Sanjō weather
Best months for weather: Apr–Jun, Aug–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Sanjō, Niigata, Japan.
Best Time to Visit
Peak season Apr–Jun, Aug–OctOff season Dec–Feb
Sanjō weather by month
When is the best time to visit Sanjō?
Based on weather alone, the best time to visit Sanjō is Apr–Jun, Aug–Oct, according to NASA's 2001–2025 climate averages. Dec–Feb tends to be the least pleasant. Average highs run from 4°C (39°F) in January to 29°C (84°F) in August.
What is the rainiest month in Sanjō?
December is the wettest month, with about 248 mm (9.8 in) of rain on average. May is the driest, with about 92 mm (3.6 in).
What is the hottest month in Sanjō?
August is the warmest, with average highs of 29°C (84°F) and lows of 22°C (72°F). January is the coolest, with highs of 4°C (39°F) and lows of 1°C (33°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