Climate Insights for Bellevue

The climate in Bellevue is cool. The average annual temperature is 5°C and approximately 489mm of precipitation falls per year. Dicembre is the wettest month, receiving around 67mm of rainfall. Bellevue is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Dicembre, Gennaio, Febbraio, when temperatures can drop to -11°C. Bellevue experiences heavy snowfall, typically from January through December.

Bellevue has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is Luglio, when average highs reach 28°C and the mean temperature sits around 19°C. The coldest month is Dicembre, when overnight lows fall to -11°C and the daily average is -7°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.

Bellevue is a relatively dry area, receiving approximately 489mm of precipitation annually, which averages out to around 41mm per month. The wettest month is December, averaging 67mm of rainfall. February and January also tend to see above-average precipitation. The driest month is July, with just 8mm. That's 60mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Bellevue receives heavy snowfall, accumulating around 209cm annually from January through December. The snowiest month is December, with approximately 48cm. Winter travel should account for significant snow cover.

Bellevue is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 10km/h in winter, 13km/h in spring, 15km/h in summer, 12km/h in autumn.

It is currently winter in Bellevue, which began on December 21, 2026. Bellevue is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Luglio at around 28°C, while the coldest stretch bottoms out in Dicembre near -11°C. Spring is next, beginning on March 20, 2026 — 2 days from now.

The best time to visit Bellevue is during Luglio and Agosto, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 12mm per month. By contrast, Dicembre can be quite cold with temperatures dropping to -11°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Bellevue based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.