An Hải Weather in September
An Hải in September averages 31°C (88°F) during the day and 26°C (79°F) at night. September is part of the rainy season, so frequent rainfall is typical.
Rainfall in An Hải in September
An Hải is in the rainy season in September, with rain on around 18 days and an average of 316 mm (12 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in An Hải in September
In September, An Hải sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 26°C (79°F). It's usually most comfortable outside during the morning and later in the day. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.
Sunshine in An Hải in September
You can expect a moderate amount of sunlight, with approximately 174 hours. Even though this month is part of the wet season, you can still see the sun occasionally.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit An Hải. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 An Hải's climate page.
An Hải Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
61%
Precipitation
316 mm (12 in)
Rainy days
18 days
Humidity
82% *
Sunshine
174 hours *
Percentage Sunshine
*
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in An Hải typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°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 An Hải in September
Browse day-by-day weather records for An Hải spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
An Hải historical weather extremes in September
Based on 32 years of weather observations (1993-2025), these are the most extreme conditions recorded in An Hải.
- An Hải recorded its highest September temperature of 38°C (100°F) on September 8, 2024.
- The lowest daytime temperature in September was 24°C (75°F), recorded on September 26, 2011.
- The lowest overnight temperature recorded in September was 20°C (68°F) (September 15, 2000).
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 An Hải in September
Warm but pleasant conditions in An Hải 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. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in An Hải 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 An Hải's climate page.
Temperature Rainfall Sunshine Humidity
See the full An Hải climate overview or explore weather in Vietnam.
