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November Weather in Sammamish, United States

Last updated: June 24, 2025

In November, the average temperature in Sammamish, United States is a brisk 7°C (45°F), with fluctuations ranging from a chilly -4°C (26°F) to a milder 17°C (63°F). Expect 238 mm (9.4 in) of precipitation over approximately 19 days, contributing to the region’s high average humidity of 89%. Be prepared for a damp, cool atmosphere that defines this vibrant month!

November Temperature in Sammamish

In November in Sammamish, the average temperature is 7°C (45°F). Maximums can reach 17°C (63°F), and minimums can drop as low as -4°C (26°F). Be prepared for a mix of mild and chilly weather during your travels.

November Weather in Sammamish: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Sammamish, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sammamish, November typically has an average temperature of 7°C (45°F), with highs reaching up to 17°C (63°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec413944495560646559504540
Data source: Temperature data for Sammamish generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

November Precipitation in Sammamish

In Sammamish in November, the precipitation amount is 238 mm (9.4 in) over a span of 19 days.

November Precipitation Trends in Sammamish

The chart displays monthly precipitation patterns in Sammamish, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Sammamish, November typically receives around 238 mm (9.4 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec21524216715494883427124220239248
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Sammamish

In Sammamish in November, humidity is 89%. With an average temperature of 7°C (45°F), this humidity feels like stepping into a damp cloud, making traveling quite uncomfortable as the moisture clings to your skin and clothes, turning even mild activity into a sweaty ordeal.

November Average Humidity in Sammamish

This chart illustrates the average monthly humidity levels in Sammamish, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Sammamish is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Sammamish

In Sammamish in November, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Sammamish, you can visit Hourly UV Index in Sammamish.

Maximum UV Index Levels in Sammamish for November

The chart shows the monthly maximum UV Index (UVI) for Sammamish in November, 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 November, the maximum UV index in Sammamish typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987522
Data source: Sammamish November 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 November Weather in Sammamish Compares to Other Months

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

This table compares monthly weather conditions in Sammamish, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)215 mm (8.5 inches)86%low
February Weather4°C (39°F)242 mm (9.5 inches)86%moderate
March Weather7°C (44°F)167 mm (6.6 inches)87%moderate
April Weather9°C (49°F)154 mm (6.1 inches)84%high
May Weather13°C (56°F)94 mm (3.7 inches)81%very high
June Weather16°C (60°F)88 mm (3.5 inches)82%very high
July Weather18°C (65°F)33 mm (1.3 inches)79%very high
August Weather18°C (65°F)27 mm (1.0 inches)63%very high
September Weather15°C (60°F)124 mm (4.9 inches)62%high
October Weather10°C (50°F)220 mm (8.7 inches)83%moderate
November Weather7°C (45°F)238 mm (9.4 inches)89%low
December Weather4°C (40°F)248 mm (9.8 inches)88%low

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