What is the weather like in Jakarta vs Surabaya in September?

In September, Jakarta averages 32°C high / 23°C low with about 84 mm of rain; Surabaya averages 33°C high / 25°C low with about 33 mm.

Jakarta vs Surabaya in September

Surabaya is the better pick in September — 72 vs 68 on SeasonMap's comfort score. Surabaya is sweltering, a little rain, while Jakarta is sweltering, rainy, poor air quality.

Jakarta vs Surabaya — September climate, side by side

	🇮🇩 Jakarta	🇮🇩 Surabaya
Comfort score	68/100 (C)	72/100 (B)
Feels-like high	37°C	37°C
Avg high / low	32° / 23°	33° / 25°
Rainfall	84 mm	33 mm
Rainy days	13	6
Humidity	76%	68%
Air quality (AQI)	165	76

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Jakarta vs Surabaya in September — FAQ

Is September better in Jakarta or Surabaya?: Surabaya is the better pick in September — 72 vs 68 on SeasonMap's comfort score. Surabaya is sweltering, a little rain, while Jakarta is sweltering, rainy, poor air quality.
What is the weather like in Jakarta vs Surabaya in September?: In September, Jakarta averages 32°C high / 23°C low with about 84 mm of rain; Surabaya averages 33°C high / 25°C low with about 33 mm.