Take China Group Tours in 2025 to enjoy 30% discount compared to a private tour. Same Experience & Lowest Price!
Taiwan Weather in September Overview: Hot, Muggy, with a Chance of Typhoons
September in Taiwan marks the end of summer, but it's still hot and humid. Average daily temperatures are 24-32°C, making it feel muggy (70%-80% humidity).
Rainfall is frequent, typically short, strong afternoon downpours lasting 1-2 hours. The good news? Morning rain probability is below 15% across Taiwan, especially in the south (Tainan, Kaohsiung) where humidity drops below 60% during the "autumn dry season," leading to sunny mornings!
For example, in September 2024, Taipei saw 70% of its rain concentrated between 2:00 PM and 5:00 PM.
You'll also notice regional differences: the North/Northeast tends to be wetter and more humid, while Central/Southern Taiwan sees alternating sun and rain. High mountain areas like Alishan are much cooler, with average daily temperatures around 20°C.
Good news on the crowd front! September isn't our peak tourist season, so crowds are moderate. However, the Mid-Autumn Festival (which usually falls September) is a big deal here, so expect more local families out and about. It adds a wonderful festive vibe, though!
Regarding typhoons, there's a 60%-70% chance they might occur. Typhoons usually affect an area for 3-5 days. Eastern Taiwan (Hualien, Taitung) sees the highest risk of direct landfall.
Taipei Weather in September: Wet & Hot, Typhoon Risk High, Great for Indoor Sites & Night Markets
| Avg. Temp | Rainy Days | Typhoon Prob. | Crowing |
|---|---|---|---|
| 25-31°C | 14 days (afternoon thunderstorms, 70% of daily rain) | High (Northeastern monsoon + terrain) | ★★★☆ |
Taipei weather in September is hot (avg. 25-31°C, feels like 35°C, high UV) and wet (14 rainy days, afternoon thunderstorms, 360mm).
Typhoon risk is high, potentially closing mountain trails/gondola. Crowds are steady, but Daan Forest Park and Taipei 101 get busier around Mid-Autumn Festival.
Taichung Weather in September: Most Rainfall, But Rich Indoor Resources, Great Value
| Avg. Temp | Rainy Days | Typhoon Prob. | Crowing |
|---|---|---|---|
| 26-31°C | 16 days (afternoon rain less intense than north) | Medium-High (heavy rain risk) | ★★☆☆ |
Taichung in September is hot (26-31°C, high humidity), with 16 rainy and 12 cloudy days. Typhoon risk is medium-high, bringing heavy rain and potential localized flooding.
Yet, indoor attractions like the Science Museum remain unaffected. Tourists are fewer; accommodation is typically easy to book.
Tainan Weather in September: Relatively Dry, Best for Mid-Autumn Festival (Late Sept)
| Avg. Temp | Rainy Days | Typhoon Prob. | Crowing |
|---|---|---|---|
| 25-30°C | 4-8 days (brief afternoon showers, only 20% rain probability) | Medium (occasional heatwaves) | ★★☆☆ (slightly more for Mid-Autumn) |
In Tainan, September is hot (25-30°C), with "Autumn Tiger" heat possible. It's relatively dry (4 rainy days), humidity dropping below 60%. Medium typhoon risk; post-typhoon heat can occur.
Crowds increase at Confucius Temple/Anping Fort during Mid-Autumn, but weekdays are relaxed.
Alishan Weather in September: Cool Climate, But Typhoons May Disrupt Transport
| Avg. Temp | Rainy Days | Typhoon Prob. | Crowing |
|---|---|---|---|
| 15-20°C | Frequent showers (bring rain gear) | High (landslides/road closures) | ★★★☆ (summer crowds) |
Alishan weather in September is cool (15-20°C, bring jacket) with frequent showers and 80% fog (may spoil sunrise). Typhoon risk is extremely high; expect landslides, road/rail closures, and potential scenic area shutdowns. Prioritize safety.
