Port Townsend weather in September 2026

Expect daytime maximum temperatures of 68°F in Port Townsend, Washington State in September based on long-term weather averages. There are 7 hours of sunshine per day on average.

  • 68°F maximum daytime temperature in September in Port Townsend68
    68°F max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Port Townsend9
    9 days with some rainfall
  • 50°F minimum night-time temperature in September in Port Townsend50
    50°F min night temperature
  • 13 hours of daylight per day in September in Port Townsend13
    13 hours of daylight per day
  • No heat & humidity in September in Port Townsend0
    No heat & humidity
  • 1.3 inches monthly rainfall in September in Port Townsend1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Port Townsend5
    5 (Moderate) UV index
  • 54°F sea temperature in September in Port Townsend54
    54°F sea temperature

More about Port Townsend

Port Townsend by month

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

Recommended for Washington State

Virgin Holidays: £100 off Walt Disney World resort

  • Save £100 per room at Walt Disney World Resort 2026 stays
  • Enjoy 14 day park tickets for the price of 7. Use promo code
  • Travel between 7th Jan & 19th Dec 2026 (inclusive)
Show discount codeShow discount code ******ING
Redeem Virgin Holidays discount code >>

Expires at 23:59 on Wednesday 5th Nov 2025 · View all Virgin Holidays offers

The September weather guide for Washington State (Port Townsend) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about the USA

How hot is it in Port Townsend in September?

Daytime temperatures usually reach 70°F in Port Townsend in September, falling to 52°F at night.

How sunny is it in Port Townsend in September?

There are normally 7 hours of bright sunshine each day in Port Townsend in September - that's 57% of daylight hours.

Does it rain in Port Townsend in September?

There are usually 9 days with some rain in Port Townsend in September and the average monthly rainfall is 1.9 inches.

Port Townsend September sunrise & sunset times

Browse the sunrise and sunset times for Port Townsend in September 2026. Select a month to view Port Townsend sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 05:29 18:52
Tuesday, 15th September 2026 05:48 18:23
Wednesday, 30th September 2026 06:09 17:52

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^