The weather in September in Yokohama

It's warm in September in Yokohama with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 30°C. At night, you can expect temperatures between 20°C and 24°C.

Looking for sun? September isn’t a good month to be in Yokohama. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Yokohama, Japan. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 34°C in 2019, Yokohama reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 17°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 28°C.

Rainfall amount

In September, there is an average of 261 mm of precipitation, spread over 22 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in September for Yokohama

Click on any day in September to get detailed info about the usual weather on that day in Yokohama. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Yokohama New York
Average temperature 28°C 27°C
Max. temperature 30°C 31°C
Min. temperature 20°C -5°C
Total precipitation 261 mm 57 mm
Rainy days 22 days 9 days

Start of September

The month of September starts in Yokohama with hot temps, averaging around 29°C during the day and nights around 24°C.

Mid September

By mid-September, daytime temps drop to around 28°C, with nights around 23°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Yokohama is around 27°C, while nighttime temps are about 21°C. There’s a significant chance of many days with precipitation.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

The typhoon season in Yokohama runs from June to November.

Check out the climate of Yokohama for all months and discover the best travel time

Curious about the weather in other parts of Japan? Check out the climate and weather for spots like Tokyo, Kyōto, Osaka, or explore other destinations in Japan.

Temperature charts

These charts show the average temperatures in September in Yokohama, Japan. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Yokohama

Temperature in September in Yokohama over the years

Precipitation charts

These charts show the average amount of precipitation in September in Yokohama, Japan. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Yokohama

Total precipitation in September in Yokohama over the years

Daily UV index in September in Yokohama

This chart shows the average daily UV index in September in Yokohama, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Yokohama

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Average weather in Yokohama by month

Click on a month below to see detailed weather info for Yokohama. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.