George Town
Malaysia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
George Town, Malaysia

A clear view of George Town from atop a beautiful gazebo on Penang Hill, during spring
A clear view of George Town from atop a beautiful gazebo on Penang Hill, during spring
September, the first month of the autumn, in George Town, is still a tropical month, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 30°C (86°F).

Temperature

September and October, with an average high-temperature of 30°C (86°F), are the coldest months.

Rainfall

In George Town, during 23 rainfall days, 350mm (13.8") of precipitation is typically accumulated. Throughout the year, in George Town, there are 196 rainfall days, and 2460mm (96.9") of precipitation is accumulated.

Sea temperature

In George Town, the average seawater temperature is 29.5°C (85.1°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In September, the average length of the day in George Town is 12.2h.

Sunshine

September has the least sunshine of the year in George Town, with an average of 5h of sunshine.

UV index

Months with the highest UV index are January through November, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 12 in September transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the coldest months in George Town?

September and October, with an average high-temperature of 30°C (86°F), are the coldest months in George Town, Malaysia.

What is the temperature in September in George Town?

In George Town, in September, the average high-temperature is 30°C (86°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in George Town in September?

In September, the rain falls for 23 days. Throughout September, 350mm (13.8") of precipitation is accumulated.

How warm is the water in September in George Town?

In George Town, Malaysia, in September, the average water temperature is 29.5°C (85.1°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in George Town?

In George Town, Malaysia, the average length of the day in September is 12.2h.

What is the month with the least sunshine in George Town?

With an average of 5h of sunshine, September has the least sunshine of the year in George Town, Malaysia.

How many hours of sunshine does George Town have in September?

In September, the average sunshine in George Town is 5h.

What are the months with the highest UV index in George Town?

Months with the highest UV index in George Town are January through November, with an average maximum UV index of 12.

What is the UV index intensity in September in George Town?

In September, the average daily maximum UV index in George Town, Malaysia, is 12. A UV Index of 11, and more, symbolizes an extreme health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - George Town, Malaysia
  • Average high temperature in September: 30°C

Warmest months (with the highest average high temperature) are January, February, March and April (32°C).
Months with the lowest average high temperature are September and October (30°C).

  • Average low temperature in September: 23°C

Months with the highest average low temperature are January, February, March, April, May, June, July, August, October, November and December (24°C).
The coldest month (with the lowest average low temperature) is September (23°C).

Average rainfall in September - George Town, Malaysia
  • Average rainfall in September: 350mm

The wettest month (with the highest rainfall) is October (390mm).
The driest month (with the lowest rainfall) is January (70mm).

Average rainfall days in September - George Town, Malaysia
  • Average rainfall days in September: 23 days

The month with the highest number of rainy days is October (24 days).
Months with the lowest number of rainy days are January and February (9 days).

Average sea temperature in September - George Town, Malaysia
  • Average sea temperature in September: 29.5°C

The best month for swimming (with the highest average sea temperature) is May (30.5°C).
The coldest month (with the lowest average sea temperature) is January (28.7°C).

Average daylight in September / Average sunshine in September - George Town, Malaysia
  • Average daylight in September: 12.2h

Months with the longest days are May, June and July (Average daylight: 12.4h).
Months with shortest days are January and December (Average daylight: 11.8h).

  • Average sunshine in September: 5h

Months with most sunshine are January, February and March (Average sunshine: 8h).
The month with least sunshine is September (Average sunshine: 5h).

Average UV index in September - George Town, Malaysia
  • Average UV index in September: 12

Months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 12).
The month with the lowest UV index is December (UV index 11).