September weather forecastRehoboth, MA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Rehoboth, Massachusetts, with an average temperature varying between 57.2°F (14°C) and 72.5°F (22.5°C).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a moderately hot 79.9°F (26.6°C) in August to a pleasant 72.5°F (22.5°C). During September, the average low-temperature is a moderate 57.2°F (14°C).Humidity
The average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 1.06" (27mm) of precipitation.Snowfall
In Rehoboth, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:27 pm EDT.
Sunshine
In Rehoboth, Massachusetts, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rehoboth, MA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Rehoboth, MA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Rehoboth, MA
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Rehoboth, MA
- Average humidity in September: 78%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Rehoboth, MA
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in September
Rehoboth, MA
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Rehoboth, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Rehoboth, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rehoboth, MA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Rehoboth, MA
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in September
Rehoboth, MA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Rehoboth, MA
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Rehoboth, MA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
