Arch Cape Weather in September

With daytime temperatures of 20°C (68°F) and nighttime lows of 10°C (50°F), September in Arch Cape brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 124 mm (4.9 in) falls on average.

Rainfall in Arch Cape in September

Historically, approximately 11 days this month are expected to have rain, averaging 124 mm (4.9 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Arch Cape in September

Expect highs of 20°C (68°F) in Arch Cape in September, with nights dropping to around 10°C (50°F). This month falls in the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 10°C (50°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Arch Cape in September

The month enjoys around 236 hours of sunshine, creating mostly sunny days with good weather conditions.

If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
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For a detailed overview over the year and the best time to visit the United States of America, check out our Arch Cape's climate page.

Arch Cape Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 37%  

Precipitation 124 mm (4.9 in)  

Rainy days 11 days  

Sunshine 236 hours *  

Percentage Sunshine *  

* Data from: Astoria, the United States of America (41 KM, 25 Miles).

What to Wear in Arch Cape in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Arch Cape in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Arch Cape's climate page.

More climate data for Arch Cape

Temperature Rainfall Sunshine

See the full Arch Cape climate overview or explore weather in the United States of America.