Last updated: June 24, 2025
In Riesel, United States, the average temperature in September hovers around 27°C (81°F), with a minimum of 10°C (51°F) and a sizzling maximum reaching 39°C (103°F). Expect some rainy days, as precipitation averages 83 mm (3.3 in) over 9 days. The atmosphere is moderately humid, with an average humidity of 69%, adding to the overall tropical feel of the region.
In September in Riesel, the average temperature is 27°C (81°F). The maximum can reach 39°C (103°F), while the minimum can be as low as 10°C (51°F). Travelers should be prepared for hot days and cool nights, making it essential to pack layers for varying temperatures.
In Riesel in September, the precipitation amount is 83 mm (3.3 in) over the course of 9 days.
In Riesel in September, humidity is 69%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket wrapped around you, making it essential to stay hydrated and take frequent breaks during your travels.
In Riesel in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Riesel.
UV Risk Categories
Weather in Riesel varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Riesel, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 10°C (50°F) | 63 mm (2.5 inches) | 79% | moderate |
February Weather | 11°C (52°F) | 85 mm (3.4 inches) | 80% | high |
March Weather | 17°C (63°F) | 84 mm (3.3 inches) | 78% | very high |
April Weather | 20°C (67°F) | 99 mm (3.9 inches) | 79% | very high |
May Weather | 24°C (76°F) | 176 mm (6.9 inches) | 81% | extreme |
June Weather | 28°C (83°F) | 73 mm (2.9 inches) | 77% | extreme |
July Weather | 30°C (87°F) | 53 mm (2.1 inches) | 71% | extreme |
August Weather | 30°C (87°F) | 80 mm (3.2 inches) | 67% | extreme |
September Weather | 27°C (81°F) | 83 mm (3.3 inches) | 69% | very high |
October Weather | 21°C (70°F) | 121 mm (4.8 inches) | 73% | very high |
November Weather | 15°C (59°F) | 57 mm (2.2 inches) | 82% | high |
December Weather | 12°C (54°F) | 67 mm (2.6 inches) | 87% | moderate |