January Weather in Westport, United States

Last updated: June 24, 2025

In Westport, United States, the average temperature in January hovers around 0°C (32°F). Expect a chill in the air, with minimums dipping to -22°C (-7°F) and maximums reaching a mild 19°C (66°F). During this period, precipitation totals about 86 mm (3.4 in) over 10 days, accompanied by a high average humidity of 87%. Prepare accordingly!

January Temperature in Westport

In January in Westport, the average temperature is 0°C (32°F), with maximums reaching 19°C (66°F) and minimums dropping as low as -22°C (-7°F). Travelers should be prepared for chilly conditions, but can also enjoy some milder days suitable for outdoor exploration.

January Weather in Westport: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Westport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westport, January typically has an average temperature of 0°C (32°F), with highs reaching up to 19°C (66°F) and lows dropping to around -22°C (-7°F).

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

January Precipitation in Westport

In Westport in January, the precipitation amount is 86 mm (3.4 in) over the course of 10 days.

January Precipitation Trends in Westport

The chart displays monthly precipitation patterns in Westport, 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 Westport, January typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 10 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 Westport

In Westport in January, humidity is 87%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that clings to your skin, making travel uncomfortable and cold, as each breath brings a heavy moisture that seeps into your clothes.

January Average Humidity in Westport

This chart illustrates the average monthly humidity levels in Westport, 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 Westport is approximately 87%, 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 Westport

In Westport 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 Westport, you can check the information here.

Maximum UV Index Levels in Westport for January

The chart shows the monthly maximum UV Index (UVI) for Westport 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 Westport typically reaches 3, which falls under the moderate exposure category.

Data source: Westport 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 Westport Compares to Other Months

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

This table compares monthly weather conditions in Westport, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	86 mm (3.4 inches)	87%	moderate
February Weather	2°C (36°F)	116 mm (4.6 inches)	85%	moderate
March Weather	7°C (44°F)	140 mm (5.5 inches)	86%	high
April Weather	12°C (53°F)	122 mm (4.8 inches)	84%	very high
May Weather	18°C (65°F)	131 mm (5.2 inches)	79%	very high
June Weather	23°C (73°F)	128 mm (5.0 inches)	82%	extreme
July Weather	25°C (77°F)	109 mm (4.3 inches)	79%	very high
August Weather	23°C (74°F)	93 mm (3.7 inches)	70%	very high
September Weather	21°C (70°F)	83 mm (3.3 inches)	69%	very high
October Weather	15°C (59°F)	99 mm (3.9 inches)	76%	high
November Weather	6°C (43°F)	104 mm (4.1 inches)	88%	moderate
December Weather	3°C (38°F)	106 mm (4.2 inches)	87%	moderate