Climate ▸Forecast ▸September ▸October ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Myoko Weather in September

Myoko in September sees high daytime temperatures of 25°C (77°F) and nighttime lows of 16°C (61°F). As part of the rainy season, showers are frequent and often heavy. Budget around 237 mm (9.3 in) of rainfall for the month.

Rainfall in Myoko in September

Myoko is in the rainy season in September, with rain on around 20 days and an average of 237 mm (9.3 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.

Temperature in Myoko in September

Temperatures in Myoko in September top out at 25°C (77°F) and drop to 16°C (61°F) overnight. During September, the summer season is in full swing. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 16°C (61°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.

Sunshine in Myoko in September

You can expect a moderate amount of sunlight, with approximately 142 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

For Myoko itself, May generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Myoko's climate page.

Myoko Temperature in September

Min TemperatureMin Temperature 16°C (61°F)  
Max TemperatureMax Temperature 25°C (77°F)  
Chance of RainChance of Rain 67%  
PrecipitationPrecipitation 237 mm (9.3 in)  
Rainy daysRainy days 20 days  
HumidityHumidity 74% *  
SunshineSunshine 142 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Nagano, Japan (27 KM, 16 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Myoko typically drop from around 28°C (82°F) at the start of September to approximately 23°C (73°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 21°C (70°F).

Average temperatures in September

Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather for Myoko in September

Browse day-by-day weather records for Myoko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Myoko historical weather extremes in September

Based on 19 years of weather observations in Myoko between 2006 and 2025, these are the recorded extremes.

  • On September 3, 2020, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
  • The lowest daytime temperature in September was 17°C (63°F), recorded on September 30, 2007.
  • The coldest night in September in Myoko was on September 28, 2008, with a minimum of 10°C (50°F).
  • Peak precipitation in September occurred on September 16, 2013, when 104 mm (4.1 in) of precipitation was measured.

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 →

Map not visible? Whoops sorry! Please refresh the page.
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 Myoko in September

For Myoko in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Myoko in September

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

Swimming
7/10
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 Myoko's climate page.

More climate data for Myoko