Your trips
Organize your trips easily with tabs
New York
Jakarta
Any date
+ Search
background

Jakarta in September: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Jakarta in September will be like? Take a look at our weather guide for Jakarta, based on historical data.
Check flight prices to Jakarta on Avionero:
September

Weather in Jakarta in September 2025

OK Weather
Hot
🌧️
Rainy
If you plan to visit Jakarta in September, the weather is typically alright, with an average high temperature of +90°F during the day and approximately 2 sunny days. Expect some rainy, though, as there are typically 18 rainy days in the month and around 61 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • September is usually the driest month of the year in Jakarta

Average weather

☀️
+90°F
Avg. max. temperature
+70°F
Min.
+97°F
Max.
61 mm
Total precipitation
76%
Avg. humidity
1 m/s
Avg. wind
2 ☀️
Sunny Days
9 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Jakarta has OK weather in September.

Average temperature in Jakarta in September

Here are the expected maximum, average and minimum temperatures in Jakarta for September based on the historical data.
Last Year
Historical Data

Going from a maximum of +97°F during the day to a minimum of +72°F during the night, the temperature in September averages around +95°F.

The average maximum temperature goes up 7% by the end of the month, compared with the beginning of the month, from +93°F to +95°F.

Is Jakarta warm or cold in September?

Jakarta is typically hot in September.

Maximum temperatures go up compared to the previous month from +90°F to +90°F. The minimum temperature also goes up from +75°F to +77°F.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

September is one of the warmest months in Jakarta, here is the comparison with other months:

Climate in Jakarta in September

Jakarta weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+90°F+90°F+90°F
Min. temperature
+68°F+70°F+72°F
Max. temperature
+97°F+97°F+100°F
Rainfall
45 mm61 mm128 mm
Wind
1 m/s1 m/s1 m/s
Humidity
77%76%78%
Air pressure
1010 HPa1010 HPa1009 HPa
Sunny days
221
Cloudy days
1195
Rainy days
161823
Snowy days
000

September typically has worse weather conditions compared to August. The temperature levels stay the same in the area of +90°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 45 mm to 61 mm. It feels drier, as humidity decreases from 77% to 76%. The average wind speed doesn’t change much during September, staying around 1 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

Wind speed in Jakarta in September based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Jakarta is gradually increasing during September, going from 2 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Jakarta based on historical data.
Last Year
Historical Data
Typically, there is a 7% chance of rain on an average day in September, with total rainfall of approximately 6 mm. The maximum amount of rainfall per day is around 4 mm, which is considered light rain. Jakarta is amazing in September with as little as 2 rainy days on average, so plan adventures in the great outdoors.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Jakarta wettest month is January, where a typical day has a 90% chance of precipitation and 272 mm of rainfall per day. August, on the other hand, is the driest month with a mere 52% chance of precipitation and 45 mm of rainfall per day.

How was the weather last September in Jakarta?

This is the weather in Jakarta in September 2023:
1 September
🌫️
+93°F
2 September
☁️
+93°F
3 September
🌫️
+95°F
4 September
☀️
+94°F
5 September
☀️
+92°F
6 September
☀️
+93°F
7 September
☀️
+94°F
8 September
☁️
+95°F
9 September
☁️
+94°F
10 September
☀️
+94°F
11 September
☀️
+95°F
12 September
☀️
+96°F
13 September
☁️
+96°F
14 September
☁️
+94°F
15 September
☁️
+96°F
16 September
☁️
+95°F
17 September
☁️
+96°F
18 September
☁️
+94°F
19 September
🌫️
+94°F
20 September
☀️
+95°F
21 September
🌫️
+94°F
22 September
☁️
+95°F
23 September
☀️
+93°F
24 September
☁️
+94°F
25 September
☁️
+97°F
26 September
☀️
+97°F
27 September
☀️
+97°F
28 September
☀️
+96°F
29 September
☀️
+98°F
30 September
☁️
+95°F
In September 2023 Jakarta had 13 sunny days, 13 cloudy days, and 0 rainy days. The average maximum temperature was +95°F, with an absolute maximum of +97°F and a minimum of +93°F. The average humidity was 69%, with a maximum of 100% and a minimum of 42%. The average wind speed was 3 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Jakarta climate has changed over the last 43 years.

The climate in Jakarta in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1984 (+85°F) and the highest in 2023 (+92°F). The driest year was 1997 with only 1181 mm of rainfall, and the wettest year was 1984 with 2582 mm.

FAQ

Frequently asked questions about the weather in Jakarta in September:

Is September a good time to visit Jakarta?

It’s always a good time to visit Jakarta, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Jakarta in September?

Absolutely, September is hot in Jakarta. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Jakarta rainy in September?

Jakarta is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Jakarta in September?

Usually, it’s not very sunny in Jakarta in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Indonesia

Check out the weather for other cities in Indonesia.

Monthly weather in Jakarta

Source of the data

For this page, we’ve looked at the typical weather in Jakarta, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.