January Weather in Haimen, China

Last updated: August 22, 2025

In Haimen, China, the average temperature in January hovers around 5°C (42°F), with extremes ranging from a chilly -8°C (17°F) to a pleasant 19°C (67°F). Expect 47 mm (1.9 in) of precipitation spread over about 7 days, contributing to an average humidity of 70%. Be prepared for a mix of cool and mild days!

January Temperature in Haimen

In January in Haimen, the average temperature is 5°C (42°F). The maximum can reach 19°C (67°F) and the minimum can be as low as -8°C (17°F). Be prepared for a mix of chilly and mild weather, making it essential to pack layers for your travels.

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

The chart illustrates January temperature patterns in Haimen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haimen, January typically has an average temperature of 5°C (42°F), with highs reaching up to 19°C (67°F) and lows dropping to around -8°C (17°F).

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

January Precipitation in Haimen

In Haimen in January, the total precipitation amount is 47 mm (1.9 in) recorded over a span of 7 days.

January Precipitation Trends in Haimen

The chart displays monthly precipitation patterns in Haimen, 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 Haimen, January typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 7 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 Haimen

In Haimen in January humidity is 70%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling and requiring you to bundle up while navigating the bustling streets or serene landscapes.

January Average Humidity in Haimen

This chart illustrates the average monthly humidity levels in Haimen, 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 Haimen is approximately 70%, 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 Haimen

In Haimen in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Haimen for better planning.

Maximum UV Index Levels in Haimen for January

The chart shows the monthly maximum UV Index (UVI) for Haimen 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 Haimen typically reaches 4, which falls under the moderate exposure category.

Data source: Haimen 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 Haimen Compares to Other Months

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

This table compares monthly weather conditions in Haimen, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	47 mm (1.9 inches)	70%	moderate
February Weather	6°C (43°F)	51 mm (2.0 inches)	73%	high
March Weather	11°C (52°F)	62 mm (2.5 inches)	81%	very high
April Weather	15°C (60°F)	70 mm (2.8 inches)	87%	very high
May Weather	21°C (70°F)	106 mm (4.2 inches)	87%	very high
June Weather	24°C (76°F)	128 mm (5.1 inches)	89%	extreme
July Weather	28°C (83°F)	246 mm (9.7 inches)	93%	extreme
August Weather	29°C (84°F)	173 mm (6.8 inches)	91%	extreme
September Weather	25°C (77°F)	158 mm (6.2 inches)	81%	very high
October Weather	19°C (66°F)	55 mm (2.1 inches)	80%	very high
November Weather	14°C (57°F)	49 mm (1.9 inches)	82%	high
December Weather	7°C (45°F)	43 mm (1.7 inches)	77%	moderate