Yamaguchi, Japan Weather

  1. Yamaguchi, Japan Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Yamaguchi over the next 12 hours
  7. Temperature and possibility of rain in Yamaguchi in the coming days
  8. Rainfall in Yamaguchi in the coming days
  9. Yamaguchi Weather Summary
  10. Weather averages by month
  11. Yamaguchi's weather
  12. Frequently asked questions
  13. Comments
Yamaguchi, Weather
(Photo by Sora Sagano on Unsplash)

Current conditions

Updated:
3°C
37.4°F
°C °F

Condition: Partly Cloudy

Pressure: 957 hPa

Feel like: 1 °C

Temperature: 3°C

Cloud: 55%

Humidity: 86%

Wind: NNE - 2 km/h

Visibility: 24.14 km

Weather forecast

Mon
19 Jan
-1°C / 3°C
Overcast
Tue
20 Jan
-2°C / 2°C
Overcast
Wed
21 Jan
-4°C / 0°C
Overcast
Thu
22 Jan
-3°C / 1°C
Overcast
Fri
23 Jan
-3°C / 1°C
Overcast
Hourly forecast today:
17:00 PM
1° / 3°
1° / 3°
Partly Cloudy
86% 13 km/h
18:00 PM
1° / 3°
1° / 3°
Partly Cloudy
84% 13 km/h
19:00 PM
1° / 3°
1° / 3°
Clear Sky
84% 13 km/h
20:00 PM
1° / 3°
1° / 3°
Clear Sky
85% 13 km/h
21:00 PM
1° / 3°
1° / 3°
Clear Sky
86% 13 km/h
22:00 PM
1° / 3°
1° / 3°
Partly Cloudy
87% 13 km/h
23:00 PM
1° / 3°
1° / 3°
Partly Cloudy
88% 12 km/h
00:00 AM
1° / 4°
1° / 4°
Partly Cloudy
85% 13 km/h
01:00 AM
1° / 6°
1° / 6°
Mainly Clear
73% 15 km/h
02:00 AM
1° / 9°
1° / 9°
Mainly Clear
57% 18 km/h
03:00 AM
0° / 11°
0° / 11°
Mainly Clear
47% 21 km/h

30 Day Averages and Extremes

  • Average high 5.27°C
  • Average low -0.27°C
  • Hottest day 13°C (15 January 2026)
  • Coldest day -4°C (21 January 2026)
  • Average humidity 66.5%
  • Days with precipitation 17 days
  • Highest precipitation 32 mm (27 January 2026)

Yesterday's Data

  • Max: 11°C
  • Min: 2°C
  • Total Precipitation: 0 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

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 cool weather in Yamaguchi, with temperatures between 9ºC to 12ºC (48.2ºF to 53.6ºF), you should consider wearing:
- Casual shoes or sneakers
- Cotton socks
- Knit hat (optional for cooler mornings)
- Comfortable pants or jeans

Temperature

Early
-3°C / 9°C
Morning
3°C / 8°C
Afternoon
1°C / 3°C
Evening
1°C / 3°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 490
  • CO 358
  • NH3 0
  • NO2 19
  • O3 27
  • PM10 12
  • PM25 11
  • SO2 4
  • CH4 1,508

Sunrise / Sunset

22:18
08:30