Live Weather & Forecast
Weather in Shimonoseki
Yamaguchi, Japan · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
61°F / Feels 61°F
Partly Cloudy
Shimonoseki, Yamaguchi
🌙 Nighttime
Updated: 2026-04-17 21:45
Humidity
78%
Wind
22 km/h ESE
Wind Gust
37.6 km/h
Pressure
1017 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
56%
Dew Point
12.4°C
Wind Degree
118°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
248.9 μg/m³
NO₂
16.6 μg/m³
O₃
96 μg/m³
SO₂
9.7 μg/m³
PM 2.5
12.7 μg/m³
PM 10
17.5 μg/m³
Weather Alerts 1
Met
· Moderate · Future
Wind Wave Advisory
(1) Wind Wave Advisory Announcement : 2026-04-16T08:00:00+09:00 Wind of 14m/s or more sustains for over 3 hours at sea or significant wave height is expected to be over 3m.
Today's Hourly Forecast
24-hour breakdown for Shimonoseki, Yamaguchi
12 AM
12°
Partly Cloudy
1 AM
12°
Clear
2 AM
12°
Clear
3 AM
12°
Partly Cloudy
4 AM
13°
Overcast
5 AM
14°
Clear
6 AM
14°
Sunny
7 AM
14°
Partly Cloudy
8 AM
15°
Partly Cloudy
9 AM
16°
Partly Cloudy
10 AM
16°
Partly Cloudy
11 AM
17°
Partly Cloudy
12 PM
18°
Partly Cloudy
1 PM
18°
Sunny
2 PM
19°
Patchy rain nearby
3 PM
18°
Partly Cloudy
4 PM
18°
Patchy rain nearby
5 PM
18°
Patchy rain nearby
6 PM
17°
Patchy rain nearby
7 PM
17°
Partly Cloudy
8 PM
17°
Partly Cloudy
9 PM
16°
Partly Cloudy
10 PM
16°
Cloudy
11 PM
16°
Partly Cloudy
3-Day Forecast
Daily overview for Shimonoseki, Yamaguchi
Today
Partly Cloudy
19°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 27.7 km/h
🌧️ Total precip: 0.04 mm
☀️ UV Index: 1.2
🌅 Sunrise: 05:44 AM
🌇 Sunset: 06:49 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Patchy rain nearby
19°
/
15°
🌧️ 88% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0.69 mm
☀️ UV Index: 1.1
🌅 Sunrise: 05:43 AM
🌇 Sunset: 06:49 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Sun, Apr 19
Sunny
21°
/
14°
🌧️ 0% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 05:41 AM
🌇 Sunset: 06:50 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Best Time to Visit Shimonoseki
Plan your trip to Shimonoseki, 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 Shimonoseki?
Current conditions in Shimonoseki: Partly Cloudy, temperature 16°C, humidity 78%.
What is the best time to visit Shimonoseki?
The best time to visit Shimonoseki is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Shimonoseki?
Shimonoseki is located at approximately 34° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Shimonoseki?
The wettest period in Shimonoseki is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Shimonoseki?
For visits to Shimonoseki during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Shimonoseki in 2026?
View the 2026 public holidays for Shimonoseki on our Holidays page.
What are the GPS coordinates used for the weather forecast in Shimonoseki?
The weather forecast for Shimonoseki uses coordinates 33.9577, 130.9415.