United StatesThe weather in September in Massachusetts
It's warm in September in Massachusetts with an average temperature of 24°C. Temperatures this month range from a low of 18°C to a high of 28°C. At night, you can expect temperatures between 11°C and 17°C.
Looking for great weather? September is a good time to be in Massachusetts. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Massachusetts, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2018, Massachusetts reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 13°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 0°C to a highest value of 23°C.
Rainfall amount
In September, there is an average of 88 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Massachusetts
Click on any day in September to get detailed info about the usual weather on that day in Massachusetts. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Massachusetts | New York | |
|---|---|---|
| Average temperature | 24°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 88 mm | 57 mm |
| Rainy days | 12 days | 9 days |
Start of September
The month of September starts in Massachusetts with hot temps, averaging around 27°C during the day and nights around 16°C.
Mid September
By mid-September, daytime temps drop to around 24°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Massachusetts is around 23°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Massachusetts for all months and discover the best travel time
The climate in Massachusetts is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Massachusetts to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in Massachusetts, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Massachusetts
Temperature in September in Massachusetts over the years
Precipitation charts
These charts show the average amount of precipitation in September in Massachusetts, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Massachusetts
Total precipitation in September in Massachusetts over the years
Daily UV index in September in Massachusetts
This chart shows the average daily UV index in September in Massachusetts, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Massachusetts
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Average weather in Massachusetts by month
Click on a month below to see detailed weather info for Massachusetts. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.