Yokohama weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Yokohama in August. Check more long-term weather averages for Yokohama in August before you book your next holiday to Japan in 2025/2026.

  • 30°C maximum daytime temperature in August in Yokohama30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in August in Yokohama15
    15 days with some rainfall
  • 23°C minimum night-time temperature in August in Yokohama23
    23°C min night temperature
  • 13 hours of daylight per day in August in Yokohama13
    13 hours of daylight per day
  • High heat & humidity in August in YokohamaH
    High heat & humidity
  • 138 mm monthly rainfall in August in Yokohama138
    138 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Yokohama10
    10 (Very High) UV index
  • 26°C sea temperature in August in Yokohama26
    26°C sea temperature

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The August weather guide for Japan (Yokohama) 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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More about Japan

How hot is it in Yokohama in August?

Daytime temperatures usually reach 30°C in Yokohama in August with high heat and humidity, falling to 23°C at night.

How sunny is it in Yokohama in August?

There are normally 6 hours of bright sunshine each day in Yokohama in August - that's 45% of daylight hours.

How warm is the sea around Yokohama in August?

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

Does it rain in Yokohama in August?

There are usually 15 days with some rain in Yokohama in August and the average monthly rainfall is 138mm.

Yokohama August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:50 18:45
Saturday, 16th August 2025 05:01 18:30
Sunday, 31st August 2025 05:13 18:10

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