El Chaltén monthly weather forecast

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

21 October 2026, Wednesday
+3°C / +8°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+4°C
3.1
89%
976
01:00
+4°C
4.1
90%
976
02:00
+4°C
3.9
91%
977
03:00
+4°C
3.5
92%
977
04:00
+4°C
4.5
93%
976
05:00
+4°C
5.2
95%
977
06:00
+4°C
5.5
96%
977
07:00
+4°C
5.9
97%
977
08:00
+4°C
6.2
96%
978
09:00
+4°C
6.7
95%
979
10:00
+4°C
7.2
91%
979
11:00
+5°C
7.8
87%
979
12:00
+6°C
7.5
81%
979
13:00
+7°C
7.3
75%
979
14:00
+8°C
7.7
70%
978
15:00
+8°C
9.7
70%
978
16:00
+8°C
9.5
67%
978
17:00
+8°C
7
64%
978
18:00
+8°C
5.9
62%
977
19:00
+8°C
4.8
62%
977
20:00
+7°C
2.5
71%
976
21:00
+5°C
2.9
72%
976
22:00
+4°C
4.4
75%
976
23:00
+3°C
4.9
78%
976
22 October 2026, Thursday
0°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
4.7
78%
976
01:00
+2°C
4.4
78%
976
02:00
+2°C
3.8
77%
975
03:00
+2°C
3.2
76%
975
04:00
+2°C
2.7
76%
975
05:00
+1°C
2.7
79%
975
06:00
+1°C
3.1
82%
974
07:00
0
4.1
85%
974
08:00
+2°C
7.1
84%
974
09:00
+5°C
4.5
77%
974
10:00
+8°C
2.8
68%
974
11:00
+9°C
4.7
68%
974
12:00
+10°C
6.5
70%
973
13:00
+10°C
7.6
71%
973
14:00
+11°C
8.3
70%
973
15:00
+12°C
7.4
68%
972
16:00
+12°C
6.5
65%
972
17:00
+13°C
5.8
64%
971
18:00
+13°C
4.6
63%
971
19:00
+12°C
3.3
64%
971
20:00
+11°C
0.2
74%
971
21:00
+8°C
2.7
80%
971
22:00
+6°C
5.4
83%
971
23:00
+5°C
6.9
81%
971
23 October 2026, Friday
+2°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
8.2
81%
970
01:00
+3°C
7.6
81%
970
02:00
+2°C
6.7
79%
970
03:00
+2°C
6.2
78%
970
04:00
+2°C
6.2
76%
970
05:00
+2°C
6.4
76%
970
06:00
+2°C
6.8
77%
971
07:00
+2°C
6.7
78%
971
08:00
+5°C
7.8
79%
972
09:00
+9°C
5.1
74%
973
10:00
+11°C
3.5
50%
974
11:00
+12°C
4.8
49%
974
12:00
+13°C
8.7
51%
974
13:00
+13°C
9.7
54%
974
14:00
+14°C
8.8
52%
973
15:00
+15°C
9.9
50%
973
16:00
+14°C
12.6
48%
973
17:00
+14°C
9.8
47%
974
18:00
+14°C
7.1
47%
974
19:00
+14°C
3.4
47%
973
20:00
+13°C
0.3
56%
973
21:00
+10°C
1.7
61%
973
22:00
+8°C
4.5
72%
973
23:00
+7°C
5.5
76%
973
24 October 2026, Saturday
+4°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+6°C
6.4
79%
973
01:00
+6°C
7
79%
973
02:00
+5°C
6.7
80%
973
03:00
+5°C
5.5
81%
973
04:00
+5°C
4.5
82%
973
05:00
+4°C
4.3
82%
973
06:00
+4°C
4.5
82%
973
07:00
+4°C
4.8
81%
973
08:00
+7°C
6.2
79%
974
09:00
+11°C
3.1
68%
975
10:00
+13°C
2.9
59%
975
11:00
+14°C
4.1
58%
975
12:00
+15°C
4.3
57%
975
13:00
+16°C
4.3
57%
974
14:00
+17°C
3.3
54%
974
15:00
+18°C
2.1
48%
974
16:00
+18°C
2.4
44%
974
17:00
+18°C
4
40%
973
18:00
+18°C
5.5
39%
973
19:00
+16°C
6.3
43%
973
20:00
+13°C
7
53%
973
21:00
+11°C
7.9
63%
972
22:00
+10°C
8.8
66%
972
23:00
+9°C
9.3
67%
972
25 October 2026, Sunday
+6°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
9.6
68%
971
01:00
+8°C
9.6
70%
971
02:00
+8°C
9.6
71%
970
03:00
+8°C
9.6
73%
970
04:00
+7°C
10.2
77%
970
05:00
+6°C
11
80%
970
06:00
+6°C
11.6
82%
970
07:00
+8°C
12
82%
970
08:00
+10°C
12.4
79%
970
09:00
+12°C
12
75%
970
10:00
+13°C
10.2
68%
971
11:00
+15°C
8.3
60%
970
12:00
+16°C
7.3
55%
970
13:00
+17°C
7.7
52%
