Mon
Apr 29
Extremely unstable
Tue
Apr 30
Extremely unstable
Wed
May 1
Extremely unstable
Thu
May 2
Extremely unstable
Fri
May 3
Extremely unstable
28 Apr will be cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be clear:
The highest temperature will reach -4 degrees Celsius, while the the lowest temperature will drop to -10 degrees Celsius. The wind will be a fresh breeze, and the mean air pressure will be 1016 mb. Relative humidity will be moderate.
Sunday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
11:00
-6 °C
-12 °C
15 km/h 
23 km/h
1017 mb
19.9%
5,467 m
1,586 m
Apr, 28 11:00 @ Unstable
14:00
-5 °C
-13 °C
27 km/h 
40 km/h
1012 mb
17.6%
5,588 m
2,464 m
Apr, 28 14:00 @ Slightly unstable
17:00
-7 °C
-16 °C
35 km/h
40 km/h
1015 mb
23.2%
5,379 m
1,566 m
Apr, 28 17:00 @ Highly unstable
20:00
-9 °C
-15 °C
14 km/h
20 km/h
1019 mb
31.0%
5,143 m
666 m
Apr, 28 20:00 @ Extremely unstable
23:00
-10 °C
-16 °C
11 km/h
11 km/h
1021 mb
37.6%
5,072 m
103 m
Apr, 28 23:00 @ Extremely unstable
29 Apr will be cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be clear:
The highest temperature will reach -6 degrees Celsius, while the the lowest temperature will drop to -13 degrees Celsius. The wind will be a moderate breeze, and the mean air pressure will be 1020 mb. Relative humidity will be moderate.
Monday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-11 °C
-17 °C
12 km/h
14 km/h
1022 mb
44.1%
4,945 m
44 m
Apr, 29 02:00 @ Highly unstable
05:00
-13 °C
-20 °C
13 km/h
16 km/h
1022 mb
48.7%
4,636 m
27 m
Apr, 29 05:00 @ Extremely unstable
08:00
-12 °C
-19 °C
13 km/h
14 km/h
1024 mb
44.1%
4,744 m
220 m
Apr, 29 08:00 @ Extremely unstable
11:00
-8 °C
-16 °C
20 km/h
27 km/h
1021 mb
27.3%
5,133 m
1,364 m
Apr, 29 11:00 @ Extremely unstable
14:00
-7 °C
-15 °C
29 km/h
36 km/h
1016 mb
20.2%
5,335 m
1,900 m
Apr, 29 14:00 @ Highly unstable
17:00
-8 °C
-17 °C
28 km/h
36 km/h
1017 mb
27.8%
5,242 m
1,559 m
Apr, 29 17:00 @ Extremely unstable
20:00
-10 °C
-17 °C
16 km/h
20 km/h
1022 mb
43.3%
5,007 m
765 m
Apr, 29 20:00 @ Extremely unstable
23:00
-11 °C
-17 °C
10 km/h
12 km/h
1024 mb
53.1%
4,848 m
174 m
Apr, 29 23:00 @ Extremely unstable
30 Apr will be cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be clear:
1% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
The highest temperature will reach -6 degrees Celsius, while the the lowest temperature will drop to -15 degrees Celsius. The wind will be a moderate breeze, and the mean air pressure will be 1021 mb. Relative humidity will be moderate.
Tuesday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-13 °C
-19 °C
11 km/h
12 km/h
1025 mb
61.7%
4,586 m
45 m
Apr, 30 02:00 @ Extremely unstable
05:00
-14 °C
-21 °C
12 km/h
15 km/h
1025 mb
61.4%
4,375 m
34 m
Apr, 30 05:00 @ Extremely unstable
08:00
-13 °C
-19 °C
11 km/h
12 km/h
1026 mb
45.6%
4,615 m
179 m
Apr, 30 08:00 @ Extremely unstable
11:00
-9 °C
-16 °C
16 km/h
23 km/h
1021 mb
18.0%
5,112 m
1,265 m
Apr, 30 11:00 @ Extremely unstable
14:00
-7 °C
-15 °C
23 km/h
35 km/h
1017 mb
14.3%
5,337 m
1,843 m
Apr, 30 14:00 @ Highly unstable
17:00
-8 °C
-16 °C
24 km/h
34 km/h
1017 mb
21.3%
5,262 m
1,601 m
Apr, 30 17:00 @ Extremely unstable
20:00
-10 °C
-16 °C
12 km/h
17 km/h
1022 mb
38.2%
4,989 m
521 m
Apr, 30 20:00 @ Extremely unstable
23:00
-11 °C
-16 °C
9 km/h
11 km/h
1023 mb
47.4%
4,946 m
47 m
Apr, 30 23:00 @ Extremely unstable
1 May will be cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be slightly cloudy:
9% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
The highest temperature will reach -7 degrees Celsius, while the the lowest temperature will drop to -14 degrees Celsius. The wind will be a strong breeze, and the mean air pressure will be 1020 mb. Relative humidity will be moderate.
