Last updated: August 27, 2025
In Long Ashton, United Kingdom, the average temperature in September is a comfortable 15°C (59°F), with minimums dipping to 3°C (37°F) and maximums soaring to 29°C (85°F). Expect about 56 mm (2.2 in) of precipitation over 9 days, and enjoy the balmy air with an average humidity of 79%.
In September in Long Ashton, the average temperature is 15°C (59°F). Maximums can reach 29°C (85°F), and minimums can be as low as 3°C (37°F). This makes it a great time for travelers to enjoy mild weather while exploring all that Long Ashton has to offer.
In Long Ashton in September, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.
In Long Ashton in September humidity is 79%. With an average temperature of 15°C (59°F), this humidity feels like a muggy embrace that clings to your skin, making outdoor activities somewhat uncomfortable. Travelers may find themselves frequently seeking shelter or refreshing drinks to combat the warm, damp air, as the moisture in the atmosphere feels particularly heavy, especially during longer excursions.
In Long Ashton 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 Long Ashton, you can refer to this Hourly UV Index in Long Ashton.
UV Risk Categories
Weather in Long Ashton varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Long Ashton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 58 mm (2.3 inches) | 88% | low |
| February Weather | 6°C (44°F) | 73 mm (2.9 inches) | 88% | low |
| March Weather | 7°C (46°F) | 77 mm (3.0 inches) | 86% | moderate |
| April Weather | 10°C (49°F) | 53 mm (2.1 inches) | 84% | moderate |
| May Weather | 13°C (55°F) | 71 mm (2.8 inches) | 80% | high |
| June Weather | 16°C (61°F) | 75 mm (3.0 inches) | 80% | very high |
| July Weather | 18°C (64°F) | 67 mm (2.7 inches) | 70% | very high |
| August Weather | 17°C (62°F) | 79 mm (3.1 inches) | 73% | high |
| September Weather | 15°C (59°F) | 56 mm (2.2 inches) | 79% | high |
| October Weather | 12°C (53°F) | 105 mm (4.1 inches) | 89% | moderate |
| November Weather | 8°C (47°F) | 70 mm (2.8 inches) | 90% | low |
| December Weather | 7°C (44°F) | 97 mm (3.8 inches) | 89% | low |