nomadseason

October Weather in Bellevue, United States

Last updated: June 24, 2025

In October, the average temperature in Bellevue, United States hovers around 11°C (53°F). Expect a wide temperature range, with minimums dipping to -7°C (20°F) and maximums reaching up to 32°C (90°F). The area experiences about 126 mm (4.9 in) of precipitation spread over 9 days, contributing to a relatively high average humidity of 75%.

October Temperature in Bellevue

In October in Bellevue, the average temperature is 11°C (53°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -7°C (20°F). Be prepared for a wide range of weather conditions when traveling during this time.

October Weather in Bellevue: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Bellevue, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bellevue, October typically has an average temperature of 11°C (53°F), with highs reaching up to 32°C (90°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec252541506376787569534031
Data source: Temperature data for Bellevue generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Bellevue

In Bellevue in October, the total precipitation amount is 126 mm (4.9 in) spread over a duration of 9 days.

October Precipitation Trends in Bellevue

The chart displays monthly precipitation patterns in Bellevue, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Bellevue, October typically receives around 126 mm (4.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec3332975715213375103841263138
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Bellevue

In Bellevue in October humidity is 75%. With an average temperature of 11°C (53°F), this humidity feels like a cool, damp embrace that can make exploring the area feel more challenging, as you constantly contend with the moisture in the air while trying to enjoy your travels.

October Average Humidity in Bellevue

This chart illustrates the average monthly humidity levels in Bellevue, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Bellevue is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%73%75%78%82%83%81%75%75%82%83%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Bellevue

In Bellevue in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bellevue, you can refer to this Hourly UV Index in Bellevue.

Maximum UV Index Levels in Bellevue for October

The chart shows the monthly maximum UV Index (UVI) for Bellevue in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Bellevue typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Bellevue October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Bellevue Compares to Other Months

Weather in Bellevue varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Bellevue, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bellevue, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)33 mm (1.3 inches)76%moderate
February Weather-4°C (26°F)32 mm (1.3 inches)80%moderate
March Weather5°C (41°F)97 mm (3.8 inches)73%high
April Weather10°C (50°F)57 mm (2.2 inches)74%very high
May Weather17°C (63°F)152 mm (6.0 inches)78%very high
June Weather24°C (76°F)133 mm (5.2 inches)82%very high
July Weather25°C (78°F)75 mm (2.9 inches)83%very high
August Weather24°C (75°F)103 mm (4.1 inches)80%very high
September Weather21°C (70°F)84 mm (3.3 inches)75%very high
October Weather11°C (53°F)126 mm (4.9 inches)75%high
November Weather4°C (40°F)31 mm (1.2 inches)82%moderate
December Weather0°C (31°F)38 mm (1.5 inches)83%low

Compare Bellevue's Climate with Cities Worldwide