Last updated: June 24, 2025
In May, the average temperature in Bay City, United States is a pleasant 11°C (53°F). You'll experience a minimum of 6°C (43°F) and occasionally bask in a maximum of 21°C (71°F). Be prepared for some rain, as precipitation averages around 77 mm (3.0 in) over 12 days. With an average humidity of 83%, the air can feel quite moist, adding to the region's unique charm.
In May in Bay City, the average temperature is 11°C (53°F), with maximums reaching up to 21°C (71°F) and minimums dropping as low as 6°C (43°F). It's a great time to explore Bay City, as the mild weather offers comfortable conditions for outdoor activities and sightseeing.
In Bay City in May, the precipitation amount is 77 mm (3.0 in) spread over 12 days.
In Bay City in May, humidity is 83%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and causing an inevitable sheen of sweat to form, which can dampen the joy of exploring your surroundings.
In Bay City in May, 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 Bay City.
UV Risk Categories
Weather in Bay City varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Bay City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 8°C (46°F) | 270 mm (10.6 inches) | 85% | low |
| February Weather | 7°C (44°F) | 244 mm (9.6 inches) | 84% | moderate |
| March Weather | 8°C (46°F) | 192 mm (7.6 inches) | 85% | moderate |
| April Weather | 9°C (49°F) | 157 mm (6.2 inches) | 83% | high |
| May Weather | 11°C (53°F) | 77 mm (3.0 inches) | 83% | very high |
| June Weather | 14°C (57°F) | 67 mm (2.6 inches) | 83% | very high |
| July Weather | 15°C (59°F) | 16 mm (0.6 inches) | 82% | very high |
| August Weather | 15°C (60°F) | 17 mm (0.7 inches) | 74% | very high |
| September Weather | 15°C (59°F) | 96 mm (3.8 inches) | 71% | high |
| October Weather | 12°C (54°F) | 176 mm (6.9 inches) | 81% | moderate |
| November Weather | 10°C (50°F) | 274 mm (10.8 inches) | 87% | moderate |
| December Weather | 8°C (46°F) | 301 mm (11.8 inches) | 87% | low |