Shirakawa-go Weather in September
Season: Autumn Summary:
1. It is quite warm in early and middle September, but gets pleasant at the end of the month.
2. Shirakawa-go receives ample rainfall, and you often see light rain for 14 rainy days.
3. This month is the low season, making for a relaxed journey.
Dropping Temperatures
September is at the transition period between summer to autumn, witnessing dropping temperatures. In early and middle September, summer seems to linger on and you feel quite warm: high temperatures are usually 25 - 32℃ (77 - 89.6℉), while most low temperatures vary from 20℃ (68℉) to 25℃ (77℉). However, by late September, Shirakawa-go’s weather becomes pleasant, as highs drop to 20 - 25℃ (68 - 77℉), and lows stay around 15 degrees Celsius (59 degrees Fahrenheit). Do note that there may be a few nights when the temperature falls to 11℃ (51.8℉) or so, making an extra jacket necessary.The Second Wettest Month of the Year
September is the second wettest month in Shirakawa-go, and receives high rainfall with an average of 324mm (12.8 in). It rains for two weeks, mostly light rain lasting a short time. It may rain intermittently all day and for several days in a row. In early September, the village possibly experience heavy rain, so please keep an eye on the weather forecast early and make an alternative schedule mainly focusing on indoor spots. The distant tree-cloaked mountains are often wreathed in mist on rainy days, along with rural houses, lending the whole village a special kind of beauty.During this month, the relative humidity reaches the peak of the year, at 88%, but you don’t feel quite uncomfortable when the temperature goes down.
Sunshine Hours & Daylight Hours
Sunrise Time: 5:25 - 5:48Sunset Time: 17:38 - 18:23
Average Sunlight hours: 6.2 hours
Average Daylight hours: 11 hours 50 minutes - 12 hours 57 minutes
As the rainy and cloudy climate accounts for a majority of September in Shirakawa-go, sunshine duration shortens sharply, but its intensity cannot be underestimated. The maximum UV Index of 9 means adequate sun protection is necessary. Daylight hours are also getting shorter, but you still have abundant time to visit.
What to Wear in Shirakawa-go in September
Clothes: In the beginning and middle of the month, tank tops, sleeveless or short-sleeve dresses and shorts are advisded. Around the end of the month, short-sleeve or long-sleeve shirts and thin sweatpants are more acceptable outfits. Footwear: Since it rains a lot, rain boots are the best choice. Breathable and light sandals with soft insoles, suitable for visiting a large area of scenic spots, are also highly recommended. Plus, ones you pack should be slip-resistant.
Accessories:
1. It’s essential to pack sun-protective items, including sunhats, sunglasses and sunscreen.
2. You’re advised to prepare wet wipes or a can of cooling spray to quickly relieve heat during sunny hours.
3. Remember to bring along a light raincoat or compact umbrella.
Useful Information for Shirakawa-go in September
1. As Japanese summer vacation ends and there are no major events, the total of tourists is not large in September. So, you can flexibly adjust the timing of your activities - for example, freely prolonging your stay at Gasshozukuri Minkaen Outdoor Museum to carefully observe the interior structure of gassoho-style houses. Moreover, restaurant and café owners have more idle moments, which is easier to chat with them and get deeper insights into local customs and cultures.2. During this month, natural scenery in the village is so beautiful just like a fairy world, particularly on sunny days. Under blue skies and white clouds, traditional houses are in harmonious layout, expanses of rice paddies turn golden, as well as cosmos flowers and silver grasses thrive beside the field ridges. The nice viewing destinations include Ogimachi Castle Observation Deck, Wada house and Three Small Houses. If you plan to admire such a scene in this month of 2026, the first half of the month is the best-visiting time, because most rice paddies may not be harvested.
