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Kuala Lumpur in September: Weather, Average temperature and Climate

Discover the weather for Kuala Lumpur in September and if it’s a good time to travel (based on historical data).
Check flight prices to Kuala Lumpur on Avionero:
September

Weather in Kuala Lumpur in September 2025

OK Weather
Hot
🌧️
Rainy
🌊
Very warm water
September could be a good time to visit Kuala Lumpur, as the weather is generally fine. The average high temperature is around +88°F, and there are typically 0 sunny days in September. However, expect about 10 rainy days, and total monthly rainfall of approximately 114 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+88°F
Avg. max. temperature
+70°F
Min.
+97°F
Max.
114 mm
Total precipitation
79%
Avg. humidity
1 m/s
Avg. wind
0 ☀️
Sunny Days
2 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: Kuala Lumpur has OK weather in September.

Average temperature in Kuala Lumpur in September

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

The expected average maximum temperature in September is +91°F with a maximum of +97°F and a minimum of +75°F.

The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +90°F to +95°F.

Is Kuala Lumpur warm or cold in September?

Kuala Lumpur is typically hot in September.

Maximum temperatures go down compared to the previous month from +90°F to +88°F. The minimum temperature also goes up from +75°F to +75°F.

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

September is one of the coolest months in Kuala Lumpur, here is the comparison with other months:

Water temperature in Kuala Lumpur in September

Water in Kuala Lumpur in September is Very warm. It varies from +83°F to +86°F, with an average of +85°F. This is almost similar to the air temperature, which averages +88°F.

In September, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Kuala Lumpur are reached in April, when the average sea temperature rises to +86°F. The coldest water temperatures are in January, with an average of +83°F.

Can you swim in Kuala Lumpur in September?

You can definitely swim in Kuala Lumpur in September, the water is very warm (+85°F in average), and might even be unpleasant for ones who like it more fresh.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don't forget sunscreen and a hat, it's going to be hot!

Climate in Kuala Lumpur in September

Kuala Lumpur weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+90°F+88°F+88°F
Min. temperature
+70°F+70°F+70°F
Max. temperature
+97°F+97°F+95°F
Rainfall
91 mm114 mm160 mm
Wind
1 m/s1 m/s1 m/s
Avg. water temperature
+85°F+85°F+85°F
Humidity
78%79%81%
Air pressure
1009 HPa1009 HPa1009 HPa
Sunny days
000
Cloudy days
421
Rainy days
111010
Snowy days
000

September weather is still as ok as in August. It’s getting colder in September. From +90°F in the day, the average maximum temperature lowers to +88°F. Prepare for more rain. Average rainfall goes from 91 mm to 114 mm. Humidity rises from 78% to 79%. 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 0 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

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

The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Kuala Lumpur is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Kuala Lumpur based on historical data.
Last Year
Historical Data
Total precipitation in September is about 263 mm, with a 90% chance of rain on a typical day. The maximum amount of rainfall per day is around 26 mm, which is moderate rain. September is a pretty wet month with over 27 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Kuala Lumpur wettest month is November, where a typical day has a 27% chance of precipitation and 257 mm of rainfall per day. June, on the other hand, is the driest month with a mere 30% chance of precipitation and 74 mm of rainfall per day.

How was the weather last September in Kuala Lumpur?

This is the weather in Kuala Lumpur in September 2023:
1 September
☀️
+90°F
2 September
☀️
+91°F
3 September
☀️
+90°F
4 September
☀️
+88°F
5 September
🌧️
+89°F
6 September
🌧️
+86°F
7 September
☀️
+94°F
8 September
☀️
+89°F
9 September
☀️
+91°F
10 September
☀️
+89°F
11 September
☀️
+94°F
12 September
☀️
+93°F
13 September
☀️
+96°F
14 September
☀️
+97°F
15 September
☀️
+94°F
16 September
☀️
+92°F
17 September
☀️
+91°F
18 September
🌧️
+95°F
19 September
🌧️
+95°F
20 September
☀️
+90°F
21 September
☀️
+85°F
22 September
☀️
+87°F
23 September
☀️
+90°F
24 September
☀️
+86°F
25 September
🌧️
+87°F
26 September
☀️
+89°F
27 September
☀️
+95°F
28 September
☀️
+95°F
29 September
☀️
+96°F
30 September
☀️
+94°F
In September 2023 Kuala Lumpur had 25 sunny days, 0 cloudy days, and 5 rainy days. The average maximum temperature was +91°F, with an absolute maximum of +97°F and a minimum of +84°F. The average humidity was 85%, with a maximum of 100% and a minimum of 54%. The average wind speed was 2 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

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

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

The average temperature was the lowest in 1984 (+86°F) and the highest in 2019 (+92°F). The driest year was 1981 with only 881 mm of rainfall, and the wettest year was 2023 with 5963 mm.

FAQ

Frequently asked questions about the weather in Kuala Lumpur in September:

Is September a good time to visit Kuala Lumpur?

It’s always a good time to visit Kuala Lumpur, 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 Kuala Lumpur in September?

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

Can you swim in Kuala Lumpur in September?

Yes, you can swim in Kuala Lumpur in September, the water is very warm, with temperature averaging at +85°F, but it's important to manage hydration and sun exposure.

Is Kuala Lumpur rainy in September?

Kuala Lumpur 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 Kuala Lumpur in September?

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

Other cities in Malaysia

Check out the weather for other cities in Malaysia.

Monthly weather in Kuala Lumpur

Source of the data

For this page, we’ve looked at the typical weather in Kuala Lumpur, 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.