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Kiso Weather in September

September in Kiso brings high temperatures, with daytime highs of 23°C (73°F) and nights around 14°C (57°F). It's part of the rainy season, with 243 mm (9.6 in) of rainfall on average, so an umbrella or poncho is a good idea.

Rainfall in Kiso in September

Kiso is in the rainy season in September, with rain on around 19 days and an average of 243 mm (9.6 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.

Temperature in Kiso in September

September in Kiso brings typical temperatures with highs around 23°C (73°F) and lows of 14°C (57°F). The summer season takes place during September. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

If your ideal day consists of dry skies and pleasant temperatures, August typically offers the best circumstances for Kiso.

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For a detailed overview over the year and the best time to visit Japan, check out our Kiso's climate page.

Kiso Temperature in September

Min TemperatureMin Temperature 14°C (57°F)  
Max TemperatureMax Temperature 23°C (73°F)  
Chance of RainChance of Rain 65%  
PrecipitationPrecipitation 243 mm (9.6 in)  
Rainy daysRainy days 19 days  

Best Places in Japan in September

Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in September →

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Legend 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).

What to Wear in Kiso in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!

What To Do in Kiso in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Camping
6/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Japan, check out our Kiso's climate page.

More climate data for Kiso