Last updated: August 27, 2025
In September, the average temperature in Ashton-under-Lyne, United Kingdom is a mild 13°C (56°F), with daily values ranging from a cool 2°C (36°F) to a warm 27°C (80°F). Expect some wet weather, as 91 mm (3.6 in) of precipitation is likely over 14 days, contributing to an average humidity of 85%.
In September in Ashton-under-Lyne, the average temperature is 13°C (56°F). The maximum can reach 27°C (80°F) and the minimum can be as low as 2°C (36°F). It's a mild time of year, making it perfect for exploring outdoor attractions and enjoying local festivities.
In Ashton-under-Lyne in September, the precipitation amount is 91 mm (3.6 in) over a span of 14 days.
In Ashton-under-Lyne in September humidity is 85%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that wraps around you, making outdoor activities feel heavier and less enjoyable, as layers of clothing cling to the skin and breath becomes visible in the moist air.
In Ashton-under-Lyne 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 Ashton-under-Lyne.
UV Risk Categories
Weather in Ashton-under-Lyne varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ashton-under-Lyne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 74 mm (2.9 inches) | 90% | low |
| February Weather | 5°C (41°F) | 99 mm (3.9 inches) | 88% | low |
| March Weather | 6°C (43°F) | 100 mm (4.0 inches) | 86% | moderate |
| April Weather | 8°C (46°F) | 48 mm (1.9 inches) | 84% | moderate |
| May Weather | 11°C (52°F) | 68 mm (2.7 inches) | 80% | high |
| June Weather | 14°C (58°F) | 95 mm (3.7 inches) | 81% | very high |
| July Weather | 16°C (61°F) | 103 mm (4.1 inches) | 76% | very high |
| August Weather | 15°C (60°F) | 108 mm (4.2 inches) | 77% | high |
| September Weather | 13°C (56°F) | 91 mm (3.6 inches) | 85% | moderate |
| October Weather | 10°C (50°F) | 112 mm (4.4 inches) | 90% | moderate |
| November Weather | 7°C (44°F) | 85 mm (3.4 inches) | 92% | low |
| December Weather | 5°C (41°F) | 105 mm (4.1 inches) | 90% | low |