IndonesiaAverage weather for Java in September
It's hot in September in Java with an average temperature of 34°C. Temperatures this month range from a low of 34°C to a high of 35°C. At night, you can expect temperatures between 22°C and 23°C.
Start of September
The month of September starts in Java with hot temps, averaging around 35°C during the day and nights around 23°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid September
By mid-September, daytime temps drop to around 34°C, with nights around 23°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of September
By the end of September, the average daytime temperature in Java is around 35°C, while nighttime temps are about 23°C. There’s a significant chance of many days with precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
In September, there is an average of 121 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
Java in September |
New York | ||
|---|---|---|---|
 Average temperature |
34°C | 27°C | |
 Max. temperature |
35°C | 31°C | |
| Min. temperature |
34°C | -5°C | |
 Total precipitation |
121 mm | 57 mm | |
| Rainy days |
9 days | 9 days | |
August
UV index
The UV index is a maximum of 10 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 Java?
Looking for sun? September isn’t a good month to be in Java. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 37°C in 2023, Java reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 28°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 18°C to a highest value of 26°C.
Check out the climate of Java for all months and discover the best travel time
Daily Temperature in September in Java
This chart shows the average daily high and low temperatures in September for Java, 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 Java
The chart below shows the average daily precipitation in September for Java, 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 9 days of precipitation in Java.
Daily UV index in September in Java
This chart shows the average daily UV index in September in Java, 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 Java over the years
This chart shows the average temperature in September in Java, measured in degrees Celsius, over the past few years.
Total precipitation in September in Java over the years
This chart shows the average precipitation in September in Java, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Java
Click on any day in September to get detailed info about the usual weather on that day in Java. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Java
Have you been to Java in September?
Share your weather experience in September in Java.
Average weather in Java by month
Click on a month below to see detailed weather info for Java. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
