September weather forecast
West Island, Cocos (Keeling) Islands

As September sets in, the island records lower rainfall of 105mm (4.13"), suggesting drier conditions compared to August. The rise in the UV index to 12 signifies the bright, sunlit sky dominating the 12 hours of daylight. Meanwhile, the sea maintains 27°C (80.6°F), maintaining the ambient warmth. In spite of the lowering rainfall, the consistent temperature and high humidity make the surrounds feel wetter than they are. In essence, September replicates the tropical vibe the Cocos (Keeling) Islands is well known for, albeit with a slight twist.

Temperature

West Island's coldest period falls in June through September, when the average high-temperatures ascend to 28°C (82.4°F).

Rainfall

In West Island, Cocos (Keeling) Islands, in September, during 14 rainfall days, 105mm (4.13") of precipitation is typically accumulated. 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 in West Island.
Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

The average length of the day in September 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

In West Island, the average sunshine in September is 14h.

UV index

The months with the highest UV index are January through April, September through December, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a daily UV index of 12 turns into the following recommendations:
Utilize all vital precautions. Guarding against sun harm is non-negotiable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Apply and frequently reapply a minimum SPF 30 sunscreen even on cloudy days, especially after swimming or an outdoor workout. Notice! The Sun's UV exposure elevates with sand and water reflections.