Puerto Iguazú monthly weather forecast

Monthly weather forecast for Puerto Iguazú. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

31 August 2026, Monday
+20°C / +25°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+21°C
4.2
100%
994
01:00
+21°C
6.7
99%
994
02:00
+21°C
13.1
99%
993
03:00
+20°C
9.3
99%
992
04:00
+20°C
12.1
99%
991
05:00
+20°C
11.5
99%
991
06:00
+20°C
16.2
98%
990
07:00
+20°C
7.9
98%
991
08:00
+20°C
12.2
98%
991
09:00
+21°C
10.8
96%
992
10:00
+22°C
12.9
93%
991
11:00
+24°C
13.1
82%
991
12:00
+23°C
6.5
93%
991
13:00
+24°C
13.7
91%
989
14:00
+25°C
13.1
92%
989
15:00
+24°C
14.9
95%
989
16:00
+23°C
12.3
96%
988
17:00
+23°C
9.7
97%
989
18:00
+22°C
6.3
98%
990
19:00
+21°C
10.5
97%
991
20:00
+21°C
11.6
97%
992
21:00
+20°C
9.8
98%
993
22:00
+20°C
9.8
98%
994
23:00
+20°C
9.2
98%
995
01 September 2026, Tuesday
+17°C / +24°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+20°C
9.4
99%
995
01:00
+19°C
7.8
99%
995
02:00
+19°C
9.7
99%
995
03:00
+19°C
11.9
99%
994
04:00
+19°C
10.7
99%
994
05:00
+19°C
10.3
98%
994
06:00
+19°C
11.3
98%
995
07:00
+18°C
9.9
97%
996
08:00
+19°C
9.1
94%
997
09:00
+19°C
10.2
91%
998
10:00
+20°C
11.4
86%
998
11:00
+22°C
12
73%
999
12:00
+23°C
13.2
65%
999
13:00
+24°C
13.2
57%
998
14:00
+24°C
14.4
57%
998
15:00
+24°C
15.6
55%
997
16:00
+24°C
16.2
56%
997
17:00
+23°C
15.4
59%
998
18:00
+22°C
11.4
66%
998
19:00
+20°C
9.3
75%
999
20:00
+19°C
10.3
78%
1000
21:00
+18°C
10.5
81%
1000
22:00
+17°C
10
85%
1001
23:00
+17°C
10
88%
1001
02 September 2026, Wednesday
+14°C / +26°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
7.4
94%
1001
01:00
+16°C
6
94%
1001
02:00
+15°C
4.5
95%
1001
03:00
+15°C
4
96%
1000
04:00
+15°C
4.4
97%
1000
05:00
+14°C
4.7
97%
999
06:00
+14°C
5
97%
1000
07:00
+14°C
5.2
97%
1000
08:00
+16°C
5.1
93%
1001
09:00
+18°C
4.1
81%
1002
10:00
+20°C
3.3
72%
1002
11:00
+22°C
3.5
64%
1002
12:00
+24°C
4.9
57%
1001
13:00
+25°C
6.3
52%
1000
14:00
+26°C
6.3
47%
999
15:00
+26°C
6
44%
998
16:00
+26°C
5.5
44%
997
17:00
+25°C
4.3
48%
997
18:00
+22°C
3.5
66%
997
19:00
+20°C
2
72%
997
20:00
+19°C
1.7
80%
997
21:00
+17°C
5.3
90%
997
22:00
+17°C
10.4
87%
997
23:00
+17°C
11.2
80%
997
03 September 2026, Thursday
+16°C / +27°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
9.8
81%
997
01:00
+16°C
7.9
84%
997
02:00
+17°C
7.6
82%
996
03:00
+17°C
8.7
83%
996
04:00
+17°C
7.8
85%
996
05:00
+17°C
6.5
87%
996
06:00
+16°C
6.7
88%
997
07:00
+16°C
5.7
89%
998
08:00
+18°C
10.3
83%
999
09:00
+21°C
10.1
72%
999
10:00
+23°C
10.6
63%
1000
11:00
+24°C
12.8
58%
999
12:00
+25°C
13.3
55%
999
13:00
+26°C
11.7
53%
998
14:00
+27°C
9.5
52%
997
15:00
+27°C
7.5
54%
996
16:00
+26°C
6.5
58%
995
17:00
+26°C
6.5
63%
995
18:00
+24°C
6.8
70%
995
19:00
+23°C
6.2
76%
995
20:00
+21°C
5.2
83%
996
21:00
+20°C
4.2
88%
996
22:00
+20°C
3.5
89%
996
23:00
+21°C
2.7
86%
996
04 September 2026, Friday
+18°C / +25°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+21°C
1.8
83%
996
01:00
+21°C
3.1
83%
996
02:00
+20°C
6.9
83%
996
03:00
+20°C
9.5
84%
996
04:00
+19°C
10.5
85%
996
05:00
+19°C
10.3
88%
997
06:00
+18°C
9.6
89%
997
07:00
+19°C
8.1
88%
998
08:00
+19°C
6
85%
999
09:00
+20°C
4.5
82%
999
10:00
+21°C
4.2
79%
999
11:00
+22°C
4.5
74%
999
12:00
+23°C
5.5
70%
999
13:00
