May weather forecast
Salem, MA

Lifting average temperatures from 48°F (8.9°C) to 66°F (18.9°C), May sees the emergence of a full-scale spring in Salem. With the temperature becoming more warm and the city witnessing more sunlight than cloudy days, outdoor activities become more enjoyable. The captivating scent of blooming flowers enhances the city's charm, attracting tourists to its historic sites. With daylight hours peaking at approximately 14.6 hours, May is a great month to visit Salem. Nevertheless, the average rainfall in May, of about 3.3" (84mm), is to be considered as well.

Temperature

May's arrival signals an increase in average high-temperatures, moving from April's mild 55.4°F (13°C) to a still refreshing 66.2°F (19°C). The nighttime temperature dips to a frosty 48.2°F (9°C) on average during May.

Rainfall

In Salem, in May, it is raining for 11 days, with typically 3.35" (85mm) of accumulated precipitation. Throughout the year, there are 124 rainfall days, and 43.03" (1093mm) of precipitation is accumulated.

Ocean temperature

In Salem, the average seawater temperature in May is 46.4°F (8°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

The average length of the day in May is 14h and 38min.
On the first day of the month, sunrise is at 5:37 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:08 am and sunset at 8:13 pm EDT.

Sunshine

In May, the average sunshine is 8h.

UV index

In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 in May translates into these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.