October Weather in Vashon, United States

Last updated: June 24, 2025

In October, the average temperature in Vashon, United States hovers around 12°C (53°F), with daytime highs reaching a pleasant 23°C (73°F) and dropping to a cooler 1°C (34°F) at night. Expect 128 mm (5.0 in) of precipitation spread over 16 days, contributing to an average humidity level of 83%. Whether you’re exploring or enjoying a cozy indoor retreat, be prepared for the variability this month brings!

October Temperature in Vashon

In October in Vashon, the average temperature is 12°C (53°F). Maximums can reach 23°C (73°F), while minimums can drop as low as 1°C (34°F). It's a great time to explore Vashon, so pack for a range of temperatures and enjoy the mild weather!

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

The chart illustrates October temperature patterns in Vashon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vashon, October typically has an average temperature of 12°C (53°F), with highs reaching up to 23°C (73°F) and lows dropping to around 1°C (34°F).

Data source: Temperature data for Vashon generated using information from the Copernicus Climate Change Service.

October Precipitation in Vashon

In Vashon in October, the precipitation amount is 128 mm (5.0 in) spread over 16 days.

October Precipitation Trends in Vashon

The chart displays monthly precipitation patterns in Vashon, 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 Vashon, October typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Vashon

In Vashon in October humidity is 83%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and necessitating layers to stay comfortable while traveling.

October Average Humidity in Vashon

This chart illustrates the average monthly humidity levels in Vashon, 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 Vashon is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Vashon

In Vashon in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Vashon.

Maximum UV Index Levels in Vashon for October

The chart shows the monthly maximum UV Index (UVI) for Vashon 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 Vashon typically reaches 5, which falls under the moderate exposure category.

Data source: Vashon 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 Vashon Compares to Other Months

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

This table compares monthly weather conditions in Vashon, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	160 mm (6.3 inches)	86%	low
February Weather	5°C (42°F)	142 mm (5.6 inches)	84%	moderate
March Weather	8°C (46°F)	109 mm (4.3 inches)	85%	moderate
April Weather	10°C (50°F)	97 mm (3.8 inches)	83%	high
May Weather	14°C (57°F)	60 mm (2.4 inches)	84%	very high
June Weather	17°C (62°F)	55 mm (2.2 inches)	84%	very high
July Weather	20°C (67°F)	17 mm (0.7 inches)	82%	very high
August Weather	20°C (68°F)	17 mm (0.7 inches)	73%	very high
September Weather	17°C (63°F)	84 mm (3.3 inches)	74%	high
October Weather	12°C (53°F)	128 mm (5.0 inches)	83%	moderate
November Weather	9°C (48°F)	161 mm (6.3 inches)	86%	low
December Weather	6°C (43°F)	177 mm (7.0 inches)	87%	low