Last updated: June 24, 2025
In May, the average temperature in Grand Rapids, United States hovers around 16°C (62°F). Expect variations, with minimums dipping as low as -1°C (30°F), while the mercury can soar to a maximum of 34°C (94°F). During this month, precipitation averages 145 mm (5.7 in) over 15 days, creating a humidity level of approximately 81%. Enjoy the diverse weather while exploring the vibrant locale!
In May in Grand Rapids, the average temperature is 16°C (62°F). The maximum can reach 34°C (94°F), and the minimum can be as low as -1°C (30°F). Visitors should pack for a wide range of weather conditions to ensure a comfortable experience during their travels.
In Grand Rapids in May, the precipitation amount is 145 mm (5.7 in) spread over the course of 15 days.
In Grand Rapids in May, humidity is 81%. With an average temperature of 16°C (62°F), this humidity feels like a warm embrace that can quickly leave travelers feeling sticky and drained, making outdoor adventures a bit challenging unless they stay properly hydrated and take breaks in the shade.
In Grand Rapids in May, 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 Grand Rapids.
UV Risk Categories
Weather in Grand Rapids varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Grand Rapids, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 69 mm (2.7 inches) | 88% | moderate |
| February Weather | -1°C (30°F) | 72 mm (2.8 inches) | 87% | moderate |
| March Weather | 4°C (40°F) | 84 mm (3.3 inches) | 87% | high |
| April Weather | 10°C (49°F) | 93 mm (3.7 inches) | 87% | very high |
| May Weather | 16°C (62°F) | 145 mm (5.7 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 106 mm (4.2 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 112 mm (4.4 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 88 mm (3.5 inches) | 78% | very high |
| September Weather | 20°C (68°F) | 59 mm (2.3 inches) | 78% | very high |
| October Weather | 14°C (57°F) | 92 mm (3.6 inches) | 82% | high |
| November Weather | 5°C (41°F) | 83 mm (3.3 inches) | 89% | moderate |
| December Weather | 1°C (35°F) | 56 mm (2.2 inches) | 86% | low |