Shiraoi Weather in September

Shiraoi in September sees pleasant daytime temperatures of 21°C (70°F) and nighttime lows of 15°C (59°F). Rainfall is fairly high this month at around 193 mm (7.6 in), so pack a rain jacket to stay dry.

Rainfall in Shiraoi in September

Historically, approximately 17 days this month are expected to have rain, averaging 193 mm (7.6 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Shiraoi in September

Daytime highs in Shiraoi in September reach 21°C (70°F), with nights around 15°C (59°F). September is a notable month of the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Shiraoi in September

The month experiences a moderate amount of sunlight, with 161 hours of sunshine. This provides a nice balance between sunshine and clouds.

If you prefer enjoying temperate temperatures and rain-free days, July typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Shiraoi Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 58%  

Precipitation 193 mm (7.6 in)  

Rainy days 17 days  

Humidity 71% *  

Sunshine 161 hours *  

Percentage Sunshine *  

* Data from: Sapporo, Japan (54 KM, 33 Miles).

What to Wear in Shiraoi in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Shiraoi in September

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

Swimming

6/10

Camping

6/10

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 Shiraoi's climate page.

More climate data for Shiraoi

Temperature Rainfall Sunshine Humidity

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