September 15 is generally a great time to visit Taipei. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 30°C weather. As it's peak season for Taipei, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Taipei
Currency
TWD
$ New Taiwan dollar
Language
Chinese
Driving
Right side
Connect
The freeiTaiwanis available all over the...
Safety
High Safety
GPI: 1.618
Taipei Weather Forecast for September 15
"Warm & Sunny. Expect average highs of 30.4°C. 32% chance of rain."
What to Wear in Taipei in September
Based on historical data for September 15, Taipei typically experiences temperatures between 24.1°C and 30.4°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 32% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Taipei
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
30.4°C
Daytime Peak
Average Low
24.1°C
Nighttime Low
Feels Like
39.5°C
🔥 Heat index effect
Rain Chance
32%
Avg 3.3mm if it rains
Cloud Cover
55%
Light drizzle
Pressure
1008.5 hPa
Low volatility
Taipei Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 83% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 24 min to burn
Type III-IV
🟡 36 min to burn
Type V-VI
🟢 60 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
27°C
Humid/Sticky
Heat Index
39.5°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Taiwan
Flight Traffic
High
92/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~623
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Taipei
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:40
☀️ Noon
11:50
🌇 Sunset
18:00
⏱️ Daylight
12h 19m
Wind Speed
19.6 km/h
Gentle breeze
Sunshine
10.0 hrs
Direct Sun (Cloud-free)
Humidity
82%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Taipei
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Taipei
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Very high seismic risk. Ring of Fire territory.
Typhoon Risk
Year-round risk present
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Taipei on September 15 averages 30.4°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 84/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Taipei Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 18
30.1°C • 24% rain
Score
91
September 17
30.3°C • 22% rain
Score
89
September 19
29.8°C • 26% rain
Score
89
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Taipei Worth Visiting on September 15?
Planning a trip to Taipei on September 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 30.4°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 623 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 7 vaccinations are recommended for Taiwan, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 29.8°C (hot soup). Wave conditions are generally fun waves with heights around 0.95m.
📊 Historical Extremes: The hottest September 15 recorded in the last 30 years saw temperatures hit 36.4°C in 2025, while the coldest dropped to 23.2°C in 2022.