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Lopez Island weather in September (United States of America)

Planning a trip to Lopez Island in September? Here's what the weather might have in store during this month.

In Lopez Island the weather in September is generally perfect, characterized by pleasant temperatures and moderate rainfall. September falls within the summer season. Daytime temperatures hover around 20°C, while nights can cool down to about 9°C.

Lopez Island in September usually receives moderate rainfall, averaging around 38 mm for the month. Based on our climate data of the past 30 years, about 11 days of rain are anticipated.

The days are predominantly sunny, with an estimated total of around 202 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Lopez Island. June, July, August and September typically offer the best circumstances. While January, February, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Lopez Island climate page with graphs.

 

Lopez Island, monthly averages in September

Min TemperatureMin Temperature 9°C  
Max TemperatureMax Temperature 20°C  
Chance of RainChance of Rain 36%  
PrecipitationPrecipitation 38 mm  
Rainy daysRainy days 11 days  
SunshineSunshine 202 hours *  
Percentage SunshinePercentage Sunshine 55% *  
* Data from: Friday Harbor, the United States of America (10 KM, 6 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Lopez Island in September?

For visitors traveling to Lopez Island, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Cycling
10/10
Walking
10/10
Camping
5/10
Outdoor sports
10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Lopez Island.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.