Bothell (WA) Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Bothell, Washington State, United States of America. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

Sunshine in Bothell varies greatly throughout the year. The sunniest month, July, reaches an impressive 312 hours, while December, the darkest month, offers only 54 hours. The total annual amount of sun is 2171 hours.

Daily hours of sunshine

In Bothell, summer days are longer and more sunny, with daily sunshine hours peaking at 10.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.8 hours per day.

Average percent of sunshine

On average the sun shines 65% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 20%.

Bothell enjoys an average of 2171 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

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

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

November, Bothell’s wettest month, receives 27 mm (1.1 in) of rainfall and has a maximum daytime temperature of 11°C (52°F). During the driest month July you can expect a temperature of 25°C (77°F).

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