Onomichi Weather in September

September in Onomichi brings high temperatures, with daytime highs of 29°C (84°F) and nights around 21°C (70°F). Quite a bit of rainfall is expected, around 162 mm (6.4 in), so pack an umbrella.

Rainfall in Onomichi in September

Looking at the last 30 years, the data shows about 16 days with rain, averaging 162 mm (6.4 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Onomichi in September

Onomichi in September gets highs of 29°C (84°F) during the day and drops to 21°C (70°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights are mild at around 21°C (70°F), which is comfortable for most people.

Sunshine in Onomichi in September

The area enjoys a balanced 169 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Onomichi in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit Japan, check out our Onomichi's climate page.

Onomichi Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 53%  

Precipitation 162 mm (6.4 in)  

Rainy days 16 days  

Humidity 68% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 169 hours *  

Percentage Sunshine 43% *  

* Data from: Hiroshima, Japan (24 KM, 15 Miles).

What to Wear in Onomichi in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Onomichi in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Japan, check out our Onomichi's climate page.

More climate data for Onomichi

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Onomichi climate overview or explore weather in Japan.