September weather forecast
Fernando De Noronha Airport, Brazil

September, the first month of the spring in Fernando De Noronha Airport, is also a moderately hot month, with an average temperature fluctuating between 23°C (73.4°F) and 29°C (84.2°F).

Temperature

September welcomes an average high-temperature of a still warm 29°C (84.2°F), not much different from the preceding month. Fernando De Noronha Airport observes an average nighttime low-temperature of 23°C (73.4°F) during the month of September.

Rainfall

In Fernando De Noronha Airport, in September, it is raining for 16 days, with typically 30mm (1.18") of accumulated precipitation. In Fernando De Noronha Airport, during the entire year, the rain falls for 219 days and collects up to 1472mm (57.95") of precipitation.

Sea temperature

The month with the coldest seawater is September, with an average sea temperature of 26.5°C (79.7°F).
Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.

Daylight

In September, the average length of the day is 12h and 5min.
On the first day of the month, sunrise is at 05:08 and sunset at 17:10. On the last day of September, in Fernando De Noronha Airport, sunrise is at 04:55 and sunset at 17:03 -03.

Sunshine

In Fernando De Noronha Airport, the average sunshine in September is 16h.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index in Fernando De Noronha Airport. A UV Index of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 12 in September, converts into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Even if it's cloudy, generously apply and frequently reapply a sunscreen with no less than a 30 sun protection factor after each swim or outdoor exercise. Watch out! Sand and water enhance the UV exposure you receive.