Kiso Valley Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in the Kiso Valley, Japan in September.

Considering a trip to the Kiso Valley, Japan this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in the Kiso Valley in September

The Kiso Valley, Japan is a region in Japan. September in the Kiso Valley generally has warm temperatures, with heavy precipitation. September falls during the summer season.

Temperatures

You can expect warm maximum daytime temperatures of around 23°C (73°F) and nighttime temperatures around 14°C (57°F) in Kiso-fukushima.

To explore the conditions in the Kiso Valley, Japan in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Miyanokoshi with an average of 236 mm (9.3 in) to heavy rainfall in Kiso-fukushima with 242 mm (9.5 in).

Explore the Kiso Valley by month

Best Places to Visit in the Kiso Valley in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Kiso Valley.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in the Kiso Valley

What is the weather like in September for some of the most popular destinations in the Kiso Valley, Japan?

Temperature range in the Kiso Valley (September)

Precipitation variation in the Kiso Valley (September)

Kiso-fukushima

In September Kiso-fukushima generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 14°C (57°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
27°C (81°F)
23°C (73°F)
17°C (63°F)
Min temperature
18°C (64°F)
14°C (57°F)
7°C (45°F)
Monthly rainfall
192 mm (7.6 in)
242 mm (9.5 in)
202 mm (8 in)
Monthly rainy days
20 days
19 days
15 days
Weather conditions

Miyanokoshi

In September Miyanokoshi generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 14°C (57°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
27°C (81°F)
23°C (73°F)
17°C (63°F)
Min temperature
17°C (63°F)
14°C (57°F)
7°C (45°F)
Monthly rainfall
187 mm (7.4 in)
236 mm (9.3 in)
200 mm (7.9 in)
Monthly rainy days
20 days
19 days
15 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in the Kiso Valley, in Japan.

Popular cities in September

Day & night temperatures, rainfall and average weather in the Kiso Valley in September.

City Weather Day temp Night temp Rainfall
Kiso-fukushima 23°C (73°F) 14°C (57°F) 242 mm (9.5 in)
Miyanokoshi 23°C (73°F) 14°C (57°F) 236 mm (9.3 in)

The Kiso Valley weather in September: frequently asked questions

What is the weather like in the Kiso Valley, Japan in September?

September in the Kiso Valley, Japan brings unpleasant weather. In Kiso-fukushima, daytime temperatures are typically around 23°C (73°F) and nighttime lows hover near 14°C (57°F).

What is the average temperature in the Kiso Valley, Japan in September?

Average temperatures in the Kiso Valley, Japan during September range from a nighttime low near 14°C (57°F) to a daytime high around 23°C (73°F) in Kiso-fukushima.

Does the Kiso Valley, Japan get a lot of rain in September?

Expect plenty of rainfall. Kiso-fukushima records an average of 242 mm (9.5 in) in September, putting it among the wetter months for the Kiso Valley, Japan.

Is September a Good Time to Visit the Kiso Valley, Japan?

In our view, September might not be the best time to travel to the Kiso Valley, Japan with often unpleasant weather in Kiso-fukushima.

Generally speaking, August provides tolerable weather in Kiso-fukushima. The weather in January, February, March, April, June, July, October, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in the Kiso Valley.

Weather and climate has detailed information for every country in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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