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January Weather in Ystrad Mynach, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in Ystrad Mynach, United Kingdom hovers around 4°C (40°F). Expect chilly days, with minimum temperatures plunging to -7°C (21°F) and highs reaching up to 12°C (55°F). The weather is often damp, with an average precipitation of 73 mm (2.9 in) spread over 11 days and a notable average humidity of 88%. Be prepared for a mix of cold and wet conditions!

January Temperature in Ystrad Mynach

In January in Ystrad Mynach, the average temperature is 4°C (40°F). Maximums can reach 12°C (55°F) and minimums can be as low as -7°C (21°F). Travelers should be prepared for chilly weather and pack accordingly.

January Weather in Ystrad Mynach: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Ystrad Mynach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ystrad Mynach, January typically has an average temperature of 4°C (40°F), with highs reaching up to 12°C (55°F) and lows dropping to around -7°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec404143475258616056514542
Data source: Temperature data for Ystrad Mynach 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 Ystrad Mynach

In Ystrad Mynach in January, the precipitation amount is 73 mm (2.9 in), spread over 11 days.

January Precipitation Trends in Ystrad Mynach

The chart displays monthly precipitation patterns in Ystrad Mynach, 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 Ystrad Mynach, January typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec731121076491899110380132104129
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Ystrad Mynach

In Ystrad Mynach in January, humidity is 88%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and prompting you to seek cozy indoor activities instead.

January Average Humidity in Ystrad Mynach

This chart illustrates the average monthly humidity levels in Ystrad Mynach, 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 Ystrad Mynach is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Ystrad Mynach

In Ystrad Mynach 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 Ystrad Mynach.

Maximum UV Index Levels in Ystrad Mynach for January

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

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

This table compares monthly weather conditions in Ystrad Mynach, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)73 mm (2.9 inches)88%low
February Weather5°C (41°F)112 mm (4.4 inches)88%low
March Weather6°C (43°F)107 mm (4.2 inches)86%moderate
April Weather8°C (47°F)64 mm (2.5 inches)84%high
May Weather11°C (52°F)91 mm (3.6 inches)80%high
June Weather14°C (58°F)89 mm (3.5 inches)80%very high
July Weather16°C (62°F)91 mm (3.6 inches)70%very high
August Weather15°C (60°F)103 mm (4.1 inches)73%high
September Weather13°C (56°F)80 mm (3.1 inches)79%high
October Weather10°C (51°F)132 mm (5.2 inches)89%moderate
November Weather7°C (45°F)104 mm (4.1 inches)90%low
December Weather6°C (42°F)129 mm (5.1 inches)89%low

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