September · Malaysia
Best time to visit Kota Kinabalu in September Weather, crowds & prices
Weather in Kota Kinabalu in September
Average temperature 27°C, 403 mm of rain, about 24 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
4.6/10
Ranked #10 of 12 months
- Avg temp
- 27°C
- Rainfall
- 403 mm
- Humidity
- 80%
- Days with 6h+ sun
- 24
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Kota Kinabalu scores 4.6/10 for nature and wildlife travel - ranked #10 of 12. Expect around 27°C, 403 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Mount Kinabalu's granite massif rises behind Kota Kinabalu, with island-hopping and sunset-facing waterfront walks in town.
September in Kota Kinabalu — the hardest end of the year
Days in September average 27°C (80°F) and humidity near 80% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 403 mm, but with about 24 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 4.6/10 on the same scale — 10th of 12 months, versus 5.7/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Budget for low-season pricing, and crowds are light for this destination.
Frequently asked
- What is the weather like in Kota Kinabalu in September?
- In September, Kota Kinabalu averages 27°C, 403 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 4.6/10.
- Is September a good time to visit Kota Kinabalu?
- September earns a 4.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kota Kinabalu in September?
- Expect about 403 mm of rain in September. Average humidity is 80% and there are about 24 days with 6+ hours of sunshine.
Curated in Kota Kinabalu
Tickets & experiences
Things to do in Kota Kinabalu
Kota Kinabalu, Malaysia. Live activities and tours from GetYourGuide, matched to this destination.