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Foz do Iguacu weather in September

Weather in Foz do Iguacu: September

Average day temperature: 83.8°F
Average night temperature: 64.6°F
Number of sunny days: 18 days
Day length: 11.6 - 12.3 hours
Number of rainy days: 3 days
Precipitation totals: 1.8 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 99°F. At the same time the lowest night temperature was 47°F. Daily and nightly averages during September were 81.5°F and 62.8°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Foz do Iguacu in September is 1.8 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 4.9 mph It makes September most windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.3.

Best time for vacation in Foz do Iguacu

Sunniest months:
July 19 days
August 19 days
September 18 days
Warmest months:
February 89.9 °F
January 89.7 °F
December 89.5 °F
Coldest months:
June 70.4 °F
July 72.1 °F
May 74.1 °F
Rainiest months:
January 6 days
October 6 days
April 4 days
Windiest months:
September 4.9 mph
August 4.8 mph
October 4.5 mph

Foz do Iguacu on a weather map

Foz do Iguacu
+66°F
NW 2 mph
Feels like: +66°F
Precip.: 0%
Places in Brazil:
Name
°F
+72°F
+72°F
+77°F
+66°F
+77°F
+66°F
+77°F
+63°F
+68°F
+66°F
+64°F
+75°F
+66°F
24 Hours Forecast
Foz do Iguacu
Local time: 01:52
December 05, friday
0300
66°F
NW
2 mph
0600
70°F
W
5 mph
0900
86°F
SW
6 mph
1200
91°F
S
7 mph
1500
93°F
SW
5 mph
1800
81°F
SW
3 mph
2100
75°F
SW
2 mph
December 06, saturday
0000
73°F
W
3 mph
Units of measurement: °C / °F