970
14:00
+18°C
8.7
51%
969
15:00
+18°C
9.4
50%
969
16:00
+17°C
9.6
51%
969
17:00
+17°C
9.5
53%
968
18:00
+16°C
9.6
55%
968
19:00
+14°C
9.7
61%
968
20:00
+11°C
10.2
70%
967
21:00
+9°C
10.7
77%
967
22:00
+8°C
11.4
80%
966
23:00
+8°C
12.3
80%
966
26 October 2026, Monday
+6°C / +17°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
12.6
80%
966
01:00
+7°C
11.6
80%
965
02:00
+7°C
10.3
78%
965
03:00
+7°C
9.1
78%
965
04:00
+7°C
8.9
79%
965
05:00
+6°C
8.9
80%
965
06:00
+6°C
8.7
81%
965
07:00
+7°C
7.7
82%
965
08:00
+9°C
6.6
81%
965
09:00
+11°C
5.3
78%
966
10:00
+13°C
3.4
72%
965
11:00
+14°C
2.3
63%
965
12:00
+15°C
2.8
57%
965
13:00
+16°C
3.3
54%
964
14:00
+16°C
5.2
52%
964
15:00
+17°C
7.2
51%
964
16:00
+16°C
8.7
50%
963
17:00
+16°C
10.2
51%
963
18:00
+15°C
11
53%
963
19:00
+13°C
5.7
63%
963
20:00
+12°C
5.9
67%
963
21:00
+11°C
6.3
71%
963
22:00
+10°C
6.8
73%
963
23:00
+10°C
7.4
74%
963
27 October 2026, Tuesday
+8°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
8
74%
963
01:00
+9°C
8.7
74%
964
02:00
+9°C
9.4
74%
964
03:00
+9°C
10.1
73%
964
04:00
+9°C
11.2
72%
964
05:00
+9°C
12.2
70%
965
06:00
+9°C
13.7
68%
965
07:00
+10°C
14.8
66%
966
08:00
+10°C
15.8
64%
966
09:00
+10°C
16.2
62%
967
10:00
+11°C
16.1
60%
967
11:00
+11°C
15.7
58%
967
12:00
+12°C
15
56%
968
13:00
+13°C
14.3
54%
968
14:00
+13°C
13.7
53%
968
15:00
+13°C
13
53%
968
16:00
+13°C
12.2
55%
968
17:00
+12°C
11.1
58%
968
18:00
+11°C
10.1
61%
968
19:00
+10°C
9.1
65%
968
20:00
+9°C
8.4
69%
968
21:00
+9°C
8
72%
968
22:00
+8°C
8.2
74%
968
23:00
+8°C
8.5
75%
967
28 October 2026, Wednesday
+7°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
9.1
75%
967
01:00
+7°C
9.6
75%
966
02:00
+7°C
10.2
75%
965
03:00
+7°C
10.7
75%
965
04:00
+7°C
11.3
76%
964
05:00
+7°C
11.8
76%
964
06:00
+8°C
12.3
77%
964
07:00
+8°C
12.9
77%
963
08:00
+9°C
13.2
76%
963
09:00
+10°C
13.4
75%
962
10:00
+11°C
13.4
72%
962
11:00
+12°C
13.3
68%
962
12:00
+13°C
13
64%
962
13:00
+14°C
12.5
60%
962
14:00
+15°C
12
58%
961
15:00
+15°C
11.3
57%
961
16:00
+15°C
10.2
58%
961
17:00
+14°C
9
62%
960
18:00
+13°C
7.5
66%
960
19:00
+12°C
6.1
71%
959
20:00
+11°C
5.2
76%
958
21:00
+11°C
4.8
80%
958
22:00
+11°C
5.1
82%
956
23:00
+11°C
6
84%
955
29 October 2026, Thursday
+6°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
7.2
85%
953
01:00
+11°C
8.6
85%
952
02:00
+11°C
10.1
84%
950
03:00
+11°C
11.3
82%
950
04:00
+11°C
12.4
79%
949
05:00
+11°C
13.6
75%
950
06:00
+10°C
14.9
70%
950
07:00
+10°C
15.9
65%
951
08:00
+10°C
17
61%
952
09:00
+10°C
17.9
58%
952
10:00
+10°C
18.8
57%
952
11:00
+10°C
19.7
57%
952
12:00
+10°C
20.4
57%
952
13:00
+10°C
20.9
57%
952
14:00
+10°C
21.3
58%
952
15:00
+10°C
21.3
58%
952
16:00
+10°C
20.7
57%
953
17:00
+9°C
19.8
57%
953
18:00
+8°C
18.6
57%
953
19:00
+8°C
17.3
57%
953
20:00
+7°C
16.2
57%
954
21:00
+7°C
15.5
58%
954
22:00
+6°C
15.2
60%
955
23:00
+6°C
15
63%
956
30 October 2026, Friday
+6°C / +9°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+6°C
15.1
66%
957
01:00
+6°C
15.3
70%
958
02:00
+6°C
15.7
72%
959
03:00
+6°C
16.1
73%
959
04:00
