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January Weather in Rhayader, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in Rhayader, United Kingdom hovers around 4°C (39°F), with extremes ranging from a chilly -8°C (19°F) to a mild 12°C (55°F). Expect about 79 mm (3.1 in) of precipitation spread over 12 days, and prepare for high humidity levels at an average of 89%. Whether you're bracing for the cold or enjoying the occasional warm spell, this month promises a unique atmosphere!

January Temperature in Rhayader

In January in Rhayader, the average temperature is a chilly 4°C (39°F), with maximums reaching up to 12°C (55°F) and minimums dropping as low as -8°C (19°F). Be prepared for brisk weather and pack accordingly if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Rhayader, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rhayader, January typically has an average temperature of 4°C (39°F), with highs reaching up to 12°C (55°F) and lows dropping to around -8°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec394042455157595854494441
Data source: Temperature data for Rhayader 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 Rhayader

In Rhayader in January, the precipitation amount is 79 mm (3.1 in) over a period of 12 days.

January Precipitation Trends in Rhayader

The chart displays monthly precipitation patterns in Rhayader, 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 Rhayader, January typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec791151156088948210685123104129
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Rhayader

In Rhayader in January humidity is 89%. With an average temperature of 4°C (39°F), this humidity feels like an uninviting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers of clothing to fend off the dampness.

January Average Humidity in Rhayader

This chart illustrates the average monthly humidity levels in Rhayader, 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 Rhayader is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Rhayader

In Rhayader 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 Rhayader.

Maximum UV Index Levels in Rhayader for January

The chart shows the monthly maximum UV Index (UVI) for Rhayader 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 Rhayader typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Rhayader 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 Rhayader Compares to Other Months

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

This table compares monthly weather conditions in Rhayader, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)79 mm (3.1 inches)89%low
February Weather4°C (40°F)115 mm (4.5 inches)88%low
March Weather5°C (42°F)115 mm (4.5 inches)86%moderate
April Weather7°C (46°F)60 mm (2.4 inches)84%high
May Weather10°C (51°F)88 mm (3.5 inches)79%high
June Weather14°C (57°F)94 mm (3.7 inches)81%very high
July Weather15°C (60°F)82 mm (3.2 inches)78%very high
August Weather14°C (58°F)106 mm (4.2 inches)79%high
September Weather12°C (55°F)85 mm (3.3 inches)85%high
October Weather10°C (50°F)123 mm (4.8 inches)90%moderate
November Weather6°C (44°F)104 mm (4.1 inches)91%low
December Weather5°C (41°F)129 mm (5.1 inches)89%low

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