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Recommended for Washington State

The weather guide for Washington State (Seattle) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

When is the best time to go to Seattle?

The best time to go to Seattle is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 7°C maximum daytime temperature in January in Seattle7
    Jan
  • 10°C maximum daytime temperature in February in Seattle10
    Feb
  • 12°C maximum daytime temperature in March in Seattle12
    Mar
  • 14°C maximum daytime temperature in April in Seattle14
    Apr
  • 18°C maximum daytime temperature in May in Seattle18
    May
  • 21°C maximum daytime temperature in June in Seattle21
    Jun
  • 24°C maximum daytime temperature in July in Seattle24
    Jul
  • 24°C maximum daytime temperature in August in Seattle24
    Aug
  • 21°C maximum daytime temperature in September in Seattle21
    Sep
  • 16°C maximum daytime temperature in October in Seattle16
    Oct
  • 11°C maximum daytime temperature in November in Seattle11
    Nov
  • 8°C maximum daytime temperature in December in Seattle8
    Dec

Hours of Sunshine (daily)

Best time to go for the weather

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the USA

Which is the hottest month in Seattle?

The hottest time of year in Seattle is normally July. Expect maximum daytime temperatures to reach 24°C.

Which month has the most rain in Seattle?

In terms of rainfall, December is usually the wettest month in Seattle with 151mm on average. There are normally 18 days in December with some rain.

When is it sunniest in Seattle?

The sunniest time of year in Seattle is normally July with bright sunshine on average for 64% of daylight hours; that's 10 hours of sunshine per day.

What is the flight time to Washington State from the UK?

The flight time to Washington State from the UK is typically 10 hours.

What is the time difference between Washington State and the UK?

The time difference between Washington State and the UK is GMT-8 hours.

What is the main language spoken in Washington State?

The main language spoken in Washington State is English.

Learn a language for Washington State with Busuu*, Lingoda* and Rocket Languages*.

What is the currency in Washington State?

The currency in Washington State is the US Dollar (USD).

Send money to Washington State with Monito*, Wise* and World Remit*.

Which plugs are used in Washington State?

Washington State uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in Washington State?

They drive on the right side of the road in Washington State.

Do you need a visa for Washington State?

Yes, UK passport holders do need a visa to enter Washington State.

Check USA visa requirements for all passport holders with VisaHQ* and iVisa.com*.

Compare Seattle weather with the USA

Below the Seattle weather chart shows average maximum daytime temperature for Seattle, Washington, USA and the USA (Washington).

Maximum daytime temperature (°C)

Seattle, Washington, USA
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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