Spring (March–May): Average 11.5–19.6°C, mild and comfortable climate, but with relatively high rainfall, especially in April. Common activities: Flower viewing, outdoor excursions (be mindful of weather changes). Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 23.2–28.9°C, hot and humid, with higher rainfall from June to August; pay attention to heatstroke prevention. Common activities: Swimming, trips to summer resorts. Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
Autumn (September–November): Average 19.9–15.4°C, pleasant climate, lower humidity, ideal for travel. Common activities: Maple leaf viewing, hiking. Recommended clothing: Long-sleeved shirt, light jacket; be mindful of the large temperature difference between day and night.
Winter (December–February): Average 9.6–7.6°C, cold and dry, with less rainfall. Common activities: Hot spring bathing, indoor activities. Recommended clothing: Warm jacket, scarf, gloves.
Okawa climatological average
Annual average temperature: approx. 17.8°C / Annual rainfall: approx. 1636 mm / Summer humidity: 70%–80% / Rainiest month: June
Okawa monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.9°C
30.9
February
7.6°C
61.9
March
11.5°C
149
April
16.4°C
161
May
19.6°C
186.5
June
23.2°C
243.6
July
28.2°C
140
August
28.9°C
206.2
September
26.3°C
188.4
October
19.9°C
148.2
November
15.4°C
91.4
December
9.6°C
29.1
Okawa weather for the next seven days
10/16
Thursday
Patchy rain nearby
22.7°C/18.6°C
10/17
Friday
Sunny
23.4°C/20.6°C
10/18
Saturday
Patchy rain nearby
23.9°C/20.3°C
10/19
Sunday
Patchy rain nearby
22.6°C/17.5°C
10/20
Monday
Patchy rain nearby
17.7°C/16.8°C
10/21
Tuesday
Moderate rain
15.9°C/13.7°C
10/22
Wednesday
Patchy rain nearby
16.9°C/14.7°C
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