Miri Weather in September
During September, Miri experiences very high daytime temperatures of 30°C (86°F) and cooler nights around 26°C (79°F). September sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Miri in September
Miri is in the rainy season in September, with rain on around 21 days and an average of 216 mm (8.5 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Miri in September
Temperatures in Miri in September top out at 30°C (86°F) and drop to 26°C (79°F) overnight. It's usually most comfortable outside during the morning and later in the day. With overnight lows of 26°C (79°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Miri in September
The area enjoys a balanced 185 hours of sunlight, ensuring it's neither too rainy nor too sunny.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February typically offers the best weather for Miri.
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 Miri's climate page.
Miri Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
71%
Precipitation
216 mm (8.5 in)
Rainy days
21 days
Sunshine
185 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Miri typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Miri in September
Browse day-by-day weather records for Miri spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Miri historical weather extremes in September
Our historical data for Miri spans 1991 to 2025, revealing these weather extremes.
- On September 16, 2023, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- Miri experienced its chilliest September day on September 15, 2021, reaching only 25°C (77°F).
- The coldest night in September in Miri was on September 9, 2019, with a minimum of 21°C (70°F).
- Peak precipitation in September occurred on September 7, 2008, when 147 mm (5.8 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
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tolerable
unpleasant
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What to Wear in Miri in September
Warm but pleasant conditions in Miri 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Miri 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 Miri's climate page.
See the full Miri climate overview or explore weather in Malaysia.
