Japan Fukuoka Weather in September — Climate Guide
September in Fukuoka is high
Fukuoka Weather in September — Quick Answer
As of 2026- Avg temp
- 28° / 21°
- Rainfall
- 175mm · 11 days
- Crowds
- Moderate
As of 2026, Fukuoka in September averages a high of 28°C and low of 21°C with 175mm of rain over about 11 days. Still warm + humid. T-shirt + light layers. Light jacket for evening typhoon-cool nights. Compact umbrella + waterproof phone case for typhoon-track preparation. Comfortable walking shoes for autumn hiking start.
September is high for Fukuoka.
September is the typhoon-watch month and the transition from summer to autumn. Typhoons (1-2 per month possible) can disrupt JR Kyushu service for 12-48 hours each. Outside typhoon days, weather is mild (28°C / 82°F highs) and humidity drops gradually. Hotel pricing returns to mid-shoulder ($125-210/night) — better than August premium but not yet October autumn rates. Korean Chuseok week (varies, mid-Sept to early Oct) drives 1.5-2x fare spikes — post-Chuseok is the year's best value $210-380 round-trip. Late September starts the autumn season — Nokonoshima cosmos planting, first leaf-color changes in highlands.
Travel score
Summer's end + avoid Korean Chuseok week + typhoon season
September Weather at a Glance
September averages 82°F / 28°C highs and 70°F / 21°C lows — summer's end. Humidity 70% drops + 6 hours of sunshine. Typhoon season peaks (1-2 storms per month) — Fukuoka is often a direct-hit path. 11 rainy days, 175mm. Sea 26°C still swim-friendly.
September Travel Advice
Short sleeves + light cardigan. Track typhoon warnings — JR Kyushu service can pause 12-48 hours. Late September begins autumn season. Korean Chuseok week (varies) drives fares 1.5-2x. Travel insurance with typhoon-cancellation coverage recommended.
Flying In from Overseas
Korean Chuseok (varies by year, mid-September to early October) drives 1.5-2x fare spikes — Asia-Fukuoka $350-620 Chuseok week. Post-Chuseok is the year's best value $210-380. Western inbound starts to climb for autumn foliage.
September Pricing Trends
Summer peak end — Hakata Station 4-star $125-210/night. Chuseok week only sees temporary spike to $200-310. Post-Chuseok $90-160.
Fukuoka September Weather Stats
Avg High
28°C
Avg Low
21°C
Rainy Days
11
175mm total
Sunshine
6h
Daily avg
Humidity
70%
high
UV Index
7
High
Wind
9 km/h
Gusts 22
Sea Temp
26°C
swimming
Crowds
Moderate
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
16 μg/m³
PM10
26 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
31°C
Nighttime
22°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 22 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- 28°C still warm but humidity dropping
- Lower crowds than summer
- Shoulder pricing returns
- Post-Chuseok value window
Cons
- Typhoon risk peak (1-2 storms per month)
- Humid 70% still
- Variable weather (typhoon vs sunny days)
- Korean Chuseok week (varies) double-fares
September Events & Festivals
- Typhoon season peak (1-2 storms per month possible, watch JR Kyushu service)
- Autumn equinox holiday (Sept 22-23)
- Korean Chuseok (varies, mid-September to early October)
- Nokonoshima cosmos start late month
Fukuoka in September — Full Picture
September is the typhoon-watch month and the transition from summer to autumn. Typhoons (1-2 per month possible) can disrupt JR Kyushu service for 12-48 hours each. Outside typhoon days, weather is mild (28°C / 82°F highs) and humidity drops gradually. Hotel pricing returns to mid-shoulder ($125-210/night) — better than August premium but not yet October autumn rates. Korean Chuseok week (varies, mid-Sept to early Oct) drives 1.5-2x fare spikes — post-Chuseok is the year's best value $210-380 round-trip. Late September starts the autumn season — Nokonoshima cosmos planting, first leaf-color changes in highlands.
What to Wear & What to Pack
Still warm + humid. T-shirt + light layers. Light jacket for evening typhoon-cool nights. Compact umbrella + waterproof phone case for typhoon-track preparation. Comfortable walking shoes for autumn hiking start.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19°C
11°C
10/mo
Summer (Jun·Jul·Aug)
29.7°C
22.7°C
12.3/mo
Autumn (Sep·Oct·Nov)
Current22.7°C
15.7°C
8.7/mo
Winter (Dec·Jan·Feb)
11°C
4°C
8.7/mo
Fukuoka Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 10° | 3° | 9d·75mm | 4h | 65% | 2 | Quiet | Low season | |
| 11° | 4° | 8d·70mm | 5h | 65% | 3 | Quiet | Low season | |
| March (Best) | 15° | 7° | 10d·110mm | 6h | 65% | 4 | Busy | Peak |
| April (Best) | 19° | 11° | 10d·110mm | 7h | 65% | 5 | Very busy | Peak |
| 23° | 15° | 10d·130mm | 7h | 68% | 6 | Busy | Peak | |
| 26° | 19° | 14d·280mm | 5h | 75% | 7 | Quiet | Low season | |
| 31° | 24° | 14d·320mm | 5h | 75% | 9 | Very busy | Peak | |
| 32° | 25° | 9d·175mm | 6h | 73% | 9 | Busy | Peak | |
| 28° | 21° | 11d·175mm | 6h | 70% | 7 | Moderate | Shoulder | |
| October (Best) | 23° | 16° | 7d·80mm | 7h | 65% | 5 | Busy | Peak |
| November (Best) | 17° | 10° | 8d·90mm | 5h | 65% | 3 | Busy | Peak |
| 12° | 5° | 9d·75mm | 5h | 65% | 2 | Moderate | Shoulder |
View Other Months
Fukuoka September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Fukuoka?
Fukuoka in September is high. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Fukuoka in September?
Fukuoka September averages a high of 28°C and a low of 21°C.
Does it rain much in Fukuoka in September?
Fukuoka September averages 175mm of rainfall over about 11 rainy days.
What should I wear in Fukuoka in September?
Still warm + humid. T-shirt + light layers. Light jacket for evening typhoon-cool nights. Compact umbrella + waterproof phone case for typhoon-track preparation. Comfortable walking shoes for autumn hiking start.
What time are sunrise and sunset in Fukuoka in September?
Fukuoka September sunrise is 06:25 and sunset is 18:30, with 12h of daylight.
What's the air quality like in Fukuoka in September?
Fukuoka September air quality (AQI) averages 45, rated Good. PM2.5 averages 16μg/m³.
What activities are recommended in Fukuoka in September?
In September, Fukuoka is great for Itoshima coast (post-summer), Nokonoshima cosmos start, Yufuin + Beppu (cooler highlands).
Is September peak season in Fukuoka?
Fukuoka September crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Fukuoka
View Other Months
Planning a September trip to Fukuoka?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.