Cool
Average highs are around 16°C, so pack for cooler days.
September verdict
Olympic National Park, United States in September
Weather score25Poor
Poor for holiday weather
Average highs are around 16°C, so pack for cooler days. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 133mm, so some wet days are possible.
September weather
Monthly averages
Temp
16°C
Rain
133mm
Sun
6h
Sea
14°C
Weather score
25
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 133mm, so some wet days are possible.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Olympic National Park, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September16°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
September133mm average rain
September sits on the drier side of Olympic National Park's year, which helps with sightseeing and transfers.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6 hours average sun
September sits close to Olympic National Park's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September14°C average sea
September is one of Olympic National Park's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to October
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
September25 weather score
September sits close to Olympic National Park's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels near Olympic National Park, United States
Marriott
Fairfield Inn & Suites Seattle PoulsboPoulsbo, Washington, USA
Fairfield Inn & Suites Seattle BremertonBremerton, Washington, USA
TownePlace Suites by Marriott OlympiaOlympia, Washington, USA
Courtyard OlympiaOlympia, Washington, USA
Courtyard Seattle NorthgateSeattle, Washington, USA
TownePlace Suites by Marriott TumwaterTumwater, Washington, USA