Portland (ME) Sunshine Hours by Month

To truly understand a climate, we must look at its sunshine. This page shows the total number of hours of direct sunlight per month and the average hours per day in Portland, Maine, United States of America. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

If you're visiting Portland, timing is key. In July, you can enjoy up to 278 hours of sunshine, while the shorter days of December provide just 140 hours. The total annual amount of sun is 2497 hours.

Daily hours of sunshine

For those who appreciate different seasons, Portland serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.3 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight.

Average percent of sunshine

On average the sun shines 62% of the time during the day in August, the highest percentage of any month. November has the lowest percentage at 48%.

Portland vs Major Cities: Sunshine Compared

Portland enjoys an average of 2497 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

Vancouver, Canada, receives approximately 1940 hours of sunshine annually.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

Related Climate Data for Portland

June, Portland’s wettest month, receives 121 mm (4.8 in) of rainfall and has a maximum daytime temperature of 22°C (72°F). During the driest month January you can expect a temperature of 0°C (32°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Portland Precipitation page.