Yamagata weather in August 2025

Expect 27°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Yamagata in August. Check more long-term weather averages for Yamagata in August before you book your next holiday to Japan in 2025/2026.

  • 27°C maximum daytime temperature in August in Yamagata27
    27°C max day temperature
  • 6 hours of sunshine per day
  • 19 days with some rainfall in August in Yamagata19
    19 days with some rainfall
  • 19°C minimum night-time temperature in August in Yamagata19
    19°C min night temperature
  • 14 hours of daylight per day in August in Yamagata14
    14 hours of daylight per day
  • High heat & humidity in August in YamagataH
    High heat & humidity
  • 178 mm monthly rainfall in August in Yamagata178
    178 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Yamagata9
    9 (Very High) UV index

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The August weather guide for Japan (Yamagata) 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 Yamagata in August?

Daytime temperatures usually reach 27°C in Yamagata in August with high heat and humidity, falling to 19°C at night.

How sunny is it in Yamagata in August?

There are normally 6 hours of bright sunshine each day in Yamagata in August - that's 41% of daylight hours.

Does it rain in Yamagata in August?

There are usually 19 days with some rain in Yamagata in August and the average monthly rainfall is 178mm.

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

On average 1.7 days in August in Yamagata are likely to be affected by the passage of one or more tropical storms.

Yamagata August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:41 18:49
Saturday, 16th August 2025 04:54 18:31
Sunday, 31st August 2025 05:07 18:10

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