Bien Hoa Weather in September
With daytime temperatures of 32°C (90°F) and nighttime lows of 25°C (77°F), September in Bien Hoa brings very high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.
Rainfall in Bien Hoa in September
As part of the rainy season, Bien Hoa sees around 20 days of rain in September, with an average of 319 mm (13 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 Bien Hoa in September
September in Bien Hoa sees highs of 32°C (90°F) and lows of 25°C (77°F) overnight. It's usually most comfortable outside during the morning and later in the day. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Bien Hoa in September
The area experiences a moderate amount of sunshine, with approximately 163 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.
Average water temperature in September
The water is 29°C (84°F) — very warm by most standards. Comfortable to swim in, but not particularly refreshing if you're looking to cool off.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and December typically offer the best weather for Bien Hoa.
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 Bien Hoa's climate page.
Bien Hoa Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
32°C (90°F)
Water Temperature
29°C (84°F) *
Chance of Rain
65%
Precipitation
319 mm (13 in)
Rainy days
20 days
Humidity
85% *
Sunshine
163 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bien Hoa typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Historical weather for Bien Hoa in September
Browse day-by-day weather records for Bien Hoa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bien Hoa historical weather extremes in September
The extremes listed below come from historical weather data collected in Bien Hoa from 1987 through 2025.
- The warmest day in September was on September 7, 2015, with a maximum of 35°C (95°F).
- Bien Hoa experienced its chilliest September day on September 29, 1999, reaching only 25°C (77°F).
- The lowest overnight temperature recorded in September was 19°C (66°F) (September 22, 2010).
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
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tolerable
unpleasant
poor
What to Wear in Bien Hoa 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! The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Bien Hoa 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 Bien Hoa's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Bien Hoa climate overview or explore weather in Vietnam.
