January Weather in Grolloo, Netherlands

Last updated: August 27, 2025

The average temperature in Grolloo, Netherlands during January hovers around 4°C (39°F). Expect chilly nights with minimums dipping to -8°C (18°F), while daytime highs can reach up to 14°C (57°F). With an average precipitation of 60 mm (2.3 in) spread over 12 days, be prepared for some wet weather. Humidity levels are high, averaging 88%, making it feel even more brisk!

January Temperature in Grolloo

In January in Grolloo, the average temperature is 4°C (39°F), with maximums reaching up to 14°C (57°F) and minimums plunging as low as -8°C (18°F). Be prepared for a chilly adventure, and pack layers to stay comfortable during your travels!

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

The chart illustrates January temperature patterns in Grolloo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grolloo, January typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (57°F) and lows dropping to around -8°C (18°F).

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

January Precipitation in Grolloo

In Grolloo, in January, the precipitation amount is 60 mm (2.3 in) over a duration of 12 days.

January Precipitation Trends in Grolloo

The chart displays monthly precipitation patterns in Grolloo, 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 Grolloo, January typically receives around 60 mm (2.3 inches) of precipitation spread over approximately 12 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 Grolloo

In Grolloo in January, humidity is 88%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm.

January Average Humidity in Grolloo

This chart illustrates the average monthly humidity levels in Grolloo, 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 Grolloo is approximately 88%, 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 Grolloo

In Grolloo 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 Grolloo.

Maximum UV Index Levels in Grolloo for January

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

Data source: Grolloo 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 Grolloo Compares to Other Months

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

This table compares monthly weather conditions in Grolloo, 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)	60 mm (2.3 inches)	88%	low
February Weather	4°C (40°F)	63 mm (2.5 inches)	88%	low
March Weather	6°C (43°F)	71 mm (2.8 inches)	86%	moderate
April Weather	9°C (48°F)	44 mm (1.7 inches)	84%	moderate
May Weather	13°C (55°F)	65 mm (2.6 inches)	80%	high
June Weather	17°C (63°F)	80 mm (3.2 inches)	75%	very high
July Weather	18°C (64°F)	93 mm (3.7 inches)	75%	high
August Weather	18°C (65°F)	86 mm (3.4 inches)	75%	high
September Weather	15°C (58°F)	62 mm (2.4 inches)	83%	moderate
October Weather	12°C (53°F)	84 mm (3.3 inches)	86%	moderate
November Weather	7°C (45°F)	50 mm (2.0 inches)	87%	low
December Weather	5°C (41°F)	80 mm (3.1 inches)	86%	low