Lake Oswego Weather in August

During August, Lake Oswego experiences high daytime temperatures of 28°C (82°F) and cooler nights around 14°C (57°F). As part of the summer season, minimal rainfall is to be expected.

Rainfall in Lake Oswego in August

You can typically expect 4 days of rain this month, averaging around 12 mm (0.5 in). Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in Lake Oswego in August

Weather in Lake Oswego is at its perfect in August. Highs reach 28°C (82°F), while nights settle around 14°C (57°F). Experience the summer season in August. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 14°C (57°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. On average, it is the warmest month of the year.

Sunshine in Lake Oswego in August

The city usually sees around 298 hours of sunlight, indicating many sunny days — a great month for sightseeing.

Wind Speed in Lake Oswego in August

August has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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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 Lake Oswego's climate page.

Lake Oswego Temperature in August

Min Temperature 14°C (57°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 13%  

Precipitation 12 mm (0.5 in)  

Rainy days 4 days  

Humidity 65% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 298 hours *  

Percentage Sunshine *  

* Data from: Portland, the United States of America (20 KM, 12 Miles).

What to Wear in Lake Oswego in August

Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Lake Oswego in August

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

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 Lake Oswego's climate page.

More climate data for Lake Oswego

Temperature Rainfall Sunshine Humidity Wind Speed

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