Last updated: June 24, 2025
In August, the average temperature in Grand Rapids, United States is a pleasant 22°C (72°F), with a minimum dropping to 8°C (47°F) and a maximum soaring to 32°C (90°F). Expect 73 mm (2.9 in) of precipitation spread over 11 days, accompanied by an average humidity of 79%. Perfect for those who enjoy a mix of warmth and refreshing rain!
In August in Grand Rapids, the average temperature is 22°C (72°F), with maximums reaching as high as 32°C (90°F) and minimums dropping to around 8°C (47°F). This diverse climate makes Grand Rapids an ideal destination for travelers seeking a mix of warm days and cool evenings.
In Grand Rapids in August, the precipitation amount is 73 mm (2.9 in), spread over 11 days.
In Grand Rapids in August humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.
In Grand Rapids 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 Grand Rapids.
UV Risk Categories
Weather in Grand Rapids varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Grand Rapids, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 64 mm (2.5 inches) | 87% | low |
| February Weather | -3°C (27°F) | 70 mm (2.7 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 67 mm (2.6 inches) | 86% | moderate |
| April Weather | 8°C (46°F) | 91 mm (3.6 inches) | 87% | very high |
| May Weather | 15°C (60°F) | 138 mm (5.4 inches) | 82% | very high |
| June Weather | 21°C (70°F) | 119 mm (4.7 inches) | 81% | very high |
| July Weather | 24°C (75°F) | 65 mm (2.6 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 73 mm (2.9 inches) | 79% | very high |
| September Weather | 19°C (66°F) | 111 mm (4.4 inches) | 79% | high |
| October Weather | 12°C (53°F) | 130 mm (5.1 inches) | 82% | moderate |
| November Weather | 4°C (39°F) | 63 mm (2.5 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 67 mm (2.6 inches) | 86% | low |