+6°C
16.6
73%
960
05:00
+6°C
17.5
70%
960
06:00
+6°C
18.5
67%
960
07:00
+7°C
19.5
64%
961
08:00
+7°C
20.4
62%
961
09:00
+7°C
21.1
60%
961
10:00
+7°C
21.7
59%
961
11:00
+8°C
22.2
58%
961
12:00
+8°C
22.8
58%
961
13:00
+9°C
23.2
58%
961
14:00
+9°C
23.2
58%
960
15:00
+9°C
23
58%
960
16:00
+9°C
22.2
59%
960
17:00
+9°C
21.3
59%
959
18:00
+9°C
20
60%
959
19:00
+8°C
18.6
61%
958
20:00
+8°C
17.7
62%
958
21:00
+8°C
17.1
62%
957
22:00
+8°C
16.7
63%
957
23:00
+8°C
16.5
64%
956
31 October 2026, Saturday
+7°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
16.6
65%
956
01:00
+7°C
16.7
66%
955
02:00
+7°C
16.8
67%
955
03:00
+7°C
16.8
67%
954
04:00
+7°C
16.4
67%
954
05:00
+8°C
16
67%
954
06:00
+8°C
15.3
67%
954
07:00
+8°C
15
66%
954
08:00
+9°C
14.7
65%
953
09:00
+9°C
14.6
65%
953
10:00
+9°C
15
64%
953
11:00
+10°C
15.5
63%
953
12:00
+11°C
16.1
62%
953
13:00
+11°C
16.8
61%
952
14:00
+11°C
17.3
60%
952
15:00
+11°C
17.5
60%
952
16:00
+11°C
17.3
61%
952
17:00
+11°C
16.8
62%
952
18:00
+10°C
16.1
63%
952
19:00
+10°C
15.2
65%
952
20:00
+9°C
14.5
67%
951
21:00
+9°C
13.8
68%
951
22:00
+8°C
13.2
69%
951
23:00
+8°C
12.7
69%
951
01 November 2026, Sunday
+7°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
12.2
70%
951
01:00
+8°C
11.7
70%
950
02:00
+8°C
11.3
70%
950
03:00
+8°C
10.7
71%
950
04:00
+8°C
10.2
72%
949
05:00
+8°C
9.5
73%
949
06:00
+8°C
8.9
75%
949
07:00
+8°C
8.4
76%
949
08:00
+8°C
8.1
76%
948
09:00
+9°C
8.3
75%
948
10:00
+9°C
9
73%
948
11:00
+10°C
10.4
69%
947
12:00
+11°C
12.3
64%
947
13:00
+12°C
14.1
60%
946
14:00
+12°C
15.5
57%
946
15:00
+13°C
16.2
56%
946
16:00
+12°C
16.2
55%
946
17:00
+12°C
15.5
55%
945
18:00
+11°C
14.6
56%
945
19:00
+10°C
13.5
57%
945
20:00
+9°C
12.4
58%
945
21:00
+8°C
11.3
60%
945
22:00
+8°C
10.5
62%
945
23:00
+7°C
9.8
65%
945
02 November 2026, Monday
+4°C / +9°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+6°C
9
69%
945
01:00
+5°C
8.3
73%
945
02:00
+5°C
7.4
76%
945
03:00
+5°C
6.5
77%
945
04:00
+5°C
5.4
76%
945
05:00
+5°C
4
74%
946
06:00
+6°C
2.6
71%
947
07:00
+6°C
1.1
68%
948
08:00
+7°C
0.2
65%
948
09:00
+7°C
0.6
63%
949
10:00
+8°C
1.3
61%
949
11:00
+8°C
2.4
58%
950
12:00
+9°C
3.8
56%
950
13:00
+9°C
5.3
54%
950
14:00
+9°C
6.6
52%
951
15:00
+9°C
7.3
52%
951
16:00
+9°C
7.3
53%
951
17:00
+8°C
7.3
55%
951
18:00
+8°C
7
57%
952
19:00
+7°C
7
60%
952
20:00
+6°C
7.2
63%
952
21:00
+5°C
7.4
65%
952
22:00
+5°C
7.5
67%
953
23:00
+4°C
7.1
69%
953
03 November 2026, Tuesday
+2°C / +10°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
6.7
71%
953
01:00
+2°C
6.5
72%
953
02:00
+2°C
6.1
73%
953
03:00
+2°C
6.1
73%
953
04:00
+2°C
6.5
72%
953
05:00
+2°C
7.2
70%
953
06:00
+3°C
7.9
68%
953
07:00
+4°C
8.5
65%
953
08:00
+5°C
8.9
62%
953
09:00
+6°C
8.8
60%
953
10:00
+7°C
7.8
58%
952
11:00
+7°C
6.5
56%
952
12:00
+8°C
5
54%
951
13:00
+9°C
4.1
52%
951
14:00
+9°C
4
51%
950
15:00
+10°C
4.2
50%
950
16:00
+9°C
4.1
51%
950
17:00
+9°C
3.5
52%
949
18:00
+8°C
2.7
54%
949
19:00
+7°C
2
56%
949
20:00
+6°C
1.7
59%
949
21:00
+6°C
2
61%
949
22:00
+5°C
2.6
63%
948
23:00
+4°C
3.3
65%
948


