nomadseason

September Weather in Sudbury, United Kingdom

Last updated: August 27, 2025

In Sudbury, United Kingdom, the average temperature in September hovers around 15°C (59°F). Expect a minimum of 3°C (38°F) and a pleasant maximum of 26°C (80°F). During this time, the region experiences an average precipitation of 53 mm (2.1 in) spread over 11 days, with humidity levels reaching a notable 80%.

September Temperature in Sudbury

In September in Sudbury, the average temperature is 15°C (59°F). The maximum can reach 26°C (80°F), while the minimum can drop as low as 3°C (38°F). This moderate climate makes it a great time for traveling, offering comfortable conditions for outdoor exploration and activities.

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

The chart illustrates September temperature patterns in Sudbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sudbury, September typically has an average temperature of 15°C (59°F), with highs reaching up to 26°C (80°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec414345485461646459534643
Data source: Temperature data for Sudbury generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sudbury

In Sudbury in September, the precipitation amount is 53 mm (2.1 in) over the course of 11 days.

September Precipitation Trends in Sudbury

The chart displays monthly precipitation patterns in Sudbury, 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 Sudbury, September typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec505351286368637553814684
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Sudbury

In Sudbury in September, humidity is 80%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor activities slightly uncomfortable and necessitating frequent breaks to stay hydrated.

September Average Humidity in Sudbury

This chart illustrates the average monthly humidity levels in Sudbury, 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 Sudbury is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sudbury

In Sudbury 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 Sudbury.

Maximum UV Index Levels in Sudbury for September

The chart shows the monthly maximum UV Index (UVI) for Sudbury 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 Sudbury typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Sudbury 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 Sudbury Compares to Other Months

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

This table compares monthly weather conditions in Sudbury, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)50 mm (2.0 inches)91%low
February Weather6°C (43°F)53 mm (2.1 inches)89%low
March Weather7°C (45°F)51 mm (2.0 inches)86%moderate
April Weather9°C (49°F)28 mm (1.1 inches)85%moderate
May Weather12°C (55°F)63 mm (2.5 inches)82%high
June Weather16°C (61°F)68 mm (2.7 inches)81%very high
July Weather18°C (65°F)63 mm (2.5 inches)76%very high
August Weather18°C (64°F)75 mm (2.9 inches)73%high
September Weather15°C (59°F)53 mm (2.1 inches)80%moderate
October Weather12°C (54°F)81 mm (3.2 inches)89%moderate
November Weather8°C (47°F)46 mm (1.8 inches)92%low
December Weather6°C (43°F)84 mm (3.3 inches)92%low

Compare Sudbury's Climate with Cities Worldwide