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September Weather in Caol, United Kingdom

Last updated: August 27, 2025

In Caol, United Kingdom, the average temperature in September hovers around 11°C (52°F). Expect a chilly dip to a minimum of -2°C (29°F), while the mercury can rise to a pleasant 23°C (73°F). Prepare for 176 mm (6.9 in) of precipitation spread over 19 days, contributing to an average humidity of 89%.

September Temperature in Caol

In September in Caol, the average temperature is 11°C (52°F). The maximum can reach 23°C (73°F), while the minimum can dip as low as -2°C (29°F). Be prepared for a range of temperatures when traveling during this month.

September Weather in Caol: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Caol, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caol, September typically has an average temperature of 11°C (52°F), with highs reaching up to 23°C (73°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec373739434854575552464138
Data source: Temperature data for Caol 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 Caol

In Caol in September, the precipitation amount is 176 mm (6.9 in) occurring over a period of 19 days.

September Precipitation Trends in Caol

The chart displays monthly precipitation patterns in Caol, 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 Caol, September typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1582101887499144128168176235171181
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Caol

In Caol in September humidity is 89%. With an average temperature of 11°C (52°F), this humidity feels like a cool mist clinging to your skin, making outdoor activities feel damp and chilly, so it's essential to dress in layers and be prepared for a brisk experience while traveling.

September Average Humidity in Caol

This chart illustrates the average monthly humidity levels in Caol, 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 Caol is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%85%84%82%84%88%88%89%90%90%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caol

In Caol in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Caol.

Maximum UV Index Levels in Caol for September

The chart shows the monthly maximum UV Index (UVI) for Caol 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 Caol typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568865311
Data source: Caol 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 Caol Compares to Other Months

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

This table compares monthly weather conditions in Caol, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)158 mm (6.2 inches)86%low
February Weather3°C (37°F)210 mm (8.3 inches)85%low
March Weather4°C (40°F)188 mm (7.4 inches)85%moderate
April Weather6°C (43°F)74 mm (2.9 inches)84%moderate
May Weather9°C (49°F)99 mm (3.9 inches)82%high
June Weather12°C (54°F)144 mm (5.7 inches)84%very high
July Weather14°C (57°F)128 mm (5.0 inches)87%very high
August Weather13°C (56°F)168 mm (6.6 inches)88%high
September Weather11°C (52°F)176 mm (6.9 inches)89%moderate
October Weather8°C (47°F)235 mm (9.3 inches)89%moderate
November Weather5°C (41°F)171 mm (6.7 inches)90%low
December Weather3°C (38°F)181 mm (7.1 inches)86%low

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