Weatheo

Bellevue Weather by Month

Average temperatures, rainfall and humidity for Bellevue, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Bellevue month looks like before you travel — then check the live Bellevue forecast for the days ahead.

Warmest month

July

26°C average high

Coolest month

February

3°C average low

Wettest month

December

136 mm of rain

Driest month

July

15 mm of rain

Average temperature and rainfall in Bellevue by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January8°C3°C-10°C / 16°C
119 mm
85%10 km/h
February9°C3°C-10°C / 18°C
104 mm
82%11 km/h
March12°C5°C-2°C / 26°C
100 mm
78%11 km/h
April15°C6°C0°C / 31°C
76 mm
71%12 km/h
May20°C10°C4°C / 31°C
50 mm
70%10 km/h
June23°C12°C6°C / 42°C
43 mm
67%10 km/h
July26°C14°C9°C / 35°C
15 mm
65%9 km/h
August26°C14°C9°C / 35°C
38 mm
68%9 km/h
September22°C12°C4°C / 32°C
87 mm
74%9 km/h
October16°C8°C-1°C / 30°C
123 mm
82%10 km/h
November11°C5°C-5°C / 21°C
115 mm
84%11 km/h
December8°C3°C-9°C / 15°C
136 mm
86%11 km/h

Best time to visit Bellevue

The most comfortable time to visit Bellevue is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around December, totalling about 1,007 mm a year.

Travellers who prefer heat should aim for July, when highs average 26°C. December is the month to avoid if rain would spoil your plans — it averages 136 mm, roughly 9× the rainfall of the driest month (July).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Bellevue forecast for what is happening now.

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