Alor Setar Weather in September
Alor Setar in September averages 31°C (88°F) during the day and 25°C (77°F) at night. September is part of the rainy season, so frequent rainfall is typical.
Rainfall in Alor Setar in September
Alor Setar is in the rainy season in September, with rain on around 21 days and an average of 270 mm (11 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Alor Setar in September
Expect highs of 31°C (88°F) in Alor Setar in September, with nights dropping to around 25°C (77°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and December typically offer the best weather for Alor Setar.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Malaysia, check out our Alor Setar's climate page.
Alor Setar Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
70%
Precipitation
270 mm (11 in)
Rainy days
21 days
Humidity
85% *
Daily Historical Temperatures
32-year average (1986-2025)
Based on our historical records, temperatures in Alor Setar typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
32-year average (1986-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Alor Setar in September
Browse day-by-day weather records for Alor Setar spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Alor Setar historical weather extremes in September
Based on 30 years of weather observations (1995-2025), these are the most extreme conditions recorded in Alor Setar.
- On September 19, 2015, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 24°C (75°F), recorded on September 21, 2017.
- Nighttime temperatures dropped to 16°C (61°F) on September 4, 2025, marking the coldest September night on record.
- Peak precipitation in September occurred on September 27, 1996, when 159 mm (6.3 in) of precipitation was measured.
Best Places in Malaysia in September
Find out more about the weather in Malaysia and which places have the best travel conditions in this month. See all of Malaysia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Alor Setar in September
Warm but pleasant conditions in Alor Setar in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.What To Do in Alor Setar in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Malaysia, check out our Alor Setar's climate page.
See the full Alor Setar climate overview or explore weather in Malaysia.