It's busy in summer; some tourists avoid during typhoon season for city destinations.
What to Do in Taiwan in September: City Vibes, Indoor Fun, Night Markets, and the Moon Festival
1. Taipei's Indoor Gems: My Picks for Culture & Mid-Autumn Magic at NPM & Taipei 101
Looking for escapes from potential afternoon thunderstorms? You'll love these!
Spend your mornings at the National Palace Museum (NPM) in Taipei city, getting lost among incredible artifacts before the afternoon rains (remember, 70% chance after 2 PM!).
Afterward, why not head up to the Taipei 101 Observatory for stunning city views? Around Mid-Autumn Festival, it becomes even more magical for moon-gazing, completely unaffected by the weather!
My Linking Tip: These two are easily connected by MRT's Tamsui-Xinyi Line (about 40 mins). Oh, and bring a light jacket; the AC inside is always on!
Taipei City Map: Districts & Tourist Map with Attractions
2. Evening Delights in Taipei: My Go-To for Food Fun at Shilin Night Market
This is why I adore Shilin in Taiwan in September! The main walkways have rain covers, so the food party goes on even if it's pouring.
What should you try? You simply can't miss the grilled king oyster mushrooms and dàcháng bāoxiǎocháng (sausage in glutinous rice sausage).
And around Mid-Autumn Festival, keep your eyes peeled for special seasonal stalls selling lava custard mooncakes – they are yummy!
12 Best Taiwan Night Markets (+ 8 Must-try Night Markets Food)
Taiwan Famous Food: 13 Must-try Foods in Taiwan
3. Taipei Morning Route A: Catching Fresh Air & City Views from Elephant Mountain
Ready for some fresh air and stunning city views? Start your day early with a hike up Elephant Mountain (Xiangshan). It's a quick 30-minute climb to those famous rocks, offering amazing photos of Taipei 101, sometimes even shrouded in beautiful morning mist!
The trail is nicely shaded, making it quite comfortable even in Sept weather in Taiwan, and a brilliant addition to your Taiwan September itinerary.
4. Taipei Morning Route A: Dive into History at Longshan Temple & Ximending's Lively Pulse
Prefer a cultural morning? Start your day at Longshan Temple (opens 8 AM) for a serene experience.
Then, why not wander over to Ximending, especially the Red House cultural market? You'll easily beat the afternoon crowds and get to soak in different facets of Taipei's vibrant vibe!
It's a wonderful blend of history and modern energy to enjoy in Taiwan in September.
5. Beyond Taipei: My Favorite Scenic Day Trips to Yehliu, Shifen & Jiufen (Fingers Crossed for Sunshine!)
If the sun is out, this is my favorite day trip from Taipei! The route: Yehliu Geopark → Shifen Waterfall → Shifen Old Street → Jiufen Old Street.
Start early at Yehliu Geopark to see the "Queen's Head" rock before the crowds. Then, head to Shifen Waterfall (it's even more magnificent after some rain!) and release a sky lantern at Shifen Old Street. Finish your afternoon in the enchanting Jiufen Old Street, perhaps catching the sunset from a rooftop terrace.
What if a typhoon warning closes Yehliu due to Taiwan weather in September? No worries! Head to the Keelung Chaojing Park Smart Ocean Pavilion for a cool AR interactive marine exhibit instead. Always good to have a backup, right?
How to Get to Jiufen (Jiufen Old Street) from Taipei? (4 Ways)
How Many Days in Taipei: Itinerary for Taipei [1,2,3,4 & 5 Days]
20 Must Do in Taipei: Top Things to Do & Non-Touristy Spots
6. Tainan's Confucius Temple: Confucius Ceremony & Mid-Autumn Evening
If you're here around September 28th, 2025, you have a chance to witness the solemn Confucius Ceremony!
It starts super early (5-7 AM), honoring ancient traditions. You'll see students in ancient attire performing the Yi dance and the solemn "Gate Opening Ceremony." You might even get "wisdom hair" – believed to bring intelligence!
