Nikko weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Nikko September weather at a glance
In September, Nikko averages 20.3°C, with typical highs of 23.9°C and lows of 17.7°C. The historical average is 26 wet days and 88% humidity.
Nikko September temperature & humidity
Nikko 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 Nikko in September
T-shirts or long sleeves with one light outer layer should be comfortable. Rain is frequent at roughly 26 days in the month; pack a rain jacket and water-resistant shoes.
- DaytimeLong sleeves and a light jacket · average high 23.9°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 17.7°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Nikko September sunrise & sunset times
2026 September · Local time (Asia/Tokyo)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 05:12 | 18:11 | 12h 58m |
| 2026-09-15 | 05:23 | 17:50 | 12h 26m |
| 2026-09-30 | 05:36 | 17:27 | 11h 52m |
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 Nikko
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 Nikko weather like in September?
In September, Nikko averages 20.3°C, with typical highs of 23.9°C and lows of 17.7°C. The historical average is 26 wet days and 88% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Nikko in September?
There are about 26 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Nikko in September?
T-shirts or long sleeves with one light outer layer should be comfortable. Rain is frequent at roughly 26 days in the month; pack a rain jacket and water-resistant shoes.
What are the best months to visit Nikko?
No months meet the A or B threshold in our temperature-and-precipitation score. Compare the monthly values with your planned activities.
Where can I check Nikko 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 Nikko in September?
On 2026-09-15, calculated sunrise is 05:23 and sunset is 17:50 in local time (Asia/Tokyo). Times vary by date and terrain.
Nikko 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