January Weather in Onchan, Isle of Man

Last updated: August 23, 2025

In January, the average temperature in Onchan, Isle of Man hovers around 7°C (46°F), with lows dipping to 3°C (37°F) and highs peaking at 13°C (55°F). Expect precipitation totaling 82 mm (3.2 in) over about 13 days of the month, contributing to an average humidity level of an impressive 90%. Stay prepared for a chill and damp atmosphere!

January Temperature in Onchan

In January in Onchan, the average temperature is 7°C (46°F). Maximums can reach 13°C (55°F) and minimums can be as low as 3°C (37°F). It's advisable to dress in layers to stay comfortable while exploring the area.

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

The chart illustrates January temperature patterns in Onchan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onchan, January typically has an average temperature of 7°C (46°F), with highs reaching up to 13°C (55°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec454545465055585958545047
Data source: Temperature data for Onchan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Onchan

In Onchan in January, the total precipitation amount is 82 mm (3.2 in), occurring over the course of 13 days.

January Precipitation Trends in Onchan

The chart displays monthly precipitation patterns in Onchan, 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 Onchan, January typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec821119137497482101101145141141
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Onchan

In Onchan in January humidity is 90%. With an average temperature of 7°C (46°F), this humidity feels like a heavy blanket wrapping around you, making it feel much colder than it actually is, which can be quite uncomfortable for traveling.

January Average Humidity in Onchan

This chart illustrates the average monthly humidity levels in Onchan, 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 Onchan is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Onchan

In Onchan 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 Onchan.

Maximum UV Index Levels in Onchan for January

The chart shows the monthly maximum UV Index (UVI) for Onchan 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 Onchan typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568865321
Data source: Onchan 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 Onchan Compares to Other Months

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

This table compares monthly weather conditions in Onchan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)82 mm (3.2 inches)90%low
February Weather7°C (45°F)111 mm (4.4 inches)88%low
March Weather7°C (45°F)91 mm (3.6 inches)86%moderate
April Weather8°C (47°F)37 mm (1.5 inches)85%moderate
May Weather10°C (51°F)49 mm (1.9 inches)80%high
June Weather13°C (55°F)74 mm (2.9 inches)83%very high
July Weather14°C (58°F)82 mm (3.2 inches)82%very high
August Weather15°C (59°F)101 mm (4.0 inches)82%high
September Weather14°C (58°F)101 mm (4.0 inches)88%moderate
October Weather12°C (55°F)145 mm (5.7 inches)90%moderate
November Weather10°C (50°F)141 mm (5.6 inches)92%low
December Weather8°C (47°F)141 mm (5.6 inches)89%low

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