Redang Island
Malaysia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Redang Island, Malaysia

A view of the rocky white sandy shores of the Marine Park in Redang Island, Malaysia, and small ships ashore
A view of the rocky white sandy shores of the Marine Park in Redang Island, Malaysia, and small ships ashore
The first month of the autumn, September, is still a hot month in Redang Island, Malaysia, with average temperature ranging between max 31°C (87.8°F) and min 23°C (73.4°F).

Temperature

In September, the average high-temperature remains the same as in August - a still tropical 31°C (87.8°F). The average low-temperature, in Redang Island, is 23°C (73.4°F).

Rainfall

In September, in Redang Island, Malaysia, the rain falls for 18 days. Throughout September, 235mm (9.3") of precipitation is accumulated. Throughout the year, in Redang Island, there are 181 rainfall days, and 3099mm (122") of precipitation is accumulated.

Sea temperature

In Redang Island, the average seawater temperature in September is 29°C (84.2°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 Redang Island, Malaysia, the average length of the day is 12.2h.

Sunshine

In September, the average sunshine in Redang Island is 6h.

UV index

January through May, July through November, with an average maximum UV index of 12, are months with the highest UV index in Redang Island, Malaysia. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 12 translate into the following recommendations:
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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Redang Island?

In Redang Island, Malaysia, in September, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in Redang Island in September?

In Redang Island, in September, it is raining for 18 days, with typically 235mm (9.3") of accumulated precipitation.

What is the water temperature in September in Redang Island?

In September, the average sea temperature in Redang Island is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Redang Island?

In Redang Island, Malaysia, the average length of the day in September is 12.2h.

How long on average sun shines in September in Redang Island?

In September, the average sunshine in Redang Island, Malaysia, is 6h.

What are the months with the highest UV index in Redang Island?

January through May, July through November, with an average maximum UV index of 12, are months with the highest UV index in Redang Island.

How high is the UV index in September in Redang Island?

In September, the average daily maximum UV index in Redang Island is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in September - Redang Island, Malaysia
  • Average high temperature in September: 31°C

Warmest months (with the highest average high temperature) are April, May and June (32°C).
Months with the lowest average high temperature are January and December (28°C).

  • Average low temperature in September: 23°C

The month with the highest average low temperature is May (24°C).
The coldest month (with the lowest average low temperature) is January (22°C).

Average rainfall in September - Redang Island, Malaysia
  • Average rainfall in September: 235mm

The wettest month (with the highest rainfall) is December (661mm).
The driest month (with the lowest rainfall) is April (93mm).

Average rainfall days in September - Redang Island, Malaysia
  • Average rainfall days in September: 18 days

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

Average sea temperature in September - Redang Island, Malaysia
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are May and June (30°C).
Coldest months (with the lowest average sea temperature) are January, February and December (27°C).

Average daylight in September / Average sunshine in September - Redang Island, Malaysia
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.5h).
Months with shortest days are January and December (Average daylight: 11.8h).

  • Average sunshine in September: 6h

Months with most sunshine are March and April (Average sunshine: 8h).
The month with least sunshine is December (Average sunshine: 4h).

Average UV index in September - Redang Island, Malaysia
  • Average UV index in September: 12

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