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January Weather in Renton, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in Renton, United Kingdom hovers around 4°C (40°F). Expect a chilly atmosphere, with minimum temperatures plummeting to -6°C (21°F) and highs reaching up to 13°C (56°F). Additionally, prepare for 99 mm (3.9 in) of precipitation spread over 13 days, contributing to an average humidity of 90%.

January Temperature in Renton

In January in Renton, the average temperature is 4°C (40°F). Maximum temperatures can reach 13°C (56°F), while the minimum can drop as low as -6°C (21°F). Be sure to pack warm clothing if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Renton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Renton, January typically has an average temperature of 4°C (40°F), with highs reaching up to 13°C (56°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec404042455156595854494441
Data source: Temperature data for Renton 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 Renton

In Renton in January, the precipitation amount is 99 mm (3.9 in) over the course of 13 days.

January Precipitation Trends in Renton

The chart displays monthly precipitation patterns in Renton, 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 Renton, January typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec991661275075118103145108166134139
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Renton

In Renton in January humidity is 90%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that penetrates your clothes, making even short excursions outside seem uncomfortable and uninviting.

January Average Humidity in Renton

This chart illustrates the average monthly humidity levels in Renton, 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 Renton 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 Renton

In Renton 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 Renton.

Maximum UV Index Levels in Renton for January

The chart shows the monthly maximum UV Index (UVI) for Renton 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 Renton typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568865311
Data source: Renton 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 Renton Compares to Other Months

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

This table compares monthly weather conditions in Renton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)99 mm (3.9 inches)90%low
February Weather5°C (41°F)166 mm (6.5 inches)88%low
March Weather6°C (42°F)127 mm (5.0 inches)86%moderate
April Weather7°C (46°F)50 mm (2.0 inches)85%moderate
May Weather11°C (51°F)75 mm (3.0 inches)80%high
June Weather14°C (57°F)118 mm (4.6 inches)83%very high
July Weather15°C (59°F)103 mm (4.1 inches)82%very high
August Weather14°C (58°F)145 mm (5.7 inches)82%high
September Weather12°C (55°F)108 mm (4.2 inches)88%moderate
October Weather10°C (50°F)166 mm (6.5 inches)90%moderate
November Weather7°C (44°F)134 mm (5.3 inches)92%low
December Weather5°C (41°F)139 mm (5.5 inches)89%low

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