September weather forecast
Massachusetts, USA

September in Massachusetts heralds the onset of autumn, a season celebrated for its picturesque landscapes and temperate conditions. The state sees temperatures oscillating between a comfortable 52°F (11.1°C) during the cooler nights and reaching up to 75°F (23.9°C) during the daytime. As the month progresses, these temperatures begin their downward trend, hinting at the approaching chill of winter.

The influence of the Atlantic Ocean remains evident in coastal regions such as Boston, Cape Cod, and the offshore islands. While the warmth of summer has waned, these areas still experience milder conditions compared to the state's interior. The ocean's cooling influence becomes more pronounced, making the beaches less populated but no less beautiful.

September is notable for its decreasing humidity levels. This reduction brings a crispness to the air, making outdoor activities, especially in the latter half of the month, all the more enjoyable. Rainfall, while present, tends to be less frequent and intense than the summer months. Thunderstorms become a rarer occurrence, replaced by steadier rain showers when they do appear.

The most defining feature of September, however, is the transformation of the state's foliage. The western and northern regions, particularly the Berkshire Hills and the Taconic Range, begin showcasing a riot of colors, from deep reds to bright oranges and yellows. This natural spectacle attracts visitors from near and far, eager to witness the state's renowned fall foliage.

Transitioning from September to October, Massachusetts delves deeper into the heart of autumn. Temperatures continue to drop, especially during the nights, requiring warmer attire. By the conclusion of September, the state is well-prepared for the full display of autumnal beauty and the cooler conditions that October brings.

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• Boston - September »
  Boston experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 80.4°F (26.9°C) in August to an agreeable 72.7°F (22.6°C). In Boston in September, the average water temperature is 64.8°F (18.2°C).
• Worcester - September »
  In Worcester snow does not fall in June through September. On the last day of September, in Worcester sunrise is at 6:43 am and sunset at 6:29 pm EDT.
• Springfield - September »
  The month with the least rainfall in Springfield is September, when the rain falls for 3.8 days and typically collects 0.08" (2mm) of precipitation. The month with the least rainfall in Springfield is September, when the rain falls for 3.8 days and typically collects 0.08" (2mm) of precipitation.
• Lowell - September »
  The month with the least rainfall in Lowell is September, when the rain falls for 11.5 days and typically collects 1.46" (37mm) of precipitation. The month with the least rainfall in Lowell is September, when the rain falls for 11.5 days and typically collects 1.46" (37mm) of precipitation.
• Cambridge - September »
  The month with the least rainfall in Cambridge is September, when the rain falls for 6.4 days and typically collects 0.2" (5mm) of precipitation. September stands as a transition month in Cambridge marking the shift from summer to autumn.
• New Bedford - September »
  In New Bedford during September, the rain falls for 10.5 days and regularly aggregates up to 1.06" (27mm) of precipitation. New Bedford experiences an average nighttime temperature of 59.7°F (15.4°C) in the month of September.
• Brockton - September »
  The month with the least rainfall in Brockton is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation. As Brockton enters September, the average high-temperature subtly lowers from the a moderately hot 81°F (27.2°C) of August to an agreeable 73°F (22.8°C).
• Quincy - September »
  On the first day of September in Quincy, sunrise is at 6:10 am and sunset at 7:17 pm. In Quincy, in September, during 6.9 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.
• Lynn - September »
  In Lynn in September, it is raining for 11.5 days, with typically 1.42" (36mm) of accumulated precipitation. In September, the average ocean temperature in Lynn is 64°F (17.8°C).
• Fall River - September »
  The entrance of Fall is marked by September in Fall River with the city's weather making a turn towards cooler days. How many days does it rain in September in Fall River?
• Newton - September »
  The month with the least rainfall in Newton is September, when the rain falls for 6.6 days and typically collects 0.24" (6mm) of precipitation. In Newton in September, it is raining for 6.6 days, with typically 0.24" (6mm) of accumulated precipitation.
• Lawrence - September »
  The month with the least rainfall in Lawrence is September, when the rain falls for 11.1 days and typically collects 1.46" (37mm) of precipitation. The month with the least rainfall in Lawrence is September, when the rain falls for 11.1 days and typically collects 1.46" (37mm) of precipitation.