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April Weather in Ystradgynlais, United Kingdom

Last updated: August 27, 2025

In April, the average temperature in Ystradgynlais, United Kingdom hovers around 9°C (48°F). Expect a range that dips to a chilly -4°C (26°F) at its lowest and can reach up to a pleasant 22°C (71°F) at its highest. During this time, you'll likely encounter 68 mm (2.7 in) of precipitation spread over 11 days, with an average humidity level of 84%.

April Temperature in Ystradgynlais

In April in Ystradgynlais, the average temperature is 9°C (48°F), with maximums reaching 22°C (71°F) and minimums dipping as low as -4°C (26°F). This variation makes it essential for travelers to pack layers for comfort during their stay.

April Weather in Ystradgynlais: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Ystradgynlais, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ystradgynlais, April typically has an average temperature of 9°C (48°F), with highs reaching up to 22°C (71°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec404243475258616056514543
Data source: Temperature data for Ystradgynlais 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.

April Precipitation in Ystradgynlais

In Ystradgynlais in April, the total precipitation amount is 68 mm (2.7 in) spread over a duration of 11 days.

April Precipitation Trends in Ystradgynlais

The chart displays monthly precipitation patterns in Ystradgynlais, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Ystradgynlais, April typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10015312968107103107139110168135170
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ystradgynlais

In Ystradgynlais in April, humidity is 84%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that envelops you, making it essential to dress in layers and stay active, as the moisture in the air can quickly lead to discomfort while traveling.

April Average Humidity in Ystradgynlais

This chart illustrates the average monthly humidity levels in Ystradgynlais, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Ystradgynlais is approximately 84%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Ystradgynlais

In Ystradgynlais in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Ystradgynlais, you can refer to this Hourly UV Index in Ystradgynlais.

Maximum UV Index Levels in Ystradgynlais for April

The chart shows the monthly maximum UV Index (UVI) for Ystradgynlais in April, 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 April, the maximum UV index in Ystradgynlais typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Ystradgynlais April 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 April Weather in Ystradgynlais Compares to Other Months

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

This table compares monthly weather conditions in Ystradgynlais, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)100 mm (4.0 inches)88%low
February Weather5°C (42°F)153 mm (6.0 inches)88%low
March Weather6°C (44°F)129 mm (5.1 inches)86%moderate
April Weather9°C (48°F)68 mm (2.7 inches)84%high
May Weather11°C (53°F)107 mm (4.2 inches)80%high
June Weather15°C (58°F)103 mm (4.1 inches)80%very high
July Weather16°C (61°F)107 mm (4.2 inches)70%very high
August Weather15°C (60°F)139 mm (5.5 inches)73%high
September Weather13°C (56°F)110 mm (4.3 inches)79%high
October Weather11°C (51°F)168 mm (6.6 inches)89%moderate
November Weather7°C (46°F)135 mm (5.3 inches)90%low
December Weather6°C (43°F)170 mm (6.7 inches)89%low

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