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Weather in September
Temperature
Florianópolis sees the arrival of September with an average high-temperature of a still agreeable 21.2°C (70.2°F), indicating a subtle variation from August. During September, Florianópolis experiences an average low-temperature of 15.1°C (59.2°F) at night.Humidity
In September, the average relative humidity in Florianópolis, Brazil, is 83%.Rainfall
In September, in Florianópolis, the rain falls for 11 days. Throughout September, 134mm (5.28") of precipitation is accumulated. In Florianópolis, during the entire year, the rain falls for 120 days and collects up to 1518mm (59.76") of precipitation.Sea temperature
In Florianópolis, in September, the average water temperature is 18.8°C (65.8°F).Note: Most people do not find pleasure in swimming when the water temperature is 18.8°C (65.8°F). Breathing becomes increasingly difficult to manage as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September in Florianópolis is 11h and 56min.On the first day of September, sunrise is at 06:26 and sunset at 18:01. On the last day of the month, sunrise is at 05:53 and sunset at 18:14 -03.
Sunshine
The month with the least sunshine is September, with an average of 4.3h of sunshine.UV index
In September, the average daily maximum UV index in Florianópolis is 8. A UV Index value of 8 to 10 symbolizes a very high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 8 during September translates into the following recommendations:
Prioritize your safety. Without precautions, skin and eyes might get hurt quickly. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What are the temperatures in Florianópolis in September?
What is the average humidity in September in Florianópolis?
How many days does it rain in September in Florianópolis?
What is the sea temperature in September in Florianópolis?
What is the average length of the day in September in Florianópolis?
When are sunrise and sunset in September in Florianópolis?
What is the month with the least sunshine in Florianópolis?
How many hours of sunshine does Florianópolis have in September?
What is the UV index intensity in September in Florianópolis?
Average temperature in September
Florianópolis, Brazil
- Average high temperature in September: 21.2°C
The warmest month (with the highest average high temperature) is February (28.4°C).
The month with the lowest average high temperature is July (20.4°C).
- Average low temperature in September: 15.1°C
The month with the highest average low temperature is February (21.8°C).
The coldest month (with the lowest average low temperature) is July (13.3°C).
Average humidity in September
Florianópolis, Brazil
- Average humidity in September: 83%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are November and December (80%).
Average rainfall in September
Florianópolis, Brazil
- Average rainfall in September: 134.2mm
The wettest month (with the highest rainfall) is February (196.9mm).
The driest month (with the least rainfall) is June (89.5mm).
Average rainfall days in September
Florianópolis, Brazil
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is February (13 days).
The month with the least rainy days is May (7 days).
Average sea temperature in September
Florianópolis, Brazil
- Average sea temperature in September: 18.8°C
The best months for swimming (with the highest average sea temperature) are January and February (25.8°C).
The coldest month (with the lowest average sea temperature) is July (18.6°C).
Average daylight in September /
Average sunshine in September
Florianópolis, Brazil
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 4h and 2min
The month with the most sunshine is February (Average sunshine: 6h and 36min).
The month with the least sunshine is September (Average sunshine: 4h and 18min).
Average UV index in September
Florianópolis, Brazil
- Average UV index in September: 8
The months with the highest UV index are January, February, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 4).
Florianópolis, Brazil
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