September · Japan
Best time to visit Nikko in September Weather, crowds & prices
Weather in Nikko in September
Average temperature 24°C, 236 mm of rain, about 12 days with 6+ hours of sunshine and 86% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
4.5/10
Ranked #11 of 12 months
- Avg temp
- 24°C
- Rainfall
- 236 mm
- Humidity
- 86%
- Days with 6h+ sun
- 12
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Nikko scores 4.5/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 24°C, 236 mm of rain, and roughly 12 days with 6+ hours of sunshine this month.
Nikko's shrines and cedar avenues sit in the mountains north of Tokyo as a UNESCO complex.
September in Nikko — the hardest end of the year
September averages 24°C (75°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
236 mm of rain puts this in monsoon territory — about 12 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 4.5/10 here, 11th of 12 months, against 7.1/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? April scores 2.6 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Nikko in September?
- In September, Nikko averages 24°C, 236 mm of rain, and about 12 days with 6+ hours of sunshine. Its climate-comfort score is 4.5/10.
- Is September a good time to visit Nikko?
- September earns a 4.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Nikko in September?
- Expect about 236 mm of rain in September. Average humidity is 86% and there are about 12 days with 6+ hours of sunshine.
Curated in Nikko
Tickets & experiences
Things to do in Nikko
Nikko, Japan. Live activities and tours from GetYourGuide, matched to this destination.