°C (42°F). Maximum temperatures can reach 21°C (71°F), while minimums can drop to as low as -12°C (11°F). It's essential to pack layers for your travels, as the weather can vary significantly from day to night.

January Weather in East Hampton: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in East Hampton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In East Hampton, January typically has an average temperature of 6°C (42°F), with highs reaching up to 21°C (71°F) and lows dropping to around -12°C (11°F).

Data source: Temperature data for East Hampton generated using information from the Copernicus Climate Change Service.

January Precipitation in East Hampton

In East Hampton in January, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.

January Precipitation Trends in East Hampton

The chart displays monthly precipitation patterns in East Hampton, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In East Hampton, January typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in East Hampton

In East Hampton in January humidity is 84%. With an average temperature of 6°C (42°F), this humidity feels like an uncomfortable chill that seeps into your bones, making travel less enjoyable as you find yourself bundled up yet still damp, longing for warmth and comfort.

January Average Humidity in East Hampton

This chart illustrates the average monthly humidity levels in East Hampton, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in East Hampton is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in East Hampton

In East Hampton in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in East Hampton, you can check the information here.

Maximum UV Index Levels in East Hampton for January

The chart shows the monthly maximum UV Index (UVI) for East Hampton in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in East Hampton typically reaches 3, which falls under the moderate exposure category.

Data source: East Hampton January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in East Hampton Compares to Other Months

Weather in East Hampton varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in East Hampton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in East Hampton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	92 mm (3.6 inches)	84%	moderate
February Weather	8°C (46°F)	110 mm (4.3 inches)	83%	high
March Weather	10°C (50°F)	84 mm (3.3 inches)	82%	high
April Weather	15°C (59°F)	98 mm (3.9 inches)	81%	very high
May Weather	20°C (68°F)	111 mm (4.4 inches)	80%	very high
June Weather	24°C (76°F)	105 mm (4.1 inches)	82%	very high
July Weather	27°C (81°F)	126 mm (5.0 inches)	81%	extreme
August Weather	26°C (79°F)	138 mm (5.4 inches)	81%	very high
September Weather	24°C (75°F)	114 mm (4.5 inches)	78%	very high
October Weather	19°C (66°F)	89 mm (3.5 inches)	80%	very high
November Weather	12°C (53°F)	80 mm (3.2 inches)	84%	moderate
December Weather	8°C (47°F)	93 mm (3.7 inches)	84%	moderate