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Normal weather for Friday Harbor in August

It's warm in August in Friday Harbor with an average temperature of 24°C. Temperatures this month range from a low of 22°C to a high of 27°C. At night, you can expect temperatures between 10°C and 13°C.

According to weather history, there is only 9,5 mm of precipitation in August. The wind speed is around 3 Bft, mostly coming from the South.

Friday Harbor in August

New York
Temperature Average Temperature
24°C 30°C
Sun High Temp
27°C 31°C
Sun Low Temp
22°C 28°C
Rain Total Precipitation
9,5 mm 79 mm
Rain Rainy Days
2 days 13 days

Start of August

The month of August starts in Friday Harbor with warm temps, averaging around 25°C during the day and nights around 12°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.

With the temperature difference between day and night, it’s smart to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

Mid August

By mid-August, daytime temps drop to around 24°C, with nights around 12°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

Since it cools down at night, it’s a good idea to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

End of August

By the end of August, the average daytime temperature in Friday Harbor is around 24°C, while nighttime temps are about 12°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

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UV index

The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Is August a good time to visit Friday Harbor?

Looking for great weather? August is a good time to be in Friday Harbor. The temperatures are nice, and there’s not too much rain.

Temperature records for Friday Harbor in August

Check out the climate of Friday Harbor for all months and discover the best travel time

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Daily Temperature in August in Friday Harbor

This chart shows the average daily high and low temperatures in August for Friday Harbor, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in August in Friday Harbor

Daily Precipitation in August in Friday Harbor

The chart below shows the average daily precipitation in August for Friday Harbor, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 2 days of precipitation in Friday Harbor.

Daily Precipitation in August in Friday Harbor

Daily UV Index in August in Friday Harbor

This chart shows the average daily UV index in August in Friday Harbor, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Daily UV Index in August in Friday Harbor

Temperature in August in Friday Harbor Over the Years

This chart shows the average temperature in August in Friday Harbor, measured in degrees Celsius, over the past few years.

Temperature in August in Friday Harbor Over the Years

Total Precipitation in August in Friday Harbor Over the Years

This chart shows the average precipitation in August in Friday Harbor, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in August in Friday Harbor Over the Years

Daily Climate in August for Friday Harbor

Click on any day in August to get detailed info about the usual weather on that day in Friday Harbor. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in August in Friday Harbor

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Average Weather in Friday Harbor by Month

Click on a month below to see detailed weather info for Friday Harbor. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Friday Harbor for all months at once

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