Savannakhet Weather in September
September in Savannakhet averages 32°C (90°F) during the day and 24°C (75°F) at night. September is part of the rainy season, with around 275 mm (11 in) of rainfall and frequent showers.
Rainfall in Savannakhet in September
Savannakhet is in the rainy season in September, with rain on around 18 days and an average of 275 mm (11 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Savannakhet in September
Temperatures in Savannakhet in September top out at 32°C (90°F) and drop to 24°C (75°F) overnight. For most visitors, the main thing to prepare for is the heat during the day. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Savannakhet. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Laos, check out our Savannakhet's climate page.
Savannakhet Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
32°C (90°F)
Chance of Rain
58%
Precipitation
275 mm (11 in)
Rainy days
18 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Savannakhet typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
50-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 Savannakhet in September
Browse day-by-day weather records for Savannakhet spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Savannakhet historical weather extremes in September
Based on weather observations in Savannakhet between 1976 and 2025, these are the recorded extremes during September.
- On September 23, 1986, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- On September 27, 1997, Savannakhet saw its coldest September day with temperatures maxing out at 24°C (75°F).
- The coldest night in September in Savannakhet was on September 28, 2004, with a minimum of 19°C (66°F).
- The wettest day in September Savannakhet was on September 20, 2024 with 170 mm (6.7 in) of precipitation.
Best Places in Laos in September
Find out more about the weather in Laos and which places have the best travel conditions in this month. See all of Laos in September →
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What to Wear in Savannakhet in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.What To Do in Savannakhet 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 Laos, check out our Savannakhet's climate page.
See the full Savannakhet climate overview or explore weather in Laos.
