Last updated: June 24, 2025
In May, the average temperature in West Sayville, United States is a pleasant 14°C (57°F), with a range that can dip to a minimum of 3°C (38°F) and soar to a comfortable maximum of 25°C (77°F). Expect an average precipitation of 117 mm (4.6 in) spread over 12 days, contributing to a relatively humid atmosphere with an average humidity of 69%.
In May in West Sayville, the average temperature is 14°C (57°F). Maximums can reach 25°C (77°F), while minimums can drop to as low as 3°C (38°F). It's a great time to explore West Sayville, as the mild temperatures make for comfortable travel conditions.
In West Sayville in May, the total precipitation amount is 117 mm (4.6 in), occurring over a span of 12 days.
In West Sayville in May, humidity is 69%. With an average temperature of 14°C (57°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities slightly uncomfortable but manageable for traveling, especially if you stay hydrated and take breaks in shaded areas.
In West Sayville 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 West Sayville.
UV Risk Categories
Weather in West Sayville varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in West Sayville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 80 mm (3.1 inches) | 84% | moderate |
| February Weather | 3°C (37°F) | 108 mm (4.3 inches) | 82% | moderate |
| March Weather | 5°C (41°F) | 106 mm (4.2 inches) | 81% | high |
| April Weather | 9°C (49°F) | 125 mm (4.9 inches) | 78% | very high |
| May Weather | 14°C (57°F) | 117 mm (4.6 inches) | 69% | very high |
| June Weather | 20°C (67°F) | 77 mm (3.0 inches) | 69% | very high |
| July Weather | 24°C (75°F) | 113 mm (4.5 inches) | 62% | very high |
| August Weather | 24°C (75°F) | 101 mm (4.0 inches) | 65% | very high |
| September Weather | 21°C (70°F) | 91 mm (3.6 inches) | 68% | very high |
| October Weather | 16°C (62°F) | 137 mm (5.4 inches) | 74% | high |
| November Weather | 10°C (50°F) | 103 mm (4.1 inches) | 82% | moderate |
| December Weather | 5°C (42°F) | 134 mm (5.3 inches) | 80% | low |