Weather in Riunione in settembre
Country-wide climate normals across 15 cities in Riunione.
How Hot Is Riunione in settembre?
Riunione's September is consistently warm — typical 23°C, with no major regional outliers.
Sunshine in Riunione in settembre
Persistent cloud and grey skies define Riunione's September: about 2.2h of sun a day in Saint-Denis. Daylight is in short supply too, running from 6:15 am to 6:10 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Riunione In settembre?
Typical September rainfall covers Riunione: about 83mm in Saint-Denis across 14 days, with wetter conditions in coastal regions and drier conditions inland. Expect showers about half the days, but extended dry stretches between them. The pattern is variable but predictable.
Is Riunione Humid In settembre?
Saturated air defines Riunione's September: humidity at 76% in Saint-Denis, with the country as a whole feeling muggy and oppressive. The air practically drips after rain, and even shaded outdoor areas feel warm and clammy. Plan indoor time during the most humid afternoon hours.
Wind In Riunione In settembre
Riunione's September has gentle wind — Saint-Denis averages 16 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Riunione In settembre
Cloudy skies dominate Riunione in September — 71% cover in Saint-Denis, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.