Last updated: June 24, 2025
In Sandwich, United States, the average temperature in May hovers around 13°C (55°F), making it a comfortable time of year. However, be prepared for variability, as temperatures can dip to a minimum of 0°C (32°F) and soar to a maximum of 32°C (90°F). During this month, you can expect 85 mm (3.4 in) of precipitation spread over 12 days, contributing to an average humidity level of 72%. Prepare accordingly for a mix of weather while enjoying all that Sandwich has to offer!
In May in Sandwich, the average temperature is 13°C (55°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 0°C (32°F). It's essential to prepare for a range of temperatures when traveling to Sandwich during this month.
In Sandwich in May, the precipitation amount is 85 mm (3.4 in) over the course of 12 days.
In Sandwich in May humidity is 72%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making outdoor exploration somewhat uncomfortable and prompting travelers to seek shade or indoor activities more often.
In Sandwich 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 Sandwich.
UV Risk Categories
Weather in Sandwich varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sandwich, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 79 mm (3.1 inches) | 86% | moderate |
| February Weather | -5°C (24°F) | 88 mm (3.5 inches) | 84% | moderate |
| March Weather | -1°C (30°F) | 76 mm (3.0 inches) | 82% | moderate |
| April Weather | 6°C (43°F) | 137 mm (5.4 inches) | 80% | very high |
| May Weather | 13°C (55°F) | 85 mm (3.4 inches) | 72% | very high |
| June Weather | 18°C (65°F) | 102 mm (4.0 inches) | 72% | very high |
| July Weather | 21°C (70°F) | 145 mm (5.7 inches) | 67% | very high |
| August Weather | 20°C (69°F) | 95 mm (3.7 inches) | 66% | very high |
| September Weather | 17°C (62°F) | 68 mm (2.7 inches) | 71% | high |
| October Weather | 10°C (51°F) | 138 mm (5.4 inches) | 78% | moderate |
| November Weather | 2°C (36°F) | 121 mm (4.8 inches) | 84% | moderate |
| December Weather | -3°C (26°F) | 127 mm (5.0 inches) | 81% | low |