January Weather in Herblay, France

Last updated: August 23, 2025

In January, the average temperature in Herblay, France hovers around 5°C (40°F). Expect chilly conditions, with minimum temperatures dipping to -7°C (19°F) and a maximum of 14°C (58°F). During this month, 56 mm (2.2 in) of precipitation typically falls over about 10 days, contributing to an average humidity level of a humid 91%. Be prepared for a cool and damp atmosphere!

January Temperature in Herblay

In January in Herblay, the average temperature is 5°C (40°F). The maximum can reach 14°C (58°F), and the minimum can be as low as -7°C (19°F). It's essential to pack warm clothing if you're planning to travel during this time, as temperatures can vary significantly.

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

The chart illustrates January temperature patterns in Herblay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Herblay, January typically has an average temperature of 5°C (40°F), with highs reaching up to 14°C (58°F) and lows dropping to around -7°C (19°F).

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

January Precipitation in Herblay

In Herblay in January, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.

January Precipitation Trends in Herblay

The chart displays monthly precipitation patterns in Herblay, 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 Herblay, January typically receives around 56 mm (2.2 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 Herblay

In Herblay in January humidity is 91%. With an average temperature of 5°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and necessitating warm, layered clothing to stay comfortable while exploring.

January Average Humidity in Herblay

This chart illustrates the average monthly humidity levels in Herblay, 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 Herblay is approximately 91%, 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 Herblay

In Herblay in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Herblay, you can visit Hourly UV Index in Herblay.

Maximum UV Index Levels in Herblay for January

The chart shows the monthly maximum UV Index (UVI) for Herblay 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 Herblay typically reaches 2, which falls under the low exposure category.

Data source: Herblay 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 Herblay Compares to Other Months

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

This table compares monthly weather conditions in Herblay, 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 (40°F)	56 mm (2.2 inches)	91%	low
February Weather	6°C (43°F)	69 mm (2.7 inches)	89%	moderate
March Weather	8°C (47°F)	75 mm (3.0 inches)	85%	moderate
April Weather	11°C (52°F)	34 mm (1.3 inches)	84%	high
May Weather	14°C (58°F)	70 mm (2.7 inches)	82%	very high
June Weather	19°C (66°F)	74 mm (2.9 inches)	80%	very high
July Weather	20°C (69°F)	49 mm (1.9 inches)	73%	very high
August Weather	20°C (68°F)	58 mm (2.3 inches)	68%	very high
September Weather	16°C (62°F)	40 mm (1.6 inches)	76%	high
October Weather	13°C (55°F)	78 mm (3.1 inches)	88%	moderate
November Weather	8°C (46°F)	66 mm (2.6 inches)	92%	low
December Weather	6°C (43°F)	102 mm (4.0 inches)	93%	low