How accurate is the forecast for Iiyama?

Forecasts are pulled from leading meteorological models and refreshed automatically every 30 minutes. Short-range accuracy (next 24 hours) is typically within 1–2°C and 80–90% for precipitation.

How often is the data updated?

Current conditions and the hourly outlook refresh every 30 minutes; daily forecasts every hour.

What does the air-quality (AQI) value mean?

We display the European AQI on a scale from Good (0–20) to Extremely poor (>100), blending PM2.5, PM10, NO₂ and O₃.

Clima Map

Iiyama JP

July 23, 2026 · 1:33 am

30^°

Plutôt dégagé

Ressenti 35°C

Humidité: 71%
Vent: 11 km/h N
Pression: 1008 hPa
Cloud: 33%

July 28, 2026 · July 28, 2026

Orage

28°C · 22°C

Pluie : 4.8 mm · UV: 4.7 · Vent : 6 km/h

Météo proche

Villes près de Iiyama

Compare weather conditions in surrounding cities and open any local forecast instantly.

15.7 km Mure JP View forecast 16.4 km Kashiwabara JP View forecast 17.8 km Obuse JP View forecast 18.2 km Nakayama JP View forecast 21.9 km Myoko JP View forecast 22.7 km Suzaka JP View forecast 27.6 km Nagano JP View forecast 31.3 km Ōwarino JP View forecast

Weather notice Forecasts are for general planning. During severe weather, follow official alerts and local authority instructions.