Sendai weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Sendai September weather at a glance
In September, Sendai averages 22.5°C, with typical highs of 26.5°C and lows of 18.8°C. The historical average is 17 wet days and 84% humidity.
Sendai September temperature & humidity
Sendai September rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Sendai in September
Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 17 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 26.5°C
- Morning & eveningLight layer for air-conditioned rooms · average low 18.8°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Sendai September sunrise & sunset times
2026 September · Local time (Asia/Tokyo)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 05:06 | 18:07 | 13h 1m |
| 2026-09-15 | 05:18 | 17:45 | 12h 28m |
| 2026-09-30 | 05:31 | 17:22 | 11h 51m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Best months to visit Sendai
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Sendai weather like in September?
In September, Sendai averages 22.5°C, with typical highs of 26.5°C and lows of 18.8°C. The historical average is 17 wet days and 84% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Sendai in September?
There are about 17 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Sendai in September?
Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 17 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
What are the best months to visit Sendai?
Recent weather data rates May, June, October, November among the more comfortable months.
Where can I check Sendai weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Sendai in September?
On 2026-09-15, calculated sunrise is 05:18 and sunset is 17:45 in local time (Asia/Tokyo). Times vary by date and terrain.
Sendai weather by month
More Japan destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations