The itinerary was packed and plentiful, but the places I wanted to visit were excellent, the fireworks boat had a comfortable viewing spot, and the view was breathtaking. The only downside was that the weather wasn't as I expected; it rained all day.
There were no problems communicating in Chinese, Japanese, or English. Although each stop was quite short, we managed to see all the key scenic spots. Be sure to get on the bus on time! The driver was fast and steady. I would definitely consider joining a similar trip again.
Anonymous User
Family
Showa-shinzan Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Showa-shinzan year round climate
Spring (March–May): Average 2.6–11.9°C, cold and rainy climate; keep warm. Common activities: Enjoying the scenery after the spring snowmelt, viewing the volcano from afar. Recommended clothing: Warm jacket, sweater, waterproof clothing.
Summer (June–August): Average 16.0–22.8°C, warm and humid, with relatively high rainfall, especially in August. Common activities: Hiking (be aware of changing weather), enjoying the volcanic landscape. Recommended clothing: Lightweight and breathable clothing, rain gear, sun protection clothing.
Autumn (September–November): Average 13.8–20.0°C, pleasant climate, gradually decreasing rainfall. Common activities: Viewing autumn leaves (depending on tree species), walking. Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average -1.7–-0.2°C, cold and dry, low chance of snowfall. Common activities: Enjoying the winter volcanic landscape, experiencing snow activities (if there is snowfall). Recommended clothing: Heavy coat, hat, gloves, scarf.
Showa-shinzan climatological average
Annual average temperature: approx. 9.7°C / Annual rainfall: approx. 1146 mm / Summer humidity: 70%–80% / Rainiest month: August
Showa-shinzan monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-1.7°C
62.5
February
-1.2°C
29.6
March
2.6°C
53.2
April
8.1°C
53.1
May
11.9°C
66.8
June
16°C
149.2
July
21.4°C
116.1
August
22.8°C
218.8
September
20°C
166.8
October
13.8°C
118.4
November
7.2°C
73.2
December
-0.2°C
38.6
Showa-shinzan weather for the next seven days
5/19
Tuesday
Partly Cloudy
16.3°C/9.3°C
5/20
Wednesday
Partly Cloudy
12°C/7.8°C
5/21
Thursday
Sunny
13.7°C/7.8°C
5/22
Friday
Sunny
13.4°C/5.9°C
5/23
Saturday
Cloudy
13.5°C/5.8°C
5/24
Sunday
Moderate rain
11.2°C/7.4°C
5/25
Monday
Patchy rain nearby
13.1°C/9.9°C
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