October weather forecast
Florianópolis, Brazil

October brings distinctive changes to the weather pattern in Florianópolis with a warm spring climate. The city records rainfall of 110mm (4.33") over a span of roughly 11 days. Sea temperatures start to climb, offering an opportunity for beach goers to enjoy the waters once again. Daylight hours further extend, while the UV index begins to rise, indicating preparations for the sun protection measures for the upcoming months.

Temperature

The arrival of October in Florianópolis is marked by an average high-temperature of a still pleasant 22.9°C (73.2°F), bearing a close resemblance to September. The average temperature in Florianópolis during October nights dips to a comfortable 16.9°C (62.4°F).

Humidity

The average relative humidity in October in Florianópolis, Brazil, is 81%.

Rainfall

In Florianópolis, in October, it is raining for 11 days, with typically 110mm (4.33") of accumulated precipitation. Throughout the year, in Florianópolis, there are 120 rainfall days, and 1518mm (59.76") of precipitation is accumulated.

Sea temperature

In October, the average sea temperature in Florianópolis is 20.9°C (69.6°F).
Note: For most, swimming in 20.9°C (69.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Florianópolis, the average length of the day in October is 12h and 46min.
On the first day of October in Florianópolis, sunrise is at 05:52 and sunset at 18:14. On the last day of the month, sunrise is at 05:22 and sunset at 18:32 -03.

Sunshine

In October, the average sunshine in Florianópolis, Brazil, is 5.1h.

UV index

In October, the average daily maximum UV index in Florianópolis is 10. A UV Index reading of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for the average person.
Note: In October, the maximum UV index of 10 transforms into these recommendations:
Ensure safety measures are in place, as skin and eyes are vulnerable to quick damage. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.