Ilwaco Weather in September

With daytime temperatures of 18°C (64°F) and nighttime lows of 10°C (50°F), September in Ilwaco brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 75 mm (3 in) falls on average.

Rainfall in Ilwaco in September

Rain is expected on roughly 12 days, totalling around 75 mm (3 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Ilwaco in September

Ilwaco in September gets highs of 18°C (64°F) during the day and drops to 10°C (50°F) at night. This month falls in the summer season. Conditions are often most pleasant around the middle of the day. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Ilwaco 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 typically offers 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
• February
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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 Ilwaco's climate page.

Ilwaco Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 40%  

Precipitation 75 mm (3 in)  

Rainy days 12 days  

Sunshine 236 hours *  

Percentage Sunshine *  

* Data from: Astoria, the United States of America (21 KM, 13 Miles).

What to Wear in Ilwaco 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Ilwaco in September

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

Cycling

9/10

Walking

9/10

Camping

8/10

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 Ilwaco's climate page.

More climate data for Ilwaco

Temperature Rainfall Sunshine

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