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September Weather in Newton Stewart, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Newton Stewart, United Kingdom hovers around 13°C (55°F). Expect a minimum of 1°C (34°F) and a possible maximum of 24°C (76°F). With an average humidity of 88%, it's advisable to prepare for a damp experience. Precipitation during this month averages 107 mm (4.2 in) across 18 days, so don't forget your umbrella!

September Temperature in Newton Stewart

In September in Newton Stewart, the average temperature is 13°C (55°F). Maximums can reach 24°C (76°F), while minimums can drop as low as 1°C (34°F). This makes Newton Stewart a great destination for travelers looking to experience mild weather with a chance of cooler evenings.

September Weather in Newton Stewart: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Newton Stewart, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newton Stewart, September typically has an average temperature of 13°C (55°F), with highs reaching up to 24°C (76°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec414143465157595955504642
Data source: Temperature data for Newton Stewart 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 Newton Stewart

In Newton Stewart in September, the precipitation amount is 107 mm (4.2 in) over the course of 18 days.

September Precipitation Trends in Newton Stewart

The chart displays monthly precipitation patterns in Newton Stewart, 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 Newton Stewart, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec941541095169106107134107156141134
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Newton Stewart

In Newton Stewart in September humidity is 88%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while exploring, as the moisture in the air can lead to a rather uncomfortable experience for traveling.

September Average Humidity in Newton Stewart

This chart illustrates the average monthly humidity levels in Newton Stewart, 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 Newton Stewart is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%85%81%83%82%82%88%90%92%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Newton Stewart

In Newton Stewart 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 Newton Stewart.

Maximum UV Index Levels in Newton Stewart for September

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

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

This table compares monthly weather conditions in Newton Stewart, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)94 mm (3.7 inches)90%low
February Weather5°C (42°F)154 mm (6.1 inches)88%low
March Weather6°C (43°F)109 mm (4.3 inches)86%moderate
April Weather8°C (46°F)51 mm (2.0 inches)85%moderate
May Weather11°C (52°F)69 mm (2.7 inches)80%high
June Weather14°C (57°F)106 mm (4.2 inches)83%very high
July Weather15°C (59°F)107 mm (4.2 inches)82%very high
August Weather15°C (59°F)134 mm (5.3 inches)82%high
September Weather13°C (55°F)107 mm (4.2 inches)88%moderate
October Weather10°C (51°F)155 mm (6.1 inches)90%moderate
November Weather8°C (46°F)141 mm (5.5 inches)92%low
December Weather6°C (43°F)134 mm (5.3 inches)89%low

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