JapanAverage weather for Hachijō-jima in September
It's warm in September in Hachijō-jima with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 30°C. At night, you can expect temperatures between 22°C and 25°C.
Start of September
The month of September starts in Hachijō-jima with hot temps, averaging around 30°C during the day and nights around 25°C. There are plenty of days with a good chance of precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps drop to around 28°C, with nights around 24°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Hachijō-jima is around 28°C, while nighttime temps are about 23°C. There’s a significant chance of many days with precipitation.
In September, there is an average of 333 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Hachijō-jima in September |
New York | ||
|---|---|---|---|
 Average temperature |
28°C | 27°C | |
 Max. temperature |
30°C | 31°C | |
| Min. temperature |
27°C | -5°C | |
 Total precipitation |
333 mm | 57 mm | |
| Rainy days |
16 days | 9 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Hachijō-jima?
Looking for sun? September isn’t a good month to be in Hachijō-jima. The temperature is nice, but there’s too much chance of rain.
The typhoon season in Hachijō-jima runs from June to November.
Temperature records
With 32°C in 2023, Hachijō-jima reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 20°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 17°C to a highest value of 27°C.
Check out the climate of Hachijō-jima for all months and discover the best travel time
Daily Temperature in September in Hachijō-jima
This chart shows the average daily high and low temperatures in September for Hachijō-jima, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Hachijō-jima
The chart below shows the average daily precipitation in September for Hachijō-jima, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 16 days of precipitation in Hachijō-jima.
Daily UV index in September in Hachijō-jima
This chart shows the average daily UV index in September in Hachijō-jima, 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.
Temperature in September in Hachijō-jima over the years
This chart shows the average temperature in September in Hachijō-jima, measured in degrees Celsius, over the past few years.
Total precipitation in September in Hachijō-jima over the years
This chart shows the average precipitation in September in Hachijō-jima, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Hachijō-jima
Click on any day in September to get detailed info about the usual weather on that day in Hachijō-jima. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Hachijō-jima
Have you been to Hachijō-jima in September?
Share your weather experience in September in Hachijō-jima.
Average weather in Hachijō-jima by month
Click on a month below to see detailed weather info for Hachijō-jima. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Hachijō-jima for all months at once
