Matsuyama weather in August 2025

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Matsuyama in August. Check more long-term weather averages for Matsuyama in August before you book your next holiday to Japan in 2025/2026.

  • 31°C maximum daytime temperature in August in Matsuyama31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in August in Matsuyama15
    15 days with some rainfall
  • 23°C minimum night-time temperature in August in Matsuyama23
    23°C min night temperature
  • 13 hours of daylight per day in August in Matsuyama13
    13 hours of daylight per day
  • High heat & humidity in August in MatsuyamaH
    High heat & humidity
  • 114 mm monthly rainfall in August in Matsuyama114
    114 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Matsuyama10
    10 (Very High) UV index
  • 26°C sea temperature in August in Matsuyama26
    26°C sea temperature

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The August weather guide for Japan (Matsuyama) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Matsuyama in August?

Daytime temperatures usually reach 31°C in Matsuyama in August with high heat and humidity, falling to 23°C at night.

How sunny is it in Matsuyama in August?

There are normally 7 hours of bright sunshine each day in Matsuyama in August - that's 51% of daylight hours.

How warm is the sea around Matsuyama in August?

The average sea temperature around Matsuyama in August is 26°C.

Does it rain in Matsuyama in August?

There are usually 15 days with some rain in Matsuyama in August and the average monthly rainfall is 114mm.

What is the chance of a typhoon in Matsuyama in August?

On average 1.9 days in August in Matsuyama are likely to be affected by the passage of one or more tropical storms.

Matsuyama August sunrise & sunset times

Browse the sunrise and sunset times for Matsuyama in August 2025. Select a month to view Matsuyama sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:21 19:10
Saturday, 16th August 2025 05:31 18:55
Sunday, 31st August 2025 05:42 18:36

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