Tosu Weather in September

In Tosu, September brings high daytime temperatures around 30°C (86°F), with nights cooling to 20°C (68°F). This month falls within the rainy season, so expect frequent rainfall.

Rainfall in Tosu in September

Tosu is in the rainy season in September, with rain on around 17 days and an average of 194 mm (7.6 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.

Temperature in Tosu in September

In September, Tosu sees high temperatures, with highs of 30°C (86°F). Nights drop to around 20°C (68°F). This kind of day-to-night contrast is typical for this time of year. At 20°C (68°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Tosu in September

The city usually sees around 163 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Tosu. Our weather planner can help you explore destinations with more pleasant weather conditions.

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

Tosu Temperature in September

Min Temperature 20°C (68°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 57%  

Precipitation 194 mm (7.6 in)  

Rainy days 17 days  

Humidity 73% *  

Sunshine 163 hours *  

Percentage Sunshine *  

* Data from: Fukuoka, Japan (26 KM, 16 Miles).

What to Wear in Tosu 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 Tosu 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 Tosu's climate page.

More climate data for Tosu

Temperature Rainfall Sunshine Humidity

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