Average Monthly Sunshine in Portland (ME)

The graphs on this page shows the average number of hours per month and per day that Portland receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Sunshine in Portland varies greatly throughout the year. The sunniest month, July, reaches an impressive 278 hours, while December, the darkest month, offers only 140 hours. The total annual amount of sun is 2503 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.

Portland’s total hours of sunshine compared to other major cities

Portland enjoys an average of 2503 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

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

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.