Temperatures 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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Hachijō-jima in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Hachijō-jima with hot temperatures, averaging around 30°C during the day and nights close to 25°C. Plenty of days with a chance of precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature drops to around 28°C, with nights close to 24°C. The chance of precipitation is high during this period.
End of September
By the end of September, the average daytime temperature in Hachijō-jima will be around 28°C, with nights close to 23°C. There’s a significant chance of many days with precipitation.
Precipitation in September
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.
Across the whole month, the average precipitation chance is 52% per day.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Hachijō-jima. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Hachijō-jima in September |
UK | ||
|---|---|---|---|
 Average Temperature |
28°C | 20°C | |
 High Temp |
30°C | 22°C | |
| Low Temp |
27°C | 17°C | |
 Total Precipitation |
333 mm | 44 mm | |
| Rainy Days |
16 days | 8 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?
After some sun? Then September isn’t the best time to be in Hachijō-jima. The temperature is pleasant, but there’s too much chance of rain this month.
The typhoon season in Hachijō-jima runs from June to November.
Temperature records for Hachijō-jima in September
With 32°C, Hachijō-jima hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 20°C in 2014. The extreme night temperatures ranged from a low of 17°C to a high 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 temperatures, both day and night, for each day in September in Hachijō-jima, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Hachijō-jima
The chart below shows the average daily precipitation in September for Hachijō-jima, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 16 days of rain 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 years.
Total Precipitation in September in Hachijō-jima Over the Years
This chart shows the average precipitation in September in Hachijō-jima, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Hachijō-jima
Click on a specific day in September for detailed info on the typical 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
