Tainan - Guantian District
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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.

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

Tainan - Guantian District Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Tainan - Guantian District - and find the best time to visit.

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 records 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 50 years of weather observations (1976-2026), 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 →

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 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.

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

Tainan - Guantian District 3-Day Forecast

More climate data for Tainan - Guantian District

Popular in September

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

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.