Copalis Beach Weather in September

September in Copalis Beach typically sees daytime highs of 20°C (68°F) and nighttime lows of 10°C (50°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.

Rainfall in Copalis Beach in September

Typically, about 13 days will experience rainfall, with an average of 87 mm (3.4 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Copalis Beach in September

September is a excellent month in Copalis Beach, with 20°C (68°F) during the day and 10°C (50°F) at night. September marks the summer season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Copalis Beach.

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 Copalis Beach's climate page.

Copalis Beach Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 43%  

Precipitation 87 mm (3.4 in)  

Rainy days 13 days  

What to Wear in Copalis Beach 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.

What To Do in Copalis Beach 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 Copalis Beach's climate page.

More climate data for Copalis Beach

Temperature Rainfall

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