Okayama, Japan Weather

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

Current conditions

Updated:
21°C
69.8°F
°C °F

Condition: Clear Sky

Pressure: 1,018 hPa

Feel like: 22 °C

Temperature: 21°C

Cloud: 12%

Humidity: 76%

Wind: NE - 4 km/h

Visibility: 27.12 km

Weather forecast

Sun
11 Oct
18°C / 24°C
Overcast
Mon
12 Oct
15°C / 26°C
Drizzle
Tue
13 Oct
14°C / 25°C
Moderate Drizzle
Wed
14 Oct
12°C / 22°C
Overcast
Thu
15 Oct
11°C / 23°C
Overcast
Hourly forecast today:
11:00 AM
16° / 21°
16° / 21°
Clear Sky
76% 12 km/h
12:00 PM
16° / 20°
16° / 20°
Clear Sky
76% 9 km/h
13:00 PM
15° / 19°
15° / 19°
Mainly Clear
76% 10 km/h
14:00 PM
14° / 19°
14° / 19°
Clear Sky
76% 10 km/h
15:00 PM
14° / 18°
14° / 18°
Mainly Clear
76% 10 km/h
16:00 PM
14° / 18°
14° / 18°
Mainly Clear
77% 10 km/h
17:00 PM
15° / 18°
15° / 18°
Mainly Clear
86% 11 km/h
18:00 PM
15° / 18°
15° / 18°
Mainly Clear
84% 12 km/h
19:00 PM
15° / 17°
15° / 17°
Clear Sky
85% 11 km/h
20:00 PM
14° / 17°
14° / 17°
Clear Sky
86% 11 km/h
21:00 PM
14° / 16°
14° / 16°
Clear Sky
89% 9 km/h

30 Day Averages and Extremes

  • Average high 23.6°C
  • Average low 15.47°C
  • Hottest day 28°C (30 September 2026)
  • Coldest day 11°C (15 October 2026)
  • Average humidity 76.83%
  • Days with precipitation 17 days
  • Highest precipitation 96 mm (27 September 2026)

Yesterday's Data

  • Max: 26°C
  • Min: 16°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Okayama over the next 12 hours

Temperature and possibility of rain in Okayama in the coming days

Rainfall in Okayama in the coming days

Okayama Climate Summary

Okayama features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 16.6ºC (61.88ºF), which is about 1.41% higher than the national average for Japan. Annually, the city experiences approximately 64.96 millimeters (2.56 inches) of rainfall, spread across 96.28 rainy days, accounting for 26.38% of the year.

Longitude 34.6555312
Latitude 133.919795
Yearly high temperature 18.82ºC (65.88ºF)
Yearly low temperature 12.91ºC (55.24ºF)
Hottest month July 28.79ºC (83.82ºF)
Coldest month January 2.88ºC (37.18ºF)
Yearly precip 64.96mm (2.56in)
Days with rainfall 96.28 days (26.38%)
Driest month November (71.28%)
Wettest month July (80.08%)

Weather averages by month

Month High / Low (°C) Rain
January 7.77° / 2.88° 3.0 days
February 8.65° / 3.13° 4.64 days
March 12.29° / 5.56° 6.55 days
April 17.02° / 9.78° 7.45 days
May 22.16° / 14.62° 7.91 days
June 24.93° / 18.76° 13.55 days
July 28.79° / 23.11° 15.27 days
August 30.72° / 24.82° 11.73 days
September 26.59° / 20.95° 10.82 days
October 21.3° / 15.56° 6.82 days
November 15.7° / 10.47° 4.09 days
December 9.91° / 5.26° 4.45 days

Okayama's weather

Frequently asked questions

1. What is the hottest month in Okayama?

July has the highest average monthly temperature (daily mean of 28.79ºC) and January are the coolest (daily mean of 2.88ºC).

2. What should I wear in Okayama today?

For today's very hot weather in Okayama, with the high temperatures above 27ºC (80.6ºF), consider wearing:
- Breathable shorts or skirts
- Sunscreen for skin protection
- UV-protective sunglasses
- Loose and airy fabrics like linen or cotton

Temperature

Early
18°C / 25°C
Morning
17°C / 22°C
Afternoon
14°C / 18°C
Evening
14°C / 16°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 480
  • CO 326
  • NH3 0
  • NO2 25
  • O3 97
  • PM10 31
  • PM25 30
  • SO2 13
  • CH4 1,619

Sunrise / Sunset

21:06
08:35