How accurate is the forecast for Sannois?

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

Sannois FR

June 29, 2026 · 2:18 am

18^°

Nublado

Sensación 16°C

Humedad: 61%
Viento: 14 km/h NW
Presión: 1025 hPa
Cloud: 100%

Índice UV

Bajo

No protection needed.

Clima cercano

Ciudades cerca de Sannois

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

2.1 km Argenteuil FR View forecast 2.2 km Franconville FR View forecast 2.7 km Ermont FR View forecast 2.8 km Saint-Gratien FR View forecast 3.3 km Cormeilles-en-Parisis FR View forecast 3.9 km Le Plessis-Bouchard FR View forecast 4 km Montigny-lès-Cormeilles FR View forecast 4.1 km Eaubonne FR View forecast

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