January Weather in Greenisland, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in Greenisland, United Kingdom hovers around 6°C (44°F). Expect temperatures to dip as low as 1°C (33°F) and rise to a maximum of 13°C (56°F). During this month, anticipate 78 mm (3.1 in) of precipitation over 14 days, with an average humidity level of 87%.

January Temperature in Greenisland

In January in Greenisland, the average temperature is 6°C (44°F), with maximums reaching 13°C (56°F) and minimums dropping as low as 1°C (33°F). This mild weather makes it a great time for travelers to explore the sights while enjoying cooler temperatures.

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

The chart illustrates January temperature patterns in Greenisland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenisland, January typically has an average temperature of 6°C (44°F), with highs reaching up to 13°C (56°F) and lows dropping to around 1°C (33°F).

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

January Precipitation in Greenisland

In Greenisland in January, the precipitation amount is 78 mm (3.1 in) over a period of 14 days.

January Precipitation Trends in Greenisland

The chart displays monthly precipitation patterns in Greenisland, 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 Greenisland, January typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 14 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 Greenisland

In Greenisland in January humidity is 87%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable without proper layers and preparation.

January Average Humidity in Greenisland

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

In Greenisland 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 Greenisland.

Maximum UV Index Levels in Greenisland for January

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

Data source: Greenisland 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 Greenisland Compares to Other Months

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

This table compares monthly weather conditions in Greenisland, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	78 mm (3.1 inches)	87%	low
February Weather	6°C (43°F)	111 mm (4.4 inches)	86%	low
March Weather	7°C (44°F)	94 mm (3.7 inches)	86%	moderate
April Weather	8°C (47°F)	45 mm (1.8 inches)	85%	moderate
May Weather	10°C (51°F)	69 mm (2.7 inches)	82%	high
June Weather	13°C (55°F)	93 mm (3.7 inches)	84%	very high
July Weather	14°C (58°F)	108 mm (4.2 inches)	86%	very high
August Weather	14°C (58°F)	129 mm (5.1 inches)	86%	high
September Weather	13°C (56°F)	95 mm (3.8 inches)	88%	moderate
October Weather	11°C (53°F)	125 mm (4.9 inches)	89%	moderate
November Weather	9°C (48°F)	128 mm (5.1 inches)	90%	low
December Weather	7°C (45°F)	118 mm (4.7 inches)	86%	low