Climate ▸Forecast ▸September ▸October ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Thalat Weather in September

September in Thalat brings very high temperatures around 32°C (90°F) during the day, dropping to 25°C (77°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in Thalat in September

Thalat is in the rainy season in September, with rain on around 19 days and an average of 376 mm (15 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Thalat in September

If you're visiting Thalat in September, expect highs of 32°C (90°F) and overnight lows around 25°C (77°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Thalat in September

The area enjoys a moderate level of sunlight, with around 168 hours. It's a good balance between sunny and rainy days.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Thalat. 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 Thalat's climate page.

Thalat Temperature in September

Min TemperatureMin Temperature 25°C (77°F)  
Max TemperatureMax Temperature 32°C (90°F)  
Chance of RainChance of Rain 63%  
PrecipitationPrecipitation 376 mm (15 in)  
Rainy daysRainy days 19 days  
HumidityHumidity 83% *  
SunshineSunshine 168 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Vientiane, Laos (62 KM, 38 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Thalat 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 Thalat in September

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

Thalat historical weather extremes in September

Based on weather observations in Thalat between 1986 and 2025, these are the recorded extremes during September.

  • On September 3, 1988, temperatures climbed to 39°C (102°F), marking the warmest September day on record.
  • Thalat experienced its chilliest September day on September 10, 2004, reaching only 25°C (77°F).
  • Nighttime temperatures dropped to 21°C (70°F) on September 21, 2006, marking the coldest September night on record.
  • The heaviest September precipitation occurred on September 2, 2014, when 164 mm (6.5 in) of precipitation fell.

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 Thalat 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Thalat 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 Thalat's climate page.

More climate data for Thalat