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Get the monthly weather forecast for Boston, MA, including daily high/low, historical averages, to help you plan ahead.
September Weather in Boston Massachusetts, United States. Daily high temperatures decrease by 9°F, from 76°F to 67°F, rarely falling below 58°F or exceeding 86°F. Daily low temperatures decrease by 9°F, from 62°F to 53°F, rarely falling below 44°F or exceeding 69°F.
Check accurate weather in September in Boston (MA). Expect Boston September temperature around 24°C (74°F). Read clothing tips & recommended activities.
In September temperature highs in Boston reach a pleasant 73°F (23°C) - ideal for enjoying some great sightseeing. The sun still shines for 8 hours each day and it’s one of the least rainy months with only 6 rainy days on average. Temperature lows measure 58°F (14°C) and the Atlantic Ocean has a water temperature of 65°F (18°C).
Usually every day in September warms to over 60 degrees Fahrenheit (16 degrees Celsius) in Boston. The city averages 1 day this month when the thermometer reaches into the 90s °F (over 32 °C). Temperatures above 100 °F (38 °C) are not expected here during September.
The average temperature in Boston in September for a typical day ranges from a high of 75°F (24°C) to a low of 58°F (14°C). Some would describe it as mildly cool with a gentle breeze. For comparison, the hottest month in Boston, July, has days with highs of 82°F (28°C) and lows of 65°F (18°C).
In september in Boston, the climate is quite dry (with 3.1in of rainfall over 4 days). The weather is better from the previous month since in august it receives an average of 3.9in of rainfall over 5 days. The climate quite good in this location september. The high seasonal norm is 76°F.
Jun 21, 2024 · September weather forecast for Boston, Massachusetts: In Boston, entering September brings a subtle temperature decrement, reducing from August's moderately hot 80.4°F (26.9°C) to an agreeable 72.7°F (22.6°C). In Boston, in September, the average water temperature is 64.8°F (18.2°C).
Boston Temperature History September 2021. The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.
This page contains a list of the average monthly high and low temperatures in Boston, Massachusetts for the month of September each year between 1893 and 2023. It is based on NOAA data.
