Đồng Hới Weather in September
Đồng Hới in September sees very high temperatures, with highs around 31°C (88°F) and overnight lows of 26°C (79°F). With the rainy season in full effect, expect around 374 mm (15 in) of rainfall and regular showers throughout the month.
Rainfall in Đồng Hới in September
As part of the rainy season, Đồng Hới sees around 17 days of rain in September, with an average of 374 mm (15 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Đồng Hới in September
September in Đồng Hới brings very high temperatures, with highs of 31°C (88°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. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Đồng Hới in September
The area experiences a moderate amount of sunshine, with approximately 178 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.September in Đồng Hới 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.
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 Đồng Hới's climate page.
Đồng Hới Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
57%
Precipitation
374 mm (15 in)
Rainy days
17 days
Humidity
82%
Sunshine
178 hours
Percentage Sunshine
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Đồng Hới typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows typically ranging from 24°C (75°F) to 26°C (79°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 for Đồng Hới in September
Browse day-by-day weather records for Đồng Hới spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Đồng Hới historical weather extremes in September
Based on weather observations in Đồng Hới between 1993 and 2025, these are the recorded extremes during September.
- The hottest September day on record in Đồng Hới reached 38°C (100°F) (September 7, 2015).
- The lowest daytime temperature in September was 22°C (72°F), recorded on September 27, 1997.
- The coldest night in September in Đồng Hới was on September 17, 2022, with a minimum of 18°C (64°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 Đồng Hới 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Đồng Hới 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 Đồng Hới's climate page.
Temperature Rainfall Sunshine Humidity
See the full Đồng Hới climate overview or explore weather in Vietnam.
