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September Weather in Saint Clears, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Saint Clears, United Kingdom hovers around 15°C (59°F). Expect a minimum of 6°C (43°F) and a comfortable maximum of 25°C (77°F). During this month, precipitation reaches about 106 mm (4.2 in) across 15 days, with an average humidity of 79%, creating a distinctly refreshing atmosphere.

September Temperature in Saint Clears

In September in Saint Clears, the average temperature is 15°C (59°F). The maximum can reach 25°C (77°F) and the minimum can be as low as 6°C (43°F). This mild weather makes Saint Clears an ideal destination for travelers looking to enjoy outdoor activities without extreme temperatures.

September Weather in Saint Clears: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint Clears, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Clears, September typically has an average temperature of 15°C (59°F), with highs reaching up to 25°C (77°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec444445495359626158544946
Data source: Temperature data for Saint Clears 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.

September Precipitation in Saint Clears

In Saint Clears in September, the total precipitation amount is 106 mm (4.2 in) over the course of 15 days.

September Precipitation Trends in Saint Clears

The chart displays monthly precipitation patterns in Saint Clears, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Saint Clears, September typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec8912010659839684126106152143165
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint Clears

In Saint Clears in September humidity is 79%. With an average temperature of 15°C (59°F), this humidity feels like a muggy embrace that clings to your skin, making outdoor activities somewhat uncomfortable. Travelers may find themselves frequently seeking shelter or refreshing drinks to combat the warm, damp air, as the moisture in the atmosphere feels particularly heavy, especially during longer excursions.

September Average Humidity in Saint Clears

This chart illustrates the average monthly humidity levels in Saint Clears, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Saint Clears is approximately 79%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint Clears

In Saint Clears in September, 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 Saint Clears, you can refer to this Hourly UV Index in Saint Clears.

Maximum UV Index Levels in Saint Clears for September

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

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

This table compares monthly weather conditions in Saint Clears, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)89 mm (3.5 inches)88%low
February Weather7°C (45°F)120 mm (4.7 inches)88%low
March Weather7°C (46°F)106 mm (4.2 inches)86%moderate
April Weather9°C (49°F)59 mm (2.3 inches)84%high
May Weather12°C (53°F)83 mm (3.3 inches)80%high
June Weather15°C (59°F)96 mm (3.8 inches)80%very high
July Weather17°C (62°F)84 mm (3.3 inches)70%very high
August Weather16°C (61°F)126 mm (5.0 inches)73%high
September Weather15°C (59°F)106 mm (4.2 inches)79%high
October Weather12°C (54°F)152 mm (6.0 inches)89%moderate
November Weather9°C (49°F)143 mm (5.6 inches)90%low
December Weather8°C (47°F)165 mm (6.5 inches)89%low

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