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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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Check the conditions for any month of the year.

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 TemperatureMin Temperature 20°C (68°F)  
Max TemperatureMax Temperature 30°C (86°F)  
Chance of RainChance of Rain 57%  
PrecipitationPrecipitation 194 mm (7.6 in)  
Rainy daysRainy days 17 days  
HumidityHumidity 73% *  
SunshineSunshine 163 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Fukuoka, Japan (26 KM, 16 Miles).

Best Places in Japan in September

Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in September →

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

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