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Ban Keun Weather in September

Thinking of visiting Ban Keun in September? Expect very high temperatures reaching 32°C (90°F) during the day, dropping to 25°C (77°F) at night. Heavy showers are common during the rainy season.

Rainfall in Ban Keun in September

As part of the rainy season, Ban Keun sees around 19 days of rain in September, with an average of 379 mm (15 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Ban Keun in September

In September, Ban Keun gets very high temperatures, with highs of 32°C (90°F). Nights cool to around 25°C (77°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Ban Keun in September

The month brings about 168 hours of sunlight, offering a comfortable mix of sun and rainy moments.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Ban Keun. Our weather planner can help you explore destinations with more pleasant weather conditions.

Select a Month

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 Ban Keun's climate page.

Ban Keun Temperature in September

Min TemperatureMin Temperature 25°C (77°F)  
Max TemperatureMax Temperature 32°C (90°F)  
Chance of RainChance of Rain 64%  
PrecipitationPrecipitation 379 mm (15 in)  
Rainy daysRainy days 19 days  
HumidityHumidity 83% *  
SunshineSunshine 168 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Vientiane, Laos (46 KM, 28 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Ban Keun 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 Ban Keun in September

Browse day-by-day weather records for Ban Keun spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Ban Keun historical weather extremes in September

According to our 39 years of weather records for Ban Keun, the following extremes were recorded between 1986 and 2025.

  • The hottest September day on record in Ban Keun reached 39°C (102°F) (September 3, 1988).
  • The coldest September day was on September 10, 2004, with a maximum of 25°C (77°F).
  • Ban Keun registered its coldest September night on September 22, 2007, with temperatures dropping to 19°C (66°F).
  • Peak precipitation in September occurred on September 2, 2014, when 166 mm (6.5 in) of precipitation was measured.

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 →

Map not visible? Whoops sorry! Please refresh the page.
Legend 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 Ban Keun in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Ban Keun in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Select a Month

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 Ban Keun's climate page.

More climate data for Ban Keun