August weather forecastSunriver, OR
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Sunriver, Oregon, with an average temperature ranging between min 52.2°F (11.2°C) and max 78.8°F (26°C).Temperature
With August's arrival, Sunriver's weather records an average high-temperature of a still warm 78.8°F (26°C), marking little difference from July's 79.5°F (26.4°C). During the nights in August, Sunriver records a pronounced shift from the daytime warmth, with a consistent average temperature of 52.2°F (11.2°C).Humidity
The average relative humidity in August is 49%.Rainfall
In August, the rain falls for 5.4 days. Throughout August, 0.55" (14mm) of precipitation is accumulated. In Sunriver, Oregon, during the entire year, the rain falls for 107.1 days and collects up to 12.17" (309mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
In August, the average length of the day is 13h and 56min.On the first day of August, sunrise is at 5:55 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:42 pm PDT.
Sunshine
In August, the average sunshine is 11.9h.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In August, a daily UV index of 5 turns into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sunriver, OR
- Average high temperature in August: 78.8°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in August: 52.2°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure in August
Sunriver, OR
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in August
Sunriver, OR
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Sunriver, OR
- Average humidity in August: 49%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (48%).
Average rainfall in August
Sunriver, OR
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in August
Sunriver, OR
- Average rainfall days in August: 5.4 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in August
Sunriver, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.65").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Sunriver, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (9.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Sunriver, OR
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in August
Sunriver, OR
- Average sunshine days in August: 23.3 days
The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in August
Sunriver, OR
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Sunriver, OR
- Average cloud cover in August: 11
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in August
Sunriver, OR
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
