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Seattle, USA · Temperate oceanic

Seattle in October: go or not?

Tough period. Seattle in October only reaches 4.3/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 47.61°N · 122.33°W
⚡ This month's verdict
Avoid
Seattle · October
4.3
9–15°
Temperature
35%
Rain
5h
Sun
🌊 Seaside☀️ Bright🍴 Gastronomy
Photo : Erin Hervey via Unsplash
The month in detail

What to expect in October

Autumn marks the end of peak season in Seattle. Temperatures drop (15°C) and rain returns (35% of days). Expect rain on 35% of days — a light raincoat in the bag is recommended.

October ranks 6 out of 12 months in Seattle. Compared to September: −5°C daytime, 11 pts more rainy days, −2.8h of sun per day.

This month's conditions

What it's like in October

UV index
3 · low
no protection needed
Feels like
dry air
8°
Daylight
10.6h of daylight
Air quality
good
AQI 22
Compare

Is October the right month?

The best month in Seattle is July (8.9/10), 4.6 pts higher than October.

See July →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Seattle

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.

Country · USA

🗣️LanguageEnglish
💶CurrencyUS Dollar ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘExpensive · 4/5

🌡️ Climate

🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 24°C
❄️Coolest monthJanuary · 8°C
🌧️Rainiest month ⓘDecember · 46%

🏖️ Beach holiday

📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Location

Where is Seattle ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
USA
Temperate oceanic climate with a 8.9 → 0.8 gap between best and worst month. 10 years of ERA5 data to choose by project.
47.61°N · 122.33°W
Questions

Frequently asked questions

What is the best time to visit Seattle?
July is the best month with 24.0°C highs, 14.0°C lows, 10.1h of sunshine and 9.0% rainy days. The months of July & August offer comparable conditions.
How many hours of sunshine does Seattle get in July?
Seattle averages 10.1 sunshine hours per day in July. It is the sunniest month with a climate score of 8.5/10.
What is the rainiest month in Seattle?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Seattle in July?
In July, overnight lows reach 14.0°C, while afternoon highs average 24.0°C.
Is Seattle good in winter?
In winter (December-February), Seattle scores 0.9/10 on average — Difficult period — prefer the peak season.. The best month overall remains July with a score of 8.5/10.
When should you avoid Seattle?
January is the most difficult month to visit Seattle, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Seattle in October?
The average UV index reaches 3 in October in Seattle (low), with about 10.6h of daylight. No protection needed.