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Louang Namtha Weather in September
September in Louang Namtha sees daytime temperatures around 30°C (86°F) and lows of 22°C (72°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Louang Namtha in September
As part of the rainy season, Louang Namtha sees around 18 days of rain in September, with an average of 210 mm (8.3 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Louang Namtha in September
Expect highs of 30°C (86°F) in Louang Namtha in September, with nights dropping to around 22°C (72°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing.September in Louang Namtha has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Louang Namtha Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
30°C (86°F)
Chance of Rain
60%
Precipitation
210 mm (8.3 in)
Rainy days
18 days
Louang Namtha Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Louang Namtha - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Louang Namtha typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 22°C (72°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 records for Louang Namtha in September
Browse day-by-day weather records for Louang Namtha spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Louang Namtha historical weather extremes in September
Our historical data for Louang Namtha spans 1976 to 2026, revealing these weather extremes.
- The hottest September day on record in Louang Namtha reached 39°C (102°F) (September 8, 2018).
- On September 27, 1997, Louang Namtha saw its coldest September day with temperatures maxing out at 19°C (66°F).
- Nighttime temperatures dropped to 16°C (61°F) on September 30, 2013, marking the coldest September night on record.
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Louang Namtha in September
Warm but pleasant conditions in Louang Namtha 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 Louang Namtha in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Louang Namtha 3-Day Forecast
More climate data for Louang Namtha
See the full Louang Namtha climate overview or explore weather in Laos.
Popular in September
Where to go in September - average daytime high across popular destinations.
Ban Dondét
32°C (90°F) Vientiane33°C (91°F) Thakhek32°C (90°F) Savannakhet32°C (90°F) Pakse31°C (88°F) Luang Prabang30°C (86°F) Louang Namtha30°C (86°F) Vang Vieng30°C (86°F) Bucket list
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