Bien Hoa
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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.

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
*
* Data from: Ho Chi Minh City, Vietnam (22 KM, 13 Miles).

Bien Hoa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Bien Hoa - and find the best time to visit.

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 records 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 2026.

  • 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
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 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.

  • Swimming
    7/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    6/10
  • Outdoor sports
    7/10

Bien Hoa 3-Day Forecast

More climate data for Bien Hoa

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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