Komoro Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Komoro.
Climate overview of Komoro
The climate in Komoro, Nagano Prefecture, Japan, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in August to 4°C (39°F) in January.
The city has a wet climate, receiving around 1543 mm (61 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. July is the wettest month. The sunniest month is May, with 7.0 hours of sunshine per day on average.
Komoro Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Komoro - and find the best time to visit.
Monthly Temperature in Komoro
In Komoro, 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 4°C (39°F) in January.
Nighttime temperatures range from 19°C (66°F) in August to -6°C (21°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Komoro
Komoro experiences significant rain/snowfall throughout the year, averaging 1543 mm (61 in) of precipitation annually. The seasons in Komoro bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 209 mm (8.2 in) of precipitation. This rainfall is distributed across 22 rainy days.
In contrast, the driest month, December, experiences much less snow/rainfall, totaling 64 mm (2.5 in) over 14 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Komoro 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 Komoro
Komoro enjoys sunny spells year-round. May sees up to 7.0 hours of daily sunshine, perfect for a sunny trip. January, the least sunny month, still offers a generous 4.3 hours of sun despite this cloudier time of the year.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Komoro by Month
The relative humidity is high throughout the year in Komoro.
The city experiences its highest humidity in January, reaching 78%. In April, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Komoro
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May and August
- Warmest weather: July and August
- Most sunshine: May and August
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Komoro
What is the best time to visit Komoro?
May and August typically offer the most optimal weather in Komoro. In contrast, January, February, March and December tend to have less optimal conditions. Komoro has warm summers and cold winters.
What temperatures can I expect in Komoro?
Daytime highs range from 4°C (39°F) in January to 29°C (84°F) in August. Nighttime lows range from -6°C (21°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Komoro get?
Annual rainfall is around 1543 mm (61 in). July is the wettest month with 209 mm (8.2 in), while December is the driest with 64 mm (2.5 in).
How sunny is Komoro?
Komoro receives around 1,951 hours of sunshine per year. May is the sunniest month with 209 hours, while January is the cloudiest with just 128 hours.
Komoro 3-Day Forecast
Komoro on the map
Komoro is highlighted - select any city to see its climate.
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