My tip: arrive before 4:30 AM as entry is limited!
During Mid-Autumn evening (6:30-9 PM), enjoy Confucian lectures, a beautiful lantern poetry gathering by Pan Pond, or a rubbing experience. Imagine the moonlight on the old banyan tree and red walls – a peaceful and profound experience unique to Taiwan in September.
If heavy rain hits, some events might be simplified or moved indoors!
15 Tainan Things to Do & See [With Tainan Itinerary Guide]
7. Tainan City Walk: Strolling Historic Lanes & Savoring Night Market Flavors
Tainan is all about history and incredible Taiwan food, and I just know you'll love it!
I suggest a route: Anping Tree House → Anping Fort → Chihkan Tower → Tianhou Temple. Then, finish your day at Tainan's Garden Night Market for dinner!
Treat yourself to freshly grilled autumn crab or sticky rice with blue crab, paired with some "Chang'e Red Bean Soup" – perfect for a Taiwan in September evening!
Tainan Maps: City, Tourist, Food Map & More (2025)
8. Taichung's Indoor Fun: My September Rainy Day Picks - New Aquarium, Science & Illusions
If you find yourself in Taichung on a rainy day, don't fret!
We have some nice indoor options: You'll love the Illusion Museum for super fun photos. For a marine adventure, check out the brand-new Taichung Aquarium with its ocean zones and jellyfish theater.
Or, spend a great half-day at the Taichung Theater, with its awesome architecture.
These are perfect indoor escapes for your Taiwan September itinerary!
Top Things to Do in Taichung: Night Markets, Day Trips
9. Taichung Fengjia Night Market: Let's Feast on September Mid-Autumn Treats & More!
This is my favorite night market in Taichung, and I think you'll love it too!
Around Mid-Autumn Festival, definitely look out for special treats like "ice cream mooncakes" and refreshing "pomelo slushies."
My local tip: Try to go between 6:00 PM and 8:00 PM to avoid the biggest crowds.
And here's a little secret: enter from Shanxi Road entrance to skip the main street rush! It's a delicious must-do for your Taiwan in September trip!
Taichung Maps: Map of Taichung with Attractions, MRT, HSR Stations
10. Alishan: Our Go-To Cool September Mountain Escape (But Please, Stay Safe from Typhoons!)
Alishan in September offers a cool escape (15-20°C), so bring a light down jacket!
My favorite Alishan hiking route A: From Zhaoping Station, explore Sister Ponds, Three Brothers, Four Sisters, Golden Pig Blessing, Forever Love Trees, Magnolia Garden, and Shoujhen Temple, finishing at Xianglin Service Area.
Route B (optional): Continue from Shoujhen Temple to the Three Generations Tree, Xianglin Elementary School, Xianglin Sacred Tree, Alishan Museum, Cihyun Temple, and the Alishan Sacred Tree Remains.
Heads up! Alishan often sees showers (so pack rain gear!) and thick fog (80% chance, could hide your sunrise). Typhoon risk is high; expect landslides/closures. Scenic area might close for your safety.
Therefore, many travelers pick cities over mountains in Taiwan in September during typhoon season.
Alishan Taiwan Map: Day Trip, Train, Trail Map of Alishan (2025)
How to Plan a Fun & Safe Taiwan September Itinerary?
- Step 1. Time Management
For your Taiwan September itinerary, be flexible! I suggest building in 2-3 extra "flex days." Prioritize outdoor activities 6-10 AM, then indoor attractions in the afternoon, and night markets.
- Step 2. Transportation Backups
For getting around, always have some backups! Check app "Taiwan Railways e-booking" for HSR/train updates during typhoons. MRT and YouBike are reliable in cities. Alternatively, consider Asia Odyssey Travel's car service for safety.
- Step 3. My Itinerary Recommendations
For shorter trips within 5 days, I usually stick to urban areas. You just don't know what mountain roads or parks might be closed due to Taiwan weather in September.
