Tainan - Guantian District Weather in September
September in Tainan - Guantian District brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 25°C (77°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.
Rainfall in Tainan - Guantian District in September
As part of the rainy season, Tainan - Guantian District sees around 15 days of rain in September, with an average of 266 mm (10 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in Tainan - Guantian District in September
If you're visiting Tainan - Guantian District in September, expect highs of 31°C (88°F) and overnight lows around 25°C (77°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 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Tainan - Guantian District in September
You can expect a moderate amount of sunlight, with approximately 179 hours. Even though this month is part of the wet season, you can still see the sun occasionally.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Tainan - Guantian District. 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 Taiwan, check out our Tainan - Guantian District's climate page.
Tainan - Guantian District Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
49%
Precipitation
266 mm (10 in)
Rainy days
15 days
Humidity
78%
Sunshine
179 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Tainan - Guantian District 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
50-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 Tainan - Guantian District in September
Browse day-by-day weather records for Tainan - Guantian District spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tainan - Guantian District historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Tainan - Guantian District.
- The warmest day in September was on September 4, 2010, with a maximum of 40°C (104°F).
- The lowest daytime temperature in September was 24°C (75°F), recorded on September 13, 1989.
- Nighttime temperatures dropped to 17°C (63°F) on September 6, 2000, marking the coldest September night on record.
Best Places in Taiwan in September
Find out more about the weather in Taiwan and which places have the best travel conditions in this month. See all of Taiwan in September →
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What to Wear in Tainan - Guantian District in September
Warm but pleasant conditions in Tainan - Guantian District 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Tainan - Guantian District 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 Taiwan, check out our Tainan - Guantian District's climate page.
Temperature Rainfall Sunshine Humidity
See the full Tainan - Guantian District climate overview or explore weather in Taiwan.
