Doc Let Weather in September
September in Doc Let sees daytime temperatures around 31°C (88°F) and lows of 26°C (79°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Doc Let in September
Doc Let is in the rainy season in September, with rain on around 20 days and an average of 187 mm (7.4 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.
Temperature in Doc Let in September
Doc Let in September gets highs of 31°C (88°F) during the day and drops to 26°C (79°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights stay warm at around 26°C (79°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Doc Let in September
Enjoy a sunny month with about 203 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.September in Doc Let has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Doc Let's climate page.
Doc Let Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
67%
Precipitation
187 mm (7.4 in)
Rainy days
20 days
Humidity
82% *
Sunshine
203 hours *
Percentage Sunshine
55% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Doc Let typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°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 Doc Let in September
Browse day-by-day weather records for Doc Let spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Doc Let historical weather extremes in September
Based on 32 years of weather observations (1993-2025), these are the most extreme conditions recorded in Doc Let.
- On September 5, 2019, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- Doc Let experienced its chilliest September day on September 21, 1997, reaching only 26°C (79°F).
- The coldest night in September in Doc Let was on September 15, 2022, with a minimum of 23°C (73°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
What to Wear in Doc Let in September
Warm but pleasant conditions in Doc Let 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Doc Let 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 Vietnam, check out our Doc Let's climate page.
Temperature Rainfall Sunshine Humidity
See the full Doc Let climate overview or explore weather in Vietnam.
