Last updated: June 24, 2025
In Bellevue, United States, the average temperature in August hovers around 22°C (72°F), with a comfortable range that can dip to a minimum of 11°C (53°F) and soar to a maximum of 34°C (93°F). Expect about 103 mm (4.0 in) of precipitation spread over 10 days, contributing to an average humidity level of 69%. Stay prepared for a blend of warmth and occasional showers!
In August in Bellevue, the average temperature is 22°C (72°F), with maximums that can reach 34°C (93°F) and minimums that can drop as low as 11°C (53°F). This makes it an ideal time for travelers to enjoy a comfortable climate while exploring the vibrant culture and stunning landscapes of Bellevue.
In Bellevue in August, the precipitation amount is 103 mm (4.0 in) over a span of 10 days.
In Bellevue in August, humidity is 69%. With an average temperature of 22°C (72°F), this humidity feels like a warm, enveloping blanket, making travel feel sticky and slightly oppressive, yet also invigorating as the air is thick with the scent of blooming flora and vibrant surroundings.
In Bellevue in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Bellevue.
UV Risk Categories
Weather in Bellevue varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Bellevue, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 52 mm (2.1 inches) | 84% | moderate |
| February Weather | -5°C (24°F) | 59 mm (2.3 inches) | 85% | moderate |
| March Weather | 3°C (38°F) | 69 mm (2.7 inches) | 84% | high |
| April Weather | 9°C (48°F) | 91 mm (3.6 inches) | 83% | very high |
| May Weather | 16°C (61°F) | 150 mm (5.9 inches) | 75% | very high |
| June Weather | 22°C (72°F) | 129 mm (5.1 inches) | 79% | very high |
| July Weather | 24°C (76°F) | 78 mm (3.1 inches) | 75% | very high |
| August Weather | 22°C (72°F) | 103 mm (4.0 inches) | 69% | very high |
| September Weather | 19°C (67°F) | 116 mm (4.6 inches) | 74% | very high |
| October Weather | 11°C (52°F) | 115 mm (4.5 inches) | 79% | moderate |
| November Weather | 3°C (37°F) | 47 mm (1.8 inches) | 88% | moderate |
| December Weather | -1°C (31°F) | 45 mm (1.8 inches) | 82% | low |