While it doesn't have the same overwhelming appeal as a trip to Osaka or Okinawa, it's still quite good considering Tokyo's price index, and it gives you more places to visit.
I went there for the first time in the spring! There were lots of flowers and it was so beautiful! There was also a dog run, and my dog seemed happy, which was great!
Anonymous User
Family
Hanno Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Hanno year round climate
Spring (March–May): 10.1–18.5°C on average, the climate gradually changes from cold to warm, with abundant rainfall. Common activities: Spring outings, flower viewing. Recommended clothing: Light jacket, comfortable trousers.
Summer (June–August): 22.5–28°C on average, hot and humid, with more rainfall. Common activities: Summer resorts, water activities (such as playing in streams). Recommended clothing: Light and breathable clothing, sun hat.
Autumn (September–November): 17.8–25.2°C on average, pleasant climate, September has the most rainfall, and it gradually becomes drier afterwards. Common activities: Maple viewing, hiking. Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): 4.2–6.7°C on average, cold and dry, with less rainfall. Common activities: Hot spring bathing, skiing (requires going to mountainous areas). Recommended clothing: Warm jacket, thick sweater, scarf and gloves.
Hanno climatological average
Annual average temperature: approx. 16°C / Annual rainfall: approx. 1726 mm / Summer humidity: 70%–80% / Rainiest month: September
Hanno monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
4.2°C
28.7
February
5.4°C
50
March
10.1°C
129.1
April
15.3°C
138.2
May
18.5°C
149.3
June
22.5°C
261.4
July
27.6°C
170.7
August
28°C
251.1
September
25.2°C
324.6
October
17.8°C
128.3
November
13.1°C
71.6
December
6.7°C
23.9
Hanno weather for the next seven days
4/26
Sunday
Sunny
19.7°C/12.6°C
4/27
Monday
Heavy rain
17.8°C/12°C
4/28
Tuesday
Patchy rain nearby
21.5°C/11.3°C
4/29
Wednesday
Patchy rain nearby
20.6°C/13.8°C
4/30
Thursday
Patchy rain nearby
16.7°C/13.2°C
5/1
Friday
Patchy rain nearby
13.6°C/11.5°C
5/2
Saturday
Sunny
21.7°C/9.1°C
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