Last updated: June 24, 2025
In Clarissa, United States, the average temperature in September hovers around 16°C (61°F), with a minimum of -1°C (31°F) and a peak reaching 31°C (88°F). Expect about 99 mm (3.9 in) of precipitation spread over 10 days, and prepare for a fairly humid experience with an average humidity of 77%.
In September in Clarissa, the average temperature is 16°C (61°F), with maximums reaching 31°C (88°F) and minimums dropping as low as -1°C (31°F). It's a great time for travelers to enjoy a mix of warm days and cool nights while exploring the beauty of Clarissa.
In Clarissa in September, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.
In Clarissa in September humidity is 77%. With an average temperature of 16°C (61°F), this humidity feels like a slight heaviness in the air, making every step feel a touch more effortful while traveling. The dampness clings to your skin, adding a layer of discomfort, yet the mild temperature invites you to explore the surroundings, blending the challenge of the humidity with an opportunity for a refreshing adventure.
In Clarissa 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 Clarissa.
UV Risk Categories
Weather in Clarissa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Clarissa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (12°F) | 19 mm (0.8 inches) | 90% | low |
| February Weather | -11°C (12°F) | 23 mm (0.9 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 37 mm (1.5 inches) | 85% | moderate |
| April Weather | 4°C (40°F) | 62 mm (2.4 inches) | 81% | high |
| May Weather | 13°C (56°F) | 80 mm (3.2 inches) | 75% | very high |
| June Weather | 20°C (69°F) | 77 mm (3.0 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 91 mm (3.6 inches) | 76% | very high |
| August Weather | 20°C (68°F) | 104 mm (4.1 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 99 mm (3.9 inches) | 77% | high |
| October Weather | 7°C (45°F) | 93 mm (3.6 inches) | 79% | moderate |
| November Weather | -2°C (29°F) | 26 mm (1.0 inches) | 86% | moderate |
| December Weather | -7°C (19°F) | 48 mm (1.9 inches) | 86% | low |