Plan 7–10 days for a rewarding visit to Réunion Island; allow 10–14 days if you want longer hikes or a more relaxed pace. The best time for most travelers is May to November, when conditions are generally cooler and drier.
Mountain roads and hikes can take longer than distances on a map suggest, so avoid packing too much into each day.
Réunion has varied microclimates: the east is typically wetter, while the west is often drier. Check local forecasts before hikes, and book accommodation and rental cars ahead for busy periods.