Matsuyama Weather in September
September in Matsuyama brings high temperatures, with highs of 28°C (82°F) and nights dropping to 21°C (70°F). Rainfall is on the higher side this month, averaging around 195 mm (7.7 in), so keep a rain jacket handy.
Rainfall in Matsuyama in September
Analyzing past climate data, one can expect approximately 17 days of rain, averaging 195 mm (7.7 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Matsuyama in September
September in Matsuyama brings high temperatures, with highs of 28°C (82°F) and nights around 21°C (70°F). During September, you'll experience the summer season. Overall, the month follows a fairly predictable daily temperature pattern. With lows of 21°C (70°F), the nights are warm and generally comfortable.
Sunshine in Matsuyama in September
The month experiences a moderate amount of sunlight, with 166 hours of sunshine. This provides a nice balance between sunshine and clouds.If you prefer enjoying temperate temperatures and rain-free days, May, October and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Matsuyama's climate page.
Matsuyama Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
28°C (82°F)
Chance of Rain
55%
Precipitation
195 mm (7.7 in)
Rainy days
17 days
Sunshine
166 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Matsuyama typically drop from around 30°C (86°F) at the start of September to approximately 26°C (79°F) by the end. Nights are warm, with lows typically ranging from 19°C (66°F) to 23°C (73°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Matsuyama in September
Browse day-by-day weather records for Matsuyama spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Matsuyama historical weather extremes in September
Based on weather observations in Matsuyama between 1976 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 2, 1984, with a maximum of 36°C (97°F).
- The coldest September day was on September 22, 1993, with a maximum of 19°C (66°F).
- The coldest night in September in Matsuyama was on September 28, 1987, with a minimum of 10°C (50°F).
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 →
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What to Wear in Matsuyama 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Matsuyama in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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 Matsuyama's climate page.
See the full Matsuyama climate overview or explore weather in Japan.
