September weather forecast
Salem, MA

Salem's summer transitions into fall during September, with temperatures falling between 54°F (12.2°C) and 73°F (22.8°C). With the departure of the summer crowds, the city maintains its beauty with the leaves beginning to change colors. The sea temperature remains comfortable at 61°F (16.1°C) inviting people for a last dip before the cold sets in. Despite eight rainfall days, September allows the enjoyment of outdoor activities amidst the changing foliage.

Temperature

A subtle shift in Salem's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 80.6°F (27°C) to a still warm 73.4°F (23°C). Throughout September, the average low-temperature records at a cool 53.6°F (12°C).

Rainfall

In Salem, in September, it is raining for 8 days, with typically 3.35" (85mm) of accumulated precipitation. In Salem, during the entire year, the rain falls for 124 days and collects up to 43.03" (1093mm) of precipitation.

Ocean temperature

In Salem, Massachusetts, the average seawater temperature in September is 60.8°F (16°C).
Note: The majority of people find swimming in 60.8°F (16°C) unenjoyable. As the water temperature decreases from 69.8°F (21°C) to 59°F (15°C), breathing becomes more challenging to control.

Daylight

In Salem, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:09 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

Sunshine

In Salem, the average sunshine in September is 8h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.