Sunriver (OR) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sunriver.
Climate overview of Sunriver
The climate in Sunriver, Oregon, United States of America, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in July to 3°C (37°F) in December.
With around 468 mm (18 in) of annual rain/snowfall, Sunriver has a fairly dry climate. However, it has a distinct dry season from April to October, with warm summers and cold winters. The wettest month is December, while August sees the least rain.
Sunriver Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sunriver - and find the best time to visit.
Monthly Temperature in Sunriver
In Sunriver, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 3°C (37°F).
At night, temperatures range from around 7°C (45°F) in July to -7°C (19°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sunriver
Sunriver typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 468 mm (18 in). Sunriver can be quite wet during December, receiving approximately 94 mm (3.7 in) of precipitation over 17 snowy/rainy days.
In contrast, during the driest month (August), you will experience much drier conditions, with 9.3 mm (0.4 in) of precipitation spread across 3 rainy days. For more details, please visit our Sunriver Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Sunriver
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Fewest rainy days: July, August and September
- Seasonal pattern: A distinct dry season from April to October, with warm summers and cold winters
- Coldest conditions: December, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Sunriver
What is the best time to visit Sunriver?
June, July, August and September typically offer the most optimal weather in Sunriver. In contrast, January, February, March, November and December tend to have less optimal conditions. Sunriver has a distinct dry season from April to October, with warm summers and cold winters.
What temperatures can I expect in Sunriver?
Daytime highs range from 3°C (37°F) in December to 29°C (84°F) in July. Nighttime lows range from -7°C (19°F) to 7°C (45°F). Temperatures vary considerably through the year.
How much rain does Sunriver get?
Annual rainfall is around 468 mm (18 in). December is the wettest month with 94 mm (3.7 in), while August is the driest with 9.3 mm (0.4 in). In the coldest months, precipitation may fall as snow/rain.
Sunriver 3-Day Forecast
Sunriver (OR) 3-Day Forecast
Sunriver on the map
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