Uonuma Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Uonuma.
Climate overview of Uonuma
The climate in Uonuma, Niigata Prefecture, Japan, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in August to 3°C (37°F) in January.
The city has a wet climate, receiving around 2513 mm (99 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. January is the wettest month. Sunshine peaks in August, when the city sees around 6.4 hours of sunshine per day.
Uonuma Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Uonuma - and find the best time to visit.
Monthly Temperature in Uonuma
In Uonuma, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 30°C (86°F) in August to a chilly 3°C (37°F) in January.
Nighttime temperatures range from 21°C (70°F) in August to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Uonuma
Uonuma experiences significant rain/snowfall throughout the year, averaging 2513 mm (99 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, January, sees around 288 mm (11 in) of snow/rainfall, perfect for those who enjoy a bit of snow/rain now and then. The driest month, April, still receives a respectable 148 mm (5.8 in) of rainfall. For more details, please visit our Uonuma 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 Uonuma
In Uonuma, summer days are longer and more sunny, with daily sunshine hours peaking at 6.4 hours in August. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 1.6 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 Uonuma
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: July and August
- Most sunshine: May and August
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Uonuma
What is the best time to visit Uonuma?
May typically offers the most optimal weather in Uonuma. In contrast, January, February, March, July, August, November and December tend to have less optimal conditions. Uonuma has warm summers and cold winters.
What temperatures can I expect in Uonuma?
Daytime highs range from 3°C (37°F) in January to 30°C (86°F) in August. Nighttime lows range from -3°C (27°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Uonuma get?
Annual rainfall is around 2513 mm (99 in). January is the wettest month with 288 mm (11 in), while April is the driest with 148 mm (5.8 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Uonuma?
Uonuma receives around 1,468 hours of sunshine per year. August is the sunniest month with 193 hours, while January is the cloudiest with just 49 hours.
Uonuma 3-Day Forecast
Uonuma on the map
Uonuma is highlighted - select any city to see its climate.
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