Kota Kinabalu weather in September
September in Kota Kinabalu: sweltering, soaked, with clean air — a fair time to visit.
#8 of 12 months in Kota Kinabalu · #549 of 604 destinations to visit in September · comfort 55/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Kota Kinabalu climate normals — September
| Daytime high | 29°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 280 mm / 11 in | ⛈ soaked |
| Rainy days | 25 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 8.8 h/day | |
| Daylight | 12.1 h | |
| Wind | 9 km/h / 5 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Kota Kinabalu?
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Kota Kinabalu in September — FAQ
- Is September a good time to visit Kota Kinabalu?
- September in Kota Kinabalu: sweltering, soaked, with clean air — a fair time to visit. It ranks #8 of 12 months for Kota Kinabalu on SeasonMap's comfort score (55/100).
- What is the weather like in Kota Kinabalu in September?
- In September, Kota Kinabalu averages a daily high of 29.3°C and a low of 24.6°C, with about 279.5 mm of rain over roughly 25.4 rainy days.
- What is the air quality in Kota Kinabalu in September?
- Kota Kinabalu has a mean US Air Quality Index of about 44 in September.