September weather forecast
Seychelles International Airport, Seychelles

As the month of September unfurls, Seychelles International Airport experiences a clear shift with the rainfall total rising to 134mm (5.28"). Nonetheless, sunny days dominate the weather scene, with shadows dancing under the generous sunlight. Slight variations in temperature levels add complexity to the September weather framework. Despite the increased rainfall, the sea remains inviting, thanks to the maintained warmth. The glorious sunsets of September offer unforgettable moments, proving the month’s endearing character in the Seychelles’s weather symphony.

Temperature

September's advent presents an average high-temperature of a still warm 28°C (82.4°F), indicating a slight variation from the conditions of the previous month. Seychelles International Airport, in the month of September, notes an average low temperature of 24°C (75.2°F), indicating a small decrease from the daytime highs.

Rainfall

In Seychelles International Airport, in September, it is raining for 14 days, with typically 134mm (5.28") of accumulated precipitation. In Seychelles International Airport, during the entire year, the rain falls for 187 days and collects up to 2258mm (88.9") of precipitation.

Sea temperature

In Seychelles International Airport, the average seawater temperature in September is 27°C (80.6°F).
Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:18. On the last day of September, sunrise is at 06:03 and sunset at 18:12 +04.

Sunshine

The months with the most sunshine are April through June, August and September, with an average of 8h of sunshine.

UV index

The months with the highest UV index are January through April, August through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 12 during September leads to these instructions:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Take heed! Reflections of sand and water make the Sun's UV rays stronger.