August weather forecast
Maine, USA

August in Maine represents the closing chapter of summer, carrying forward the warmth of July but introducing hints of the approaching autumn. Nighttime temperatures typically find comfort in the mid to upper 50s°F, while daytime highs average in the mid-70s°F. However, there are days when temperatures can peak in the lower 80s°F, especially during the first half of the month.

Seaside locales like Portland and Camden are treated to the moderated climate of the Atlantic, resulting in balmy days and cooler evenings. In contrast, the interior regions, including Lewiston and Houlton, might face slightly warmer daytime conditions but are graced with cooler nights, making for comfortable sleeping conditions.

August is a month of transition, and this is evident in Maine's landscape. While the majority of the state still revels in the lushness of summer, hints of autumn begin to surface, especially towards the end of the month. Early fall foliage starts to pepper the forests, introducing splashes of red and orange amidst the predominant green.

Beaches continue to be popular, with many seizing the last opportunities for summer swimming and sunbathing. The ocean water, having warmed over the course of the summer, is at its most inviting temperature. Yet, as the month advances, the evenings get cooler, prompting campfires and layers during nighttime activities.

Rain showers in August are sporadic, usually manifesting as brief, heavy downpours followed by clear skies. Thunderstorms, though less frequent than in July, can still make an appearance.

As August wanes and September emerges on the calendar, Maine prepares for the full spectacle of fall - a season of vibrant colors, crisp air, and harvest celebrations. The gradual temperature dip signifies the nearing end of summer activities and the beginning of autumnal festivities.

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• Portland - August »
  The month with the most sunshine in Portland, Maine, is August, with an average of 10.7h of sunshine. On the first day of August in Portland sunrise is at 5:30 am and sunset at 8:04 pm.
• Lewiston - August »
  In Lewiston in August, it is raining for 11.1 days, with typically 1.34" of accumulated precipitation. In Lewiston, in August, it is raining for 11.1 days, with typically 1.34" of accumulated precipitation.
• Bangor - August »
  As August unfolds in Bangor the average high-temperature reaches a still moderately hot 76.6°F, hinting at a slight fluctuation from the previous month. In Bangor in August, during 13.6 rainfall days, 2.09" of precipitation is typically accumulated.
• South Portland - August »
  August in South Portland begins with an average high-temperature of a still pleasant 72.3°F, reflecting close similarity to the preceding month. In South Portland the average seawater temperature in August is 63.9°F.
• Auburn - August »
  In Auburn in August, during 11.1 rainfall days, 1.34" of precipitation is typically accumulated. With an average of 10.1h of sunshine, August has the most sunshine of the year in Auburn, Maine.
• Biddeford - August »
  With an average maximum UV index of 6, August is the month with the highest UV index in Biddeford, Maine. In Biddeford, in August, during 12.1 rainfall days, 2.13" of precipitation is typically accumulated.
• Sanford - August »
  On the first day of August in Sanford sunrise is at 5:32 am and sunset at 8:06 pm. In Sanford in August, it is raining for 11.4 days, with typically 1.22" of accumulated precipitation.
• Brunswick - August »
  In Brunswick in August, during 11.3 rainfall days, 1.54" of precipitation is typically accumulated. August in Brunswick continues the warmth of July, with equal high temperatures and insignificant changes in humidity.
• Scarborough - August »
  June through August, with an average maximum UV index of 5, are months with the highest UV index in Scarborough, Maine. Scarborough records the warmest temperatures in August, averaging a high of 73.9°F and a low of 60.8°F.
• Saco - August »
  With an average maximum UV index of 6, August is the month with the highest UV index in Saco, Maine. The average high-temperature in Saco during August is a still warm 74.1°F, almost matching the conditions of the preceding month.
• Augusta - August »
  On the first day of August in Augusta sunrise is at 5:26 am and sunset at 8:04 pm. The average sunshine duration in August in Augusta, Maine, is 10.1h.
• Westbrook - August »
  The month of August, characterized by an average high of 73.9°F and a low of 60.8°F, is recognized as the warmest in Westbrook, Maine. August, with its average high-temperature of 73.9°F and an average low-temperature of 60.8°F, holds the record as the warmest month in Westbrook.