Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Olympic National Park Weather in September
Olympic National Park in September sees moderate daytime temperatures of 16°C (61°F) and nighttime lows of 7°C (45°F). Moderate rainfall is typical, with around 52 mm (2 in) for the month.
Rainfall in Olympic National Park in September
This month experiences about 12 days of rain according to historical data, averaging 52 mm (2 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Olympic National Park in September
Temperatures in Olympic National Park in September top out at 16°C (61°F) and drop to 7°C (45°F) overnight. September is part of the summer season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Olympic National Park in September
Expect a lot of sunshine this month, with about 204 hours of sun. These sunny conditions add to the overall experience.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Olympic National Park.
Olympic National Park Temperature in September
Min Temperature
7°C (45°F)
Max Temperature
16°C (61°F)
Chance of Rain
39%
Precipitation
52 mm (2 in)
Rainy days
12 days
Humidity
60% *
Sunshine
204 hours *
Percentage Sunshine
54% *
* Data from: Victoria, Canada (52 KM, 32 Miles).
Olympic National Park Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Olympic National Park - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Olympic National Park in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Olympic National Park in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Olympic National Park 3-Day Forecast
More climate data for Olympic National Park
Temperature Rainfall Sunshine Humidity
See the full Olympic National Park climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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Yosemite National Park is definitely worth a visit
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