San Juan (Argentina) weather
Find a forecast
Nearest forecast to your detected location
Forecast days
-
34° Maximum daytime temperature: 34° Celsius; 18° Minimum nighttime temperature: 18° Celsius;
Sunrise:
Sunset:
Sunny.Ex UVNo pollution data.No pollen data.34° Maximum daytime temperature: 34° Celsius; 18° Minimum nighttime temperature: 18° Celsius; -
29° Maximum daytime temperature: 29° Celsius; 16° Minimum nighttime temperature: 16° Celsius;
Sunrise:
Sunset:
Sunny changing to partly cloudy by nighttime.Ex UVNo pollution data.No pollen data.29° Maximum daytime temperature: 29° Celsius; 16° Minimum nighttime temperature: 16° Celsius; -
36° Maximum daytime temperature: 36° Celsius; 19° Minimum nighttime temperature: 19° Celsius;
Sunrise:
Sunset:
Sunny.Ex UVNo pollution data.No pollen data.36° Maximum daytime temperature: 36° Celsius; 19° Minimum nighttime temperature: 19° Celsius; -
27° Maximum daytime temperature: 27° Celsius; 15° Minimum nighttime temperature: 15° Celsius;
Sunrise:
Sunset:
Overcast changing to sunny intervals by late morning.Ex UVNo pollution data.No pollen data.27° Maximum daytime temperature: 27° Celsius; 15° Minimum nighttime temperature: 15° Celsius; -
24° Maximum daytime temperature: 24° Celsius; 11° Minimum nighttime temperature: 11° Celsius;
Sunrise:
Sunset:
Sunny intervals.Ex UVNo pollution data.No pollen data.24° Maximum daytime temperature: 24° Celsius; 11° Minimum nighttime temperature: 11° Celsius; -
25° Maximum daytime temperature: 25° Celsius; 10° Minimum nighttime temperature: 10° Celsius;
Sunrise:
Sunset:
Sunny.Ex UVNo pollution data.No pollen data.25° Maximum daytime temperature: 25° Celsius; 10° Minimum nighttime temperature: 10° Celsius; -
18° Maximum daytime temperature: 18° Celsius; 7° Minimum nighttime temperature: 7° Celsius;
Sunrise:
Sunset:
Sunny intervals changing to partly cloudy by nighttime.Ex UVNo pollution data.No pollen data.18° Maximum daytime temperature: 18° Celsius; 7° Minimum nighttime temperature: 7° Celsius;
Sunny.
Ex UV
No pollution data.
No pollen data.
Sunny changing to partly cloudy by nighttime.
Ex UV
No pollution data.
No pollen data.
Sunny.
Ex UV
No pollution data.
No pollen data.
Overcast changing to sunny intervals by late morning.
Ex UV
No pollution data.
No pollen data.
Sunny intervals.
Ex UV
No pollution data.
No pollen data.
Sunny.
Ex UV
No pollution data.
No pollen data.
Sunny intervals changing to partly cloudy by nighttime.
Ex UV
No pollution data.
No pollen data.
7 day forecast for San Juan
Today (21 October 2025)
Time |
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather symbols | |||||||||||||||||||||||
Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
Temperature (°C) |
22°
|
21°
|
20°
|
19°
|
18°
|
17°
|
17°
|
18°
|
20°
|
22°
|
25°
|
27°
|
29°
|
31°
|
33°
|
34°
|
34°
|
33°
|
32°
|
30°
|
29°
|
26°
|
26°
|
Feels like temperature (°C) |
23°
|
22°
|
21°
|
20°
|
18°
|
17°
|
17°
|
17°
|
19°
|
22°
|
25°
|
27°
|
28°
|
30°
|
32°
|
33°
|
33°
|
32°
|
29°
|
27°
|
27°
|
27°
|
26°
|
Wind direction and speed (mph) |
N
3
|
NNW
4
|
NNW
3
|
NNW
3
|
NW
3
|
NW
3
|
NW
3
|
NW
3
|
NW
3
|
NW
2
|
NE
2
|
E
3
|
ESE
4
|
ESE
4
|
ESE
6
|
SE
6
|
SE
7
|
SSE
9
|
S
11
|
S
10
|
SSW
6
|
WSW
4
|
NW
4
|
Wind gust (mph) |
10
|
11
|
9
|
8
|
8
|
10
|
10
|
10
|
10
|
8
|
8
|
13
|
15
|
17
|
21
|
21
|
22
|
23
|
24
|
19
|
12
|
9
|
9
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
63%
|
62%
|
67%
|
73%
|
74%
