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:
16°C
60.8°F
°C °F

Condition: Mainly Clear

Pressure: 951 hPa

Feel like: 17 °C

Temperature: 16°C

Cloud: 43%

Humidity: 93%

Wind: E - 2 km/h

Visibility: 0.36 km

Weather forecast

Tue
23 Jun
16°C / 19°C
Moderate Drizzle
Wed
24 Jun
16°C / 23°C
Slight Rain Showers
Thu
25 Jun
14°C / 23°C
Drizzle
Fri
26 Jun
12°C / 24°C
Overcast
Sat
27 Jun
15°C / 25°C
Overcast
Hourly forecast today:
17:00 PM
15° / 16°
15° / 16°
Mainly Clear
93% 15 km/h
18:00 PM
15° / 16°
15° / 16°
Mainly Clear
93% 15 km/h
19:00 PM
14° / 15°
14° / 15°
Partly Cloudy
94% 17 km/h
20:00 PM
14° / 15°
14° / 15°
Overcast
93% 17 km/h
21:00 PM
14° / 15°
14° / 15°
Mainly Clear
92% 15 km/h
22:00 PM
14° / 16°
14° / 16°
Partly Cloudy
91% 14 km/h
23:00 PM
15° / 17°
15° / 17°
Overcast
90% 9 km/h
00:00 AM
16° / 18°
16° / 18°
Partly Cloudy
85% 9 km/h
01:00 AM
16° / 21°
16° / 21°
Partly Cloudy
74% 16 km/h
02:00 AM
16° / 23°
16° / 23°
Mainly Clear
67% 23 km/h
03:00 AM
16° / 22°
16° / 22°
Partly Cloudy
67% 27 km/h

30 Day Averages and Extremes

  • Average high 22.17°C
  • Average low 15.67°C
  • Hottest day 27°C (03 July 2026)
  • Coldest day 0°C (06 July 2026)
  • Average humidity 80.8%
  • Days with precipitation 25 days
  • Highest precipitation 94 mm (19 June 2026)

Yesterday's Data

  • Max: 18°C
  • Min: 16°C
  • Total Precipitation: 5 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 warm weather in Yamaguchi, with temperatures between 20ºC to 23ºC (68.0ºF to 73.4ºF), you might consider wearing:
- T-shirt or short-sleeve blouse
- Sunglasses
- Cotton or linen fabrics
- Sun hat or cap

Temperature

Early
17°C / 18°C
Morning
16°C / 17°C
Afternoon
15°C / 16°C
Evening
14°C / 15°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 471
  • CO 106
  • NH3 0
  • NO2 3
  • O3 53
  • PM10 3
  • PM25 2
  • SO2 0
  • CH4 1,459

Sunrise / Sunset

20:02
10:29