Last updated: August 27, 2025
In September, the average temperature in Holmbury St Mary, United Kingdom hovers around 15°C (59°F). Visitors can expect a minimum of 3°C (37°F) and a maximum of 28°C (83°F), providing a pleasant range for outdoor activities. However, be prepared for some rain, as precipitation averages 44 mm (1.7 in) over 8 days. With an average humidity of 82%, it's a good idea to pack both light clothing and a rain jacket!
In September in Holmbury St Mary, the average temperature is 15°C (59°F). The maximum can reach 28°C (83°F), and the minimum can be as low as 3°C (37°F). This makes it a pleasant time for travelers, with comfortable days and cool nights ideal for outdoor activities.
In Holmbury St Mary in September, the total precipitation amount is 44 mm (1.7 in) over a duration of 8 days.
In Holmbury St Mary in September, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.
In Holmbury St Mary 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 Holmbury St Mary, you can refer to this Hourly UV Index in Holmbury St Mary.
UV Risk Categories
Weather in Holmbury St Mary varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Holmbury St Mary, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 50 mm (2.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 53 mm (2.1 inches) | 89% | low |
| March Weather | 7°C (46°F) | 57 mm (2.2 inches) | 86% | moderate |
| April Weather | 10°C (49°F) | 35 mm (1.4 inches) | 85% | high |
| May Weather | 13°C (55°F) | 65 mm (2.6 inches) | 79% | high |
| June Weather | 16°C (62°F) | 77 mm (3.0 inches) | 80% | very high |
| July Weather | 18°C (65°F) | 67 mm (2.6 inches) | 71% | very high |
| August Weather | 17°C (64°F) | 70 mm (2.8 inches) | 76% | high |
| September Weather | 15°C (59°F) | 44 mm (1.7 inches) | 82% | high |
| October Weather | 12°C (54°F) | 88 mm (3.5 inches) | 90% | moderate |
| November Weather | 8°C (47°F) | 56 mm (2.2 inches) | 92% | low |
| December Weather | 6°C (44°F) | 85 mm (3.4 inches) | 92% | low |