Kōzan weather
At 11:45 AM local time it was mostly clear and 18°C (64°F). Mostly light, on-and-off rain; heavier around 7 AM (4.1 mm total). Best months for weather: Apr–May, Aug, Oct–Nov. Kōzan sits 339 m (1,112 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 Kōzan, Hiroshima, Japan.
Current conditions
- Clouds
- 20%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 7 AM (4.1 mm total)
Daily Forecast
Best Time to Visit
Peak season Apr–May, Aug, Oct–NovOff season Dec–Feb
About Kōzan weather
Is it raining in Kōzan right now?
No. It’s mostly clear and 18° right now. Mostly light, on-and-off rain; heavier around 7 AM (4.1 mm total).
What’s the weather like in Kōzan this week?
Over the next 7 days, expect highs of 11–19° and lows of 6–12°. Rain is likely on 2 of 7 days (Monday, Thursday). The driest day looks like Tuesday.
Has it been raining in Kōzan lately?
In the past 7 days, Kōzan had 3 rainy days and 93.8 mm of rain in total.
What should I pack for Kōzan?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Kōzan weather by month
When is the best time to visit Kōzan?
Based on weather alone, the best time to visit Kōzan is Apr–May, Aug, Oct–Nov, according to NASA's 2001–2025 climate averages. Dec–Feb tends to be the least pleasant. Average highs run from 7°C (44°F) in January to 30°C (86°F) in August.
What is the rainiest month in Kōzan?
July is the wettest month, with about 240 mm (9.4 in) of rain on average. January is the driest, with about 60 mm (2.4 in).
What is the hottest month in Kōzan?
August is the warmest, with average highs of 30°C (86°F) and lows of 23°C (73°F). January is the coolest, with highs of 7°C (44°F) and lows of 0°C (32°F).
How warm is the sea in Kōzan?
The sea is warmest in August at about 30°C (86°F) and coolest in February at about 11°C (51°F). It is comfortable for swimming (22°C or more) in Jun–Oct.
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months