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September Weather in Greenlaw, United Kingdom

Last updated: August 27, 2025

In September, the average temperature in Greenlaw, United Kingdom hovers around 13°C (55°F). Expect a chilly minimum of 3°C (37°F), while the mercury can rise to a pleasant 26°C (80°F). Visitors should also be prepared for 62 mm (2.4 in) of precipitation spread over 14 days, complemented by a high average humidity of 88%.

September Temperature in Greenlaw

In September in Greenlaw, the average temperature is 13°C (55°F). Maximums can reach 26°C (80°F), while minimums can dip as low as 3°C (37°F). This pleasant temperature variation makes it an ideal time for travelers to explore and enjoy outdoor activities in Greenlaw.

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

The chart illustrates September temperature patterns in Greenlaw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenlaw, September typically has an average temperature of 13°C (55°F), with highs reaching up to 26°C (80°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec404143455156595955504441
Data source: Temperature data for Greenlaw 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 Greenlaw

In Greenlaw in September, the precipitation amount is 62 mm (2.4 in) over a span of 14 days.

September Precipitation Trends in Greenlaw

The chart displays monthly precipitation patterns in Greenlaw, 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 Greenlaw, September typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec527971325384789162927073
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Greenlaw

In Greenlaw 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 Greenlaw

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

In Greenlaw 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 Greenlaw.

Maximum UV Index Levels in Greenlaw for September

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

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

This table compares monthly weather conditions in Greenlaw, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)52 mm (2.0 inches)90%low
February Weather5°C (41°F)79 mm (3.1 inches)88%low
March Weather6°C (43°F)71 mm (2.8 inches)86%moderate
April Weather7°C (45°F)32 mm (1.3 inches)85%moderate
May Weather10°C (51°F)53 mm (2.1 inches)80%high
June Weather13°C (56°F)84 mm (3.3 inches)83%very high
July Weather15°C (60°F)78 mm (3.1 inches)82%very high
August Weather15°C (59°F)90 mm (3.6 inches)82%high
September Weather13°C (55°F)62 mm (2.4 inches)88%moderate
October Weather10°C (50°F)92 mm (3.6 inches)90%moderate
November Weather7°C (45°F)70 mm (2.7 inches)92%low
December Weather5°C (41°F)73 mm (2.9 inches)89%low

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