Weather in September
Temperature
Foz do Iguaçu records an average high-temperature of a still moderately hot 26.9°C (80.4°F) in September, closely mirroring the climate of the previous month. Despite the high peak temperatures, Foz do Iguaçu witnesses an average nighttime cooling to a mild 13.5°C (56.3°F) in September.Humidity
The average relative humidity in September in Foz do Iguaçu is 79%.Rainfall
In Foz do Iguaçu, during September, the rain falls for 8 days and regularly aggregates up to 147mm (5.79") of precipitation. Throughout the year, there are 95 rainfall days, and 1869mm (73.58") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 58min.On the first day of the month, sunrise is at 06:49 and sunset at 18:26. On the last day of September, sunrise is at 06:18 and sunset at 18:37 -03.
Sunshine
September has the least sunshine of the year in Foz do Iguaçu, with an average of 4.9h of sunshine.UV index
In Foz do Iguaçu, the average daily maximum UV index in September is 9. A UV Index estimate of 8 to 10 represents a very high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 9 in September translates into these instructions:
Be vigilant. Without due care, eyes and skin can be harmed in no time. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What are the temperatures in Foz do Iguaçu in September?
What is the average humidity in September in Foz do Iguaçu?
How much does it rain in Foz do Iguaçu in September?
What is the average length of the day in September in Foz do Iguaçu?
When are sunrise and sunset in September in Foz do Iguaçu?
What is the month with the least sunshine in Foz do Iguaçu?
How many hours of sunshine does Foz do Iguaçu have in September?
What is the UV index reading in September in Foz do Iguaçu?
Average temperature in September
Foz do Iguaçu, Brazil
- Average high temperature in September: 26.9°C
The warmest month (with the highest average high temperature) is January (33°C).
The month with the lowest average high temperature is June (23.1°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is February (20°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average humidity in September
Foz do Iguaçu, Brazil
- Average humidity in September: 79%
The month with the highest relative humidity is May (86%).
The month with the lowest relative humidity is December (74%).
Average rainfall in September
Foz do Iguaçu, Brazil
- Average rainfall in September: 146.6mm
The wettest month (with the highest rainfall) is October (219.8mm).
The driest month (with the least rainfall) is July (84.4mm).
Average rainfall days in September
Foz do Iguaçu, Brazil
- Average rainfall days in September: 8 days
The months with the highest number of rainy days are January, February, October and December (9 days).
The months with the least rainy days are May and July (6 days).
Average daylight in September /
Average sunshine in September
Foz do Iguaçu, 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: 4h and 5min
The month with the most sunshine is November (Average sunshine: 7h and 42min).
The month with the least sunshine is September (Average sunshine: 4h and 54min).
Average UV index in September
Foz do Iguaçu, Brazil
- Average UV index in September: 9
The months with the highest UV index are January, February, November and December (UV index 12).
The month with the lowest UV index is June (UV index 4).
Foz do Iguaçu, Brazil
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