Jōetsu weather
Best months for weather: Apr–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Jōetsu, Niigata, Japan.
Best Time to Visit
Peak season Apr–OctOff season Dec–Mar
Jōetsu weather by month
When is the best time to visit Jōetsu?
Based on weather alone, the best time to visit Jōetsu is Apr–Oct, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 2°C (36°F) in January to 27°C (81°F) in August.
What is the rainiest month in Jōetsu?
December is the wettest month, with about 215 mm (8.5 in) of rain on average. May is the driest, with about 92 mm (3.6 in).
What is the hottest month in Jōetsu?
August is the warmest, with average highs of 27°C (81°F) and lows of 21°C (69°F). January is the coolest, with highs of 2°C (36°F) and lows of -3°C (27°F).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months