Wednesday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-12 °C
-19 °C
12 km/h
15 km/h
1023 mb
47.4%
4,724 m
22 m
May, 1 02:00 @ Extremely unstable
05:00
-14 °C
-21 °C
13 km/h
15 km/h
1023 mb
46.8%
4,479 m
26 m
May, 1 05:00 @ Extremely unstable
08:00
-12 °C
-19 °C
13 km/h
13 km/h
1024 mb
37.3%
4,704 m
207 m
May, 1 08:00 @ Extremely unstable
11:00
-8 °C
-17 °C
24 km/h
44 km/h
1019 mb
25.3%
5,138 m
1,640 m
May, 1 11:00 @ Extremely unstable
14:00
-7 °C
-17 °C
38 km/h
57 km/h
1015 mb
25.6%
5,244 m
2,082 m
May, 1 14:00 @ Extremely unstable
17:00
-9 °C
-20 °C
43 km/h
55 km/h
1017 mb
34.5%
5,057 m
1,657 m
May, 1 17:00 @ Extremely unstable
20:00
-11 °C
-21 °C
24 km/h
38 km/h
1020 mb
48.8%
4,808 m
1,162 m
May, 1 20:00 @ Extremely unstable
23:00
-12 °C
-20 °C
17 km/h
22 km/h
1021 mb
53.5%
4,676 m
412 m
May, 1 23:00 @ Extremely unstable
2 May will be cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be partly cloudy:
30% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
1% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
The highest temperature will reach -8 degrees Celsius, while the the lowest temperature will drop to -15 degrees Celsius. The wind will be a fresh breeze, and the mean air pressure will be 1018 mb. Relative humidity will be moderate.
Thursday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-14 °C
-21 °C
13 km/h
15 km/h
1022 mb
58.6%
4,460 m
82 m
May, 2 02:00 @ Extremely unstable
05:00
-15 °C
-22 °C
13 km/h
15 km/h
1021 mb
61.8%
4,299 m
52 m
May, 2 05:00 @ Extremely unstable
08:00
-13 °C
-21 °C
15 km/h
17 km/h
1022 mb
52.4%
4,492 m
403 m
May, 2 08:00 @ Extremely unstable
11:00
-10 °C
-19 °C
22 km/h
39 km/h
1018 mb
28.0%
4,926 m
1,513 m
May, 2 11:00 @ Extremely unstable
14:00
-8 °C
-19 °C
34 km/h
53 km/h
1014 mb
24.3%
5,084 m
1,995 m
May, 2 14:00 @ Extremely unstable
17:00
-10 °C
-21 °C
35 km/h
51 km/h
1015 mb
34.3%
4,935 m
1,674 m
May, 2 17:00 @ Extremely unstable
20:00
-12 °C
-21 °C
18 km/h
30 km/h
1019 mb
50.9%
4,676 m
975 m
May, 2 20:00 @ Extremely unstable
23:00
-14 °C
-22 °C
15 km/h
18 km/h
1020 mb
56.5%
4,457 m
310 m
May, 2 23:00 @ Extremely unstable
3 May will be very cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be partly cloudy:
36% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
The highest temperature will reach -10 degrees Celsius, while the the lowest temperature will drop to -17 degrees Celsius. The wind will be a strong breeze, and the mean air pressure will be 1020 mb. Relative humidity will be moderate.