+24°C
7.2
65%
999
14:00
+25°C
9.5
60%
998
15:00
+25°C
11.1
57%
997
16:00
+25°C
11.3
60%
997
17:00
+23°C
10.8
65%
997
18:00
+22°C
10.2
70%
997
19:00
+21°C
10.1
72%
997
20:00
+20°C
10.3
72%
998
21:00
+19°C
10.7
72%
998
22:00
+18°C
10.8
72%
999
23:00
+18°C
10.6
72%
999
05 September 2026, Saturday
+13°C / +23°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
10.6
73%
1000
01:00
+16°C
10.5
75%
1000
02:00
+15°C
10.7
78%
999
03:00
+14°C
10.6
80%
999
04:00
+14°C
10.3
83%
999
05:00
+13°C
9.9
86%
1000
06:00
+13°C
9.6
87%
1000
07:00
+13°C
9.6
84%
1001
08:00
+15°C
9.7
79%
1002
09:00
+16°C
10.1
71%
1003
10:00
+18°C
10.8
60%
1003
11:00
+20°C
11.9
49%
1003
12:00
+21°C
12.9
42%
1003
13:00
+22°C
14.1
38%
1002
14:00
+23°C
15.3
36%
1001
15:00
+23°C
16
35%
1001
16:00
+22°C
15.7
37%
1001
17:00
+21°C
14.9
41%
1001
18:00
+20°C
14.6
45%
1001
19:00
+19°C
18
43%
1003
20:00
+18°C
18.3
47%
1004
21:00
+16°C
18.4
50%
1004
22:00
+15°C
18.2
53%
1005
23:00
+15°C
17.8
55%
1005
06 September 2026, Sunday
+10°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
17.3
58%
1005
01:00
+13°C
16.8
60%
1006
02:00
+12°C
16.2
62%
1006
03:00
+11°C
15.7
63%
1006
04:00
+11°C
15.3
63%
1007
05:00
+11°C
15.2
61%
1008
06:00
+10°C
15.1
59%
1009
07:00
+10°C
15.2
57%
1009
08:00
+10°C
15.3
55%
1010
09:00
+10°C
15.1
53%
1010
10:00
+11°C
14.7
50%
1010
11:00
+13°C
13.9
48%
1009
12:00
+14°C
13.1
45%
1008
13:00
+16°C
12.5
43%
1007
14:00
+17°C
12
42%
1006
15:00
+17°C
11.6
41%
1006
16:00
+17°C
11.6
42%
1006
17:00
+16°C
11.7
44%
1006
18:00
+15°C
12.1
46%
1006
19:00
+14°C
12.5
49%
1006
20:00
+13°C
12.6
52%
1006
21:00
+12°C
12.4
56%
1006
22:00
+11°C
11.9
59%
1006
23:00
+11°C
11
64%
1005
07 September 2026, Monday
+9°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
10
69%
1005
01:00
+9°C
8.9
74%
1005
02:00
+9°C
7.9
78%
1005
03:00
+9°C
6.9
80%
1005
04:00
+9°C
6.1
79%
1005
05:00
+10°C
6.1
76%
1005
06:00
+11°C
7
72%
1006
07:00
+12°C
8.1
67%
1007
08:00
+13°C
9.4
63%
1007
09:00
+14°C
10.1
60%
1007
10:00
+15°C
10
56%
1007
11:00
+17°C
9.2
52%
1006
12:00
+19°C
8
48%
1005
13:00
+20°C
6.9
46%
1005
14:00
+21°C
5.7
44%
1004
15:00
+22°C
5.2
44%
1003
16:00
+21°C
5.3
47%
1003
17:00
+20°C
5.5
52%
1003
18:00
+19°C
6.2
59%
1003
19:00
+17°C
6.8
67%
1003
20:00
+16°C
7.7
75%
1003
21:00
+15°C
8.5
81%
1003
22:00
+15°C
9.2
82%
1003
23:00
+15°C
10.4
81%
1003
08 September 2026, Tuesday
+15°C / +25°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
11.4
78%
1003
01:00
+15°C
12.5
75%
1003
02:00
+15°C
13.3
72%
1003
03:00
+16°C
13.7
69%
1003
04:00
+16°C
13.5
68%
1003
05:00
+16°C
12.7
67%
1004
06:00
+16°C
11.6
67%
1004
07:00
+16°C
10.6
66%
1005
08:00
+17°C
9.5
64%
1005
09:00
+18°C
8.7
62%
1005
10:00
+19°C
8.3
59%
1005
11:00
+20°C
8.3
55%
1004
12:00
+22°C
9
51%
1003
13:00
+23°C
10.1
48%
1002
14:00
+25°C
11.1
46%
1002
15:00
+25°C
11.5
46%
1001
16:00
+25°C
11
48%
1001
17:00
+24°C
10
52%
1000
18:00
+23°C
8.8
58%
1000
19:00
+22°C
8
65%
1000
20:00
+20°C
7.7
72%
1000
21:00
+19°C
8.1
78%
1000
22:00
+19°C
8.6
82%
1000
23:00
+18°C
9.2
86%
1000
09 September 2026, Wednesday
+17°C / +23°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+18°C
9.9
88%
1000
01:00
+18°C
10.4
91%
1000
02:00
+17°C
10.9
92%
1000
03:00
+17°C
11.3
94%
1000
04:00
+17°C
11.5
96%
1000
