Average Monthly Sunshine in Gustavus (AK)

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

Monthly hours of sunshine

Sunshine in Gustavus varies greatly throughout the year. The sunniest month, May, reaches an impressive 230 hours, while December, the darkest month, offers only 43 hours. The total annual amount of sun is 1523 hours.

Daily hours of sunshine

Summer days are longer and more sunny, with daily sunshine hours peaking at 7.7 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.4 hours.

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

Gustavus enjoys an average of 1523 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.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast, dark winter and rainy skies.

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

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

Other climate information

October, Gustavus’s wettest month, receives 266 mm of rainfall and has a maximum daytime temperature of 8°C. During the driest month June you can expect a temperature of 13°C.

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