🇯🇵 Weather in Onomichi
Map Overlays:
Hourly Forecast for Onomichi
04:00
21°
49%
05:00
21°
38%
06:00
20°
36%
07:00
21°
38%
08:00
23°
14%
09:00
24°
24%
10:00
25°
22%
11:00
26°
37%
12:00
24°
26%
13:00
23°
22%
14:00
21°
73%
15:00
21°
63%
16:00
19°
50%
17:00
18°
29%
18:00
18°
27%
19:00
18°
22%
20:00
16°
13%
21:00
16°
35%
22:00
17°
29%
23:00
15°
24%
00:00
15°
17%
01:00
14°
19%
02:00
14°
16%
03:00
13°
20%
14-Day Forecast for Onomichi
2026-10-21
Mist
26° /
15°
2026-10-22
Overcast
20° /
12°
2026-10-23
Overcast
19° /
10°
2026-10-24
Mist
19° /
16°
2026-10-25
Overcast
21° /
17°
2026-10-26
Light drizzle
24° /
18°
2026-10-27
Patchy rain nearby
22° /
12°
Additional Forecasts for Onomichi
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 113.0 μg/m³
O₃ (Ozone) 33.0 μg/m³
NO₂ (Nitrogen Dioxide) 17.8 μg/m³
SO₂ (Sulphur Dioxide) 11.3 μg/m³
PM2.5 (Fine particles) 7.3 μg/m³
PM10 (Coarse particles) 9.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Japan
Weather in Onomichi — FAQ
Answers refreshed each request based on current conditions in Onomichi.
What is the weather like right now in Onomichi?
Right now in Onomichi, Japan the temperature is 20.8°C (feels like 24.1°C), with mist. Relative humidity is 95% and wind is 3.6 km/h.
What is today's high and low temperature in Onomichi?
Today's forecast high in Onomichi is 26.2°C and the overnight low is 15.4°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Onomichi today?
The chance of precipitation in Onomichi today is 77%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Onomichi differ from nearby cities?
Even short distances can change temperatures noticeably. Onomichi's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.