Last updated: June 24, 2025
In May, the average temperature in Marlborough, United States is a pleasant 15°C (59°F), with a minimum dipping as low as 2°C (35°F) and peaking at a warm 34°C (94°F). Expect about 92 mm (3.6 in) of precipitation spread over 12 days, contributing to an average humidity of 72%. Embrace the climate and prepare for a mix of mild days and refreshing rain!
In May in Marlborough, the average temperature is 15°C (59°F). Maximums can reach 34°C (94°F) and minimums can be as low as 2°C (35°F). This range makes it ideal for travelers who enjoy both warm days and cooler evenings.
In Marlborough in May, the precipitation amount is 92 mm (3.6 in) over the course of 12 days.
In Marlborough in May humidity is 72%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket wrapping around you, creating a sultry atmosphere that can make traveling a bit uncomfortable. The stickiness in the air can leave you feeling sluggish, so it’s advisable to stay hydrated and take breaks often while exploring.
In Marlborough 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 Marlborough.
UV Risk Categories
Weather in Marlborough varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Marlborough, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 67 mm (2.6 inches) | 86% | moderate |
| February Weather | 0°C (33°F) | 85 mm (3.3 inches) | 84% | moderate |
| March Weather | 3°C (38°F) | 91 mm (3.6 inches) | 82% | high |
| April Weather | 9°C (49°F) | 124 mm (4.9 inches) | 80% | very high |
| May Weather | 15°C (59°F) | 92 mm (3.6 inches) | 72% | very high |
| June Weather | 20°C (69°F) | 87 mm (3.4 inches) | 72% | very high |
| July Weather | 23°C (74°F) | 131 mm (5.1 inches) | 67% | very high |
| August Weather | 23°C (74°F) | 89 mm (3.5 inches) | 66% | very high |
| September Weather | 19°C (66°F) | 83 mm (3.3 inches) | 71% | high |
| October Weather | 13°C (56°F) | 139 mm (5.5 inches) | 78% | high |
| November Weather | 6°C (43°F) | 96 mm (3.8 inches) | 84% | moderate |
| December Weather | 1°C (34°F) | 118 mm (4.6 inches) | 81% | low |