Last updated: June 24, 2025
In West Portsmouth, United States, the average temperature in May hovers around 19°C (66°F), creating a pleasant atmosphere for outdoor activities. However, temperatures can vary significantly, with minimums dropping to 1°C (34°F) and maximums soaring up to 32°C (90°F). Expect about 128 mm (5.0 in) of precipitation spread across 14 days, contributing to an average humidity of 81%—perfect for those who enjoy a lush, green environment!
In May in West Portsmouth, the average temperature is 19°C (66°F). Maximums can reach 32°C (90°F) and minimums can be as low as 1°C (34°F). This variation means that travelers should pack a range of clothing to accommodate both warm days and cooler nights.
In West Portsmouth in May, the precipitation amount is 128 mm (5.0 in) over a span of 14 days.
In West Portsmouth in May, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.
In West Portsmouth 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 Portsmouth.
UV Risk Categories
Weather in West Portsmouth varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in West Portsmouth, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 85 mm (3.3 inches) | 88% | moderate |
| February Weather | 4°C (39°F) | 124 mm (4.9 inches) | 88% | moderate |
| March Weather | 8°C (47°F) | 106 mm (4.2 inches) | 87% | high |
| April Weather | 13°C (55°F) | 128 mm (5.0 inches) | 85% | very high |
| May Weather | 19°C (66°F) | 128 mm (5.0 inches) | 81% | very high |
| June Weather | 23°C (73°F) | 157 mm (6.2 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 107 mm (4.2 inches) | 81% | very high |
| August Weather | 24°C (75°F) | 120 mm (4.7 inches) | 73% | very high |
| September Weather | 21°C (71°F) | 109 mm (4.3 inches) | 73% | very high |
| October Weather | 15°C (60°F) | 116 mm (4.5 inches) | 78% | high |
| November Weather | 7°C (45°F) | 77 mm (3.0 inches) | 89% | moderate |
| December Weather | 4°C (40°F) | 112 mm (4.4 inches) | 87% | moderate |