Biên Hòa weather in September
September is one of the least pleasant months in Biên Hòa: highs of 30°C (85°F) and about 190 mm (7.5 in) of rain on average. Nights average 24°C (74°F) and cloud cover 89% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the coolest. Compared with August, it is about as warm and about as wet; October brings highs of 30°C (85°F) and 215 mm (8.5 in) of rain.
Is September a good time to visit Biên Hòa?
least pleasant month Weather score 51/100.
September is one of the least pleasant months for weather in Biên Hòa. For better conditions, consider Dec–Feb.
Does it rain a lot in Biên Hòa in September?
Yes, it is one of the rainy months: about 190 mm (7.5 in) falls in an average September. It is the 5th wettest month of the year.
How warm is Biên Hòa in September?
Days average 30°C (85°F) and nights 24°C (74°F).
Biên Hòa weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 32°C (90°F) | 20°C (69°F) | 11 mm | 58% | best |
| February | 35°C (95°F) | 21°C (70°F) | 6 mm | 44% | best |
| March | 37°C (98°F) | 23°C (73°F) | 13 mm | 49% | fair |
| April | 37°C (98°F) | 25°C (76°F) | 41 mm | 60% | least pleasant |
| May | 34°C (92°F) | 25°C (77°F) | 155 mm | 80% | least pleasant |
| June | 31°C (87°F) | 24°C (76°F) | 212 mm | 85% | least pleasant |
| July | 30°C (86°F) | 24°C (75°F) | 207 mm | 86% | least pleasant |
| August | 30°C (85°F) | 24°C (74°F) | 191 mm | 87% | least pleasant |
| September | 30°C (85°F) | 24°C (74°F) | 190 mm | 89% | least pleasant |
| October | 30°C (85°F) | 23°C (74°F) | 215 mm | 82% | least pleasant |
| November | 30°C (86°F) | 22°C (72°F) | 100 mm | 74% | fair |
| December | 30°C (87°F) | 21°C (70°F) | 32 mm | 72% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months