January Weather in Alphen aan den Rijn, Netherlands

Last updated: August 27, 2025

In January, the average temperature in Alphen aan den Rijn, Netherlands hovers around a brisk 5°C (41°F). Expect temperatures to range from a chilly -5°C (24°F) at the lowest to a mild 13°C (56°F) at the highest. With an average humidity of 87%, your surroundings will feel quite damp. Be prepared for some rain, as 63 mm (2.5 in) of precipitation is expected over 13 days during the month.

January Temperature in Alphen aan den Rijn

In January in Alphen aan den Rijn, the average temperature is 5°C (41°F). Maximums can reach 13°C (56°F), while minimums can drop as low as -5°C (24°F). Be prepared for chilly weather and pack accordingly when traveling during this time.

January Weather in Alphen aan den Rijn: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Alphen aan den Rijn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alphen aan den Rijn, January typically has an average temperature of 5°C (41°F), with highs reaching up to 13°C (56°F) and lows dropping to around -5°C (24°F).

Data source: Temperature data for Alphen aan den Rijn generated using information from the Copernicus Climate Change Service.

January Precipitation in Alphen aan den Rijn

In Alphen aan den Rijn in January, the precipitation amount is 63 mm (2.5 in) spread over 13 days.

January Precipitation Trends in Alphen aan den Rijn

The chart displays monthly precipitation patterns in Alphen aan den Rijn, 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 Alphen aan den Rijn, January typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Alphen aan den Rijn

In Alphen aan den Rijn in January humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

January Average Humidity in Alphen aan den Rijn

This chart illustrates the average monthly humidity levels in Alphen aan den Rijn, 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 Alphen aan den Rijn is approximately 87%, 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 Alphen aan den Rijn

In Alphen aan den Rijn in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Alphen aan den Rijn.

Maximum UV Index Levels in Alphen aan den Rijn for January

The chart shows the monthly maximum UV Index (UVI) for Alphen aan den Rijn 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 Alphen aan den Rijn typically reaches 1, which falls under the low exposure category.

Data source: Alphen aan den Rijn 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 Alphen aan den Rijn Compares to Other Months

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

This table compares monthly weather conditions in Alphen aan den Rijn, 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 (41°F)	63 mm (2.5 inches)	87%	low
February Weather	5°C (41°F)	72 mm (2.8 inches)	87%	low
March Weather	7°C (44°F)	72 mm (2.8 inches)	86%	moderate
April Weather	9°C (49°F)	45 mm (1.8 inches)	85%	moderate
May Weather	13°C (55°F)	63 mm (2.5 inches)	84%	high
June Weather	17°C (63°F)	77 mm (3.0 inches)	81%	very high
July Weather	18°C (65°F)	72 mm (2.8 inches)	80%	very high
August Weather	18°C (65°F)	93 mm (3.7 inches)	78%	high
September Weather	15°C (60°F)	91 mm (3.6 inches)	83%	moderate
October Weather	13°C (55°F)	110 mm (4.3 inches)	86%	moderate
November Weather	8°C (47°F)	64 mm (2.5 inches)	87%	low
December Weather	6°C (43°F)	103 mm (4.1 inches)	86%	low