The month in detail
What to expect in August
In the height of summer, Matsuyama sees high temperatures (30°C). Heat is a factor for outdoor activities. Expect rain on 28% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. September (8.1/10) is significantly better if possible.
August ranks 7 out of 12 months in Matsuyama. Compared to July: 10 pts fewer rainy days, +0.9h of sun per day.
This month's conditions
What it's like in August
UV index
7 · high
sunscreen and hat advised
Feels like
very humid
23°
Sea
29°C
warm, ideal
Daylight
13.3h of daylight
Air quality
good
AQI 31
Compare
Is August the right month?
The best month in Matsuyama is September (8.1/10), 2.5 pts higher than August.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Matsuyama
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Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Matsuyama
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.
Country · Japan
🗣️LanguageJapanese
💶CurrencyYen japonais (¥)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘModerate · 3/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthAugust · 30°C
❄️Coolest monthJanuary · 10°C
🌧️Rainiest month ⓘJuly · 38%
🏖️ Beach holiday
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in August
If August doesn't convince you for this destination, compare with others.
Location
Where is Matsuyama ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
JapanTemperate oceanic climate with a 8.1 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
33.84°N · 132.77°E
Questions
Frequently asked questions
What is the best time to visit Matsuyama?
September is the best month with 27.0°C highs, 22.0°C lows, 5.5h of sunshine and 31.0% rainy days. The months of September & May offer comparable conditions.
How many hours of sunshine does Matsuyama get in September?
Matsuyama averages 5.5 sunshine hours per day in September. It is the sunniest month with a climate score of 7.5/10.
What is the rainiest month in Matsuyama?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Matsuyama in September?
In September, overnight lows reach 22.0°C, while afternoon highs average 27.0°C.
Is Matsuyama good in winter?
In winter (December-February), Matsuyama scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains September with a score of 7.5/10.
When should you avoid Matsuyama?
January is the most difficult month to visit Matsuyama, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Matsuyama in August?
In August, the sea averages 29°C in Matsuyama: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Matsuyama in August?
The average UV index reaches 7 in August in Matsuyama (high), with about 13.3h of daylight. Sunscreen and hat advised.