Weather for tomorrow

San Jose

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Weather tomorrow: San Jose

Forecast for tomorrow, 28 September: overcast and light rain. The daily air temperature range is 16 to 23 °C. Chance of precipitation tomorrow according to the daily forecast: 92%. Forecast precipitation amount: 14.1 mm. Wind from the northeast at 1.7 m/s.

monday 28 september

Overcast and light rain

Overcast and light rain, Precipitation probability 92%, Sunrise 05:25, Sunset 17:29, 28.09.2026

+23°

+16°

Sunset 17:29

G/m activity 2

Precipitation probability 92%

Precipitation 14.1 mm

Wind 1.7 m/s

Pressure 886.6 hPa

Index UV 12

Humidity 92%

Sunrise 05:25

Moon Waning Gibbous

Sunrise 05:25

Sunset 17:29

G/m activity 2

Moon Waning Gibbous

Fog
night
+16°
Fog
morning
+16°
Overcast and light rain
day
+21°
Overcast and light rain
evening
+17°
Time
Description
Temperature
Precipitation probability
Precipitation
Wind

00:00

Fog

16°

39 %
-

E

1.1 m/s

01:00

Fog

16°

39 %
-

NE

0.8 m/s

02:00

Fog

16°

38 %
-

E

1.1 m/s

03:00

Fog

16°

38 %
-

E

1.1 m/s

04:00

Fog

16°

36 %
-

E

0.8 m/s

05:00

Fog

16°

30 %
-

E

0.8 m/s

06:00

Fog

16°

28 %
-

E

0.8 m/s

07:00

Overcast

18°

29 %
-

NE

1.1 m/s

08:00

Cloudy

20°

23 %
-

NE

1.1 m/s

09:00

Overcast and showers

21°

14 %
-

N

1.1 m/s

10:00

Overcast and light rain

23°

36 %
0.5 mm

N

1.4 m/s

11:00

Overcast and light rain

23°

36 %
0.2 mm

N

1.1 m/s

12:00

Overcast and light rain

21°

70 %
1.2 mm

N

1.1 m/s

13:00

Overcast and light rain

20°

76 %
1.6 mm

N

1.7 m/s

14:00

Overcast and light rain

19°

78 %
1.4 mm

NE

1.7 m/s

15:00

Overcast and light rain

18°

79 %
1.3 mm

NE

1.4 m/s

16:00

Overcast and light rain

18°

69 %
0.6 mm

NE

1.4 m/s

17:00

Overcast and light rain

17°

77 %
1 mm

NE

1.4 m/s

18:00

Overcast and light rain

17°

63 %
0.4 mm

NE

1.1 m/s

19:00

Overcast and light rain

17°

58 %
0.3 mm

NE

1.1 m/s

20:00

Overcast and light rain

17°

72 %
0.7 mm

NE

1.1 m/s

21:00

Overcast and light rain

17°

74 %
0.8 mm

E

1.4 m/s

22:00

Overcast and light rain

17°

53 %
0.2 mm

E

1.4 m/s

23:00

Fog

17°

44 %
-

NE

1.4 m/s

What is the atmospheric pressure in San Jose tomorrow?

Pressure adjusted for location elevation. Location elevation: 1147 m relative to sea level

Forecast for 28.09.2026 · Local time

Pressure: 883.9–889.3 hPa.

Minimum: 883.9 hPa15:00

Maximum: 889.3 hPa09:00–10:00

Largest change over 3 hours: +2.7 hPa · 06:00–09:00
First of 8 intervals with the same change magnitude shown.

hPa · Change over the previous 3 hours

886.6 00:00 —
886.6 01:00 —
885.3 02:00 —
885.3 03:00 −1.3
885.3 04:00 −1.3
886.6 05:00 +1.3
886.6 06:00 +1.3
886.6 07:00 +1.3
887.9 08:00 +1.3
889.3 09:00 +2.7
889.3 10:00 +2.7
887.9 11:00 0
886.6 12:00 −2.7
886.6 13:00 −2.7
885.3 14:00 −2.7
883.9 15:00 −2.7
885.3 16:00 −1.3
885.3 17:00 0
885.3 18:00 +1.3
885.3 19:00 0
886.6 20:00 +1.3
887.9 21:00 +2.7
887.9 22:00 +2.7
886.6 23:00 0

Colours show pressure relative to this day’s range

Lower · 883.9 Scale midpoint · 886.6 Higher · 889.3 Largest change over 3 hours

What is the chance of precipitation in San Jose tomorrow?

Chance of precipitation tomorrow according to the daily forecast: 92%.

Precipitation for tomorrow

Hourly precipitation forecast
00:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 39%
01:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 39%
02:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 38%
03:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 38%
04:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 36%
05:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 30%
06:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 28%
07:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 29%
08:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 23%
09:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 14%
10:00 Amount of precipitation in millimeters (mm): 0.5 mm Probability of precipitation in percent (%): 36%
11:00 Amount of precipitation in millimeters (mm): 0.2 mm Probability of precipitation in percent (%): 36%
12:00 Amount of precipitation in millimeters (mm): 1.2 mm Probability of precipitation in percent (%): 70%
13:00 Amount of precipitation in millimeters (mm): 1.6 mm Probability of precipitation in percent (%): 76%
14:00 Amount of precipitation in millimeters (mm): 1.4 mm Probability of precipitation in percent (%): 78%
15:00 Amount of precipitation in millimeters (mm): 1.3 mm Probability of precipitation in percent (%): 79%
16:00 Amount of precipitation in millimeters (mm): 0.6 mm Probability of precipitation in percent (%): 69%
17:00 Amount of precipitation in millimeters (mm): 1 mm Probability of precipitation in percent (%): 77%
18:00 Amount of precipitation in millimeters (mm): 0.4 mm Probability of precipitation in percent (%): 63%
19:00 Amount of precipitation in millimeters (mm): 0.3 mm Probability of precipitation in percent (%): 58%
20:00 Amount of precipitation in millimeters (mm): 0.7 mm Probability of precipitation in percent (%): 72%
21:00 Amount of precipitation in millimeters (mm): 0.8 mm Probability of precipitation in percent (%): 74%
22:00 Amount of precipitation in millimeters (mm): 0.2 mm Probability of precipitation in percent (%): 53%
23:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 44%

San Jose weather tomorrow: morning, afternoon and evening

Morning: fog, +16 °C. Afternoon: overcast and light rain, +21 °C. Evening: overcast and light rain, +17 °C.

According to the hourly forecast, tomorrow's highest temperature is expected from 10:00 to 11:00, at around +23 °C. Times are local.

Tomorrow's strongest winds are expected at 13:00 (from the north); at 14:00 (from the northeast). The lightest winds are expected at 01:00 (from the northeast); from 04:00 to 06:00 (from the east). Times are local.

Temperature and wind for tomorrow

+16° +16° +16° +21° +21° +18° +17° +17° 1.1 m/s 1.1 m/s 0.8 m/s 1.1 m/s 1.1 m/s 1.4 m/s 1.1 m/s 1.4 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 Jose tomorrow?

The highest forecast Kp index for tomorrow is 2.

Magnetic storm tomorrow

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

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