January Weather in Portswood, United Kingdom

Last updated: August 27, 2025

In Portswood, United Kingdom, the average temperature in January hovers around 5°C (42°F), with a chilly minimum of -3°C (27°F) and a comfortable maximum of 14°C (57°F). Expect 52 mm (2.1 in) of precipitation over 10 days, contributing to a notably high average humidity of 91%.

January Temperature in Portswood

In January in Portswood, the average temperature is 5°C (42°F), with maximums reaching up to 14°C (57°F) and minimums dropping as low as -3°C (27°F). Be sure to pack layered clothing to stay comfortable during your travels.

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

The chart illustrates January temperature patterns in Portswood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portswood, January typically has an average temperature of 5°C (42°F), with highs reaching up to 14°C (57°F) and lows dropping to around -3°C (27°F).

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

January Precipitation in Portswood

In Portswood in January, the total precipitation amount is 52 mm (2.1 in) distributed over a span of 10 days.

January Precipitation Trends in Portswood

The chart displays monthly precipitation patterns in Portswood, 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 Portswood, January typically receives around 52 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 Portswood

In Portswood in January humidity is 91%. With an average temperature of 5°C (42°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it challenging to enjoy outdoor activities and travel comfortably.

January Average Humidity in Portswood

This chart illustrates the average monthly humidity levels in Portswood, 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 Portswood 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 Portswood

In Portswood 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 Portswood.

Maximum UV Index Levels in Portswood for January

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

Data source: Portswood 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 Portswood Compares to Other Months

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

This table compares monthly weather conditions in Portswood, 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 (42°F)	52 mm (2.1 inches)	91%	low
February Weather	6°C (44°F)	60 mm (2.4 inches)	89%	low
March Weather	8°C (46°F)	67 mm (2.6 inches)	86%	moderate
April Weather	10°C (49°F)	39 mm (1.5 inches)	85%	high
May Weather	13°C (55°F)	70 mm (2.8 inches)	79%	high
June Weather	16°C (61°F)	83 mm (3.3 inches)	80%	very high
July Weather	18°C (65°F)	58 mm (2.3 inches)	71%	very high
August Weather	17°C (63°F)	71 mm (2.8 inches)	76%	high
September Weather	15°C (59°F)	47 mm (1.9 inches)	82%	high
October Weather	12°C (54°F)	103 mm (4.1 inches)	90%	moderate
November Weather	8°C (47°F)	65 mm (2.6 inches)	92%	low
December Weather	7°C (45°F)	93 mm (3.7 inches)	92%	low