Weather for tomorrow

San Juan

Weather tomorrow: San Juan

Forecast for tomorrow, 28 September: overcast. The daily air temperature range is 13 to 19 °C. Chance of precipitation tomorrow according to the daily forecast: 17%. Forecast precipitation amount: 0.1 mm. Wind from the south at 9.2 m/s.

monday 28 september

Overcast

+19°

+13°

Sunset 19:35

G/m activity 2

Precipitation probability 17%

Precipitation 0.1 mm

Wind 9.2 m/s

Pressure 934.6 hPa

Index UV 7

Humidity 62%

Sunrise 07:16

Moon Waning Gibbous

Sunrise 07:16

Sunset 19:35

G/m activity 2

Moon Waning Gibbous

night

+19°

morning

+14°

day

+18°

evening

+20°

00:00

19°

3 %

-

S

8.1 m/s

01:00

18°

4 %

-

S

8.3 m/s

02:00

17°

5 %

-

S

8.1 m/s

03:00

16°

7 %

-

S

7.8 m/s

04:00

15°

8 %

-

S

6.9 m/s

05:00

15°

9 %

-

S

6.7 m/s

06:00

14°

12 %

-

S

6.4 m/s

07:00

14°

13 %

-

S

5.8 m/s

08:00

14°

13 %

-

S

5.6 m/s

09:00

15°

18 %

-

S

7.2 m/s

10:00

17°

12 %

-

S

7.8 m/s

11:00

18°

9 %

-

SE

7.8 m/s

12:00

18°

10 %

-

SE

7.8 m/s

13:00

18°

8 %

-

SE

7.2 m/s

14:00

19°

10 %

-

SE

7.8 m/s

15:00

19°

9 %

-

S

8.3 m/s

16:00

19°

4 %

-

S

6.9 m/s

17:00

19°

2 %

-

S

6.7 m/s

18:00

20°

1 %

-

S

6.9 m/s

19:00

19°

1 %

-

S

7.5 m/s

20:00

18°

2 %

-

S

7.2 m/s

21:00

17°

2 %

-

S

6.9 m/s

22:00

16°

2 %

-

S

5.8 m/s

23:00

15°

3 %

-

S

6.7 m/s

What is the atmospheric pressure in San Juan tomorrow?

Pressure adjusted for location elevation. Location elevation: 650 m relative to sea level

Forecast for 28.09.2026 · Local time

Pressure: 933.3–937.3 hPa.

Minimum: 933.3 hPa17:00–20:00

Maximum: 937.3 hPa09:00–11:00

Largest change over 3 hours: −2.7 hPa · 11:00–14:00
First of 2 intervals with the same change magnitude shown.

hPa · Change over the previous 3 hours

935.9 00:00 —

935.9 01:00 —

935.9 02:00 —

934.6 03:00 −1.3

934.6 04:00 −1.3

934.6 05:00 −1.3

935.9 06:00 +1.3

935.9 07:00 +1.3

935.9 08:00 +1.3

937.3 09:00 +1.3

937.3 10:00 +1.3

937.3 11:00 +1.3

935.9 12:00 −1.3

935.9 13:00 −1.3

934.6 14:00 −2.7

934.6 15:00 −1.3

934.6 16:00 −1.3

933.3 17:00 −1.3

933.3 18:00 −1.3

933.3 19:00 −1.3

933.3 20:00 0

934.6 21:00 +1.3

934.6 22:00 +1.3

935.9 23:00 +2.7

Colours show pressure relative to this day’s range

Lower · 933.3 Scale midpoint · 935.3 Higher · 937.3 Largest change over 3 hours

What is the chance of precipitation in San Juan tomorrow?

Chance of precipitation tomorrow according to the daily forecast: 17%.

Precipitation for tomorrow

Hourly precipitation forecast
00:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 3%
01:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 4%
02:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 5%
03:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 7%
04:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 8%
05:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 9%
06:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 12%
07:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 13%
08:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 13%
09:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 18%
10:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 12%
11:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 9%
12:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 10%
13:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 8%
14:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 10%
15:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 9%
16:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 4%
17:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 2%
18:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 1%
19:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 1%
20:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 2%
21:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 2%
22:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 2%
23:00	Amount of precipitation in millimeters (mm): 0 mm	Probability of precipitation in percent (%): 3%

San Juan weather tomorrow: morning, afternoon and evening

Morning: cloudy, +14 °C. Afternoon: overcast and showers, +18 °C. Evening: clear, +20 °C.

According to the hourly forecast, tomorrow's highest temperature is expected at 18:00, at around +20 °C. Times are local.

Tomorrow's strongest winds are expected at 01:00 (from the south); at 15:00 (from the south). The lightest winds are expected at 08:00 (from the south). Times are local.

Temperature and wind for tomorrow

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00

- Wind direction and speed, m/s

- Temperature, °C

What geomagnetic activity is forecast for San Juan tomorrow?

The highest forecast Kp index for tomorrow is 2.

Magnetic storm tomorrow

00:00 2

03:00 2

06:00 2

09:00 2

12:00 1

15:00 1

18:00 2

21:00 2

Nearest locations

Determine location

Mendoza

Santiago

La Rioja

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