Climate Characteristics of El Chaltén

General Overview

El Chaltén features a cool temperate climate. The weather here is considered one of the most unpredictable and wild in the world. Exposed to powerful westerly winds from the Pacific and the Southern Patagonian Ice Field, the town experiences extreme shifts within minutes.

Trekking Season and Summer (December to February)

Summer is the most popular season but far from warm. Daytime temperatures range between 14°C and 18°C (57-64°F), dropping to 5°C (41°F) at night. Wind is the dominant element: Gusts exceeding 100 km/h are common in summer and can make trekking challenging. Clear sunny days can turn into rain or snowstorms in no time.

Winter Season (June to August)

Winter in El Chaltén is very cold, quiet, and snowy. Daytime temperatures range from 1°C to 4°C (34-39°F), while nighttime lows are consistently below 0°C (32°F). Most trails close or become hazardous due to snow and ice accumulation. Daylight hours are very short, and many local businesses close during this period.

Transition Seasons (March-May and September-November)

Autumn (April-May) is considered by many the most beautiful time, as winds calm and vegetation turns deep red and orange. Spring (October-November) features snowmelt and lengthening days, but it is also when the strongest winds begin to blow.

 

Weather in El Chaltén by Month

January

Peak trekking season. 18°C (64°F) daytime. Very long days allowing for extended hikes, but winds are very strong.

February

Similar to January (17°C/63°F daytime). Relatively comfortable weather and winds calm toward month's end.

March

Start of autumn. 15°C (59°F) daytime. Fall colors begin to appear and skies are often clearer.

April

The most beautiful month for photography. 11°C (52°F) daytime. Foliage at its peak, winds die down, and visibility is excellent.

May

Cold and wet (7°C/45°F daytime). First snow showers possible and days shorten significantly.

June

Start of winter. 4°C (39°F) daytime and freezing nights (-2°C/28°F). Mostly grey skies and snow is common.

July

The coldest month. 3°C (37°F) daytime and -3°C (27°F) at night. Minimal daylight hours and heavy snow on trails.

August

Still very cold (4°C/39°F daytime). Wintry weather but winds begin to strengthen.

September

Start of spring. 8°C (46°F) daytime. Unpredictable month with a mix of sun, rain, and snow.

October

Gradual warming (12°C/54°F daytime). Blooms begin but strong winds return.

November

Warmer spring (15°C/59°F daytime). Long days attracting the season's first hikers.

December

Start of summer. 17°C (63°F) daytime. Daylight hours at their peak (longest day of the year) and winds are very strong.

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