Last updated: August 27, 2025
In September, the average temperature in Omagh, United Kingdom is a pleasant 13°C (55°F), with temperatures ranging from a cool 0°C (33°F) to a mild 24°C (75°F). However, be prepared for the possibility of rain, as the area sees about 77 mm (3.0 in) of precipitation over 16 days. With an average humidity of 88%, it's a good idea to pack accordingly for the moist conditions!
In September in Omagh, the average temperature is 13°C (55°F). The maximum can reach 24°C (75°F), while the minimum can drop as low as 0°C (33°F). It's a great time to explore Omagh, as you can enjoy mild days and cool nights.
In Omagh in September, the precipitation amount is 77 mm (3.0 in) during 16 days, indicating a moderately wet climate for that period.
In Omagh 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.
In Omagh 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 Omagh.
UV Risk Categories
Weather in Omagh varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Omagh, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 69 mm (2.7 inches) | 87% | low |
| February Weather | 5°C (42°F) | 108 mm (4.2 inches) | 86% | low |
| March Weather | 6°C (43°F) | 92 mm (3.6 inches) | 86% | moderate |
| April Weather | 8°C (47°F) | 54 mm (2.1 inches) | 85% | moderate |
| May Weather | 11°C (52°F) | 71 mm (2.8 inches) | 82% | high |
| June Weather | 14°C (57°F) | 93 mm (3.7 inches) | 84% | very high |
| July Weather | 15°C (59°F) | 87 mm (3.4 inches) | 86% | very high |
| August Weather | 15°C (58°F) | 127 mm (5.0 inches) | 86% | high |
| September Weather | 13°C (55°F) | 77 mm (3.0 inches) | 88% | moderate |
| October Weather | 10°C (50°F) | 94 mm (3.7 inches) | 89% | moderate |
| November Weather | 7°C (45°F) | 91 mm (3.6 inches) | 90% | low |
| December Weather | 6°C (43°F) | 98 mm (3.8 inches) | 86% | low |