Normal weather for Kōzu-shima in September
It's warm in September in Kōzu-shima with an average temperature of 25°C. Temperatures this month range from a low of 23°C to a high of 27°C. At night, you can expect temperatures between 15°C and 21°C.
In September, there is an average of 179 mm of precipitation, spread over 18 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Kōzu-shima in September |
UK | ||
|---|---|---|---|
 Average Temperature |
25°C | 20°C | |
 High Temp |
27°C | 22°C | |
| Low Temp |
23°C | 17°C | |
 Total Precipitation |
179 mm | 44 mm | |
| Rainy Days |
18 days | 8 days | |
Start of September
The month of September starts in Kōzu-shima with hot temperatures, averaging around 27°C during the day and nights close to 21°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Since temperatures can differ between day and night, it’s a good idea to dress in layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
Mid-September
By mid-September, the average daytime temperature drops to around 25°C, with nights close to 19°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
Temperatures vary between day and night, so it’s smart to wear layers. A T-shirt, light trousers or skirt, and a light jacket are perfect for daytime. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.
End of September
By the end of September, the average daytime temperature in Kōzu-shima will be around 24°C, with nights close to 17°C. There’s a significant chance of many days with precipitation.
As it gets cooler in the evening, it’s best to wear layers. A T-shirt, light trousers or skirt, and a light jacket are perfect for daytime. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.
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 Kōzu-shima?
After some sun? Then September isn’t the best time to be in Kōzu-shima. The temperature is pleasant, but there’s too much chance of rain this month.
The typhoon season in Kōzu-shima runs from June to November.
Temperature records for Kōzu-shima in September
With 33°C, Kōzu-shima hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 17°C in 2020. The extreme night temperatures ranged from a low of 7°C to a high of 26°C.
Check out the climate of Kōzu-shima for all months and discover the best travel time
August
Daily Temperature in September in Kōzu-shima
This chart shows the average daily temperatures, both day and night, for each day in September in Kōzu-shima, 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 Kōzu-shima
The chart below shows the average daily precipitation in September for Kōzu-shima, 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 18 days of rain in Kōzu-shima.
Daily UV Index in September in Kōzu-shima
This chart shows the average daily UV index in September in Kōzu-shima, 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 Kōzu-shima Over the Years
This chart shows the average temperature in September in Kōzu-shima, measured in degrees Celsius, over the past years.
Total Precipitation in September in Kōzu-shima Over the Years
This chart shows the average precipitation in September in Kōzu-shima, 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 Kōzu-shima
Click on a specific day in September for detailed info on the typical weather on that day in Kōzu-shima. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Kōzu-shima
Have you been to Kōzu-shima in September?
Share your weather experience in September in Kōzu-shima.
Average Weather in Kōzu-shima by Month
Click on a month below to see detailed weather info for Kōzu-shima. 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 Kōzu-shima for all months at once
