When is the best time to go to Nagano
The chart above shows the best time of year to visit Nagano, Japan. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Nagano
Nagano weather by month
Please note our recommendations for when to visit Nagano are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 3°C | 51mm | 5hrs | 10.9hrs |
The climate in Nagano during January can be summarized as cold and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Nagano for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
January is in the winter in Nagano and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 3°C (37°F), whilst at night -7°C (19°F) is normal.
On average January is the driest month of the year in Nagano with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 3°C | 51mm | 5.3hrs | 11.7hrs |
February in Nagano is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Nagano for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
February is in the winter in Nagano and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 4°C (39°F), whilst at night -6°C (21°F) is normal.
On average February is the 2nd driest month of the year in Nagano with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 7°C | 62mm | 6hrs | 12.8hrs |
The weather in March in Nagano is characteristically cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Nagano for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
March is in the spring in Nagano and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night -3°C (26°F) is normal.
On average March is the 3rd driest month of the year in Nagano with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 14°C | 75mm | 6.5hrs | 14hrs |
Nagano's weather in April is typically cool and reasonably dry in nature.
It is perhaps a good month to visit Nagano, with some surprisingly good weather at this time of year.
April is in the spring in Nagano and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 4°C (38°F) is normal.
On average April is the 4th driest month of the year in Nagano with around 75mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.5 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 19°C | 90mm | 7hrs | 15hrs |
May is a a little damp month in Nagano and the temperature is generally mild.
It is perhaps the perfect month to visit Nagano, with some surprisingly good weather at this time of year.
May is in the spring in Nagano and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 9°C (48°F) is normal.
On average May is the 5th driest month of the year in Nagano with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 158mm | 5.2hrs | 10.9hrs |
The weather in June in Nagano is characteristically warm and wet.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Nagano.
June is in the summer in Nagano and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 14°C (58°F) is normal.
On average June is the 6th driest month of the year in Nagano with around 158mm 6.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.2 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 25°C | 169mm | 5.3hrs | 11.7hrs |
July in Nagano is generally wet with the temperature being hot.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Nagano.
July is in the summer in Nagano and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 19°C (66°F) is normal.
On average July is the 6th wettest month of the year in Nagano with around 169mm 6.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 118mm | 6.3hrs | 12.8hrs |
The weather in August in Nagano is characteristically hot, humid and damp.
It is perhaps a good month to visit Nagano, with some extremely good weather at this time of year.
August is in the summer in Nagano and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (85°F), whilst at night 20°C (68°F) is normal.
On average August is the 5th wettest month of the year in Nagano with around 118mm 4.7 inches of rain making it a damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 153mm | 4.5hrs | 14hrs |
Nagano's weather in September is typically warm and wet in nature.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Nagano.
September is in the fall / autumn in Nagano and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 15°C (60°F) is normal.
On average September is the 4th wettest month of the year in Nagano with around 153mm 6 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.5 hours of sunshine per day.
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 87mm | 5hrs | 15hrs |
October is a a little damp month in Nagano and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it a good time to visit Nagano.
October is in the fall / autumn in Nagano and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 8°C (46°F) is normal.
On average October is the 3rd wettest month of the year in Nagano with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 11°C | 56mm | 5hrs | 10.9hrs |
November in Nagano is generally reasonably dry with the temperature being cool.
It is perhaps a good month to visit Nagano, with some inordinately good weather at this time of year.
November is in the fall / autumn in Nagano and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 1°C (34°F) is normal.
On average November is the 2nd wettest month of the year in Nagano with around 56mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 6°C | 45mm | 5hrs | 11.7hrs |
December in Nagano is generally reasonably dry with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Nagano for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
December is in the winter in Nagano and is typically the warmest month of the year. Daytime maximum temperatures average around a cold 6°C (43°F), whilst at night -4°C (25°F) is normal.
On average December is the wettest month of the year in Nagano with around 45mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
Other monthly averages
Nagano weather stats
| Hottest month: | August | 29°C 84.2°F |
|---|---|---|
| Driest month: | December | 45mm 1.8ins |
| Sunniest month: | March | 6hrs |
| Coldest month: | January | 2.7°C 36.9°F |
| Wettest month: | July | 169mm 6.7ins |
| Warmest sea: | August | 25.7°C 78.3°F |
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