🇯🇵 Weather in Iruma
Map Overlays:
Hourly Forecast for Iruma
05:00
22°
24%
06:00
21°
25%
07:00
22°
24%
08:00
23°
21%
09:00
24°
18%
10:00
26°
15%
11:00
28°
12%
12:00
30°
11%
13:00
30°
8%
14:00
31°
1%
15:00
30°
2%
16:00
29°
2%
17:00
27°
4%
18:00
26°
5%
19:00
26°
5%
20:00
26°
5%
21:00
25°
5%
22:00
25°
4%
23:00
25°
4%
00:00
24°
3%
01:00
24°
7%
02:00
23°
14%
03:00
22°
3%
04:00
22°
9%
14-Day Forecast for Iruma
2026-10-21
Overcast
31° /
21°
2026-10-22
Overcast
24° /
17°
2026-10-23
Overcast
20° /
16°
2026-10-24
Light rain
19° /
15°
2026-10-25
Partly Cloudy
25° /
17°
2026-10-26
Light drizzle
22° /
18°
2026-10-27
Overcast
23° /
16°
Additional Forecasts for Iruma
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 171.0 μg/m³
O₃ (Ozone) 56.0 μg/m³
NO₂ (Nitrogen Dioxide) 7.9 μg/m³
SO₂ (Sulphur Dioxide) 3.5 μg/m³
PM2.5 (Fine particles) 3.4 μg/m³
PM10 (Coarse particles) 4.4 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Japan
Weather in Iruma — FAQ
Answers refreshed each request based on current conditions in Iruma.
What is the weather like right now in Iruma?
Right now in Iruma, Japan the temperature is 21.8°C (feels like 24.1°C), with partly cloudy. Relative humidity is 80% and wind is 3.6 km/h.
What is today's high and low temperature in Iruma?
Today's forecast high in Iruma is 30.7°C and the overnight low is 21.4°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Iruma today?
The chance of precipitation in Iruma today is 9%. 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 Iruma differ from nearby cities?
Even short distances can change temperatures noticeably. Iruma'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.