Friday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-15 °C
-23 °C
15 km/h
18 km/h
1020 mb
61.8%
4,240 m
192 m
May, 3 02:00 @ Extremely unstable
05:00
-16 °C
-25 °C
17 km/h
20 km/h
1020 mb
60.3%
4,098 m
219 m
May, 3 05:00 @ Extremely unstable
08:00
-15 °C
-25 °C
22 km/h
42 km/h
1021 mb
45.8%
4,284 m
1,117 m
May, 3 08:00 @ Extremely unstable
11:00
-12 °C
-22 °C
34 km/h
58 km/h
1019 mb
25.4%
4,734 m
1,642 m
May, 3 11:00 @ Extremely unstable
14:00
-11 °C
-22 °C
45 km/h
64 km/h
1016 mb
27.7%
4,821 m
1,922 m
May, 3 14:00 @ Extremely unstable
17:00
-11 °C
-23 °C
39 km/h
52 km/h
1018 mb
31.7%
4,765 m
1,571 m
May, 3 17:00 @ Extremely unstable
20:00
-14 °C
-22 °C
14 km/h
16 km/h
1023 mb
46.1%
4,442 m
479 m
May, 3 20:00 @ Extremely unstable
23:00
-15 °C
-22 °C
11 km/h
13 km/h
1025 mb
51.8%
4,205 m
54 m
May, 3 23:00 @ Extremely unstable
4 May will be cold and the weather will be very unstable, severe thunderstorms likely.
The sky will be cloudy:
50% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
The highest temperature will reach -7 degrees Celsius, while the the lowest temperature will drop to -17 degrees Celsius. The wind will be a moderate breeze, and the mean air pressure will be 1021 mb. Relative humidity will be low.
Saturday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-16 °C
-23 °C
9 km/h
10 km/h
1024 mb
43.5%
4,065 m
22 m
May, 4 02:00 @ Extremely unstable
05:00
-17 °C
-23 °C
10 km/h
14 km/h
1024 mb
30.7%
3,987 m
14 m
May, 4 05:00 @ Highly unstable
08:00
-14 °C
-21 °C
10 km/h
13 km/h
1025 mb
18.5%
4,340 m
97 m
May, 4 08:00 @ Extremely unstable
11:00
-10 °C
-17 °C
14 km/h
19 km/h
1020 mb
7.63%
4,939 m
1,058 m
May, 4 11:00 @ Extremely unstable
14:00
-8 °C
-16 °C
23 km/h
43 km/h
1015 mb
8.13%
5,191 m
1,935 m
May, 4 14:00 @ Unstable
17:00
-9 °C
-19 °C
28 km/h
39 km/h
1018 mb
15.1%
5,064 m
1,516 m
May, 4 17:00 @ Highly unstable
20:00
-11 °C
-18 °C
12 km/h
15 km/h
1022 mb
27.8%
4,838 m
46 m
May, 4 20:00 @ Unstable
23:00
-13 °C
-20 °C
12 km/h
15 km/h
1024 mb
31.6%
4,556 m
19 m
May, 4 23:00 @ Unstable
5 May will be cold and the weather will be .
The sky will be :
275% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
The highest temperature will reach -7 degrees Celsius, while the the lowest temperature will drop to -15 degrees Celsius. The wind will be a moderate breeze, and the mean air pressure will be 6127 mb. Relative humidity will be .
Sunday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-14 °C
-21 °C
12 km/h
15 km/h
1024 mb
29.5%
4,417 m
19 m
May, 5 02:00 @ Highly unstable
05:00
-15 °C
-22 °C
13 km/h
17 km/h
1024 mb
24.8%
4,335 m
17 m
May, 5 05:00 @ Highly unstable
08:00
-12 °C
-19 °C
13 km/h
16 km/h
1025 mb
17.0%
4,742 m
92 m
May, 5 08:00 @ Highly unstable
11:00
-8 °C
-16 °C
22 km/h
38 km/h
1020 mb
9.22%
5,169 m
1,535 m
May, 5 11:00 @ Extremely unstable
14:00
-7 °C
-16 °C
29 km/h
46 km/h
1017 mb
11.9%
5,275 m
1,940 m
May, 5 14:00 @ Highly unstable
17:00
-9 °C
-18 °C
30 km/h
44 km/h
1019 mb
20.5%
5,147 m
1,594 m
May, 5 17:00 @ Extremely unstable
Cerros de Chajnantor
20:47 
