Last updated: February 24, 2025
In August, Sunriver, United States, experiences a delightful summer climate characterized by a maximum temperature peaking at 36°C (98°F) and a comfortable average of 19°C (66°F). The minimum temperature can dip to 0°C (32°F), offering a refreshing contrast to the daytime heat. Visitors can expect light precipitation, with a total of 15 mm (0.6 in) spread across 4 days, while the humidity hovers around 60%, adding a touch of moisture to the warm air. This dynamic weather provides an ideal backdrop for outdoor activities amidst the stunning natural beauty of the region.
In August, Sunriver, United States, basks in the warmth of summer, showcasing impressive temperatures that encourage outdoor activities. With a minimum of 0°C (32°F) and an average of 19°C (66°F), the month offers a comfortable reprieve from the chill found earlier in the year. The mercury can soar to a maximum of 36°C (98°F), hinting at the peak of summer heat, which is quite a leap from the winter lows, making this month a vibrant time for both locals and visitors. Following the cooler spring months, August marks a stark contrast, solidifying its position as one of the warmest times of the year in Sunriver, perfectly suited for enjoying its beautiful landscapes and recreational activities.
In August, Sunriver experiences a slight uptick in precipitation, with 15 mm (0.6 in) of rain falling over about 4 days. This is a continuation of the minimal rainfall trend seen in the summer months, particularly after a notably dry July, which recorded only 10 mm (0.4 in) over just 2 days. The low summer precipitation levels, peaking with just a hint of moisture in August, contrast sharply with the heavier rainfall of early winter and fall months, where averages climb significantly, particularly in January (95 mm) and February (114 mm). As summer transitions into autumn, the gradual rise in precipitation hints at seasonal shifts, preparing the landscape for the wetter months ahead.
In August, Sunriver experiences a noticeable drop in humidity, with levels falling to 60%, a stark contrast to the high humidity found in the earlier months. This decline marks the transition from the peak summer season to the drier months that follow. Throughout the year, humidity remains consistently high from January to April, hovering around 87%, and gradually decreases as the temperatures rise into the summer. By September, humidity dips even further to 57%, indicating a clear trend towards a drier climate as autumn approaches. This seasonal fluctuation creates a comfortable atmosphere in August, ideal for outdoor activities while also hinting at the return to the moisture-laden months as the year progresses.
In August, Sunriver experiences a very high UV Index of 10, maintaining the intensity seen in the previous month of July. With a burn time of just 15 minutes, this peak summer month calls for heightened sun safety measures. Following the trend from earlier months, August's UV conditions highlight the importance of protection against harmful rays, especially for outdoor activities. This pattern, peaking in May and June with an extreme UV Index, gradually shifts to very high levels as summer wanes. For a detailed understanding of how sunlight impacts your time outdoors, check out the full report on the Sunriver UV Index.
UV Risk Categories
In August, Sunriver basks in a delightful 367 hours of sunshine, making it one of the sunniest months of the year. The trend shows a vibrant crescendo from the chilly 113 hours in January to the peak of 409 hours in July, illustrating a steady buildup of warmth and light as summer unfolds. As August winds down, sunlight remains abundant, providing a perfect backdrop for outdoor adventures. Following this, September brings a gentle decline to 299 hours, hinting at the transition into fall, yet still celebrating the lingering joys of summer. This annual rhythm of sunlit hours reflects Sunriver’s charm, inviting both locals and visitors to embrace its bright, welcoming atmosphere.
As August arrives in Sunriver, the likelihood of sunny weather remains particularly high, with a 75% chance of sunshine gracing the days. Following the peak in July, which boasts an impressive 82%, August continues to provide a delightful respite from the more unpredictable earlier months, where chances of sunny days fluctuate between 20% in January and 60% in April. As summer progresses, the trend clearly shows an upward trajectory in sunshine probabilities, making August a prime time for outdoor activities and relaxation under the sun. With the warmth lingering and the days still long, visitors and locals alike can savor the bright, sun-filled days that define this vibrant month in Sunriver.
