San Juan (Argentina) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 11° Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 6° Celsius; -
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 4° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 4° Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 4° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 4° Celsius;
-
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 5° Celsius;
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 5° Celsius;
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: -1° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: -1° Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: -2° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: -2° Celsius;
Sunny changing to cloudy by nighttime.
Sunrise:
Sunset:
H UV
No pollution data.
No pollen data.
7 day forecast for San Juan
Today (17 August 2025)
| Time |
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%
|
| Temperature |
12°
|
14°
|
16°
|
17°
|
18°
|
18°
|
18°
|
16°
|
15°
|
14°
|
13°
|
13°
|
| Feels like temperature (°C) |
12°
|
14°
|
15°
|
16°
|
17°
|
17°
|
17°
|
16°
|
15°
|
14°
|
13°
|
13°
|
| Wind direction and speed |
NE
1
|
NNE
2
|
NNE
4
|
NNE
4
|
NNE
4
|
NNE
4
|
NW
3
|
W
3
|
S
3
|
S
3
|
S
3
|
SSE
2
|
| Wind gust (mph) |
9
|
14
|
15
|
15
|
15
|
12
|
10
|
8
|
8
|
8
|
6
|
5
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
55%
|
49%
|
40%
|
40%
|
39%
|
39%
|
39%
|
64%
|
69%
|
67%
|
72%
|
73%
|
| UV | 5 | 6 | 6 | 4 | 3 | 1 | 1 | 1 | - | - | - | - |
Monday (18 August 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
| Temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
12°
|
12°
|
13°
|
13°
|
14°
|
14°
|
15°
|
15°
|
16°
|
15°
|
15°
|
14°
|
13°
|
| Feels like temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
15°
|
14°
|
14°
|
13°
|
13°
|
| Wind direction and speed (mph) |
SSE
2
|
SSE
3
|
S
2
|
SSW
2
|
SW
3
|
WSW
2
|
WSW
2
|
E
1
|
E
1
|
SE
1
|
SSE
2
|
SSE
3
|
SSE
3
|
SSE
4
|
SSE
5
|
SSE
5
|
SSE
6
|
SSE
5
|
SSE
6
|
SSE
6
|
S
6
|
S
4
|
| Wind gust (mph) |
5
|
5
|
5
|
6
|
7
|
5
|
4
|
4
|
4
|
6
|
9
|
10
|
13
|
14
|
16
|
16
|
15
|
15
|
14
|
13
|
12
|
10
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
75%
|
74%
|
74%
|
74%
|
75%
|
78%
|
82%
|
82%
|
67%
|
63%
|
61%
|
59%
|
57%
|
57%
|
54%
|
54%
|
54%
|
54%
|
59%
|
66%
|
70%
|
| UV | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 4 | 5 | 3 | 2 | 1 | 1 | 1 | - | - |
Tuesday (19 August 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) |
12°
|
10°
|
7°
|
7°
|
14°
|
19°
|
19°
|
15°
|
| Feels like temperature (°C) |
12°
|
9°
|
6°
|
6°
|
13°
|
17°
|
17°
|
14°
|
| Wind direction and speed (mph) |
SW
3
|
NW
3
|
NW
3
|
NW
4
|
NW
3
|
SE
4
|
SE
6
|
S
5
|
| Wind gust (mph) |
7
|
8
|
10
|
11
|
14
|
16
|
14
|
12
|
| Visibility (description) |
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
81%
|
86%
|
92%
|
84%
|
51%
|
27%
|
22%
|
49%
|
| UV | - | - | - | 1 | 6 | 5 | 1 | - |
Wednesday (20 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
12°
|
9°
|
6°
|
7°
|
14°
|
19°
|
19°
|
13°
|
| Feels like temperature (°C) |
11°
|
8°
|
5°
|
6°
|
13°
|
16°
|
17°
|
13°
|
| Wind direction and speed (mph) |
SSW
5
|
WSW
3
|
NW
3
|
NW
3
|
NNE
3
|
NNE
9
|
N
7
|
NNW
2
|
| Wind gust (mph) |
10
|
8
|
10
|
10
|
24
|
25
|
17
|
7
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
57%
|
69%
|
74%
|
59%
|
40%
|
22%
|
20%
|
71%
|
| UV | - | - | - | 1 | 6 | 5 | 1 | - |
Thursday (21 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
10°
|
7°
|
5°
|
6°
|
16°
|
22°
|
23°
|
16°
|
| Feels like temperature (°C) |
10°
|
6°
|
4°
|
5°
|
14°
|
20°
|
21°
|
15°
|
| Wind direction and speed (mph) |
NNW
3
|
NNW
3
|
NNW
4
|
NW
4
|
N
5
|
N
5
|
W
5
|
WSW
4
|
| Wind gust (mph) |
8
|
10
|
10
|
15
|
19
|
19
|
15
|
10
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
64%
|
71%
|
76%
|
67%
|
34%
|
20%
|
20%
|
53%
|
| UV | - | - | - | 1 | 6 | 5 | 1 | - |
Friday (22 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
12°
|
9°
|
6°
|
9°
|
11°
|
14°
|
15°
|
11°
|
| Feels like temperature (°C) |
12°
|
8°
|
5°
|
7°
|
10°
|
12°
|
12°
|
9°
|
| Wind direction and speed (mph) |
NW
4
|
WNW
4
|
WNW
4
|
SSW
6
|
S
8
|
SSE
9
|
S
10
|
S
7
|
| Wind gust (mph) |
10
|
12
|
15
|
22
|
25
|
27
|
25
|
16
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
57%
|
64%
|
69%
|
50%
|
38%
|
25%
|
22%
|
41%
|
| UV | - | - | - | 1 | 5 | 5 | 1 | - |
Saturday (23 August 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
7°
|
4°
|
1°
|
3°
|
10°
|
14°
|
15°
|
8°
|
| Feels like temperature (°C) |
5°
|
2°
|
-1°
|
1°
|
9°
|
13°
|
13°
|
7°
|
| Wind direction and speed (mph) |
SW
5
|
SW
4
|
W
4
|
W
4
|
SSE
3
|
E
5
|
ENE
5
|
W
3
|
| Wind gust (mph) |
11
|
10
|
11
|
12
|
18
|
18
|
16
|
9
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
56%
|
65%
|
68%
|
53%
|
30%
|
21%
|
20%
|
57%
|
| UV | - | - | - | 1 | 6 | 5 | 1 | - |
Tooltip header
UK video forecast
weather map
Forecast
Forecast for 12:00 (UTC-3), Sun
Updated 13:25 (UTC+1) on Sun 17 Aug 2025
Loading map...
More from the Met Office
-
CAUSES OF CLIMATE CHANGE
Causes of climate change
Read -
MET OFFICE FOR SCHOOLS
Make a rainbow DIY activity
Read -
SEASONAL ADVICE
When is hay fever season in the UK?
Read -
WEATHER
What is the difference between mist, fog and haze?
Read -
WEATHER
Forecasting frost
Read -
SEASONAL ADVICE
4 tips for staying safe in ice
Read