05:00
+17°C
11.6
97%
1000
06:00
+17°C
11.7
97%
1000
07:00
+17°C
11.7
98%
1001
08:00
+17°C
11.4
98%
1001
09:00
+18°C
11.2
97%
1000
10:00
+19°C
10.7
95%
1000
11:00
+20°C
10.1
92%
999
12:00
+21°C
9.5
89%
998
13:00
+22°C
9.3
87%
996
14:00
+23°C
9.4
85%
995
15:00
+23°C
9.8
84%
995
16:00
+23°C
10.6
85%
994
17:00
+23°C
11.7
88%
994
18:00
+22°C
12.9
91%
994
19:00
+21°C
13.9
94%
994
20:00
+21°C
14.5
98%
994
21:00
+20°C
14.2
100%
994
22:00
+20°C
13.2
100%
994
23:00
+20°C
11.5
100%
994
10 September 2026, Thursday
+17°C / +24°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+20°C
9.5
100%
994
01:00
+20°C
7.5
100%
994
02:00
+20°C
5.4
99%
994
03:00
+20°C
4.3
99%
994
04:00
+20°C
4.2
99%
994
05:00
+20°C
5.5
100%
994
06:00
+20°C
7.3
100%
995
07:00
+20°C
9
100%
995
08:00
+20°C
10.6
100%
996
09:00
+20°C
11.5
98%
996
10:00
+21°C
12.1
93%
996
11:00
+22°C
12.6
86%
996
12:00
+22°C
13.5
79%
996
13:00
+23°C
14.7
72%
996
14:00
+24°C
16
68%
996
15:00
+24°C
16.7
65%
996
16:00
+23°C
16.5
66%
996
17:00
+23°C
15.3
68%
997
18:00
+22°C
13.7
71%
997
19:00
+21°C
12.1
75%
998
20:00
+20°C
10.4
79%
999
21:00
+19°C
9.6
83%
999
22:00
+18°C
9.5
86%
1000
23:00
+17°C
9.7
89%
1000
11 September 2026, Friday
+16°C / +26°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
10.3
92%
1000
01:00
+16°C
10.9
94%
1000
02:00
+16°C
11.4
96%
1000
03:00
+16°C
11.7
96%
1001
04:00
+16°C
11.7
96%
1001
05:00
+16°C
11.6
94%
1002
06:00
+16°C
11.6
92%
1003
07:00
+17°C
11.5
89%
1004
08:00
+18°C
11.6
84%
1004
09:00
+18°C
11.8
80%
1005
10:00
+19°C
11.9
74%
1005
11:00
+21°C
12.2
66%
1004
12:00
+23°C
12.5
59%
1004
13:00
+24°C
12.7
52%
1003
14:00
+26°C
13.1
48%
1003
15:00
+26°C
13.3
45%
1003
16:00
+26°C
13.3
44%
1003
17:00
+24°C
13.2
44%
1003
18:00
+23°C
13.1
45%
1004
19:00
+21°C
13.1
46%
1004
20:00
+19°C
12.9
48%
1005
21:00
+18°C
12.7
50%
1005
22:00
+17°C
12.4
53%
1005
23:00
+16°C
12
57%
1005
12 September 2026, Saturday
+14°C / +27°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
11.6
62%
1005
01:00
+14°C
11.2
67%
1005
02:00
+14°C
10.8
72%
1005
03:00
+14°C
10.3
74%
1005
04:00
+14°C
9.8
74%
1006
05:00
+14°C
9.5
72%
1006
06:00
+15°C
9.1
69%
1007
07:00
+16°C
8.7
66%
1007
08:00
+17°C
8.4
62%
1008
09:00
+18°C
7.9
59%
1008
10:00
+20°C
7
55%
1007
11:00
+21°C
5.9
51%
1007
12:00
+23°C
4.8
47%
1006
13:00
+25°C
3.9
44%
1006
14:00
+26°C
3.6
42%
1005
15:00
+27°C
3.8
41%
1005
16:00
+26°C
4.5
42%
1004
17:00
+25°C
5.9
44%
1004
18:00
+23°C
7.6
47%
1005
19:00
+21°C
9.4
51%
1005
20:00
+19°C
10.9
55%
1005
21:00
+18°C
11.7
58%
1005
22:00
+17°C
11.4
62%
1005
23:00
+16°C
10.5
67%
1005
13 September 2026, Sunday
+13°C / +26°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
9
72%
1005
01:00
+14°C
7.6
77%
1005
02:00
+13°C
6.1
81%
1005
03:00
+13°C
5
83%
1005
04:00
+13°C
4.6
84%
1005
05:00
+14°C
4.8
84%
1006
06:00
+14°C
5.4
82%
1006
07:00
+16°C
6.5
80%
1007
08:00
+17°C
7.3
76%
1007
09:00
+18°C
7.6
72%
1007
10:00
+19°C
7
66%
1007
11:00
+21°C
5.7
58%
1006
12:00
+23°C
4.3
51%
1005
13:00
+24°C
2.8
45%
1005
14:00
+26°C
2.2
42%
1004
15:00
+26°C
2
41%
1003
16:00
+25°C
1.8
44%
1003
17:00
+24°C
1.7
50%
1003
18:00
+22°C
1.9
60%
1003
19:00
+20°C
2.7
72%
1003
20:00
+18°C
3.9
84%
1003
21:00
+17°C
4.7
93%
1003
22:00
+16°C
5.6
97%
1002
23:00
+15°C
6.5
98%
1002