|
74%
|
74%
|
57%
|
41%
|
40%
|
39%
|
36%
|
21%
|
20%
|
20%
|
20%
|
20%
|
20%
|
21%
|
21%
|
28%
|
49%
|
53%
|
UV | - | - | - | - | - | 1 | 1 | 1 | 3 | 6 | 9 | 11 | 11 | 10 | 8 | 5 | 2 | 1 | 1 | - | - | - | - |
Wednesday (22 October 2025)
Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather symbols | ||||||||||||||||||||||||
Chance of precipitation |
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
Temperature (°C) |
24°
|
23°
|
22°
|
22°
|
21°
|
20°
|
18°
|
18°
|
19°
|
20°
|
21°
|
22°
|
23°
|
25°
|
26°
|
27°
|
28°
|
29°
|
29°
|
28°
|
26°
|
25°
|
24°
|
23°
|
Feels like temperature (°C) |
25°
|
24°
|
22°
|
20°
|
19°
|
18°
|
17°
|
17°
|
18°
|
18°
|
19°
|
20°
|
22°
|
23°
|
25°
|
26°
|
26°
|
27°
|
27°
|
26°
|
25°
|
24°
|
23°
|
23°
|
Wind direction and speed (mph) |
NW
4
|
WNW
4
|
WSW
4
|
S
7
|
SSE
7
|
SSE
6
|
SSE
6
|
SSE
5
|
S
6
|
SSE
7
|
SSE
6
|
SSE
7
|
SSE
7
|
SSE
8
|
SSE
9
|
SSE
9
|
SSE
9
|
SSE
9
|
SSE
10
|
S
10
|
S
9
|
S
7
|
S
5
|
SSW
4
|
Wind gust (mph) |
10
|
12
|
17
|
18
|
15
|
14
|
13
|
14
|
17
|
19
|
19
|
21
|
22
|
24
|
24
|
25
|
25
|
24
|
24
|
23
|
19
|
15
|
10
|
8
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
53%
|
56%
|
55%
|
46%
|
49%
|
57%
|
59%
|
60%
|
46%
|
46%
|
44%
|
42%
|
41%
|
40%
|
39%
|
36%
|
31%
|
29%
|
30%
|
33%
|
40%
|
41%
|
47%
|
56%
|
UV | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 6 | 9 | 11 | 11 | 10 | 8 | 5 | 3 | 1 | 1 | - | - | - | - |
Thursday (23 October 2025)
Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather symbols | ||||||||||||||||||||||||
Chance of precipitation |
<5%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
20%
|
30%
|
20%
|
Temperature (°C) |
23°
|
22°
|
21°
|
19°
|
18°
|
17°
|
16°
|
16°
|
19°
|
22°
|
24°
|
27°
|
30°
|
32°
|
34°
|
35°
|
36°
|
36°
|
36°
|
35°
|
29°
|
28°
|
28°
|
27°
|
Feels like temperature (°C) |
23°
|
22°
|
21°
|
20°
|
19°
|
18°
|
17°
|
16°
|
19°
|
22°
|
24°
|
27°
|
29°
|
30°
|
32°
|
33°
|
34°
|
34°
|
34°
|
34°
|
28°
|
28°
|
28°
|
27°
|
Wind direction and speed (mph) |
SW
3
|
SSW
4
|
SW
3
|
SW
3
|
WSW
3
|
W
3
|
WNW
3
|
WNW
3
|
NW
3
|
NW
2
|
N
2
|
NNE
3
|
NNE
5
|
NNE
8
|
NNE
9
|
NNE
10
|
NE
10
|
NNE
9
|
NNE
8
|
NNW
6
|
WNW
5
|
WSW
5
|
SSE
6
|
SSW
4
|
Wind gust (mph) |
7
|
8
|
8
|
7
|
6
|
6
|
7
|
8
|
8
|
8
|
8
|
14
|
21
|
27
|
30
|
30
|
30
|
25
|
20
|
14
|
11
|
15
|
14
|
13
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
61%
|
63%
|
63%
|
69%
|
73%
|
76%
|
78%
|
77%
|
56%
|
45%
|
40%
|
38%
|
32%
|
21%
|
20%
|
20%
|
19%
|
18%
|
16%
|
22%
|
25%
|
37%
|
40%
|
53%
|
UV | - | - | - | - | - | - | 1 | 1 | 1 | 4 | 6 | 9 | 11 | 11 | 10 | 8 | 5 | 3 | 1 | 1 | - | - | - | - |
Friday (24 October 2025)
Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather symbols | ||||||||||||||||||||||||
Chance of precipitation |
40%
|
20%
|
30%
|
20%
|
10%
|
10%
|
10%
|
10%
|
30%
|
20%
|
20%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
Temperature (°C) |
26°
|
24°
|
23°
|
22°
|
21°
|
21°
|
20°
|
20°
|
20°
|
20°
|
21°
|
22°
|
23°
|
24°
|
25°
|
26°
|
27°
|
26°
|
26°
|
25°
|
24°
|
23°
|
22°
|
21°
|
Feels like temperature (°C) |
26°
|
24°
|
23°
|
22°
|
21°
|
21°
|
20°
|
20°
|
20°
|
19°
|
20°
|
20°
|
21°
|
22°
|
23°
|
24°
|
24°
|
24°
|
24°
|
23°
|
21°
|
20°
|
20°
|
19°
|
Wind direction and speed (mph) |
WSW
5
|
SW
5
|
SW
5
|
SSW
5
|
S
7
|
S
6
|
S
6
|
S
6
|
S
6
|
S
8
|
S
8
|
SSE
10
|
SSE
10
|
SSE
11
|
SSE
11
|
SSE
12
|
SSE
12
|
SSE
12
|
SSE
11
|
S
10
|
S
10
|
S
10
|
S
9
|
