Live Weather & Forecast
Weather in Iwakuni
Yamaguchi, Japan · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
61°F / Feels 61°F
Partly cloudy
Iwakuni, Yamaguchi
🌙 Nighttime
Updated: 2026-04-17 21:30
Humidity
83%
Wind
4 km/h S
Wind Gust
7.6 km/h
Pressure
1017 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
11.1°C
Wind Degree
186°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
392.9 μg/m³
NO₂
17.8 μg/m³
O₃
83 μg/m³
SO₂
8.8 μg/m³
PM 2.5
11.6 μg/m³
PM 10
15.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Iwakuni, Yamaguchi
12 AM
11°
Clear
1 AM
11°
Partly Cloudy
2 AM
11°
Clear
3 AM
11°
Clear
4 AM
11°
Clear
5 AM
11°
Overcast
6 AM
12°
Overcast
7 AM
13°
Overcast
8 AM
14°
Cloudy
9 AM
14°
Partly Cloudy
10 AM
15°
Partly Cloudy
11 AM
16°
Partly Cloudy
12 PM
16°
Patchy rain nearby
1 PM
17°
Patchy rain nearby
2 PM
16°
Patchy rain nearby
3 PM
17°
Patchy rain nearby
4 PM
17°
Patchy rain nearby
5 PM
15°
Patchy rain nearby
6 PM
14°
Overcast
7 PM
14°
Partly Cloudy
8 PM
14°
Clear
9 PM
16°
Partly cloudy
10 PM
14°
Partly Cloudy
11 PM
13°
Partly Cloudy
3-Day Forecast
Daily overview for Iwakuni, Yamaguchi
Today
Patchy rain nearby
17°
/
11°
🌧️ 85% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 9.4 km/h
🌧️ Total precip: 0.3 mm
☀️ UV Index: 1.3
🌅 Sunrise: 05:38 AM
🌇 Sunset: 06:44 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
19°
/
13°
🌧️ 88% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 7.9 km/h
🌧️ Total precip: 0.54 mm
☀️ UV Index: 1.3
🌅 Sunrise: 05:37 AM
🌇 Sunset: 06:45 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Sunny
20°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 7.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 05:36 AM
🌇 Sunset: 06:45 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Best Time to Visit Iwakuni
Plan your trip to Iwakuni, Japan around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Iwakuni?
Current conditions in Iwakuni: Partly cloudy, temperature 16°C, humidity 83%.
What is the best time to visit Iwakuni?
The best time to visit Iwakuni is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Iwakuni?
Iwakuni is located at approximately 34.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Iwakuni?
The wettest period in Iwakuni is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Iwakuni?
For visits to Iwakuni during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Iwakuni in 2026?
View the 2026 public holidays for Iwakuni on our Holidays page.
What are the GPS coordinates used for the weather forecast in Iwakuni?
The weather forecast for Iwakuni uses coordinates 34.1665, 132.2191.