Onomichi weather
At 5:00 AM local time it was clear and 13°C (55°F). Little to no rain in the next 24 hours. Best months for weather: Apr–May, Aug, Oct–Nov. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Onomichi, Hiroshima, Japan.
Current conditions
- Clouds
- 2%
- 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 Apr–May, Aug, Oct–NovOff season Dec–Feb
About Onomichi weather
Is it raining in Onomichi right now?
No. It’s clear and 13° right now. Little to no rain in the next 24 hours.
What’s the weather like in Onomichi this week?
Over the next 7 days, expect highs of 17–22° and lows of 6–15°. Rain is likely on 2 of 7 days (Monday, Thursday). The driest day looks like Tuesday.
Has it been raining in Onomichi lately?
In the past 7 days, Onomichi had 3 rainy days and 105.2 mm of rain in total.
What should I pack for Onomichi?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Onomichi weather by month
When is the best time to visit Onomichi?
Based on weather alone, the best time to visit Onomichi 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 Onomichi?
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 Onomichi?
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 Onomichi?
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