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Hourly Forecast
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06:01
Sunrise
18:00
Sunset
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Waxing Gibbous
15:06
Moonrise
01:09
Moonset
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View stargazing scoreWeather in Matsuyama today, September 21, 2026
Matsuyama looks cloudy on September 21, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. The morning sky stays heavily clouded, with cover near 77% around 06:00. Grey conditions set the early tone before any later change.
Temperatures climb from an overnight low near 21°C toward a daytime high of about 28°C. Expect humidity between 59% and 86%, most humid near 06:00. Expect gentle winds, highest near 15:00 at 5.2 km/h.
Expect persistent cloud later on, with amounts around 63% by 14:00. Sunshine remains the exception, not the rule. Visibility stays near 16.1 km. Daylight runs from 06:01 to 18:00, lasting 11 hours 58 minutes of sunlight today.
Overall, Matsuyama on September 21, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 28°C.
Frequently asked questions about weather in Matsuyama
How warm does it get in Matsuyama?
The warmest month in Matsuyama is August, with average high temperatures of 31°C. The average temperature during this period is around 27°C.
How cold does it get in Matsuyama?
The coldest month in Matsuyama is January, with average low temperatures of 3°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Matsuyama?
The wettest month in Matsuyama is June, with an average of 278mm of precipitation.
What is the driest time of year in Matsuyama?
The driest month in Matsuyama is December, with an average of 66mm of precipitation.
