Kōshū weather
At 10:00 AM local time it was clear and 14°C (58°F). Little to no rain in the next 24 hours. Best months for weather: May, Aug. Kōshū sits 634 m (2,080 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 Kōshū, Yamanashi, Japan.
Current conditions
- Clouds
- 6%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May, AugOff season Dec–Mar
About Kōshū weather
Is it raining in Kōshū right now?
No. It’s clear and 14° right now. Little to no rain in the next 24 hours.
What’s the weather like in Kōshū this week?
Over the next 7 days, expect highs of 15–22° and lows of 4–11°. Rain is likely on 4 of 7 days (Monday, Tuesday, Wednesday, Thursday). The driest day looks like Sunday.
Has it been raining in Kōshū lately?
In the past 7 days, Kōshū had 3 rainy days and 55.7 mm of rain in total.
What should I pack for Kōshū?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Kōshū weather by month
When is the best time to visit Kōshū?
Based on weather alone, the best time to visit Kōshū is May, Aug, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 4°C (38°F) in January to 28°C (82°F) in August.
What is the rainiest month in Kōshū?
July is the wettest month, with about 209 mm (8.2 in) of rain on average. January is the driest, with about 61 mm (2.4 in).
What is the hottest month in Kōshū?
August is the warmest, with average highs of 28°C (82°F) and lows of 19°C (66°F). January is the coolest, with highs of 4°C (38°F) and lows of -5°C (22°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