January Weather in Hai'an, China

Last updated: August 22, 2025

In January, the average temperature in Hai'an, China hovers around 4°C (39°F), with fluctuations that can bring the minimum down to a brisk -9°C (16°F) and the maximum up to a mild 17°C (62°F). During this time, expect 43 mm (1.7 in) of precipitation spread across 7 days, contributing to an average humidity of 67%.

January Temperature in Hai'an

In January in Hai'an, the average temperature is 4°C (39°F). Maximums can reach 17°C (62°F), while minimums can drop as low as -9°C (16°F). Be prepared for a blend of chilly and mild weather if you're planning to visit during this time.

January Weather in Hai'an: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hai'an, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hai'an, January typically has an average temperature of 4°C (39°F), with highs reaching up to 17°C (62°F) and lows dropping to around -9°C (16°F).

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

January Precipitation in Hai'an

In Hai'an in January, the total precipitation amount is 43 mm (1.7 in) spread over a period of 7 days.

January Precipitation Trends in Hai'an

The chart displays monthly precipitation patterns in Hai'an, 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 Hai'an, January typically receives around 43 mm (1.7 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 Hai'an

In Hai'an in January, humidity is 67%. With an average temperature of 4°C (39°F), this humidity feels like a brisk chill that penetrates your clothing, making outdoor activities more challenging and requiring layered clothing for comfort during your travels.

January Average Humidity in Hai'an

This chart illustrates the average monthly humidity levels in Hai'an, 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 Hai'an is approximately 67%, 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 Hai'an

In Hai'an 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 Hai'an for better planning.

Maximum UV Index Levels in Hai'an for January

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

Data source: Hai'an 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 Hai'an Compares to Other Months

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

This table compares monthly weather conditions in Hai'an, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	43 mm (1.7 inches)	67%	moderate
February Weather	5°C (42°F)	44 mm (1.7 inches)	69%	high
March Weather	11°C (51°F)	51 mm (2.0 inches)	79%	very high
April Weather	15°C (60°F)	64 mm (2.5 inches)	86%	very high
May Weather	21°C (70°F)	122 mm (4.8 inches)	87%	very high
June Weather	25°C (77°F)	137 mm (5.4 inches)	90%	very high
July Weather	28°C (82°F)	251 mm (9.9 inches)	95%	extreme
August Weather	28°C (83°F)	177 mm (7.0 inches)	92%	extreme
September Weather	24°C (76°F)	112 mm (4.4 inches)	79%	very high
October Weather	18°C (64°F)	54 mm (2.1 inches)	76%	very high
November Weather	13°C (55°F)	45 mm (1.8 inches)	77%	moderate
December Weather	6°C (43°F)	40 mm (1.6 inches)	73%	moderate