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May 18th, 2026 :: 9:53 pm JST   

Local Weather Report for
Iwanai
Japan

 Iwanai Weather Forecast Summary  
 
Today
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Saturday
May 23rd
Mostly Cloudy Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
12°C
16°C
9°C
20°C
8°C
20°C
7°C
19°C
6°C
 
 Iwanai Detailed Weather Forecast  
 
Tuesday, May 19th, 2026
Overnight Temperature: 10°C
Mostly clear.
Morning Temperature: 12°C
Mostly cloudy.
Afternoon Temperature: 11°C
Cloudy.
Evening Temperature: 9°C
Mostly cloudy.
Wednesday, May 20th, 2026
Overnight Temperature: 9°C
A mix of cloudy and clear skies.
Morning Temperature: 13°C
Mostly sunny.
Afternoon Temperature: 15°C
Mostly sunny.
Evening Temperature: 11°C
Mostly clear.
Thursday, May 21st, 2026
Overnight Temperature: 9°C
Mostly clear.
Morning Temperature: 15°C
Mostly sunny.
Afternoon Temperature: 20°C
Mostly sunny.
Evening Temperature: 12°C
Mostly clear.
Friday, May 22nd, 2026
Overnight Temperature: 8°C
Clear.
Morning Temperature: 14°C
Mostly sunny.
Afternoon Temperature: 20°C
Sunny.
Evening Temperature: 11°C
Mostly clear.
Saturday, May 23rd, 2026
Overnight Temperature: 6°C
A mix of clear and cloudy skies. Windy at times.
Morning Temperature: 11°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 18°C
Mostly sunny. Windy at times.
Evening Temperature: 12°C
A mix of cloudy and clear skies. Windy at times.
Sunday, May 24th, 2026
Overnight Temperature: 11°C
Cloudy. Windy at times.
Morning Temperature: 12°C
Cloudy with a slight chance of showers. Windy at times.
Afternoon Temperature: 12°C
Cloudy with a few showers.
Evening Temperature: 12°C
Cloudy with a few showers.
Monday, May 25th, 2026
Overnight Temperature: 10°C
Mostly cloudy.
Morning Temperature: 10°C
A mix of cloud and sun.
Afternoon Temperature: 10°C
Mostly cloudy. Windy at times.
Evening Temperature: 8°C
Cloudy with clear periods with a chance of showers.
Tuesday, May 26th, 2026
Overnight Temperature: 8°C
A mix of cloudy and clear skies with a slight chance of showers.
Morning Temperature: 9°C
Mostly cloudy with a slight chance of showers.
Afternoon Temperature: 11°C
A mix of cloud and sun.
Evening Temperature: 9°C
Mostly cloudy.
Wednesday, May 27th, 2026
Overnight Temperature: 8°C
Cloudy.
Morning Temperature: 11°C
A mix of cloud and sun.
Afternoon Temperature: 14°C
A mix of cloud and sun.
Evening Temperature: 9°C
Cloudy.





 

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This WeatherCity Weather Forecast for Iwanai, Japan is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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