Last updated: June 24, 2025
In Saint Joseph, United States, the average temperature in August hovers around 21°C (71°F), offering a delightful climate. Expect minimums as low as 11°C (52°F) and maximums soaring to 34°C (93°F). During this month, you can anticipate about 111 mm (4.4 in) of precipitation over 11 days, along with a moderate average humidity of 69%. Get ready for a mix of warm days and refreshing showers!
In August in Saint Joseph, the average temperature is 21°C (71°F). Maximum temperatures can reach 34°C (93°F), while the minimum can drop as low as 11°C (52°F). This makes Saint Joseph an ideal destination for travelers seeking pleasant and moderately warm weather during this time of year.
In Saint Joseph in August, the precipitation amount is 111 mm (4.4 in), occurring over the course of 11 days.
In Saint Joseph in August humidity is 69%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, creating a tropical atmosphere that can make outdoor activities feel slightly sticky, yet invigorating for travelers who are ready to embrace the local culture and explore.
In Saint Joseph 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 Saint Joseph.
UV Risk Categories
Weather in Saint Joseph varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Saint Joseph, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 37 mm (1.5 inches) | 84% | low |
| February Weather | -6°C (21°F) | 52 mm (2.0 inches) | 85% | moderate |
| March Weather | 2°C (35°F) | 58 mm (2.3 inches) | 84% | moderate |
| April Weather | 7°C (45°F) | 87 mm (3.4 inches) | 83% | very high |
| May Weather | 15°C (59°F) | 136 mm (5.4 inches) | 75% | very high |
| June Weather | 21°C (71°F) | 122 mm (4.8 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 106 mm (4.2 inches) | 75% | very high |
| August Weather | 21°C (71°F) | 111 mm (4.4 inches) | 69% | very high |
| September Weather | 18°C (65°F) | 108 mm (4.2 inches) | 74% | very high |
| October Weather | 10°C (50°F) | 120 mm (4.7 inches) | 79% | moderate |
| November Weather | 2°C (35°F) | 51 mm (2.0 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 43 mm (1.7 inches) | 82% | low |