Last updated: June 24, 2025
In May, the average temperature in Charles City, United States hovers around 20°C (69°F). While you might enjoy pleasant days, be prepared for a range of temperatures—from a cool 3°C (38°F) to a scorching 36°C (97°F). Expect about 107 mm (4.2 in) of precipitation over 11 days, contributing to the average humidity of 80%. Stay hydrated and enjoy the dynamic weather!
In May in Charles City, the average temperature is 20°C (69°F). The maximum can reach 36°C (97°F), and the minimum can be as low as 3°C (38°F). This makes it an ideal time for travelers seeking mild weather and the chance to experience a diverse range of outdoor activities.
In Charles City in May, the precipitation amount is 107 mm (4.2 in) spread over a period of 11 days.
In Charles City in May, humidity is 80%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket enveloping you, making every step slightly more challenging as you navigate the air that clings to your skin, often leaving you longing for a cool breeze while exploring the sights.
In Charles City 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 Charles City.
UV Risk Categories
Weather in Charles City varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Charles City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 82 mm (3.2 inches) | 84% | moderate |
| February Weather | 8°C (46°F) | 103 mm (4.0 inches) | 83% | high |
| March Weather | 10°C (51°F) | 86 mm (3.4 inches) | 82% | high |
| April Weather | 16°C (60°F) | 103 mm (4.0 inches) | 81% | very high |
| May Weather | 20°C (69°F) | 107 mm (4.2 inches) | 80% | very high |
| June Weather | 24°C (76°F) | 113 mm (4.5 inches) | 82% | very high |
| July Weather | 27°C (81°F) | 119 mm (4.7 inches) | 81% | extreme |
| August Weather | 26°C (79°F) | 155 mm (6.1 inches) | 81% | very high |
| September Weather | 23°C (74°F) | 108 mm (4.2 inches) | 78% | very high |
| October Weather | 18°C (65°F) | 116 mm (4.6 inches) | 80% | very high |
| November Weather | 10°C (51°F) | 78 mm (3.1 inches) | 84% | moderate |
| December Weather | 7°C (45°F) | 88 mm (3.5 inches) | 84% | moderate |