Climate Characteristics of Puerto Iguazú

General Overview

Puerto Iguazú features a humid subtropical/tropical climate. Unlike Buenos Aires, it is hot and humid year-round, and the region does not experience a true dry season—rain can fall at any time. Surrounded by dense rainforest, the area has very high humidity levels that intensify the sensation of heat.

Summer and Warm Months (December to March)

Summer here is scorching and stifling. Daytime temperatures regularly climb above 32°C (90°F), and the combination with humidity creates heavy heat stress. This is when the falls are at their peak water volume, but visiting can be tiring due to the heat. Intense and sudden tropical thunderstorms are very common in the afternoons.

Winter Season (June to August)

Winter in Puerto Iguazú is among the mildest and most pleasant in Argentina. Daytime temperatures are very comfortable (around 23°C to 25°C / 73-77°F) and nights are fresh but not freezing (about 14°C / 57°F). This is a very popular time to visit the falls for those wishing to avoid extreme heat, though rainy days are still possible.

Precipitation and Humidity

Rain is an integral part of the Iguazú experience. There is no "dry" month, and the annual rainfall is among the highest in the country. Humidity stays around 80% throughout most of the year, keeping the vegetation lush and evergreen.

 

 

 

Weather in Puerto Iguazú by Month

January

Very hot and humid. 33°C (91°F) daytime and 22°C (72°F) at night. Frequent tropical rains and strong water flow in the falls.

February

Similar to January. Heavy heat (32°C/90°F daytime) and high humidity. Skies shift quickly between scorching sun and pouring rain.

March

Still hot but with slight relief. 31°C (88°F) daytime. This is a relatively rainy month.

April

Excellent time to visit. Temperatures drop to a more comfortable 28°C (82°F) and humidity decreases slightly.

May

Very pleasant. 25°C (77°F) daytime and cool, pleasant nights (15°C/59°F). Skies are clearer.

June

Mild winter. 23°C (73°F) daytime. Cloudy days and light rain are possible, but the weather is very comfortable for tours.

July

The coldest month (relatively). 22°C (72°F) daytime and 13°C (55°F) at night. Spring-like, pleasant weather.

August

Temperatures begin to rise (25°C/77°F daytime). A very comfortable month with relatively less precipitation.

September

Noticeable warming. 27°C (81°F) daytime. Humidity starts rising again toward spring.

October

Hot and very rainy. 29°C (84°F) daytime. One of the wettest months of the year.

November

Hot and humid. 31°C (88°F) daytime. The atmosphere becomes more tropical and stifling.

December

Start of the scorching summer. 32°C (90°F) daytime. Afternoon thunderstorms become routine.

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Puerto Iguazú