Lebanon (OR) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Lebanon.
Climate overview of Lebanon
The climate in Lebanon, Oregon, United States of America, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in August to 8°C (46°F) in December.
The city has a wet climate, receiving around 1122 mm (44 in) of rain/snowfall per year. Despite the high annual total, it has a distinct dry season from July to August, with warm summers and cold winters. November is the wettest month. The sunniest month is July, with 11.8 hours of sunshine per day on average.
Lebanon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lebanon - and find the best time to visit.
Monthly Temperature in Lebanon
In Lebanon, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 29°C (84°F) in August to a chilly 8°C (46°F) in December.
Nighttime temperatures range from 12°C (54°F) in August to 1°C (34°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Lebanon
Lebanon experiences significant rain/snowfall throughout the year, averaging 1122 mm (44 in) of precipitation annually. The seasons in Lebanon bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 182 mm (7.2 in) of precipitation. This rainfall is distributed across 21 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 9.7 mm (0.4 in) over 4 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Lebanon Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Lebanon
In Lebanon, summer days are longer and more sunny, with daily sunshine hours peaking at 11.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Lebanon
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from July to August, with warm summers and cold winters
Frequently asked questions about the climate in Lebanon
What is the best time to visit Lebanon?
May, June, July, August and September typically offer the most optimal weather in Lebanon. In contrast, January, February, March, November and December tend to have less optimal conditions. Lebanon has a distinct dry season from July to August, with warm summers and cold winters.
What temperatures can I expect in Lebanon?
Daytime highs range from 8°C (46°F) in December to 29°C (84°F) in August. Nighttime lows range from 1°C (34°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Lebanon get?
Annual rainfall is around 1122 mm (44 in). November is the wettest month with 182 mm (7.2 in), while August is the driest with 9.7 mm (0.4 in).
How sunny is Lebanon?
Lebanon receives around 2,485 hours of sunshine per year. July is the sunniest month with 353 hours, while December is the cloudiest with just 76 hours. Overall, Lebanon enjoys abundant sunshine.
Lebanon 3-Day Forecast
Lebanon (OR) 3-Day Forecast
Lebanon on the map
Lebanon is highlighted - select any city to see its climate.
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