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Salvador sits in a tropical climate zone where high temperatures and very high humidity persist year-round. Monthly average temperatures typically range from 26–33°C with relative humidity between 75–90% across all seasons. In these conditions, outdoor air is often warmer and more humid than indoor air — meaning ventilation adds heat and moisture rather than removing it. Natural ventilation in Salvador serves mainly for air quality and CO₂ management rather than temperature reduction; air conditioning is the practical primary cooling tool.
The most useful ventilation windows in a tropical climate are during and immediately after rain events. Tropical showers temporarily lower both temperature and humidity, and the 30–60 minutes following a rainstorm are often the best outdoor conditions of the day. Morning hours before solar heating peaks — typically 5–8 AM — offer the lowest overnight temperatures of the day. Air quality is the primary variable to monitor: seasonal haze from agricultural burning, traffic particulates, and industrial pollution events can push AQI above safe ventilation thresholds even when temperatures would otherwise favour opening windows. The real-time AQI component of OpenWindow.live is especially important in tropical cities like Salvador.
A Salvador, i momenti migliori per ventilare sono di solito al mattino presto (5–8) e dopo il tramonto, quando la temperatura esterna scende sotto quella interna.
Sì, nella maggior parte dei casi. Aprire le finestre può abbassare la temperatura interna di 2–5°C in 30 minuti se l'aria esterna è più fresca.
Sopra l'80% di umidità, aprire le finestre rende l'aria appiccicosa. Meglio aspettare ore più asciutte.