Niigata weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: May – July, September – October
What is the weather like in Niigata in July?
In July, Niigata is hot: daytime highs average 27 °C, and even at night it stays warm at around 21 °C. The sea averages 23.7 °C – pleasant for swimming. Expect around 5 hours of sunshine a day. It rains often – on about 16 days, adding up to 201 mm. On about 5 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a good month for a holiday in Niigata.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 34 min04:33 – 19:07
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 13 km/haverage daily peakAll months
- Cloud cover
- 72 %on averageAll months
- Hot days
- 5 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 %98 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 30 %16 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Niigata in July: quick answers
Is Niigata hot in July?
Yes. In July, Niigata is hot: daytime highs average 27 °C and nights stay around 21 °C. On about 5 days the thermometer climbs to 30 °C or more.
Can you swim in Niigata in July?
Yes. In July the sea averages 23.7 °C – pleasant for swimming.
Does it rain much in Niigata in July?
It rains often – on about 16 days, adding up to 201 mm.
Niigata month by month
The whole year in NiigataAll destinations: JapanWhere to go in JulySea temperature in July
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