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September Weather in St. Georges, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in St. Georges, United Kingdom hovers around 15°C (60°F), with a minimum of 4°C (39°F) and a delightful maximum of 28°C (83°F). Expect about 65 mm (2.6 in) of precipitation spread over 10 days, contributing to an average humidity level of 79%. Perfect for those who enjoy a lush, vibrant atmosphere!

September Temperature in St. Georges

In September in St. Georges, the average temperature is 15°C (60°F). Maximums can reach 28°C (83°F), and minimums can be as low as 4°C (39°F). This pleasant climate makes St. Georges an ideal destination for travelers seeking a comfortable getaway.

September Weather in St. Georges: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in St. Georges, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In St. Georges, September typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (83°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec434446495561646359544846
Data source: Temperature data for St. Georges 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 St. Georges

In St. Georges in September, the precipitation amount is 65 mm (2.6 in) over a span of 10 days.

September Precipitation Trends in St. Georges

The chart displays monthly precipitation patterns in St. Georges, 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 St. Georges, September typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec59708050657368846511374101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in St. Georges

In St. Georges in September, humidity is 79%. With an average temperature of 15°C (60°F), this humidity feels like a warm, enveloping blanket that can make traveling feel muggy and a bit stifling, requiring frequent breaks to stay refreshed and hydrated.

September Average Humidity in St. Georges

This chart illustrates the average monthly humidity levels in St. Georges, 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 St. Georges 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 St. Georges

In St. Georges 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 St. Georges, you can refer to this Hourly UV Index in St. Georges.

Maximum UV Index Levels in St. Georges for September

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

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

This table compares monthly weather conditions in St. Georges, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)59 mm (2.3 inches)88%low
February Weather7°C (45°F)70 mm (2.8 inches)88%low
March Weather8°C (46°F)80 mm (3.1 inches)86%moderate
April Weather10°C (50°F)50 mm (2.0 inches)84%high
May Weather13°C (55°F)65 mm (2.6 inches)80%high
June Weather16°C (61°F)73 mm (2.9 inches)80%very high
July Weather18°C (64°F)68 mm (2.7 inches)70%very high
August Weather17°C (63°F)84 mm (3.3 inches)73%high
September Weather15°C (60°F)65 mm (2.6 inches)79%high
October Weather12°C (55°F)113 mm (4.5 inches)89%moderate
November Weather9°C (49°F)74 mm (2.9 inches)90%low
December Weather8°C (46°F)101 mm (4.0 inches)89%low

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