September weather forecastAntonina, Brazil
September
Weather in September
The first month of the spring, September, is a warm month in Antonina, Brazil, with temperature in the range of an average low of 15.7°C (60.3°F) and an average high of 23.3°C (73.9°F).Temperature
The transition from August to September sees an average high-temperature of a warm 23.3°C (73.9°F), indicating a minor variance from the prior month. Throughout September, the average low-temperature dips to a refreshing 15.7°C (60.3°F).Humidity
The average relative humidity in September is 84%.Rainfall
In Antonina, in September, during 15.2 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, in Antonina, Brazil, there are 204.4 rainfall days, and 1031mm (40.59") of precipitation is accumulated.Sea temperature
The month with the coldest seawater is September, with an average sea temperature of 19.1°C (66.4°F).Note: The majority of people find swimming in 19.1°C (66.4°F) unenjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing becomes more challenging to control.
Daylight
The average length of the day in September is 11h and 58min.On the first day of the month, sunrise is at 06:26 and sunset at 18:03. On the last day of September, in Antonina, sunrise is at 05:54 and sunset at 18:14 -03.
Sunshine
In September, the average sunshine in Antonina is 6.5h.UV index
The months with the lowest UV index are April through October, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Antonina, Brazil
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is January (29.4°C).
The month with the lowest average high temperature is July (21.3°C).
- Average low temperature in September: 15.7°C
The month with the highest average low temperature is January (21.3°C).
The coldest month (with the lowest average low temperature) is July (14.1°C).
Average pressure in September
Antonina, Brazil
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1011.9mbar).
Average wind speed in September
Antonina, Brazil
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is November (7km/h).
The calmest months (with the lowest average wind speed) are June, July and August (5.9km/h).
Average humidity in September
Antonina, Brazil
- Average humidity in September: 84%
The months with the highest relative humidity are May, June and July (85%).
The months with the lowest relative humidity are January, February and December (82%).
Average rainfall in September
Antonina, Brazil
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is February (141mm).
The driest months (with the least rainfall) are April and August (56mm).
Average rainfall days in September
Antonina, Brazil
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is January (23.3 days).
The month with the least rainy days is August (11.6 days).
Average sea temperature in September
Antonina, Brazil
- Average sea temperature in September: 19.1°C
The best month for swimming (with the highest average sea temperature) is February (26.8°C).
The coldest month (with the lowest average sea temperature) is September (19.1°C).
Average daylight in September /
Average sunshine in September
Antonina, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 36min).
- Average sunshine in September: 6h and 30min
The months with the most sunshine are January, April and August (Average sunshine: 6h and 54min).
The months with the least sunshine are October and November (Average sunshine: 6h and 6min).
Average sunshine days in September
Antonina, Brazil
- Average sunshine days in September: 12 days
The month with the most sunshine days is July (17.3 days).
The month with the least sunshine days is January (5 days).
Average UV index in September
Antonina, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 5).
Average cloud cover in September
Antonina, Brazil
- Average cloud cover in September: 55
The months with the most cloud cover are October and November (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 49).
Average visibility in September
Antonina, Brazil
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, August, September and December (8km).
The months with the lowest visibility are July, October and November (7km).





