Matsuyama September weather
Matsuyama, Japan · September
Flexibility helps, especially for sea and cycling links
September can still feel hot in the daytime, while evenings start to hint at autumn. The feel often swings within the month.
Typhoon influence can bring strong rain and wind, changing comfort and travel difficulty—especially for bridges, ferries, and cycling plans.
September averages at a glance
Average low
around 21–23°C
Average high
around 28–30°C
Average rainfall
around 180–260 mm
Rainy days
about 8–11 days
What to wear in September in Matsuyama
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Short sleeves by day with a thin layer in the evening is common.
- • A folding umbrella and water-safe pouch help on heavy-rain days.
Travel tips for visiting Matsuyama in September
- • If typhoon forecasts appear, reduce outdoor dependence and keep indoor anchors ready.
- • Leave slack in the plan; humidity can rebound after rain.
September weather in Matsuyama — FAQ
Q. Is September summer or autumn?
A. It’s a mix. Early September can feel like summer; later days often feel more autumn-like in the evenings.
Q. Will typhoons ruin plans?
A. Not every time, but strong wind/rain can disrupt sea and cycling links. Flexibility helps.
Explore Matsuyama
These pages are connected so you can compare conditions and decide for yourself.