Niigata weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: May – July, September – October
What is the weather like in Niigata in October?
In October, Niigata is mild: daytime highs average 19 °C, and nights cool down to about 13 °C. The sea averages 22.0 °C – refreshing for a swim. Expect around 5 hours of sunshine a day. It rains often – on about 15 days, adding up to 147 mm. All in all, October is a good month for a holiday in Niigata.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 65 | 62 | 27 |
| Day | 25° | 19° | 13° |
| Night | 19° | 13° | 7° |
| Sea | 26° | 22° | 18° |
| Sun | 5 h | 5 h | 3 h |
| Rain days | 14 | 15 | 19 |
More details for October
- Daylight
- 11 h 17 min05:51 – 17:08
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 63 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %25 %
- Few rainy daysweight 30 %24 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Niigata in October: quick answers
Is Niigata hot in October?
No. In October, Niigata is mild: daytime highs average 19 °C and nights drop to about 13 °C.
Can you swim in Niigata in October?
Yes. In October the sea averages 22.0 °C – refreshing for a swim.
Does it rain much in Niigata in October?
It rains often – on about 15 days, adding up to 147 mm.
Niigata month by month
The whole year in NiigataAll destinations: JapanWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences