Weather in Indonésie in září
Country-wide climate normals across 42 cities in Indonésie.
How Hot Is Indonésie in září?
Indonésie sees consistently hot September weather — average highs of 31°C, average lows of 23°C, with minimal regional differences. Whether you're in Jakarta or one of the coastal cities, conditions feel broadly the same: hot, generally clear, with little night-time relief.
Sunshine in Indonésie in září
Dark, overcast days dominate Indonésie in September — Jakarta sees just 2.3h of sun a day, and the pattern is similar across most regions. Cloud cover is heavy and persistent, with even the brighter regions struggling to escape the gloom for long.
Does It Rain In Indonésie In září?
Heavy rain shapes Indonésie's September: Jakarta averages 173mm across 17 days, and most regions of the country see similar persistent wet conditions. Long sunny stretches are rare. Expect rain on roughly two out of every three days.
Is Indonésie Humid In září?
Indonésie feels humid through September: 74% in Jakarta, similar nationwide. Warm days feel several degrees hotter than the thermometer suggests, and morning mist or post-rain steam is common. Drier upland or interior regions may feel a bit less oppressive.
Wind In Indonésie In září
Light breezes are typical across Indonésie in September: 12 kph in Jakarta, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In Indonésie In září
Indonésie sees mostly cloudy weather through September: Jakarta averages 68% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.