Last updated: June 24, 2025
In September, the average temperature in Watford City, United States is a mild 15°C (59°F). However, be prepared for a range of temperatures, as it can dip to a chilly -3°C (26°F) and spike up to a scorching 36°C (96°F). Expect about 63 mm (2.5 in) of precipitation over 6 days, contributing to an average humidity of 68%—perfect for a refreshing atmosphere!
In September in Watford City, the average temperature is 15°C (59°F). Maximums can reach 36°C (96°F), while minimums can drop as low as -3°C (26°F). Be prepared for a wide range of temperatures when traveling during this month.
In Watford City in September, the precipitation amount is 63 mm (2.5 in) spread over a duration of 6 days.
In Watford City in September, humidity is 68%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls and sightseeing, but travelers should be prepared for occasional discomfort as the mugginess can dampen outdoor activities.
In Watford City in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Watford City.
UV Risk Categories
Weather in Watford City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Watford City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 12 mm (0.5 inches) | 83% | low |
| February Weather | -11°C (12°F) | 20 mm (0.8 inches) | 86% | moderate |
| March Weather | -2°C (30°F) | 24 mm (0.9 inches) | 77% | moderate |
| April Weather | 4°C (39°F) | 28 mm (1.1 inches) | 72% | very high |
| May Weather | 13°C (55°F) | 54 mm (2.1 inches) | 77% | very high |
| June Weather | 19°C (67°F) | 60 mm (2.4 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 65 mm (2.5 inches) | 78% | very high |
| August Weather | 20°C (69°F) | 51 mm (2.0 inches) | 74% | very high |
| September Weather | 15°C (59°F) | 63 mm (2.5 inches) | 68% | high |
| October Weather | 6°C (43°F) | 37 mm (1.4 inches) | 70% | moderate |
| November Weather | -1°C (30°F) | 18 mm (0.7 inches) | 80% | moderate |
| December Weather | -6°C (21°F) | 20 mm (0.8 inches) | 84% | low |