Yamaguchi, Japan Weather
- Yamaguchi, Japan Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in Yamaguchi over the next 12 hours
- Temperature and possibility of rain in Yamaguchi in the coming days
- Rainfall in Yamaguchi in the coming days
- Yamaguchi Weather Summary
- Weather averages by month
- Yamaguchi's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Moderate Rain
Pressure: 950 hPa
Feel like: 32 °C
Temperature: 25°C
Cloud: 100%
Humidity: 95%
Wind: NW - 2 km/h
Visibility: 6.06 km
30 Day Averages and Extremes
- Average high 29.57°C
- Average low 21.4°C
- Hottest day 34°C (02 August 2026)
- Coldest day 19°C (17 August 2026)
- Average humidity 82.73%
- Days with precipitation 25 days
- Highest precipitation 52 mm (28 July 2026)
Yesterday's Data
- Max: 29°C
- Min: 23°C
- Total Precipitation: 13 mm
Temperature and possibility of rain in Yamaguchi over the next 12 hours
Temperature and possibility of rain in Yamaguchi in the coming days
Rainfall in Yamaguchi in the coming days
Yamaguchi Climate Summary
Yamaguchi features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 16.33ºC (61.39ºF), which is about 1.14% higher than the national average for Japan. Annually, the city experiences approximately 85.81 millimeters (3.38 inches) of rainfall, spread across 106.38 rainy days, accounting for 29.15% of the year.
| Longitude | 34.2796769 |
| Latitude | 131.5212742 |
| Yearly high temperature | 18.64ºC (65.55ºF) |
| Yearly low temperature | 12.31ºC (54.16ºF) |
| Hottest month | August 30.11ºC (86.2ºF) |
| Coldest month | January 2.87ºC (37.17ºF) |
| Yearly precip | 85.81mm (3.38in) |
| Days with rainfall | 106.38 days (29.15%) |
| Driest month | November (75.07%) |
| Wettest month | July (84.99%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | 7.83° / 2.87° | 5.82 days |
| February | 8.95° / 3.05° | 8.09 days |
| March | 12.38° / 5.52° | 8.64 days |
| April | 16.73° / 9.43° | 8.64 days |
| May | 21.76° / 13.85° | 8.27 days |
| June | 24.57° / 17.95° | 12.27 days |
| July | 28.2° / 22.18° | 13.64 days |
| August | 30.11° / 23.55° | 11.18 days |
| September | 26.24° / 19.82° | 9.82 days |
| October | 21.27° / 14.68° | 6.73 days |
| November | 15.84° / 9.9° | 5.64 days |
| December | 9.77° / 4.91° | 7.64 days |
Yamaguchi's weather
- Tokyo
- Osaka
- Kanagawa
- Hokkaido
- Aichi
- Tottori
- Shiga
- Saga
- Ehime
- Iwate
- Kagawa
- Aomori
- Ibaraki
- Tochigi
- Shimane
- Fukushima
- Ishikawa
- Mie
- Fukuoka
- Yamagata
- Miyazaki
- Shizuoka
- Okayama
- Nara
- Wakayama
- Miyagi
- Chiba
- Toyama
- Hiroshima
- Okinawa
- Fukui
- Kochi
- Yamanashi
- Saitama
- Kagoshima
- Akita
- Tokushima
- Niigata
- Kumamoto
- Kyoto
- Hyogo
- Nagasaki
- Gumma
- Gifu
- Oita
- Nagano
Frequently asked questions
1. What is the hottest month in Yamaguchi?
August has the highest average monthly temperature (daily mean of 30.11ºC) and January are the coolest (daily mean of 2.87ºC).
2. What should I wear in Yamaguchi today?
For today's very hot weather in Yamaguchi, with the high temperatures above 31ºC (87.8ºF), consider wearing:
- Light, natural fabrics (like cotton or linen)
- UV-blocking sunglasses
- Sleeveless tops or vests
- Broad-brimmed sun hat
Temperature
Air quality
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 445
- CO 175
- NH3 0
- NO2 2
- O3 119
- PM10 8
- PM25 7
- SO2 2
- CH4 1,491