Weather tomorrow: San Marcos

Forecast for tomorrow, 29 September: clear. The daily air temperature range is 19 to 24 °C. Chance of precipitation tomorrow according to the daily forecast: 4%. Forecast precipitation amount: 0 mm. Wind from the southwest at 4.7 m/s.

tuesday 29 september

Clear

Clear, Precipitation probability 4%, Sunrise 06:42, Sunset 18:36, 29.09.2026

+24°

+19°

Sunset 18:36

G/m activity 2

Precipitation probability 4%

Precipitation 0.0 mm

Wind 4.7 m/s

Pressure 985.3 hPa

Index UV 7

Humidity 61%

Sunrise 06:42

Moon Waning Gibbous

Sunrise 06:42

Sunset 18:36

G/m activity 2

Moon Waning Gibbous

Clear
night
+20°
Clear
morning
+19°
Clear
day
+24°
Clear
evening
+23°
Time
Description
Temperature
Precipitation probability
Precipitation
Wind

00:00

Clear

20°

4 %
-

S

1.7 m/s

01:00

Clear

20°

4 %
-

S

1.7 m/s

02:00

Clear

20°

5 %
-

SW

1.4 m/s

03:00

Clear

20°

5 %
-

W

1.1 m/s

04:00

Clear

19°

5 %
-

NE

0.6 m/s

05:00

Clear

19°

5 %
-

NE

1.1 m/s

06:00

Clear

19°

5 %
-

E

0.8 m/s

07:00

Clear

19°

5 %
-

NE

0.6 m/s

08:00

Clear

20°

4 %
-

E

0.3 m/s

09:00

Clear

21°

3 %
-

SW

0.3 m/s

10:00

Clear

22°

2 %
-

W

1.4 m/s

11:00

Clear

23°

2 %
-

W

2.5 m/s

12:00

Clear

24°

2 %
-

W

3.1 m/s

13:00

Clear

24°

2 %
-

W

4.4 m/s

14:00

Clear

23°

2 %
-

W

4.7 m/s

15:00

Clear

23°

2 %
-

W

4.4 m/s

16:00

Clear

23°

3 %
-

W

3.6 m/s

17:00

Clear

23°

3 %
-

W

2.5 m/s

18:00

Clear

23°

3 %
-

SW

1.7 m/s

19:00

Clear

22°

3 %
-

SW

1.4 m/s

20:00

Clear

22°

4 %
-

SW

1.4 m/s

21:00

Clear

22°

5 %
-

SW

1.9 m/s

22:00

Clear

21°

5 %
-

SW

1.7 m/s

23:00

Clear

21°

6 %
-

S

1.7 m/s

What is the atmospheric pressure in San Marcos tomorrow?

Pressure adjusted for location elevation. Location elevation: 177 m relative to sea level

Forecast for 29.09.2026 · Local time

Pressure: 983.9–987.9 hPa.

Minimum: 983.9 hPa04:00–06:00

Maximum: 987.9 hPa23:00

Largest change over 3 hours: −1.3 hPa · 01:00–04:00
First of 12 intervals with the same change magnitude shown.

hPa · Change over the previous 3 hours

985.3 00:00 —
985.3 01:00 —
985.3 02:00 —
985.3 03:00 0
983.9 04:00 −1.3
983.9 05:00 −1.3
983.9 06:00 −1.3
985.3 07:00 +1.3
985.3 08:00 +1.3
985.3 09:00 +1.3
986.6 10:00 +1.3
985.3 11:00 0
985.3 12:00 0
985.3 13:00 −1.3
985.3 14:00 0
985.3 15:00 0
985.3 16:00 0
985.3 17:00 0
985.3 18:00 0
985.3 19:00 0
986.6 20:00 +1.3
986.6 21:00 +1.3
986.6 22:00 +1.3
987.9 23:00 +1.3

Colours show pressure relative to this day’s range

Lower · 983.9 Scale midpoint · 985.9 Higher · 987.9 Largest change over 3 hours

What is the chance of precipitation in San Marcos tomorrow?

Chance of precipitation tomorrow according to the daily forecast: 4%.

Precipitation for tomorrow

Hourly precipitation forecast
00:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 4%
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 (%): 5%
04:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 5%
05:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 5%
06:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 5%
07:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 5%
08:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 4%
09:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 3%
10:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
11:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
12:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
13:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
14:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
15:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
16:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 3%
17:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 3%
18:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 3%
19:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 3%
20:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 4%
21:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 5%
22:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 5%
23:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 6%

San Marcos weather tomorrow: morning, afternoon and evening

Morning: clear, +19 °C. Afternoon: clear, +24 °C. Evening: clear, +23 °C.

According to the hourly forecast, tomorrow's highest temperature is expected from 12:00 to 13:00, at around +24 °C. Times are local.

Tomorrow's strongest winds are expected at 14:00 (from the west). The lightest winds are expected at 08:00 (from the east); at 09:00 (from the southwest). Times are local.

Temperature and wind for tomorrow

+20° +20° +19° +21° +24° +23° +23° +22° 1.7 m/s 1.1 m/s 0.8 m/s 0.3 m/s 3.1 m/s 4.4 m/s 1.7 m/s 1.9 m/s
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 Marcos tomorrow?

The highest forecast Kp index for tomorrow is 2.

Magnetic storm tomorrow

00:00 2
03:00 1
06:00 1
09:00 1
12:00 2
15:00 2
18:00 2
21:00 2

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