🇯🇵 Weather in Oyama
Map Overlays:
Hourly Forecast for Oyama
09:00
22°
95%
10:00
21°
89%
11:00
22°
89%
12:00
21°
89%
13:00
22°
87%
14:00
21°
83%
15:00
21°
83%
16:00
21°
94%
17:00
21°
91%
18:00
21°
89%
19:00
22°
42%
20:00
22°
83%
21:00
22°
80%
22:00
22°
37%
23:00
22°
36%
00:00
22°
36%
01:00
22°
23%
02:00
22°
38%
03:00
22°
41%
04:00
22°
41%
05:00
22°
38%
06:00
22°
38%
07:00
22°
32%
08:00
23°
30%
14-Day Forecast for Oyama
2026-09-07
Heavy rain
23° /
21°
2026-09-08
Mist
24° /
22°
2026-09-09
Light rain shower
24° /
20°
2026-09-10
Light rain shower
21° /
20°
2026-09-11
Patchy rain nearby
22° /
19°
2026-09-12
Patchy rain nearby
24° /
20°
2026-09-13
Patchy rain nearby
31° /
22°
Additional Forecasts for Oyama
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 198.0 μg/m³
O₃ (Ozone) 33.0 μg/m³
NO₂ (Nitrogen Dioxide) 5.8 μg/m³
SO₂ (Sulphur Dioxide) 1.9 μg/m³
PM2.5 (Fine particles) 0.8 μg/m³
PM10 (Coarse particles) 0.9 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Japan
Weather in Oyama — FAQ
Answers refreshed each request based on current conditions in Oyama.
What is the weather like right now in Oyama?
Right now in Oyama, Japan the temperature is 22.1°C (feels like 24.9°C), with heavy rain. Relative humidity is 99% and wind is 9.4 km/h.
What is today's high and low temperature in Oyama?
Today's forecast high in Oyama is 23.4°C and the overnight low is 20.8°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Oyama today?
The chance of precipitation in Oyama today is 94%. 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 Oyama differ from nearby cities?
Even short distances can change temperatures noticeably. Oyama'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.