Bellevue Weather & Climate: Best Time to Visit

Visitors to Bellevue can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 25°C (77°F) in July to a chilly 6°C (43°F) in the coolest month, January.

Nights vary from 14°C (57°F) in July to around -2°C (28°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Bellevue is known for its substantial rain/snowfall, with annual precipitation reaching 1538 mm (61 in). Precipitation levels in Bellevue remain relatively steady throughout the year. May has the most rain, with 148 mm (5.8 in) over 16 days. In the driest month March, this drops slightly to 117 mm (4.6 in), making the city's climate fairly predictable. For more details, please visit our Bellevue Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Bellevue serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.9 hours of sunshine daily, and embrace the darker days in December, offering only 1.6 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The mean water temperature over the year ranges from 6°C (43°F) in January to 23°C (73°F) in August.

Water temperature over the year

The relative humidity is high throughout the year in Bellevue.

The city experiences its highest humidity in December, reaching 82%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year