Visit Sapa in Vietnam
Balancing on the edges of a rice field with endless views. A trek through the valley of Sapa is definitely a must for the bucket list.
Lang Co Weather in September
Lang Co in September sees very high temperatures, with highs around 30°C (86°F) and overnight lows of 26°C (79°F). With the rainy season in full effect, expect around 380 mm (15 in) of rainfall and regular showers throughout the month.
Rainfall in Lang Co in September
As part of the rainy season, Lang Co sees around 19 days of rain in September, with an average of 380 mm (15 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in Lang Co in September
September in Lang Co brings very high temperatures, with highs of 30°C (86°F) and nights around 26°C (79°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With lows around 26°C (79°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Lang Co in September
With about 174 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.September in Lang Co can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Lang Co Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
62%
Precipitation
380 mm (15 in)
Rainy days
19 days
Humidity
82% *
Sunshine
174 hours *
Percentage Sunshine
*
* Data from: Da Nang, Vietnam (24 KM, 15 Miles).
Lang Co Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lang Co - and find the best time to visit.
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Lang Co typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
48-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 Lang Co in September
Browse day-by-day weather records for Lang Co spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lang Co historical weather extremes in September
Based on 33 years of weather observations (1993-2026), these are the most extreme conditions recorded in Lang Co.
- The hottest September day on record in Lang Co reached 38°C (100°F) (September 8, 2024).
- On September 26, 2011, Lang Co saw its coldest September day with temperatures maxing out at 24°C (75°F).
- The coldest night in September in Lang Co was on September 15, 2000, with a minimum of 20°C (68°F).
Best Places in Vietnam in September
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam 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 Lang Co in September
Warm but pleasant conditions in Lang Co 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. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Lang Co in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Lang Co 3-Day Forecast
More climate data for Lang Co
Temperature Rainfall Sunshine Humidity
See the full Lang Co climate overview or explore weather in Vietnam.
Popular in September
Where to go in September - average daytime high across popular destinations.
Ho Chi Minh City
32°C (90°F) Hanoi33°C (91°F) Nha Trang31°C (88°F) Hoi An32°C (90°F) Da Nang31°C (88°F) Vung Tau30°C (86°F) Duong Dong29°C (84°F) Da Lat26°C (79°F) Bucket list
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