Monte Rio (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Monte Rio.
Climate overview of Monte Rio
Monte Rio, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 27°C (81°F) in July, while winters cool to 14°C (57°F) in December.
Rainfall is high, totalling around 1129 mm (44 in) per year. December is the wettest month and July the driest. The city also experiences distinct dry (May to September) and wet (December to February) seasons, with warm summers and mild winters. The most sunshine falls in May, with an average of 10.3 hours of daily sunshine.
Monte Rio Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Monte Rio - and find the best time to visit.
Monthly Temperature in Monte Rio
Depending on the time of the year, temperatures range from comfortable to moderate in Monte Rio. Average maximum daytime temperatures range from a comfortable 27°C (81°F) in July, the warmest time of the year, to a moderate 14°C (57°F) during cooler months like December.
At night, you can expect temperatures ranging from 11°C (52°F) in July to around 4°C (39°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Monte Rio
Monte Rio has a relatively rainy climate with high precipitation levels, averaging 1129 mm (44 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives heavy rainfall, averaging 251 mm (9.9 in) of precipitation, recorded across 14 rainy days. In contrast, the driest month July brings less rainfall, with 1.2 mm (0.05 in) over 2 rainy days. For more details, please visit our Monte Rio 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 Monte Rio
Seasonal changes in sunshine hours are quite dramatic in Monte Rio. While May receives considerable daily sunshine with up to 10.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Monte Rio
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, June, July, August, September and October
- Warmest weather: June, July, August and September
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: Distinct dry (May to September) and wet (December to February) seasons, with warm summers and mild winters
Frequently asked questions about the climate in Monte Rio
What is the best time to visit Monte Rio?
April, May, June, July, August, September and October typically offer the most optimal weather in Monte Rio. In contrast, February and December tend to have less optimal conditions. Monte Rio has distinct dry (May to September) and wet (December to February) seasons, with warm summers and mild winters.
What temperatures can I expect in Monte Rio?
Daytime highs range from 14°C (57°F) in December to 27°C (81°F) in July. Nighttime lows range from 4°C (39°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Monte Rio get?
Annual rainfall is around 1129 mm (44 in). December is the wettest month with 251 mm (9.9 in), while July is the driest with 1.2 mm (0.05 in).
How sunny is Monte Rio?
Monte Rio receives around 3,042 hours of sunshine per year. May is the sunniest month with 310 hours, while December is the cloudiest with just 160 hours. Overall, Monte Rio enjoys abundant sunshine.
Monte Rio 3-Day Forecast
Monte Rio (CA) 3-Day Forecast
Monte Rio on the map
Monte Rio is highlighted - select any city to see its climate.
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