East Nusa Tenggara Weather in September

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

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Labuan Bajo Kupang Ruteng Sumba

Planning a getaway to East Nusa Tenggara, Indonesia this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in East Nusa Tenggara in September

East Nusa Tenggara, Indonesia is a region in Indonesia. September in East Nusa Tenggara generally has temperatures that range from warm to very warm, with precipitation levels ranging from low to moderate.

Temperatures

The average maximum daytime temperatures vary from warm in Maumere at 29°C (84°F) to very warm in Komodo National Park at 33°C (91°F). Nighttime temperatures generally drop to 25°C (77°F) in Komodo National Park and 25°C (77°F) in Maumere. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

To learn more about the conditions in specific areas of East Nusa Tenggara, Indonesia, check out the map below.

Precipitation

In September, precipitation varies across different areas. From low rainfall in Kupang with an average of 9.1 mm (0.4 in) to moderate rainfall in Ruteng with 46 mm (1.8 in).

Explore East Nusa Tenggara by month

Pick a month to see the average temperature, rainfall and sunshine in East Nusa Tenggara - and find the best time to visit. (based on Labuan Bajo)

January29°C (84°F) February29°C (84°F) March29°C (84°F) April30°C (86°F) May30°C (86°F) June29°C (84°F) This monthJuly29°C (84°F) August29°C (84°F) September29°C (84°F) October30°C (86°F) November30°C (86°F) December30°C (86°F)
Best Time to Visit East Nusa Tenggara →

Best Places to Visit in East Nusa Tenggara in September

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

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 Nusa Tenggara

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

Temperature range in East Nusa Tenggara (September)

Precipitation variation in East Nusa Tenggara (September)

Labuan Bajo

In September Labuan Bajo generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 24°C (75°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
30°C (86°F)
Min temperature
23°C (73°F)
24°C (75°F)
25°C (77°F)
Monthly rainfall
13 mm (0.5 in)
33 mm (1.3 in)
89 mm (3.5 in)
Monthly rainy days
2 days
a single day
4 days
Weather conditions
excellent
excellent
very good
Climate in Labuan Bajo →

Kupang

In September Kupang generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 23°C (73°F) and low monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
33°C (91°F)
34°C (93°F)
Min temperature
22°C (72°F)
23°C (73°F)
24°C (75°F)
Monthly sun hours
304 hours
306 hours
290 hours
Monthly rainfall
3.7 mm (0.1 in)
9.1 mm (0.4 in)
29 mm (1.1 in)
Monthly rainy days
a single day
a single day
2 days
Weather conditions
excellent
excellent
very good
Climate in Kupang →

Ruteng

In September Ruteng generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 20°C (68°F) and moderate monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
19°C (66°F)
20°C (68°F)
21°C (70°F)
Monthly rainfall
24 mm (0.9 in)
46 mm (1.8 in)
115 mm (4.5 in)
Monthly rainy days
4 days
4 days
5 days
Weather conditions
excellent
very good
good
Climate in Ruteng →

Sumba

In September Sumba generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 22°C (72°F) and low monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
31°C (88°F)
32°C (90°F)
Min temperature
21°C (70°F)
22°C (72°F)
24°C (75°F)
Monthly rainfall
9.3 mm (0.4 in)
16 mm (0.6 in)
38 mm (1.5 in)
Monthly rainy days
a single day
a single day
3 days
Weather conditions
excellent
excellent
very good
Climate in Sumba →

Komodo National Park

In September Komodo National Park generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 25°C (77°F) and low monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
33°C (91°F)
34°C (93°F)
Min temperature
24°C (75°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
303 hours
297 hours
267 hours
Monthly rainfall
10 mm (0.4 in)
18 mm (0.7 in)
48 mm (1.9 in)
Monthly rainy days
a single day
2 days
4 days
Weather conditions
excellent
excellent
good
Climate in Komodo National Park →

Is your destination not in the list? Have a look at all destinations in East Nusa Tenggara, 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 Nusa Tenggara in September.

City Weather Day temp Night temp Rainfall
Labuan Bajo 29°C (84°F) 24°C (75°F) 33 mm (1.3 in)
Kupang 33°C (91°F) 23°C (73°F) 9.1 mm (0.4 in)
Ruteng 30°C (86°F) 20°C (68°F) 46 mm (1.8 in)
Sumba 31°C (88°F) 22°C (72°F) 16 mm (0.6 in)
Komodo National Park 33°C (91°F) 25°C (77°F) 18 mm (0.7 in)
Maumere 29°C (84°F) 25°C (77°F) 12 mm (0.5 in)

East Nusa Tenggara weather in September: frequently asked questions

What is the weather like in East Nusa Tenggara, Indonesia in September?

Expect excellent weather across East Nusa Tenggara, Indonesia in September. The popular destination of Labuan Bajo averages 29°C (84°F) by day and 24°C (75°F) at night during this month.

What is the average temperature in East Nusa Tenggara, Indonesia in September?

Labuan Bajo averages a daytime maximum of 29°C (84°F) in September, with overnight lows close to 24°C (75°F).

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

September is on the drier side in East Nusa Tenggara, Indonesia. Labuan Bajo averages only about 33 mm (1.3 in), with most days staying dry.

Is September a Good Time to Visit East Nusa Tenggara, Indonesia?

We believe that September is one of the best times to visit East Nusa Tenggara, Indonesia with overall excellent weather in Labuan Bajo.

On average, the best time to visit East Nusa Tenggara, Indonesia is in June, July, August and September with generally excellent weather in Labuan Bajo. The weather in January, February, March, April and December, on the other hand, tends to be less favorable.

Interested in more climate information?

We have much more information about the climate in East Nusa Tenggara.

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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