January Weather in Millstreet, Ireland

Last updated: August 23, 2025

In January, the average temperature in Millstreet, Ireland hovers around 5°C (42°F), with minimum lows dropping to -6°C (22°F) and highs peaking at 13°C (55°F). Be prepared for 69 mm (2.7 in) of precipitation over approximately 12 days, and expect a fairly humid environment with an average humidity of 83%.

January Temperature in Millstreet

In January in Millstreet, the average temperature is 5°C (42°F). Maximum temperatures can reach 13°C (55°F), while minimums can drop to -6°C (22°F). Be sure to pack layers and warm clothing for your trip, as the weather can be quite variable.

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

The chart illustrates January temperature patterns in Millstreet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millstreet, January typically has an average temperature of 5°C (42°F), with highs reaching up to 13°C (55°F) and lows dropping to around -6°C (22°F).

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

January Precipitation in Millstreet

In Millstreet in January, the precipitation amount is 69 mm (2.7 in) over the span of 12 days.

January Precipitation Trends in Millstreet

The chart displays monthly precipitation patterns in Millstreet, 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 Millstreet, January typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 12 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 Millstreet

In Millstreet in January, humidity is 83%. With an average temperature of 5°C (42°F), this humidity feels like a heavy blanket wrapping around you, making even the simplest outdoor activities feel exhausting and uncomfortable for traveling.

January Average Humidity in Millstreet

This chart illustrates the average monthly humidity levels in Millstreet, 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 Millstreet is approximately 83%, 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 Millstreet

In Millstreet 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 Millstreet.

Maximum UV Index Levels in Millstreet for January

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

Data source: Millstreet 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 Millstreet Compares to Other Months

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

This table compares monthly weather conditions in Millstreet, 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)	69 mm (2.7 inches)	83%	low
February Weather	6°C (43°F)	121 mm (4.7 inches)	85%	low
March Weather	6°C (43°F)	100 mm (3.9 inches)	84%	moderate
April Weather	8°C (47°F)	82 mm (3.2 inches)	84%	high
May Weather	11°C (52°F)	85 mm (3.3 inches)	84%	high
June Weather	13°C (56°F)	71 mm (2.8 inches)	85%	very high
July Weather	15°C (60°F)	69 mm (2.7 inches)	85%	very high
August Weather	15°C (58°F)	105 mm (4.1 inches)	84%	high
September Weather	13°C (55°F)	79 mm (3.1 inches)	85%	moderate
October Weather	10°C (50°F)	107 mm (4.2 inches)	86%	moderate
November Weather	7°C (45°F)	87 mm (3.4 inches)	84%	low
December Weather	6°C (44°F)	114 mm (4.5 inches)	83%	low