August weather forecast
Massachusetts, USA

August in Massachusetts is a continuation of summer's warmth, but with a perceptible shift as the month progresses. The state typically experiences temperatures ranging from 59°F (15°C) during nighttime to highs around 88°F (31.1°C) in the daytime. While the heat is still pronounced, especially in the first half of the month, August does see a gradual decline in temperatures as it ushers in the early signs of fall.

Coastal areas such as Boston, Cape Cod, and the offshore islands continue to benefit from the moderating influence of the Atlantic Ocean. These regions, while remaining warm, often have milder daytime temperatures and cooler nights, thanks to the oceanic breezes that flow inland.

August, like its predecessor July, still experiences its share of humidity. This, combined with the warmth, can lead to sporadic thunderstorms, especially during the afternoons. These storms, while occasionally intense, are generally brief, bringing short-lived precipitation that can offer a welcome break from the heat.

The sun, while still dominant, starts to set a tad earlier as the month wears on, hinting at the impending transition to autumn. Beaches remain popular, but there's a noticeable reduction in the throngs of tourists as the month concludes and the academic year begins for many.

Moving from August to September, Massachusetts starts to embrace the cooler breezes and the initial shades of fall foliage. The latter part of August, particularly in the western and northern parts of the state, might even witness early leaf changes, signifying the state's gradual shift from the heat of summer to the temperate beauty of autumn. By month's end, residents and visitors alike begin to anticipate the colorful display and crisp air that September promises.

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• Boston - August »
  August is the month with the warmest seawater in Boston, with an average ocean temperature of 68°F (20°C). With an average ocean temperature of 68°F (20°C), August is the month with the warmest seawater in Boston.
• Worcester - August »
  In Worcester during August, the rain falls for 14.6 days and regularly aggregates up to 2.4" (61mm) of precipitation. The months with the highest UV index in Worcester are June through August, with an average maximum UV index of 6.
• Springfield - August »
  In Springfield during August, the rain falls for 5.3 days and regularly aggregates up to 0.31" (8mm) of precipitation. July and August, with an average of 10.4h of sunshine, are months with the most sunshine in Springfield.
• Lowell - August »
  August perpetuates the summer climate in Lowell, with warm temperatures and extended sunshine hours. August has the most sunshine of the year in Lowell with an average of 10.6h of sunshine.
• Cambridge - August »
  In Cambridge in August, it is raining for 7.9 days, with typically 0.39" (10mm) of accumulated precipitation. In August, in Cambridge the rain falls for 7.9 days.
• New Bedford - August »
  With an average ocean temperature of 68.5°F (20.3°C), August is the month with the warmest seawater in New Bedford, Massachusetts. In New Bedford, in August, the average water temperature is 68.5°F (20.3°C).
• Brockton - August »
  The month with the most sunshine in Brockton is August, with an average of 10.2h of sunshine. The month with the most sunshine in Brockton is August, with an average of 10.2h of sunshine.
• Quincy - August »
  In Quincy in August, it is raining for 8.2 days, with typically 0.47" (12mm) of accumulated precipitation. On the first day of August in Quincy, Massachusetts, sunrise is at 5:36 am and sunset at 8:03 pm.
• Lynn - August »
  With an average ocean temperature of 67.6°F (19.8°C), August is the month with the warmest seawater in Lynn, Massachusetts. August is the month with the warmest seawater in Lynn, with an average ocean temperature of 67.6°F (19.8°C).
• Fall River - August »
  August is the month with the warmest seawater in Fall River, with an average ocean temperature of 69.3°F (20.7°C). June through August, with an average maximum UV index of 6, are months with the highest UV index in Fall River, Massachusetts.
• Newton - August »
  Though mirroring its predecessor in many aspects, August in Newton does hint at a subtle toning down of the summer heat. In Newton, during August, the rain falls for 7.8 days and regularly aggregates up to 0.43" (11mm) of precipitation.
• Lawrence - August »
  On the first day of August in Lawrence sunrise is at 5:36 am and sunset at 8:05 pm. In Lawrence, Massachusetts, in August, it is raining for 12.8 days, with typically 1.85" (47mm) of accumulated precipitation.