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September Weather in Kilwinning, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Kilwinning, United Kingdom hovers around 13°C (56°F), with a minimum dipping to 0°C (32°F) and a maximum reaching up to 26°C (78°F). Be prepared for 107 mm (4.2 in) of precipitation spread across approximately 16 days, and expect an average humidity level of 88%.

September Temperature in Kilwinning

In September in Kilwinning, the average temperature is 13°C (56°F). The maximum can reach 26°C (78°F), and the minimum can be as low as 0°C (32°F). Be prepared for a mix of mild days and cool evenings when traveling during this time.

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

The chart illustrates September temperature patterns in Kilwinning, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kilwinning, September typically has an average temperature of 13°C (56°F), with highs reaching up to 26°C (78°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec424243465257595955514643
Data source: Temperature data for Kilwinning 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 Kilwinning

In Kilwinning in September, the precipitation amount reaches 107 mm (4.2 in) during a span of 16 days.

September Precipitation Trends in Kilwinning

The chart displays monthly precipitation patterns in Kilwinning, 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 Kilwinning, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec1001481144767109100141107166133140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kilwinning

In Kilwinning in September, humidity is 88%. With an average temperature of 13°C (56°F), this humidity feels like a thick, warm blanket wrapping around you, making outdoor adventures sticky and challenging.

September Average Humidity in Kilwinning

This chart illustrates the average monthly humidity levels in Kilwinning, 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 Kilwinning 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 Kilwinning

In Kilwinning 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 Kilwinning.

Maximum UV Index Levels in Kilwinning for September

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

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

This table compares monthly weather conditions in Kilwinning, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)100 mm (3.9 inches)90%low
February Weather6°C (42°F)148 mm (5.8 inches)88%low
March Weather6°C (44°F)114 mm (4.5 inches)86%moderate
April Weather8°C (47°F)47 mm (1.9 inches)85%moderate
May Weather11°C (52°F)67 mm (2.6 inches)80%high
June Weather14°C (57°F)109 mm (4.3 inches)83%very high
July Weather15°C (60°F)100 mm (3.9 inches)82%very high
August Weather15°C (59°F)141 mm (5.6 inches)82%high
September Weather13°C (56°F)107 mm (4.2 inches)88%moderate
October Weather10°C (51°F)166 mm (6.5 inches)90%moderate
November Weather8°C (46°F)132 mm (5.2 inches)92%low
December Weather6°C (43°F)140 mm (5.5 inches)89%low

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