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Dry season · averages 2021–2025

Bali weather in September

September is part of the dry season on the south coast: Seminyak and Kuta average 112 mm of rain over the month, with days of 29° and nights of 23°. Nusa Penida is the driest of the areas below (63 mm) and Canggu the wettest (162 mm). Up in Kintamani it is 22° by day and 14° at night.

September by area

Driest first. Averages for September over 2021–2025; sunrise and sunset on the 15th.
Bali weather in September by area, averages 2021–2025
AreaHighLowRainRain comparedSunriseSunset
Amed*East coast30.8°24.4°22 mm06:1018:14
Nusa PenidaOffshore islands29.7°24.4°63 mm06:1118:14
UluwatuSouth peninsula28.5°24.2°76 mm06:1318:16
MundukNorthern highlands25.9°18.1°100 mm06:1318:16
KintamaniVolcanic north22.1°13.7°109 mm06:1218:15
SeminyakWest coast28.7°23.2°112 mm06:1218:16
Sanur*East coast28.8°23.2°112 mm06:1218:15
UbudCentral valleys27.8°20.8°130 mm06:1218:15
CangguWest coast29.4°22.1°162 mm06:1218:16

* Amed: The nearest model cell lies on the slopes of Mount Agung, so these rain totals are likely higher than on the coast at Amed itself.

* Sanur: The model cells nearest Sanur are over the sea, so its past rain comes from the same land cell as Seminyak and the two match.

September, year by year

The same month can differ a lot. On the south coast September brought 34 mm in 2023 and 251 mm in 2025.
Rain in September for each year, 2021–2025, mm
Rain, mm20212022202320242025
Amed*391781730
Nusa Penida7080384680
Uluwatu8668527897
Munduk1471312561135
Kintamani1608510170129
Seminyak1121013463251
Sanur*1121013463251
Ubud1861205064228
Canggu15715452108337

September against the months around it

Planning a trip in September

Forecasts by MET Norway. Climate figures are averages for 2021–2025 from Open-Meteo open data (ECMWF IFS model, about a 9 km grid), corrected to each town’s altitude. They are good for comparing months and areas; one beach or valley can differ, and the model has more light drizzle than rain gauges record, so we show monthly totals rather than rainy days. 2021 to 2023 were La Niña years, which made Indonesia’s dry seasons wetter than usual, so these averages run a little wet against a long-term normal. Both sources CC BY 4.0, summarised by Baligasm.