Last updated: June 24, 2025
In May, the average temperature in Glen Allen, United States hovers around 20°C (69°F), providing a pleasant climate for outdoor activities. However, be prepared for fluctuations, as temperatures can dip to a chilly 2°C (36°F) and soar to a sweltering 36°C (97°F). With an average precipitation amount of 105 mm (4.1 in) spread across 11 days, it's wise to keep an umbrella handy. The average humidity level reaches 82%, giving you that tropical feel. Enjoy your time in this vibrant locale!
In May in Glen Allen, the average temperature is 20°C (69°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 2°C (36°F). This variation in temperature makes Glen Allen an ideal destination for travelers seeking both warm days and cooler evenings.
In Glen Allen in May, the precipitation amount is 105 mm (4.1 in) over the course of 11 days.
In Glen Allen in May humidity is 82%. With an average temperature of 20°C (69°F), this humidity feels like a warm, sticky embrace that clings to your skin, making it necessary to stay hydrated while exploring the sights.
In Glen Allen 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 Glen Allen.
UV Risk Categories
Weather in Glen Allen varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Glen Allen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 64 mm (2.5 inches) | 84% | moderate |
| February Weather | 7°C (45°F) | 96 mm (3.8 inches) | 84% | high |
| March Weather | 10°C (50°F) | 75 mm (2.9 inches) | 84% | high |
| April Weather | 15°C (60°F) | 106 mm (4.2 inches) | 82% | very high |
| May Weather | 20°C (69°F) | 105 mm (4.1 inches) | 82% | very high |
| June Weather | 24°C (76°F) | 129 mm (5.1 inches) | 83% | very high |
| July Weather | 27°C (81°F) | 102 mm (4.0 inches) | 79% | very high |
| August Weather | 26°C (78°F) | 172 mm (6.8 inches) | 77% | very high |
| September Weather | 23°C (73°F) | 97 mm (3.8 inches) | 75% | very high |
| October Weather | 17°C (64°F) | 122 mm (4.8 inches) | 81% | high |
| November Weather | 10°C (49°F) | 72 mm (2.8 inches) | 87% | moderate |
| December Weather | 6°C (44°F) | 93 mm (3.7 inches) | 85% | moderate |