September weather forecast
West Island, Cocos (Keeling) Islands

Palm trees along the white sandy beaches on the Indian Ocean, in the Coast of West Island, Cocos (Keeling) Islands
Palm trees along the white sandy beaches on the Indian Ocean, in the Coast of West Island, Cocos (Keeling) Islands

Weather in September

September, the first month of the spring in West Island, is also a moderately hot month, with an average temperature fluctuating between 23°C (73.4°F) and 28°C (82.4°F).

Temperature

The coldest months are June through September, with an average high-temperature of 28°C (82.4°F).

Rainfall

In West Island, it is raining for 14 days, with typically 105mm (4.13") of accumulated precipitation. Throughout the year, there are 186 rainfall days, and 2082mm (81.97") of precipitation is accumulated.

Sea temperature

July through December, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
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 September, the average length of the day in West Island is 12h and 2min.
On the first day of the month, sunrise is at 06:06 and sunset at 17:59. On the last day of September, sunrise is at 05:46 and sunset at 17:58 +0630.

Sunshine

The average sunshine in September is 14h.

UV index

The months with the highest UV index in West Island are January through April, September through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation 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. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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.
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FAQ

What is the coldest month in West Island?

June through September, with an average high-temperature of 28°C (82.4°F), are the coldest months in West Island.

How much does it rain in West Island in September?

In West Island, Cocos (Keeling) Islands, in September, during 14 rainfall days, 105mm (4.13") of precipitation is typically accumulated.

What months are the sea coldest in West Island?

July through December, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater in West Island, Cocos (Keeling) Islands.

How warm is the water in September in West Island?

In West Island, Cocos (Keeling) Islands, in September, the average water temperature is 27°C (80.6°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.

How many hours of daylight does West Island have in September?

In West Island, Cocos (Keeling) Islands, the average day length in September is 12h and 2min.

When are sunrise and sunset in September in West Island?

In September, on the first day of the month, sunrise is at 06:06 and sunset at 17:59. On the last day of the month, sunrise is at 05:46 and sunset at 17:58 +0630.

How many hours of sunshine does West Island have in September?

In West Island, Cocos (Keeling) Islands, the average sunshine duration in September is 14h.

What is the month with the highest UV index in West Island?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in September in West Island?

The average daily maximum UV index in September is 12. A UV Index of 11, and more, symbolizes an extreme health threat from exposure to the Sun's UV radiation.

Average temperature in September
West Island, Cocos (Keeling) Islands

Average temperature in September - West Island, Cocos (Keeling) Islands
  • Average high temperature in September: 28°C

The warmest months (with the highest average high temperature) are February, March and April (30°C).
The months with the lowest average high temperature are June, July, August and September (28°C).

  • Average low temperature in September: 23°C

The months with the highest average low temperature are March and April (25°C).
The coldest months (with the lowest average low temperature) are July, August and September (23°C).

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Average rainfall in September
West Island, Cocos (Keeling) Islands

Average rainfall in September - West Island, Cocos (Keeling) Islands
  • Average rainfall in September: 105mm

The wettest month (with the highest rainfall) is April (255mm).
The driest month (with the least rainfall) is October (99mm).

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Average rainfall days in September
West Island, Cocos (Keeling) Islands

Average rainfall days in September - West Island, Cocos (Keeling) Islands
  • Average rainfall days in September: 14 days

The months with the highest number of rainy days are May and July (20 days).
The month with the least rainy days is December (11 days).

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Average sea temperature in September
West Island, Cocos (Keeling) Islands

Average sea temperature in September - West Island, Cocos (Keeling) Islands
  • Average sea temperature in September: 27°C

The best months for swimming (with the highest average sea temperature) are January, February, March, April, May and June (28°C).
The coldest months (with the lowest average sea temperature) are July, August, September, October, November and December (27°C).

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Average daylight in September /
Average sunshine in September
West Island, Cocos (Keeling) Islands

Average daylight in September / Average sunshine in September - West Island, Cocos (Keeling) Islands
  • Average daylight in September: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 50min).
The month with the shortest days is June (Average daylight: 11h and 25min).

  • Average sunshine in September: 14h

The months with the most sunshine are May and July (Average sunshine: 20h).
The month with the least sunshine is December (Average sunshine: 11h).

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Average UV index in September
West Island, Cocos (Keeling) Islands

Average UV index in September - West Island, Cocos (Keeling) Islands
  • Average UV index in September: 12

The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 8).

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