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January Weather in Portadown, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in Portadown, United Kingdom hovers around 5°C (42°F). Be prepared for a chilly range, with minimum temperatures dipping to -5°C (24°F) and maximums reaching 14°C (58°F). Expect 57 mm (2.2 in) of precipitation over the course of 10 days, coupled with a high average humidity of 87%.

January Temperature in Portadown

In January in Portadown, the average temperature is 5°C (42°F). Maximums can reach 14°C (58°F) while minimums can dip as low as -5°C (24°F). It's advisable to pack warm layers and be prepared for chilly conditions while exploring this destination.

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

The chart illustrates January temperature patterns in Portadown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portadown, January typically has an average temperature of 5°C (42°F), with highs reaching up to 14°C (58°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec424244475358605956514643
Data source: Temperature data for Portadown 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 Portadown

In Portadown in January, the precipitation amount is 57 mm (2.2 in) over a span of 10 days.

January Precipitation Trends in Portadown

The chart displays monthly precipitation patterns in Portadown, 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 Portadown, January typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec5787784666777611368798082
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Portadown

In Portadown in January humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.

January Average Humidity in Portadown

This chart illustrates the average monthly humidity levels in Portadown, 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 Portadown is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Portadown

In Portadown 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 Portadown.

Maximum UV Index Levels in Portadown for January

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

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

This table compares monthly weather conditions in Portadown, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)57 mm (2.2 inches)87%low
February Weather6°C (43°F)87 mm (3.4 inches)86%low
March Weather7°C (44°F)78 mm (3.1 inches)86%moderate
April Weather8°C (48°F)46 mm (1.8 inches)85%moderate
May Weather11°C (53°F)66 mm (2.6 inches)82%high
June Weather14°C (58°F)77 mm (3.0 inches)84%very high
July Weather16°C (61°F)76 mm (3.0 inches)86%very high
August Weather15°C (60°F)113 mm (4.4 inches)86%high
September Weather13°C (56°F)68 mm (2.7 inches)88%moderate
October Weather10°C (51°F)79 mm (3.1 inches)89%moderate
November Weather8°C (46°F)79 mm (3.1 inches)90%low
December Weather6°C (43°F)82 mm (3.2 inches)86%low

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