Last updated: June 24, 2025
In West Haven-Sylvan, United States, the average temperature in May is a mild 14°C (58°F). Expect a minimum of 2°C (36°F) and a pleasant maximum of 32°C (90°F). However, be prepared for some rain, as 58 mm (2.3 in) of precipitation is expected over 10 days. The air is quite humid too, with an average humidity level of 83%, adding a touch of tropical charm to your experience!
In May in West Haven-Sylvan, the average temperature is 14°C (58°F). Maximums can reach 32°C (90°F) and minimums can be as low as 2°C (36°F). Be prepared for a wide range of temperatures, making it ideal for layering your clothing when traveling.
In West Haven-Sylvan in May, the total precipitation amount is 58 mm (2.3 in), measured over a span of 10 days.
In West Haven-Sylvan in May, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.
In West Haven-Sylvan 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 West Haven-Sylvan.
UV Risk Categories
Weather in West Haven-Sylvan varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in West Haven-Sylvan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 163 mm (6.4 inches) | 85% | low |
| February Weather | 5°C (41°F) | 172 mm (6.8 inches) | 84% | moderate |
| March Weather | 8°C (46°F) | 135 mm (5.3 inches) | 85% | moderate |
| April Weather | 11°C (51°F) | 117 mm (4.6 inches) | 83% | high |
| May Weather | 14°C (58°F) | 58 mm (2.3 inches) | 83% | very high |
| June Weather | 18°C (64°F) | 46 mm (1.8 inches) | 83% | very high |
| July Weather | 21°C (69°F) | 6 mm (0.2 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 8 mm (0.3 inches) | 74% | very high |
| September Weather | 18°C (64°F) | 62 mm (2.4 inches) | 71% | high |
| October Weather | 12°C (53°F) | 105 mm (4.1 inches) | 81% | moderate |
| November Weather | 8°C (47°F) | 155 mm (6.1 inches) | 87% | moderate |
| December Weather | 5°C (41°F) | 183 mm (7.2 inches) | 87% | low |