Temperature in East Java in September

Daytime highs, nighttime lows and the warmest cities in East Java, Indonesia this September.

East Java, Indonesia, a region in Indonesia, experiences maximum daytime temperatures in September ranging from 28°C (82°F) in Banyuwangi to 34°C (93°F) in Sidoarjo. Nighttime temperatures generally drop to 24°C (75°F) in Sidoarjo and 22°C (72°F) in Banyuwangi.

What is the temperature of the different cities in East Java, Indonesia in September?

Find the average daytime temperatures in September for the most popular destinations in East Java on the map below. Click on a destination dot for more detailed information.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit East Java, check out our East Java's climate page.

See also: East Java weather by month.

Best Places to Visit in East Java in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across East Java.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

East Java temperatures in September: frequently asked questions

How hot does it get in East Java, Indonesia in September?

Expect daytime temperatures around 34°C (93°F) in Surabaya. That makes September a very high month for East Java, Indonesia.

How cold does it get at night in East Java, Indonesia in September?

Average overnight lows in East Java, Indonesia during September sit near 25°C (77°F) in Surabaya.

What is the warmest city in September in East Java, Indonesia?

Based on our systematic data collection, Sidoarjo has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 34°C (93°F), while at night it goes down to an approximate temperature of 24°C (75°F).

What is the coldest city in September in East Java, Indonesia?

According to our data, Banyuwangi holds the title for the coldest city in East Java, Indonesia in September. It experiences maximum temperatures of approximately 28°C (82°F) and drops to lows of about 22°C (72°F) during the night.

How much sun does East Java, Indonesia get in September?

Surabaya enjoys approximately 229 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

Interested in more climate information?

We have much more information about the climate in East Java.

Weather and climate has detailed information for every country in the world. Are you going to Indonesia? Get detailed historical weather averages for many cities in Indonesia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

10 Hidden gems in Asia you need to visit

Explore 10 hidden gems in Asia offering authentic experiences, from pristine beaches and remote islands to cultural treks and peaceful mountain villages.
The ultimate guide to Ubud – everything you need to know to escape the crowds

There is a way to experience Ubud in a fantastic less crowded way and this article will be your guide how to do that. Find the best places to stay, where to eat and much more.
Top 5 hidden gem islands in Indonesia

Discover Indonesia's secret islands: pristine beaches, rich history, and vibrant culture await beyond Bali and Java. Dive into untouched paradise.
Six Organic Farms & Farmstays in Indonesia

We've compiled a list of organic farms in Indonesia that have a positive impact on their communities - they could use your help during this pandemic.
Must visit in Indonesia →