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.