In August, Sunriver, United States, enjoys about 13 hours of daylight, marking a gentle decline from the peak of 15 hours experienced in June and July. This month serves as a transitional period, hinting at the upcoming autumn as daylight gradually wanes. Following a consistent rise from just 9 hours in January, the length of daylight reaches its highest in summer before beginning to recede, with September decreasing to 12 hours. This natural ebb and flow reflects the shifting seasons, allowing residents and visitors to savor the lingering summer light while preparing for the cozy embrace of fall.
In Sunriver, United States, the month of August exhibits a gentle breeze with an average wind speed of 2.2 m/s (5 mph), reflecting a continuation of the summer's calm atmosphere. This marks a slight dip from July's peak of 2.0 m/s (4 mph), suggesting a subtle transition as the season begins to shift. Notably, the wind speeds gradually increase in the months leading up to winter, with October and December seeing a rebound to 2.9 m/s (7 mph) and 3.4 m/s (8 mph), respectively. Overall, the data indicates a summer lull in wind activity, paving the way for brisker winds as the year draws to a close, creating a dynamic interplay between the seasons.
The weather in Sunriver changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sunriver and find detailed weather information for every month.
August and January present stark contrasts in weather conditions. August boasts a warm climate with average temperatures around 19°C (66°F), peaking at a scorching 36°C (98°F), while only receiving minimal precipitation of 15 mm (0.6 in) over just four days. In contrast, January brings frigid temperatures, with an average of 0°C (32°F) and lows plunging to -23°C (-9°F), alongside significantly higher precipitation of 95 mm (3.7 in) across 13 days, contributing to a much more humid atmosphere at 87%. For a detailed look at January weather patterns, you can refer to Sunriver weather in January.
August and February present contrasting weather conditions. In August, temperatures range from a minimum of 0°C (32°F) to a maximum of 36°C (98°F), with an average of 19°C (66°F). The month experiences relatively low precipitation, totaling only 15 mm (0.6 in) over about four days, coupled with moderate humidity at 60%. In stark contrast, February sees much colder temperatures, with a minimum of -24°C (-11°F) and a maximum of 16°C (61°F), averaging -1°C (31°F). This month is significantly wetter, receiving 114 mm (4.5 in) of precipitation over 16 days and a higher humidity level of 87%. For a closer look at February weather conditions, check out Sunriver weather in February.
When comparing the weather in August and March, it’s clear that the two months present stark contrasts. August boasts much warmer temperatures, with a minimum of 0°C (32°F) and an average of 19°C (66°F), peaking at 36°C (98°F). In this month, precipitation is light, totaling just 15 mm (0.6 in) over 4 days, along with a humidity level of 60%. In contrast, March experiences frigid conditions, with a minimum temperature of -14°C (6°F) and an average of only 2°C (36°F), reaching a comfortable maximum of 18°C (65°F). This month is much wetter, receiving 74 mm (2.9 in) of precipitation that falls over 14 days, and carries a higher humidity level of 87%. For more detailed insights, you can check out Sunriver weather in March.
In contrast to April, when temperatures can plunge to a minimum of -11°C (12°F) and average around 5°C (42°F), August boasts a much warmer climate with a minimum of 0°C (32°F) and an average of 19°C (66°F). The maximum temperatures in August can soar up to 36°C (98°F), compared to April's peak of 26°C (79°F). Precipitation also differs significantly; April experiences an average of 69 mm (2.7 in) over 11 days, while August is much drier, with only 15 mm (0.6 in) over just 4 days. Additionally, humidity levels are higher in April at 86%, compared to August's 60%. For more insights into April weather, you can check Sunriver weather in April.
August and May present contrasting weather patterns. August typically boasts a warmer climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 36°C (98°F), alongside an average temperature of 19°C (66°F). In contrast, May experiences cooler conditions, with temperatures ranging from -5°C (24°F) to a maximum of 30°C (86°F), and an average of 10°C (50°F). Additionally, May sees significantly more precipitation, with 46 mm (1.8 in) spread over 10 days, compared to August's lighter 15 mm (0.6 in) over just 4 days. The humidity also differs, with May being more humid at 79%, as opposed to August's 60%. For more details, you can check out Sunriver weather in May.
