Climate averages 1991–2020
Alor Setar weather
in September.
A hot, very wet month: the 9th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Alor Setar: daytime highs average 29.4°C and nights cool to about 24.2°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 259 mm of rain on roughly 26 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 09 min on an average September day.
The nearest other city in this atlas is Pendang (19 km away). In September its highs average 29.5°C, about as warm as Alor Setar, with 254 mm of rain.
Among the 72 cities listed in Malaysia, Alor Setar ranks joint 41st of 72 for the warmest September highs and 70th of 72 for the driest September (rainfall, lowest first). The mean September high of those 72 cities is 29.6°C; Alor Setar is 0.1°C cooler than that mean.
From September to October, average highs fall by 0.4°C to 29.1°C, and monthly rainfall rises from 259 mm to 320 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
Alor Setar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.3°C23.5°C | 23.5°C | 53 | 9.2 | 11.812 h |
| February | 33.1°C24.0°C | 24.0°C | 60 | 9.8 | 11.912 h |
| March | 32.7°C24.6°C | 24.6°C | 132 | 18.4 | 12.112 h |
| April | 31.3°C24.8°C | 24.8°C | 193 | 25.7 | 12.312 h |
| May | 30.5°C25.0°C | 25.0°C | 243 | 25.9 | 12.412 h |
| June | 30.2°C24.9°C | 24.9°C | 184 | 21.3 | 12.512 h |
| July | 29.8°C24.6°C | 24.6°C | 190 | 22.2 | 12.412 h |
| August | 29.7°C24.5°C | 24.5°C | 232 | 23.6 | 12.312 h |
| September, selected | 29.4°C24.2°C | 24.2°C | 259 | 26.0 | 12.212 h |
| October | 29.1°C23.9°C | 23.9°C | 320 | 28.6 | 12.012 h |
| November | 29.1°C23.7°C | 23.7°C | 234 | 25.0 | 11.812 h |
| December | 29.3°C23.4°C | 23.4°C | 129 | 15.6 | 11.812 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
- Pendang in SeptemberMalaysia · 19 kmHigh 29.5°C · Low 23.8°C · 254 mm rain
- Sungai Petani in SeptemberMalaysia · 55 kmHigh 29.4°C · Low 24.1°C · 231 mm rain
- Kota Kuala Muda in SeptemberMalaysia · 59 kmHigh 29.5°C · Low 24.6°C · 242 mm rain
- Tasek Glugor in SeptemberMalaysia · 73 kmHigh 29.4°C · Low 23.9°C · 231 mm rain
- Butterworth in SeptemberMalaysia · 80 kmHigh 29.7°C · Low 24.2°C · 242 mm rain
- Paya Terubong in SeptemberMalaysia · 84 kmHigh 28.2°C · Low 24.0°C · 228 mm rain
- Bukit Mertajam in SeptemberMalaysia · 85 kmHigh 29.4°C · Low 23.8°C · 214 mm rain
- Kulim in SeptemberMalaysia · 87 kmHigh 29.3°C · Low 23.3°C · 214 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 Alor Setar) is explained once on the Alor Setar year overview and on the Sources, method and limits page.