▶ If you base in Taipei, consider this Taiwan September itinerary:
| Day | Where to Go | What to Do | Where to Stay |
|---|---|---|---|
| 1 | Taipei Arrival | / | Taipei |
| 2 | Taipei | Yehliu Geopark - Jiufen Old Street - Shifen Waterfall - Shifen Old Street (Sky Lanterns) | Taipei |
| 3 | Taipei | Beitou Hot Spring Museum - Thermal Valley - Tamsui Cultural Tour (Hobe Fort - Little White House - Fisherman's Wharf) | Taipei |
| 4 | Taipei | National Palace Museum - Dihua Street - Chiang Kai-shek Memorial Hall - Taipei 101 (exterior) | / |
▶ If you base in Tainan and Kaohsiung, follow this Taiwan September itinerary plan:
| Day | Where to Go | What to Do | Where to Stay |
|---|---|---|---|
| 1 | Kaohsiung Arrival | Lotus Pond, Pier-2 Art Center - Cijin Ferry - Cijin Old Street - Cijin Lighthouse | Kaohsiung |
| 2 | Kaohsiung to Tainan | Anping Tree House - Anping Fort - Anping Old Street - Chihkan Tower - Tianhou Temple - Tainan Confucius Temple - Tainan Garden Night Market | Tainan |
| 3 | Tainan to Kaohsiung | Fo Guang Shan Buddha Museum | / |
▶ If Taiwan weather in September is on our side, you can definitely see a lot!
Spend about 4 days up north in Taipei, maybe a day at Sun Moon Lake, another day for Alishan, and then 2 days down south in Tainan/Kaohsiung.
Here’s a detailed look at a more extensive Taiwan September itinerary:
| Day | Where to Go | What to Do | Where to Stay |
|---|---|---|---|
| 1 | Taipei Arrival | / | Taipei |
| 2 | Taipei | Yehliu Geopark, Jiufen Old Street, Shifen Waterfall, Shifen Old Street (including sky lantern release) | Taipei |
| 3 | Taipei | Beitou Hot Spring Museum - Thermal Valley - Tamsui Cultural Tour (Hobe Fort - Red Castle - Little White House - Fisherman's Wharf) | Taipei |
| 4 | Taipei | National Palace Museum (closed Mondays), Dihua Street, Chiang Kai-shek Memorial Hall, Taipei 101 (exterior) | Taipei |
| 5 | Taipei to Sun Moon Lake | DIY Pineapple Cake, Sun Moon Lake (boat tour) | Sun Moon Lake |
| 6 | Sun Moon Lake to Alishan | Tea Ceremony (high mountain tea), Alishan National Forest Recreation Area (forest train & hiking) | Chiayi |
| 7 | Chiayi to Kaohsiung | Hinoki Village, Fo Guang Shan Buddha Museum (closed Tuesdays), Cijin Old Street | Kaohsiung |
| 8 | Kaohsiung | Lotus Pond | / |
Travel with Asia Odyssey Travel to Find the Best Taiwan in September
While September in Taiwan might bring a little typhoon risk, we hope this guide showed you how to enjoy a fun & safe journey by focusing on city vibes, indoor fun and night markets.
Curious about other times? We've got more Taiwan Weather Guides like Taiwan Weather in January, Taiwan Weather in March, Taiwan Weather in June, and Taiwan Weather in December, ready to help you plan year-round!
To make your trip stress-free, whether it's this September or any other month, consider letting Asia Odyssey Travel be your go-to.
We offer such diverse Taiwan tour types, from budget Taiwan group tours to specialized adventures like Taipei tours, Kaohsiung tours, Sun Moon Lake tours or Alishan tours, and even delicious Taiwan food tours!
With our local knowledge, we'll make sure every detail is perfectly handled and safe, so you can just relax and fall in love with Taiwan.
Data in submission...
