Last updated: June 24, 2025
In May, the average temperature in Manhattan, United States hovers around 16°C (62°F), with extremes ranging from a chilly -2°C (29°F) to a sweltering 34°C (94°F). Expect a substantial precipitation amount of 159 mm (6.3 in) spread over 15 days, contributing to an average humidity of 79%. Whether you're planning outdoor adventures or cozy indoor activities, be prepared for a mix of weather this month!
In May in Manhattan, the average temperature is 16°C (62°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as -2°C (29°F). Be sure to pack layers to accommodate the wide temperature range during your travels!
In Manhattan in May, the precipitation amount is 159 mm (6.3 in) over a span of 15 days.
In Manhattan in May, humidity is 79%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that makes walking outdoors feel languid and heavy, demanding frequent breaks and plenty of water as you navigate the bustling streets.
In Manhattan 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 Manhattan.
UV Risk Categories
Weather in Manhattan varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Manhattan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 65 mm (2.6 inches) | 82% | moderate |
| February Weather | -2°C (29°F) | 67 mm (2.6 inches) | 83% | moderate |
| March Weather | 4°C (40°F) | 93 mm (3.7 inches) | 84% | high |
| April Weather | 9°C (49°F) | 122 mm (4.8 inches) | 85% | very high |
| May Weather | 16°C (62°F) | 159 mm (6.3 inches) | 79% | very high |
| June Weather | 22°C (72°F) | 143 mm (5.6 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 114 mm (4.5 inches) | 80% | very high |
| August Weather | 23°C (74°F) | 86 mm (3.4 inches) | 81% | very high |
| September Weather | 20°C (68°F) | 81 mm (3.2 inches) | 80% | very high |
| October Weather | 13°C (55°F) | 138 mm (5.4 inches) | 82% | high |
| November Weather | 4°C (40°F) | 61 mm (2.4 inches) | 88% | moderate |
| December Weather | 1°C (34°F) | 56 mm (2.2 inches) | 84% | low |