Weather in Nagano for 3 days
Weather in Nagano now: +26°, light showers. Below — a 3-day planner by time of day: morning, afternoon, evening and night with precipitation and wind.
Weather forecast in Nagano for 3 days 📅
Temperature chart for 3 days 📈
🕒 Weather in Nagano by time of day — 3 days
🏅 Best day of the three
When it will rain in Nagano in the next 3 days 🌧️
Thursday (August 20) — rain; Friday (August 21) — rain; Saturday (August 22) — rain.
📒 Weather diary in Nagano
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 Nagano ❓
Will it rain in Nagano in the next 3 days?
Rain expected: Thursday (August 20), Friday (August 21), Saturday (August 22). Take an umbrella those days.
How will the temperature change in Nagano over 3 days?
By day from +27° to +30°, nights around +20°. It gets cooler toward the end.
Good for outdoor plans in Nagano over 3 days?
On rainy days take an umbrella; dry days are comfortable for walks.
Sunrise and sunset in Nagano?
Sunrise 05:07, sunset 18:35, day length 13h 28m.
Will it be hot in Nagano?
Up to +30° 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 Nagano?
Yes, the UV index is 9 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
Do I need rubber boots in Nagano?
In rain and puddles, rubber boots or waterproof shoes will come in handy.
How long is it safe to stay in the sun in Nagano?
At UV 9, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
Which of the next three days is best for a walk or a trip?
The best day is Friday, August 21: by day +27°, light wind up to 3 m/s. See the time-of-day cards above for the full comparison.
Weather in Nagano — in detail
Weather forecast in Nagano for 3 days: from +20° to +30° day and night. Warmest day — Thursday, August 20 (up to +30°). Coolest — Saturday, August 22 (+20°). No significant precipitation. Trend: it cools toward the end. See also the forecast for the week and for 2 weeks.
To quickly check the weather in Nagano 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.