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.
Weather in Hongo
Annual average temperature: approx. 17°C / Annual rainfall: approx. 1648 mm / Summer humidity: 70%–80% / Rainiest month: June
Hongo weather by month
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
7-day weather forecast for Hongo
10/16
Friday
Overcast
25.9°C/19.7°C
10/17
Saturday
Sunny
25.3°C/19.8°C
10/18
Sunday
Sunny
23.5°C/18.5°C
10/19
Monday
Overcast
26.5°C/20.1°C
10/20
Tuesday
Overcast
27.6°C/22.2°C
10/21
Wednesday
Sunny
29.3°C/23.1°C
10/22
Thursday
Overcast
25.1°C/18.3°C
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