Climate averages 1991–2020
Johor Bahru weather
in September.
A hot, wet month: the 7th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Johor Bahru: daytime highs average 28.9°C and nights cool to about 24.5°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 170 mm of rain on roughly 24 days, which makes September a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average September day.
The nearest other city in this atlas is Woodlands (5 km away). In September its highs average 28.5°C, about as warm as Johor Bahru, with 170 mm of rain.
Among the 72 cities listed in Malaysia, Johor Bahru ranks joint 64th of 72 for the warmest September highs and joint 20th of 72 for the driest September (rainfall, lowest first). The mean September high of those 72 cities is 29.6°C; Johor Bahru is 0.7°C cooler than that mean.
From September to October, average highs rise by 0.1°C to 29.0°C, and monthly rainfall rises from 170 mm to 242 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Johor Bahru climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.3°C23.6°C | 23.6°C | 201 | 21.7 | 12.012 h |
| February | 29.0°C23.8°C | 23.8°C | 133 | 17.3 | 12.112 h |
| March | 29.6°C24.1°C | 24.1°C | 209 | 23.5 | 12.112 h |
| April | 29.6°C24.6°C | 24.6°C | 242 | 27.5 | 12.112 h |
| May | 29.4°C25.0°C | 25.0°C | 217 | 28.0 | 12.212 h |
| June | 29.2°C25.0°C | 25.0°C | 173 | 24.8 | 12.212 h |
| July | 28.7°C24.8°C | 24.8°C | 162 | 24.0 | 12.212 h |
| August | 28.7°C24.7°C | 24.7°C | 167 | 24.8 | 12.212 h |
| September, selected | 28.9°C24.5°C | 24.5°C | 170 | 23.7 | 12.112 h |
| October | 29.0°C24.3°C | 24.3°C | 242 | 26.4 | 12.112 h |
| November | 28.6°C24.0°C | 24.0°C | 334 | 28.4 | 12.112 h |
| December | 28.3°C23.8°C | 23.8°C | 313 | 27.3 | 12.012 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Woodlands in SeptemberSingapore · 5 kmHigh 28.5°C · Low 25.1°C · 170 mm rain
- Mukim Pulai in SeptemberMalaysia · 13 kmHigh 29.0°C · Low 24.6°C · 170 mm rain
- Jurong Town in SeptemberSingapore · 15 kmHigh 28.5°C · Low 25.1°C · 160 mm rain
- Ulu Tiram in SeptemberMalaysia · 16 kmHigh 29.2°C · Low 24.0°C · 170 mm rain
- Pasir Gudang in SeptemberMalaysia · 16 kmHigh 28.9°C · Low 24.6°C · 177 mm rain
- Iskandar Puteri in SeptemberMalaysia · 17 kmHigh 28.6°C · Low 25.1°C · 144 mm rain
- Taman Senai in SeptemberMalaysia · 20 kmHigh 29.2°C · Low 24.1°C · 170 mm rain
- Singapore in SeptemberSingapore · 22 kmHigh 28.2°C · Low 25.7°C · 160 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Johor Bahru) is explained once on the Johor Bahru year overview and on the Sources, method and limits page.
Mukim Pulai, Woodlands and Ulu Tiram lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.