El Chaltén monthly weather forecast

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

17 July 2026, Friday
--5°C / --1°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-1
6.3
95%
952
01:00
-2
6
95%
952
02:00
-2
6.5
93%
953
03:00
-2
6.5
91%
953
04:00
-2
7
91%
953
05:00
-2
8.3
91%
954
06:00
-3
8.9
90%
954
07:00
-3
8.7
90%
955
08:00
-3
6.7
91%
955
09:00
-4
4.9
92%
956
10:00
-4
3.8
93%
956
11:00
-4
3.8
94%
957
12:00
-3
5.4
93%
957
13:00
-3
6.1
93%
957
14:00
-3
6.8
93%
957
15:00
-4
7.4
93%
957
16:00
-4
7.4
93%
957
17:00
-4
6.6
93%
957
18:00
-4
4.8
95%
957
19:00
-5
3.8
96%
957
20:00
-5
3.3
96%
957
21:00
-5
2.9
97%
957
22:00
-5
2.6
96%
957
23:00
-5
2.3
96%
957
18 July 2026, Saturday
--13°C / --4°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-5
1.8
94%
957
01:00
-5
1.8
92%
957
02:00
-6
2.1
90%
957
03:00
-5
1.7
87%
956
04:00
-7
1.7
87%
956
05:00
-8
2.2
85%
955
06:00
-10
4.7
80%
954
07:00
-11
6.7
77%
954
08:00
-11
7.2
74%
954
09:00
-10
7.7
71%
955
10:00
-10
8.3
68%
955
11:00
-9
9
66%
956
12:00
-7
8.3
64%
957
13:00
-6
7.1
63%
957
14:00
-5
6
60%
957
15:00
-4
5.1
58%
958
16:00
-4
3.3
57%
958
17:00
-5
2.5
60%
958
18:00
-7
2.9
64%
958
19:00
-9
4.9
66%
959
20:00
-11
7.4
70%
959
21:00
-11
9
72%
959
22:00
-12
9.6
70%
959
23:00
-13
10
68%
959
19 July 2026, Sunday
--13°C / --4°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-13
10
65%
959
01:00
-12
10.4
63%
960
02:00
-12
10.1
61%
960
03:00
-13
9.7
60%
960
04:00
-13
9.9
58%
960
05:00
-13
10.2
58%
960
06:00
-13
10.4
59%
960
07:00
-13
10.8
59%
960
08:00
-13
11.5
60%
960
09:00
-13
11.7
61%
960
10:00
-13
11.9
62%
960
11:00
-11
11.9
60%
961
12:00
-8
10.8
59%
961
13:00
-6
8.3
58%
962
14:00
-5
7.1
59%
962
15:00
-4
5.7
58%
961
16:00
-4
4.8
56%
961
17:00
-5
6.3
58%
961
18:00
-8
8.1
62%
961
19:00
-10
9
64%
960
20:00
-10
9.7
64%
960
21:00
-10
9.9
64%
961
22:00
-11
10.4
65%
961
23:00
-11
11
66%
961
20 July 2026, Monday
--12°C / --1°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-11
11.4
66%
961
01:00
-11
11.8
66%
961
02:00
-11
12.4
65%
962
03:00
-11
12.6
64%
962
04:00
-11
12.7
63%
962
05:00
-10
12.5
62%
962
06:00
-10
12.5
62%
962
07:00
-11
12.5
63%
963
08:00
-12
12.5
64%
963
09:00
-11
12
65%
964
10:00
-10
11.1
63%
964
11:00
-8
9.7
60%
965
12:00
-6
8.1
57%
965
13:00
-4
5.7
56%
966
14:00
-2
3
56%
966
15:00
-1
1
55%
966
16:00
-1
0.2
55%
966
17:00
-2
0.3
55%
967
18:00
-3
0.6
56%
967
19:00
-4
1.1
57%
967
20:00
-5
1.6
58%
967
21:00
-5
2.3
59%
968
22:00
-6
2.9
60%
968
23:00
-6
3.3
60%
968
21 July 2026, Tuesday
--11°C / --3°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-7
3.6
60%
968
01:00
-7
3.8
59%
968
02:00
-8
3.6
58%
968
03:00
-9
3.6
57%
968
04:00
-9
3.4
57%
967
