Miri
Malaysia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Miri, Malaysia

September, the first month of the autumn, in Miri, is also a hot month, with average temperature varying between 31°C (87.8°F) and 23.4°C (74.1°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 31°C (87.8°F). In Miri, the average low-temperature is 23.4°C (74.1°F).

Rainfall

In September, in Miri, the rain falls for 14 days. Throughout September, 249.5mm (9.8") of precipitation is accumulated. Throughout the year, in Miri, there are 159 rainfall days, and 2713.6mm (106.8") of precipitation is accumulated.

Sea temperature

In Miri, the average seawater temperature in September is 29.7°C (85.5°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Miri, Malaysia, the average length of the day in September is 12.1h.

Sunshine

In September, the average sunshine is 6.2h.

UV index

Months with the highest UV index are January through November, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 12 translate into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Miri?

In September, in Miri, Malaysia, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 23.4°C (74.1°F).

How much does it rain in Miri in September?

In Miri, Malaysia, in September, during 14 rainfall days, 249.5mm (9.8") of precipitation is typically accumulated.

What is the sea water temperature in September in Miri?

In Miri, in September, the average water temperature is 29.7°C (85.5°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in September in Miri?

In September, the average length of the day in Miri is 12.1h.

How long on average sun shines in September in Miri?

The average sunshine in September in Miri, Malaysia, is 6.2h.

When is the highest UV index in Miri?

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

What is the UV index reading in September in Miri?

In September, the average daily maximum UV index is 12. A UV Index reading of 11, and higher, represents an ultimate hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Miri, Malaysia
  • Average high temperature in September: 31°C

The warmest month (with the highest average high temperature) is May (31.6°C).
The month with the lowest average high temperature is January (29.9°C).

  • Average low temperature in September: 23.4°C

The month with the highest average low temperature is May (23.9°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).

Average rainfall in September - Miri, Malaysia
  • Average rainfall in September: 249.5mm

The wettest month (with the highest rainfall) is December (349.2mm).
The driest month (with the lowest rainfall) is March (134.4mm).

Average rainfall days in September - Miri, Malaysia
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is December (18 days).
The month with the lowest number of rainy days is March (9 days).

Average sea temperature in September - Miri, Malaysia
  • Average sea temperature in September: 29.7°C

Best months for swimming (with the highest average sea temperature) are June and July (30.3°C).
The coldest month (with the lowest average sea temperature) is February (27.1°C).

Average daylight in September / Average sunshine in September - Miri, Malaysia
  • Average daylight in September: 12.1h

Months with the longest days are June and July (Average daylight: 12.4h).
Months with shortest days are January, November and December (Average daylight: 11.9h).

  • Average sunshine in September: 6.2h

The month with most sunshine is April (Average sunshine: 7.2h).
The month with least sunshine is January (Average sunshine: 5.5h).

Average UV index in September - Miri, 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).