East Kalimantan Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in East Kalimantan, Indonesia in September.

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Balikpapan Tarakan Samarinda

Considering a trip to East Kalimantan, Indonesia this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in East Kalimantan in September

East Kalimantan, Indonesia is a region in Indonesia. September in East Kalimantan generally has very warm temperatures, with precipitation levels ranging from high to heavy.

Temperatures

The average maximum temperatures are very warm and range from 30°C (86°F) in Balikpapan to 33°C (91°F) in Samarinda. Nighttime temperatures generally drop to 24°C (75°F) in Samarinda and 26°C (79°F) in Balikpapan. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For a closer look at conditions across East Kalimantan, Indonesia, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Balikpapan with an average of 134 mm (5.3 in) to heavy rainfall in Tarakan with 241 mm (9.5 in).

Explore East Kalimantan by month

Pick a month to see the average temperature, rainfall and sunshine in East Kalimantan — and find the best time to visit. (based on Balikpapan)

January30°C (86°F) February30°C (86°F) March30°C (86°F) April31°C (88°F) May31°C (88°F) June30°C (86°F) This monthJuly30°C (86°F) August30°C (86°F) September30°C (86°F) October30°C (86°F) November30°C (86°F) December30°C (86°F)
Best Time to Visit East Kalimantan →

Best Places to Visit in East Kalimantan in September

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

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in East Kalimantan

What is the weather like in September for some of the most popular destinations in East Kalimantan, Indonesia?

Temperature range in East Kalimantan (September)

Precipitation variation in East Kalimantan (September)

Balikpapan

In September Balikpapan generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly rainfall
125 mm (4.9 in)
134 mm (5.3 in)
173 mm (6.8 in)
Monthly rainy days
11 days
9 days
9 days
Weather conditions
tolerable
tolerable
tolerable
Climate in Balikpapan →

Tarakan

In September Tarakan generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
171 hours
165 hours
155 hours
Monthly rainfall
220 mm (8.7 in)
241 mm (9.5 in)
270 mm (11 in)
Monthly rainy days
16 days
16 days
18 days
Weather conditions
poor
poor
poor
Climate in Tarakan →

Samarinda

In September Samarinda generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
33°C (91°F)
33°C (91°F)
Min temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
168 mm (6.6 in)
185 mm (7.3 in)
237 mm (9.3 in)
Monthly rainy days
12 days
10 days
11 days
Weather conditions
tolerable
unpleasant
poor
Climate in Samarinda →

Is your destination not in the list? Have a look at all destinations in East Kalimantan, in Indonesia.

In our records: Indonesia September extremes

Notable September records observed across cities in Indonesia in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the coldest September daytime high in Indonesia was 18°C (64°F) in Bandung on September 23, 2003.

Popular cities in September

Day & night temperatures, rainfall and average weather in East Kalimantan in September.

City Weather Day temp Night temp Rainfall
Balikpapan 30°C (86°F) 26°C (79°F) 134 mm (5.3 in)
Tarakan 30°C (86°F) 26°C (79°F) 241 mm (9.5 in)
Samarinda 33°C (91°F) 24°C (75°F) 185 mm (7.3 in)

East Kalimantan weather in September: frequently asked questions

What is the weather like in East Kalimantan, Indonesia in September?

September in East Kalimantan, Indonesia brings unpleasant weather. In Balikpapan, daytime temperatures are typically around 30°C (86°F) and nighttime lows hover near 26°C (79°F).

What is the average temperature in East Kalimantan, Indonesia in September?

In Balikpapan, the average daytime high in September is 30°C (86°F), while nighttime temperatures drop to around 26°C (79°F).

Does East Kalimantan, Indonesia get a lot of rain in September?

Balikpapan typically receives notable rainfall in September, about 134 mm (5.3 in) on average across East Kalimantan, Indonesia.

Is September a Good Time to Visit East Kalimantan, Indonesia?

We consider September to be one of the best times to travel to East Kalimantan, Indonesia. Typically, the climate in Balikpapan is tolerable.

Generally speaking, the best visiting conditions can be found in July, August, September and October offering mostly unpleasant weather in Balikpapan.

Interested in more climate information?

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

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.

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