05:00
-10
3.2
57%
967
06:00
-10
3.1
57%
967
07:00
-10
3.1
56%
967
08:00
-11
2.9
56%
967
09:00
-11
2.9
56%
968
10:00
-10
2.9
57%
968
11:00
-9
2.9
58%
968
12:00
-8
2.5
58%
968
13:00
-6
1.3
59%
968
14:00
-4
1
59%
968
15:00
-3
1.8
61%
968
16:00
-3
1.5
65%
967
17:00
-5
0.8
72%
967
18:00
-6
0.4
76%
966
19:00
-7
0.3
76%
966
20:00
-8
0.4
72%
966
21:00
-9
0.6
67%
966
22:00
-9
0.9
62%
966
23:00
-10
1.1
58%
966
22 July 2026, Wednesday
--14°C / --4°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-10
1.5
54%
965
01:00
-10
1.7
53%
965
02:00
-11
1.8
54%
965
03:00
-11
2
54%
964
04:00
-11
4
62%
961
05:00
-12
4.2
61%
960
06:00
-13
4.4
59%
960
07:00
-13
4.2
58%
960
08:00
-14
4
57%
960
09:00
-13
3.6
57%
960
10:00
-12
2.7
59%
960
11:00
-11
1.7
61%
960
12:00
-9
0.7
63%
960
13:00
-7
1.5
66%
960
14:00
-5
2.6
69%
960
15:00
-4
3.1
72%
961
16:00
-5
3.1
74%
961
17:00
-5
2.5
78%
961
18:00
-6
1.7
81%
961
19:00
-7
0.8
84%
961
20:00
-8
0.4
86%
962
21:00
-9
1.1
87%
962
22:00
-10
1.8
86%
962
23:00
-10
2.7
82%
962
23 July 2026, Thursday
--14°C / --3°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-10
3.6
78%
962
01:00
-10
4.5
73%
962
02:00
-10
5.3
69%
963
03:00
-11
5.8
66%
963
04:00
-11
6.3
64%
963
05:00
-12
6.7
61%
962
06:00
-13
7.1
59%
962
07:00
-14
7.3
57%
962
08:00
-14
7.3
56%
962
09:00
-14
6.9
56%
962
10:00
-13
6.2
55%
962
11:00
-11
4.7
56%
962
12:00
-8
3.3
57%
963
13:00
-6
1.8
58%
963
14:00
-4
0.6
59%
963
15:00
-3
0.2
60%
964
16:00
-3
0.4
62%
963
17:00
-4
0.3
65%
963
18:00
-5
0.4
69%
963
19:00
-6
0.9
72%
963
20:00
-8
1.6
75%
962
21:00
-9
2.2
76%
962
22:00
-9
2.7
75%
962
23:00
-10
3.6
74%
962
24 July 2026, Friday
--12°C / --4°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-10
4.3
72%
962
01:00
-11
5.1
69%
962
02:00
-11
5.8
67%
962
03:00
-11
6.1
65%
962
04:00
-12
6.3
63%
961
05:00
-12
6.5
61%
961
06:00
-12
6.7
59%
961
07:00
-12
6.5
58%
961
08:00
-11
6.1
57%
960
09:00
-11
5.6
57%
960
10:00
-10
4.5
58%
960
11:00
-9
3.2
61%
960
12:00
-7
1.4
64%
961
13:00
-6
0
68%
961
14:00
-5
1.5
71%
961
15:00
-4
2.2
74%
961
16:00
-4
2.3
77%
961
17:00
-4
2.2
80%
961
18:00
-4
1.6
83%
961
19:00
-5
0.9
86%
961
20:00
-6
0.3
87%
961
21:00
-6
0.4
88%
961
22:00
-7
0.7
88%
961
23:00
-7
1.3
86%
961
25 July 2026, Saturday
--10°C / +1°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-8
1.6
83%
961
01:00
-8
2.2
80%
960
02:00
-9
2.5
77%
960
03:00
-9
3.1
75%
960
04:00
-9
3.6
73%
960
05:00
-9
4.5
72%
959
06:00
-10
5.2
69%
959
07:00
-10
6
68%
959
08:00
-9
6.3
67%
959
09:00
-9
6.3
66%
959
10:00
-8
5.8
65%
959
11:00
-6
4.7
65%
959
12:00
-4
3.2
64%
959
13:00
-2
1.8
65%
959
14:00
0
0.6
65%
959
15:00
+1°C
0.3
66%
960
16:00
+1°C
0.6
68%
960
17:00
0
0.6
71%
959
