January Weather in Harbor, United States

Last updated: June 24, 2025

In January, the average temperature in Harbor, United States hovers around 9°C (49°F). Expect minimums dipping to 2°C (36°F), with highs reaching 17°C (63°F). This month also brings a notable precipitation amount of 301 mm (11.8 in) spread across 16 days, contributing to an average humidity of 86%. Prepare for a chilly and damp atmosphere!

January Temperature in Harbor

In January in Harbor, the average temperature is 9°C (49°F). The maximum can reach 17°C (63°F), while the minimum can be as low as 2°C (36°F). This mild weather makes Harbor an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates January temperature patterns in Harbor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harbor, January typically has an average temperature of 9°C (49°F), with highs reaching up to 17°C (63°F) and lows dropping to around 2°C (36°F).

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

January Precipitation in Harbor

In Harbor in January, the precipitation amount is 301 mm (11.8 in) over the course of 16 days.

January Precipitation Trends in Harbor

The chart displays monthly precipitation patterns in Harbor, 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 Harbor, January typically receives around 301 mm (11.8 inches) of precipitation spread over approximately 16 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 Harbor

In Harbor in January, humidity is 86%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill in the air, making travel uncomfortable as the moisture clings to your skin and thickens the atmosphere, creating a sense of heaviness that can tire you quickly.

January Average Humidity in Harbor

This chart illustrates the average monthly humidity levels in Harbor, 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 Harbor is approximately 86%, 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 Harbor

In Harbor 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 Harbor, you can check the information here.

Maximum UV Index Levels in Harbor for January

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

Data source: Harbor 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 Harbor Compares to Other Months

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

This table compares monthly weather conditions in Harbor, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	301 mm (11.8 inches)	86%	moderate
February Weather	9°C (48°F)	270 mm (10.6 inches)	85%	moderate
March Weather	9°C (48°F)	207 mm (8.1 inches)	85%	high
April Weather	11°C (52°F)	165 mm (6.5 inches)	82%	very high
May Weather	13°C (55°F)	68 mm (2.7 inches)	81%	very high
June Weather	16°C (61°F)	36 mm (1.4 inches)	79%	very high
July Weather	18°C (65°F)	1 mm (0.0 inches)	70%	very high
August Weather	19°C (66°F)	4 mm (0.2 inches)	60%	very high
September Weather	17°C (63°F)	59 mm (2.3 inches)	62%	very high
October Weather	14°C (58°F)	93 mm (3.7 inches)	72%	high
November Weather	11°C (53°F)	213 mm (8.4 inches)	87%	moderate
December Weather	9°C (49°F)	237 mm (9.3 inches)	86%	low