Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Temperature records mark August as the warmest month, with highs averaging 80.8°F (27.1°C) and lows at 47.8°F (8.8°C).Heat index
August's mean heat index is estimated at 84.2°F (29°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
The months with the lowest humidity in Roseburg are July and August, with an average relative humidity of 71%.Rainfall
In Roseburg, in August, it is raining for 3.1 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Roseburg, Oregon, there are 105 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Snowfall
In Roseburg, snow does not fall in April through October.Daylight
In Roseburg, the average length of the day in August is 13h and 53min.On the first day of August, sunrise is at 6:04 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:49 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 11.2h of sunshine.UV index
The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What are August temperatures?
What are the least humid months in Roseburg?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What is the average length of the day in August?
When are sunrise and sunset in August?
What month has the most sunshine?
How many hours of sunshine does Roseburg have in August?
What is the UV index intensity in August?
Average temperature in August
Roseburg, OR
- Average high temperature in August: 80.8°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (45.9°F).
- Average low temperature in August: 47.8°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in August
Roseburg, OR
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in August
Roseburg, OR
- Average wind speed in August: 3.3mph
The windiest months (with the highest average wind speed) are January and March (3.9mph).
The calmest months (with the lowest average wind speed) are September and October (3.2mph).
Average humidity in August
Roseburg, OR
- Average humidity in August: 71%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in August
Roseburg, OR
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is December (1.46").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in August
Roseburg, OR
- Average rainfall days in August: 3.1 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (3.1 days).
Average snowfall in August
Roseburg, OR
- Average snowfall in August: 0"
The month with the highest snowfall is November (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Roseburg, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Roseburg, OR
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 11h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in August
Roseburg, OR
- Average sunshine days in August: 25.1 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in August
Roseburg, 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, November and December (UV index 2).
Average cloud cover in August
Roseburg, OR
- Average cloud cover in August: 26
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Roseburg, OR
- Average visibility in August: 5mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).
Roseburg, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location