Shiojiri weather
At 12:45 PM local time it was mostly clear and 15°C (58°F). Mostly light, on-and-off rain; heavier around 11 AM (2.4 mm total). Best months for weather: May–Jun, Aug–Sep. Shiojiri sits 729 m (2,392 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Shiojiri, Nagano, Japan.
Current conditions
- Clouds
- 44%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 11 AM (2.4 mm total)
Daily Forecast
Best Time to Visit
Peak season May–Jun, Aug–SepOff season Dec–Mar
About Shiojiri weather
Is it raining in Shiojiri right now?
No. It’s mostly clear and 15° right now. Mostly light, on-and-off rain; heavier around 11 AM (2.4 mm total).
What’s the weather like in Shiojiri this week?
Over the next 7 days, expect highs of 13–20° and lows of 2–10°. Rain is likely on 2 of 7 days (Monday, Thursday). The driest day looks like Sunday.
Has it been raining in Shiojiri lately?
In the past 7 days, Shiojiri had 3 rainy days and 26.8 mm of rain in total.
What should I pack for Shiojiri?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Shiojiri weather by month
When is the best time to visit Shiojiri?
Based on weather alone, the best time to visit Shiojiri is May–Jun, Aug–Sep, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from -1°C (31°F) in January to 26°C (78°F) in August.
What is the rainiest month in Shiojiri?
July is the wettest month, with about 197 mm (7.8 in) of rain on average. February is the driest, with about 49 mm (1.9 in).
What is the hottest month in Shiojiri?
August is the warmest, with average highs of 26°C (78°F) and lows of 17°C (62°F). January is the coolest, with highs of -1°C (31°F) and lows of -10°C (15°F).
Does Shiojiri have a rainy season?
Yes. Jul–Oct is the rainy season (150 mm or more a month), while Dec–Feb is usually dry (under 60 mm).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months