Spring (March–May): Average 11.6–18.8°C, mild climate but relatively high rainfall, especially in April. Common activities: Flower viewing, hiking (bring rain gear). Recommended clothing: Light jacket, long-sleeved clothing, raincoat or umbrella.
Summer (June–August): Average 22.2–27.9°C, hot and humid, with the most rainfall in June. Be sure to take precautions against heat and rain. Common activities: Visiting summer resorts, beach activities (pay attention to typhoon warnings). Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 19.1–14.4°C, comfortable and pleasant climate with gradually decreasing rainfall. Common activities: Hiking, outings, viewing autumn leaves. Recommended clothing: Light jacket, long-sleeved clothing.
Winter (December–February): Average 7.3–8.1°C, cold climate with low rainfall. Common activities: Hot springs, indoor activities. Recommended clothing: Warm jacket, sweater, scarf, hat.
Hayato climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 2470 mm / Summer humidity: 70%–80% / Rainiest month: June
Hayato monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.4°C
67.2
February
8.1°C
127.8
March
11.6°C
220.7
April
16.1°C
278.8
May
18.8°C
262.6
June
22.2°C
570.6
July
26.4°C
280.7
August
27.9°C
216.9
September
25.2°C
154.1
October
19.1°C
111
November
14.4°C
104.6
December
7.3°C
75.8
Hayato weather for the next seven days
12/15
Monday
Sunny
11.6°C/4.5°C
12/16
Tuesday
Sunny
13.7°C/3°C
12/17
Wednesday
Moderate rain
15.1°C/6.5°C
12/18
Thursday
Sunny
15.5°C/7.5°C
12/19
Friday
Sunny
17.6°C/8.3°C
12/20
Saturday
Partly Cloudy
18°C/11.8°C
12/21
Sunday
Sunny
19.1°C/11.9°C
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