nomadseason

January Weather in Roscommon, Ireland

Last updated: August 23, 2025

In January, the average temperature in Roscommon, Ireland sits at a brisk 6°C (42°F). Expect chilly lows of -4°C (25°F) and occasional highs reaching 14°C (57°F). Don't forget your umbrella, as precipitation totals around 72 mm (2.8 in) over 12 days this month. With an average humidity of 88%, it’s a good time to bundle up!

January Temperature in Roscommon

In January in Roscommon, the average temperature is 6°C (42°F), with maximums reaching 14°C (57°F) and minimums dropping as low as -4°C (25°F). It's advisable to pack layers to stay comfortable while exploring the area.

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

The chart illustrates January temperature patterns in Roscommon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roscommon, January typically has an average temperature of 6°C (42°F), with highs reaching up to 14°C (57°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344485357605956504643
Data source: Temperature data for Roscommon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Roscommon

In Roscommon in January, the total precipitation amount is 72 mm (2.8 in) over the course of 12 days.

January Precipitation Trends in Roscommon

The chart displays monthly precipitation patterns in Roscommon, 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 Roscommon, January typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7211796597790831328110897105
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Roscommon

In Roscommon in January, humidity is 88%. With an average temperature of 6°C (42°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as the cold air clings to your skin and saps your energy.

January Average Humidity in Roscommon

This chart illustrates the average monthly humidity levels in Roscommon, 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 Roscommon is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%87%86%83%83%85%85%88%91%92%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Roscommon

In Roscommon 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 Roscommon.

Maximum UV Index Levels in Roscommon for January

The chart shows the monthly maximum UV Index (UVI) for Roscommon 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 Roscommon typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Roscommon 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 Roscommon Compares to Other Months

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

This table compares monthly weather conditions in Roscommon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)72 mm (2.8 inches)88%low
February Weather6°C (43°F)117 mm (4.6 inches)88%low
March Weather7°C (44°F)96 mm (3.8 inches)87%moderate
April Weather9°C (48°F)59 mm (2.3 inches)86%moderate
May Weather12°C (53°F)77 mm (3.0 inches)83%high
June Weather14°C (57°F)90 mm (3.5 inches)83%very high
July Weather16°C (60°F)83 mm (3.3 inches)85%very high
August Weather15°C (59°F)132 mm (5.2 inches)85%high
September Weather13°C (56°F)80 mm (3.2 inches)88%moderate
October Weather10°C (51°F)108 mm (4.2 inches)91%moderate
November Weather8°C (46°F)97 mm (3.8 inches)92%low
December Weather6°C (44°F)105 mm (4.1 inches)89%low

Compare Roscommon's Climate with Cities Worldwide