January Weather in Lucan, Ireland

Last updated: August 23, 2025

In Lucan, Ireland, the average temperature for January hovers around 5°C (42°F). Expect a minimum chill of -5°C (24°F) and a maximum warmth of 13°C (56°F). During this month, the region experiences 55 mm (2.2 in) of precipitation over approximately 10 days, contributing to an average humidity of 85%.

January Temperature in Lucan

In January in Lucan, the average temperature is 5°C (42°F). Maximums can reach 13°C (56°F) and minimums can be as low as -5°C (24°F). Travelers should be prepared for cool and potentially chilly conditions, making layered clothing essential for staying comfortable.

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

The chart illustrates January temperature patterns in Lucan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lucan, January typically has an average temperature of 5°C (42°F), with highs reaching up to 13°C (56°F) and lows dropping to around -5°C (24°F).

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

January Precipitation in Lucan

In Lucan in January, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

January Precipitation Trends in Lucan

The chart displays monthly precipitation patterns in Lucan, 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 Lucan, January typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 10 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 Lucan

In Lucan in January, humidity is 85%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and requiring extra layers to stay warm while exploring.

January Average Humidity in Lucan

This chart illustrates the average monthly humidity levels in Lucan, 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 Lucan is approximately 85%, 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 Lucan

In Lucan 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 Lucan.

Maximum UV Index Levels in Lucan for January

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

Data source: Lucan 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 Lucan Compares to Other Months

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

This table compares monthly weather conditions in Lucan, 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)	55 mm (2.2 inches)	85%	low
February Weather	6°C (43°F)	79 mm (3.1 inches)	86%	low
March Weather	7°C (44°F)	81 mm (3.2 inches)	86%	moderate
April Weather	8°C (47°F)	51 mm (2.0 inches)	85%	moderate
May Weather	11°C (53°F)	72 mm (2.8 inches)	83%	high
June Weather	14°C (58°F)	73 mm (2.9 inches)	85%	very high
July Weather	16°C (61°F)	77 mm (3.0 inches)	86%	very high
August Weather	15°C (60°F)	94 mm (3.7 inches)	85%	high
September Weather	13°C (56°F)	68 mm (2.7 inches)	86%	moderate
October Weather	10°C (51°F)	82 mm (3.2 inches)	87%	moderate
November Weather	7°C (46°F)	88 mm (3.5 inches)	86%	low
December Weather	6°C (43°F)	90 mm (3.5 inches)	84%	low