Spring (March–May): Average 11.1–19.3°C, the climate shifts from cool to warm with more rainfall and occasional overcast days. Common activities: flower viewing, picnics, museum visits. Recommended clothing: light jacket, comfortable trousers or skirt.
Summer (June–August): Average 23.1–28.6°C, hot and humid with heavier rainfall and occasional typhoons. Common activities: swimming, outdoor activities (beware of heatstroke), visiting indoor attractions. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 14.2–25.9°C, pleasant and comfortable climate, gradually cooling down with decreasing rainfall. Common activities: maple leaf viewing, hiking, enjoying autumnal delicacies. Recommended clothing: light jacket, long-sleeved shirts and trousers.
Winter (December–February): Average 5.9–8.3°C, cold and dry with less rainfall. Common activities: visiting indoor attractions, onsen bathing. Recommended clothing: warm coat, sweater, scarf, gloves.
Hongo climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 1648 mm / Summer humidity: 70%–80% / Rainiest month: June
Hongo monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.9°C
25
February
6.8°C
63.7
March
11.1°C
148.3
April
16.2°C
143.7
May
19.3°C
186.3
June
23.1°C
253.7
July
28.3°C
156.7
August
28.6°C
206.3
September
25.9°C
217
October
18.9°C
146.7
November
14.2°C
75.7
December
8.3°C
25.8
Hongo weather for the next seven days
5/7
Thursday
Partly Cloudy
24°C/17.9°C
5/8
Friday
Sunny
24.5°C/19.4°C
5/9
Saturday
Patchy rain nearby
22.4°C/17.7°C
5/10
Sunday
Sunny
21.9°C/15.3°C
5/11
Monday
Sunny
23°C/17°C
5/12
Tuesday
Sunny
22°C/17.5°C
5/13
Wednesday
Sunny
24.6°C/17.3°C
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