January Weather in Harwich Port, United States

Last updated: June 24, 2025

In January, the average temperature in Harwich Port, United States hovers around 2°C (37°F). Expect chilly nights with minimums plummeting to -13°C (10°F), while daytime highs can reach a comfortable 12°C (54°F). Be prepared for 94 mm (3.7 in) of precipitation spread over 10 days, contributing to an average humidity of 84%.

January Temperature in Harwich Port

In January in Harwich Port, the average temperature is 2°C (37°F). Maximum temperatures can reach 12°C (54°F), while the minimum can dip as low as -13°C (10°F). Travelers should be prepared for chilly conditions and pack appropriately for the varying temperatures.

January Weather in Harwich Port: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Harwich Port, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harwich Port, January typically has an average temperature of 2°C (37°F), with highs reaching up to 12°C (54°F) and lows dropping to around -13°C (10°F).

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

January Precipitation in Harwich Port

In Harwich Port in January, the precipitation amount is 94 mm (3.7 in) over a duration of 10 days.

January Precipitation Trends in Harwich Port

The chart displays monthly precipitation patterns in Harwich Port, 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 Harwich Port, January typically receives around 94 mm (3.7 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 Harwich Port

In Harwich Port in January, humidity is 84%. With an average temperature of 2°C (37°F), this humidity feels like an uncomfortable chill that seeps into your bones, making outdoor activities less enjoyable and prompting the need for layered clothing to stay warm and dry.

January Average Humidity in Harwich Port

This chart illustrates the average monthly humidity levels in Harwich Port, 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 Harwich Port 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 Harwich Port

In Harwich Port 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 Harwich Port, you can check the information here.

Maximum UV Index Levels in Harwich Port for January

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

Data source: Harwich Port 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 Harwich Port Compares to Other Months

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

This table compares monthly weather conditions in Harwich Port, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	94 mm (3.7 inches)	84%	moderate
February Weather	2°C (37°F)	124 mm (4.9 inches)	84%	moderate
March Weather	3°C (38°F)	119 mm (4.7 inches)	82%	high
April Weather	7°C (45°F)	131 mm (5.1 inches)	79%	very high
May Weather	11°C (52°F)	121 mm (4.8 inches)	75%	very high
June Weather	16°C (61°F)	88 mm (3.5 inches)	78%	very high
July Weather	20°C (69°F)	77 mm (3.0 inches)	76%	very high
August Weather	21°C (71°F)	83 mm (3.3 inches)	76%	very high
September Weather	19°C (66°F)	116 mm (4.6 inches)	75%	very high
October Weather	15°C (59°F)	169 mm (6.7 inches)	75%	high
November Weather	9°C (49°F)	106 mm (4.2 inches)	80%	moderate
December Weather	5°C (41°F)	138 mm (5.4 inches)	80%	low