
Weather in Niigata, Japan for 2 weeks
Weather in Niigata for 2 weeks: from +23° to +33° by day and night. Day-by-day forecast, precipitation chance and a temperature chart below.
Weather forecast in Niigata for 2 weeks 📅
Temperature chart for 2 weeks 📈
Weather in Niigata for 10 days
2-week trend 📈
The average daytime temperature for the next 2 weeks is about +30°, which is close to the climate normal (August normal +30°).
⚠️ The further ahead, the lower the accuracy: 10–14 days out may be adjusted; beyond that — a climate-normal estimate.
📒 Weather diary in Niigata
Ready-made observation table for August: past days are already filled in with weather-station data — for school and beyond. Open the diary →
✉️ Weather forecast by email
Get the forecast for this city by email — every day at 17:00 Moscow time.

FAQ about weather in Niigata ❓
What's the 2-week trend in Niigata?
Average daytime around +30°, nights around +23°. It gets cooler toward the end.
Warmer or colder than the climate norm in Niigata?
Around the climate norm.
Is rain expected in Niigata in the next 2 weeks?
Rain expected: Wednesday (August 19), Thursday (August 20), Friday (August 21), Wednesday (August 26), Thursday (August 27). Take an umbrella those days.
Do I need an umbrella in Niigata for 2 weeks?
No, precipitation is unlikely — you can go out without an umbrella.
Will it be hot in Niigata?
Up to +32° by day — hot. Drink more water, avoid the sun from noon to 4 PM, wear light clothes and a hat.
Do I need sunscreen in Niigata?
Yes, the UV index is 7 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
How long is it safe to stay in the sun in Niigata?
At UV 7, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
Weather in Niigata — in detail
Weather forecast in Niigata for 2 weeks: from +23° to +33° day and night. Warmest day — Wednesday, August 26 (up to +33°). Coolest — Friday, August 21 (+23°). No significant precipitation. Trend: it cools toward the end. See also the forecast for the month and the weather archive.
To quickly check the weather in Niigata anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.