Last updated: June 24, 2025
In August, the average temperature in Mandan, United States hovers around 21°C (70°F), providing a pleasant climate. However, temperatures can vary significantly, with minimums dropping to 7°C (44°F) and soaring to maximums of 37°C (100°F). Visitors should be prepared for occasional rain, as the area receives about 60 mm (2.4 in) of precipitation over 8 days. With an average humidity of 78%, the air remains comfortably humid—perfect for enjoying the local scenery!
In August in Mandan, the average temperature is 21°C (70°F), with maximums reaching up to 37°C (100°F) and minimums dropping as low as 7°C (44°F). It's a great time to visit Mandan, as the mild weather allows for a variety of outdoor activities and exploration.
In Mandan in August, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.
In Mandan in August, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.
In Mandan in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mandan.
UV Risk Categories
Weather in Mandan varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Mandan, 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) | 84% | low |
| February Weather | -10°C (14°F) | 16 mm (0.6 inches) | 88% | moderate |
| March Weather | -1°C (30°F) | 26 mm (1.0 inches) | 78% | moderate |
| April Weather | 4°C (40°F) | 27 mm (1.1 inches) | 75% | very high |
| May Weather | 13°C (56°F) | 52 mm (2.0 inches) | 76% | very high |
| June Weather | 20°C (69°F) | 63 mm (2.5 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 62 mm (2.4 inches) | 78% | very high |
| August Weather | 21°C (70°F) | 60 mm (2.4 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 56 mm (2.2 inches) | 69% | high |
| October Weather | 6°C (44°F) | 56 mm (2.2 inches) | 71% | moderate |
| November Weather | -1°C (31°F) | 16 mm (0.6 inches) | 82% | moderate |
| December Weather | -6°C (22°F) | 22 mm (0.9 inches) | 84% | low |