When comparing the weather in August and June, notable differences emerge. August typically sees a warmer temperature range, with a minimum of 0°C (32°F) and an average high of 36°C (98°F), while June experiences cooler temperatures, with a minimum of -2°C (29°F) and an average max of 40°C (104°F). Precipitation is also less frequent in August, averaging only 15 mm (0.6 in) over 4 days, compared to June’s 29 mm (1.2 in) over 7 days. Additionally, August boasts a lower humidity level of 60%, offering a drier and more comfortable feel, whereas June's humidity is quite high at 80%. For a closer look at June's climate, check out Sunriver weather in June.
In comparing the weather between July and August, we see some notable differences. August experiences slightly higher maximum temperatures, reaching up to 36°C (98°F) compared to July's maximum of 35°C (95°F). Both months share a minimum temperature of 0°C (32°F), while the average temperature in August is marginally lower at 19°C (66°F) versus July's 19°C (67°F).
Precipitation is also slightly increased in August, with 15 mm (0.6 in) over 4 days, compared to July's 10 mm (0.4 in) over just 2 days. Additionally, humidity levels are significantly lower in August at 60%, while July experiences a higher average humidity of 77%. This indicates that August tends to feel less muggy than July. For more detailed information on July weather, you can check Sunriver weather in July.
August typically offers a warmer climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 36°C (98°F) and an average of 19°C (66°F). In contrast, September sees a drop in average temperatures to 14°C (57°F) and a minimum of -3°C (26°F), despite still reaching similar maximums of 36°C (97°F). Additionally, September experiences more precipitation with 39 mm (1.5 in) over 5 days compared to August's lighter rainfall of 15 mm (0.6 in) across 4 days. Humidity levels slightly decrease from 60% in August to 57% in September. For more detailed insights, you can explore Sunriver weather in September.
August and October present distinctly different weather patterns. In August, temperatures can reach a comfortable average of 19°C (66°F) with highs peaking at 36°C (98°F) and minimal precipitation, totaling just 15 mm (0.6 in) over four days. The humidity level is moderate at 60%, creating warm and often sunny conditions. In contrast, October brings notably cooler temperatures, with an average of 7°C (45°F), and a high of 29°C (84°F), while temperatures can drop as low as -10°C (14°F). This month experiences more precipitation, with a total of 46 mm (1.8 in) over six days and higher humidity at 76%, leading to a damp and crisp atmosphere. For more details, you can check out Sunriver weather in October.
August and November present stark contrasts in weather. In August, temperatures range from a minimum of 0°C (32°F) to a scorching maximum of 36°C (98°F), with an average of 19°C (66°F). The month experiences relatively low precipitation, totaling just 15 mm (0.6 in) over about 4 days, and humidity sits at a moderate 60%. On the other hand, November sees much chillier temperatures, with a minimum of -17°C (1°F) and an average of just 3°C (37°F), while the maximum reaches a milder 21°C (70°F). This month is considerably wetter, with 79 mm (3.1 in) of precipitation spread across approximately 11 days and higher humidity levels of 87%. For more detailed insights about November weather specifics, you can visit Sunriver weather in November.
August and December offer starkly contrasting weather conditions. In August, temperatures range from a minimum of 0°C (32°F) to a maximum of 36°C (98°F), with an average of 19°C (66°F). The month sees relatively low precipitation, with only 15 mm (0.6 in) across about 4 days, and humidity levels around 60%. In contrast, December experiences much colder temperatures, with a minimum of -17°C (2°F) and a maximum of 17°C (63°F), averaging 0°C (31°F). Additionally, precipitation significantly increases to 91 mm (3.6 in) over approximately 14 days, coupled with higher humidity at 88%. For more details about December's weather, you can check Sunriver weather in December.
As August rolls in, Sunriver's weather showcases its warmest days of the year, with temperatures reaching impressive highs alongside refreshing evenings. Unlike the chill of winter months, August brings a pleasant average warmth that invites outdoor adventures. With relatively low precipitation and just a few rainy days, this month is typically drier compared to the earlier summer period, making it perfect for enjoying Sunriver's stunning landscapes. The notable 60% humidity adds a touch of comfort, ensuring that even the hottest days feel enjoyable. For a deeper understanding of Sunriver’s overall climate, explore Sunriver Climate.