Climate ▸Forecast ▸September ▸October ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Karatsu Weather in September

Karatsu in September sees high daytime temperatures of 28°C (82°F) and nighttime lows of 22°C (72°F). As part of the rainy season, showers are frequent and often heavy. Budget around 196 mm (7.7 in) of rainfall for the month.

Rainfall in Karatsu in September

As part of the rainy season, Karatsu sees around 17 days of rain in September, with an average of 196 mm (7.7 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.

Temperature in Karatsu in September

In September, Karatsu sees high temperatures, with highs of 28°C (82°F). Nights drop to around 22°C (72°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Karatsu in September

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

Should you favor a climate that's both dry and comfortably warm, May, October and November typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Karatsu's climate page.

Karatsu Temperature in September

Min TemperatureMin Temperature 22°C (72°F)  
Max TemperatureMax Temperature 28°C (82°F)  
Chance of RainChance of Rain 56%  
PrecipitationPrecipitation 196 mm (7.7 in)  
Rainy daysRainy days 17 days  
HumidityHumidity 73% *  
SunshineSunshine 163 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Fukuoka, Japan (44 KM, 27 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 Karatsu 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Karatsu 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 Karatsu's climate page.

More climate data for Karatsu