S
8
|
Wind gust (mph) |
13
|
13
|
14
|
15
|
17
|
16
|
14
|
15
|
19
|
21
|
24
|
26
|
28
|
30
|
31
|
31
|
30
|
29
|
26
|
24
|
22
|
22
|
20
|
17
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
49%
|
55%
|
57%
|
61%
|
66%
|
71%
|
73%
|
74%
|
68%
|
67%
|
65%
|
62%
|
55%
|
48%
|
42%
|
40%
|
37%
|
38%
|
38%
|
39%
|
41%
|
43%
|
47%
|
54%
|
UV | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 6 | 8 | 10 | 11 | 10 | 8 | 4 | 2 | 1 | 1 | - | - | - | - |
Saturday (25 October 2025)
Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather symbols | ||||||||||||||||||||||
Chance of precipitation |
10%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
Temperature (°C) |
19°
|
19°
|
18°
|
17°
|
16°
|
16°
|
15°
|
15°
|
16°
|
17°
|
18°
|
19°
|
20°
|
21°
|
22°
|
23°
|
24°
|
24°
|
24°
|
23°
|
21°
|
20°
|
Feels like temperature (°C) |
18°
|
18°
|
17°
|
16°
|
16°
|
15°
|
14°
|
14°
|
14°
|
15°
|
15°
|
16°
|
17°
|
18°
|
20°
|
21°
|
21°
|
22°
|
22°
|
21°
|
18°
|
18°
|
Wind direction and speed (mph) |
S
7
|
S
7
|
S
6
|
S
6
|
S
6
|
S
6
|
S
6
|
S
6
|
S
8
|
S
9
|
S
10
|
SSE
10
|
SSE
9
|
SSE
9
|
SE
8
|
SE
7
|
SE
7
|
SE
8
|
SSE
8
|
SSE
8
|
SSE
8
|
SSE
6
|
Wind gust (mph) |
16
|
16
|
13
|
13
|
13
|
15
|
16
|
19
|
22
|
24
|
26
|
25
|
25
|
25
|
25
|
23
|
23
|
22
|
20
|
20
|
16
|
14
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
59%
|
64%
|
66%
|
67%
|
71%
|
67%
|
68%
|
67%
|
56%
|
52%
|
45%
|
43%
|
40%
|
36%
|
31%
|
28%
|
24%
|
24%
|
24%
|
24%
|
35%
|
42%
|
UV | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 6 | 9 | 11 | 11 | 11 | 8 | 5 | 3 | 1 | 1 | - | - |
Sunday (26 October 2025)
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
---|---|---|---|---|---|---|---|---|
Weather symbols | ||||||||
Chance of precipitation |
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
Temperature (°C) |
16°
|
14°
|
12°
|
16°
|
21°
|
24°
|
24°
|
20°
|
Feels like temperature (°C) |
16°
|
14°
|
12°
|
15°
|
18°
|
21°
|
20°
|
16°
|
Wind direction and speed (mph) |
SW
4
|
W
3
|
W
4
|
WSW
4
|
ESE
8
|
ESE
10
|
SSE
12
|
SSE
10
|
Wind gust (mph) |
8
|
9
|
12
|
16
|
30
|
32
|
31
|
27
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
58%
|
68%
|
73%
|
44%
|
30%
|
23%
|
21%
|
35%
|
UV | - | - | 1 | 4 | 11 | 8 | 1 | - |
Monday (27 October 2025)
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
---|---|---|---|---|---|---|---|---|
Weather symbols | ||||||||
Chance of precipitation |
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
Temperature (°C) |
16°
|
13°
|
10°
|
11°
|
14°
|
17°
|
17°
|
14°
|
Feels like temperature (°C) |
15°
|
12°
|
9°
|
9°
|
12°
|
14°
|
14°
|
12°
|
Wind direction and speed (mph) |
SSW
8
|
S
6
|
S
6
|
SSE
8
|
SSE
8
|
SSE
10
|
SSE
12
|
S
9
|
Wind gust (mph) |
21
|
16
|
20
|
25
|
29
|
31
|
30
|
21
|
Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
Humidity |
47%
|
50%
|
61%
|
44%
|
35%
|
26%
|
29%
|
38%
|
UV | - | - | 1 | 4 | 11 | 8 | 1 | - |
Tooltip header
UK video forecast
weather map
Forecast
Forecast for 01:00 (UTC-3), Tue
Updated 01:25 (UTC+1) on Tue 21 Oct 2025
Loading map...
More from the Met Office
-
CAUSES OF CLIMATE CHANGE
Causes of climate change
Read -
WEATHER
July flooding 2012
Read -
CLIMATE
The future change information behind the 'Human dynamics of climate change' poster
Read -
WEATHER
July 2013 heat wave
Read -
MET OFFICE FOR SCHOOLS
Weather Observations Website (WOW)
Read -
SEASONAL ADVICE
5 tips for staying safe in heavy rain
Read