January Weather in Northampton, United Kingdom

Last updated: August 27, 2025

In Northampton, United Kingdom, the average temperature in January hovers around 4°C (40°F), with a chilly minimum of -5°C (24°F) and a mild maximum reaching 14°C (58°F). Expect 53 mm (2.1 in) of precipitation over about 10 days, alongside an average humidity level of 90%, making it a month characterized by cool, damp days.

January Temperature in Northampton

In January in Northampton, the average temperature is 4°C (40°F), with maximums reaching up to 14°C (58°F) and minimums dropping as low as -5°C (24°F). It's advisable to pack warm clothing and be prepared for chilly weather during your travels.

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

The chart illustrates January temperature patterns in Northampton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Northampton, January typically has an average temperature of 4°C (40°F), with highs reaching up to 14°C (58°F) and lows dropping to around -5°C (24°F).

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

January Precipitation in Northampton

In Northampton in January, the precipitation amount is 53 mm (2.1 in) spread over a duration of 10 days.

January Precipitation Trends in Northampton

The chart displays monthly precipitation patterns in Northampton, 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 Northampton, January typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 10 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 Northampton

In Northampton in January humidity is 90%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that penetrates your clothes, making even short excursions outside seem uncomfortable and uninviting.

January Average Humidity in Northampton

This chart illustrates the average monthly humidity levels in Northampton, 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 Northampton is approximately 90%, 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 Northampton

In Northampton 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 Northampton.

Maximum UV Index Levels in Northampton for January

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

Data source: Northampton 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 Northampton Compares to Other Months

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

This table compares monthly weather conditions in Northampton, 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 (40°F)	53 mm (2.1 inches)	90%	low
February Weather	6°C (42°F)	51 mm (2.0 inches)	88%	low
March Weather	7°C (45°F)	61 mm (2.4 inches)	86%	moderate
April Weather	9°C (48°F)	40 mm (1.6 inches)	84%	moderate
May Weather	12°C (54°F)	66 mm (2.6 inches)	80%	high
June Weather	16°C (61°F)	73 mm (2.9 inches)	81%	very high
July Weather	18°C (64°F)	70 mm (2.8 inches)	76%	very high
August Weather	17°C (63°F)	73 mm (2.9 inches)	77%	high
September Weather	14°C (58°F)	59 mm (2.3 inches)	85%	moderate
October Weather	11°C (52°F)	87 mm (3.4 inches)	90%	moderate
November Weather	7°C (46°F)	60 mm (2.3 inches)	92%	low
December Weather	6°C (43°F)	81 mm (3.2 inches)	90%	low