18:00
-1
0.6
75%
959
19:00
-2
0.4
79%
959
20:00
-4
0
82%
959
21:00
-5
0.2
85%
959
22:00
-5
0.4
87%
958
23:00
-6
0.7
87%
958
26 July 2026, Sunday
--9°C / -0°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-7
1.3
87%
958
01:00
-8
1.7
87%
957
02:00
-8
1.9
86%
957
03:00
-8
2.1
85%
957
04:00
-8
2.1
85%
957
05:00
-8
1.9
84%
956
06:00
-8
1.5
84%
956
07:00
-8
1.4
83%
956
08:00
-7
1
82%
955
09:00
-7
0.6
81%
955
10:00
-6
0.3
80%
955
11:00
-4
0.4
79%
955
12:00
-3
0.9
77%
955
13:00
-2
1.5
76%
955
14:00
-1
1.8
76%
955
15:00
-0
1.8
76%
955
16:00
-1
1.5
77%
955
17:00
-2
0.9
79%
955
18:00
-4
0.5
82%
956
19:00
-5
1
85%
956
20:00
-7
1.8
86%
956
21:00
-8
2.7
87%
956
22:00
-8
3.8
85%
957
23:00
-9
4.9
81%
957
27 July 2026, Monday
--11°C / --1°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-9
6.3
78%
958
01:00
-9
7.4
74%
958
02:00
-9
8.5
70%
959
03:00
-10
9.4
68%
960
04:00
-10
9.9
66%
960
05:00
-10
10.5
65%
960
06:00
-10
10.9
64%
961
07:00
-11
11
63%
961
08:00
-11
11
63%
962
09:00
-10
10.7
62%
962
10:00
-9
10
62%
963
11:00
-7
8.7
61%
964
12:00
-5
7.3
61%
964
13:00
-3
6
61%
965
14:00
-2
5
61%
966
15:00
-1
4.6
61%
966
16:00
-1
5
61%
966
17:00
-2
5.9
62%
967
18:00
-4
7.1
63%
967
19:00
-6
8.5
63%
966
20:00
-7
9.6
64%
966
21:00
-8
10.5
64%
966
22:00
-8
10.9
64%
966
23:00
-8
11.3
63%
967
28 July 2026, Tuesday
--8°C / +3°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-8
11.3
62%
967
01:00
-7
11.3
62%
967
02:00
-6
11.3
61%
967
03:00
-6
11.4
61%
967
04:00
-5
11.4
61%
967
05:00
-5
11.2
63%
967
06:00
-5
11
64%
967
07:00
-4
10.9
66%
967
08:00
-4
10.9
67%
967
09:00
-3
11.3
68%
967
10:00
-2
12
67%
967
11:00
-1
13.2
66%
967
12:00
0
14.5
65%
967
13:00
+1°C
15.9
63%
967
14:00
+2°C
16.8
62%
967
15:00
+3°C
17.1
62%
967
16:00
+3°C
16.8
62%
967
17:00
+3°C
16.1
62%
967
18:00
+2°C
15
63%
967
19:00
+2°C
13.8
63%
966
20:00
+1°C
12.5
64%
966
21:00
+1°C
11.6
65%
966
22:00
0
10.9
66%
966
23:00
-0
10.3
67%
967
29 July 2026, Wednesday
--5°C / --1°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-1
9.7
69%
967
01:00
-1
9.2
70%
967
02:00
-2
8.6
71%
967
03:00
-2
8.1
72%
967
04:00
-3
7.6
73%
967
05:00
-3
7.4
74%
967
06:00
-4
7.1
74%
966
07:00
-4
6.6
75%
966
08:00
-5
5.9
76%
965
09:00
-5
5.1
77%
965
10:00
-5
3.5
80%
965
11:00
-4
1.5
83%
965
12:00
-3
1.5
87%
965
13:00
-3
3.4
91%
965
14:00
-2
5.2
95%
965
15:00
-2
6.1
97%
965
16:00
-2
6.1
98%
965
17:00
-2
5.2
98%
964
18:00
-2
4
97%
964
19:00
-2
2.3
96%
964
20:00
-3
0.9
95%
963
21:00
-3
0.5
92%
963
22:00
-3
1.5
90%
963
23:00
-3
2.6
86%
964


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.

El Chaltén weather forecast for tomorrow
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El Chaltén