Weather tomorrow: Southampton

Forecast for tomorrow, 28 September: overcast and showers. The daily air temperature range is 13 to 15 °C. Chance of precipitation tomorrow according to the daily forecast: 90%. Forecast precipitation amount: 6 mm. Wind from the north at 5.3 m/s.

monday 28 september

Overcast and showers

Overcast and showers, Precipitation probability 90%, Sunrise 06:53, Sunset 18:47, 28.09.2026

+15°

+13°

Sunset 18:47

G/m activity 2

Precipitation probability 90%

Precipitation 6.0 mm

Wind 5.3 m/s

Pressure 999.9 hPa

Index UV 0

Humidity 94%

Sunrise 06:53

Moon Waning Gibbous

Sunrise 06:53

Sunset 18:47

G/m activity 2

Moon Waning Gibbous

Overcast and light rain
night
+15°
Overcast and light rain
morning
+14°
Overcast and showers
day
+14°
Overcast and showers
evening
+14°
Time
Description
Temperature
Precipitation probability
Precipitation
Wind

00:00

Overcast and light rain

15°

77 %
1.1 mm

N

3.6 m/s

01:00

Overcast and light rain

15°

79 %
1.3 mm

N

3.6 m/s

02:00

Overcast and light rain

15°

79 %
1.2 mm

N

3.6 m/s

03:00

Overcast and light rain

15°

74 %
0.8 mm

N

3.9 m/s

04:00

Overcast and light rain

15°

68 %
0.6 mm

N

3.9 m/s

05:00

Overcast and light rain

15°

67 %
0.5 mm

NW

4.2 m/s

06:00

Overcast and light rain

14°

72 %
0.8 mm

NW

4.2 m/s

07:00

Overcast and light rain

14°

54 %
0.3 mm

NW

4.4 m/s

08:00

Overcast and showers

14°

44 %
0.1 mm

NW

4.2 m/s

09:00

Overcast and showers

14°

37 %
-

NW

4.2 m/s

10:00

Overcast and showers

14°

40 %
0.1 mm

NW

3.9 m/s

11:00

Overcast and showers

14°

46 %
0.1 mm

NW

3.9 m/s

12:00

Overcast and showers

14°

46 %
0.1 mm

NW

3.9 m/s

13:00

Overcast and showers

14°

44 %
0.1 mm

NW

3.9 m/s

14:00

Overcast and light rain

14°

48 %
0.2 mm

NW

3.9 m/s

15:00

Overcast and showers

14°

46 %
0.1 mm

NW

3.9 m/s

16:00

Overcast and showers

14°

47 %
0.1 mm

NW

4.2 m/s

17:00

Overcast and showers

14°

36 %
-

NW

3.9 m/s

18:00

Overcast and showers

14°

34 %
-

NW

3.9 m/s

19:00

Overcast and showers

14°

34 %
-

NW

3.6 m/s

20:00

Overcast

14°

33 %
-

NW

3.6 m/s

21:00

Overcast

13°

33 %
-

NW

3.6 m/s

22:00

Fog

14°

38 %
-

N

3.3 m/s

23:00

Overcast

13°

32 %
-

N

3.3 m/s

What is the atmospheric pressure in Southampton tomorrow?

Pressure adjusted for location elevation. Location elevation: 80 m relative to sea level

Forecast for 28.09.2026 · Local time

Pressure: 994.6–1003.9 hPa.

Minimum: 994.6 hPa00:00

Maximum: 1003.9 hPa21:00–23:00

Largest change over 3 hours: +2.7 hPa · 07:00–10:00
First of 5 intervals with the same change magnitude shown.

hPa · Change over the previous 3 hours

994.6 00:00 —
995.9 01:00 —
995.9 02:00 —
995.9 03:00 +1.3
995.9 04:00 0
995.9 05:00 0
995.9 06:00 0
995.9 07:00 0
997.3 08:00 +1.3
997.3 09:00 +1.3
998.6 10:00 +2.7
998.6 11:00 +1.3
999.9 12:00 +2.7
999.9 13:00 +1.3
999.9 14:00 +1.3
999.9 15:00 0
999.9 16:00 0
999.9 17:00 0
1001.3 18:00 +1.3
1001.3 19:00 +1.3
1002.6 20:00 +2.7
1003.9 21:00 +2.7
1003.9 22:00 +2.7
1003.9 23:00 +1.3

Colours show pressure relative to this day’s range

Lower · 994.6 Scale midpoint · 999.3 Higher · 1003.9 Largest change over 3 hours

What is the chance of precipitation in Southampton tomorrow?

Chance of precipitation tomorrow according to the daily forecast: 90%.

Precipitation for tomorrow

Hourly precipitation forecast
00:00 Amount of precipitation in millimeters (mm): 1.1 mm Probability of precipitation in percent (%): 77%
01:00 Amount of precipitation in millimeters (mm): 1.3 mm Probability of precipitation in percent (%): 79%
02:00 Amount of precipitation in millimeters (mm): 1.2 mm Probability of precipitation in percent (%): 79%
03:00 Amount of precipitation in millimeters (mm): 0.8 mm Probability of precipitation in percent (%): 74%
04:00 Amount of precipitation in millimeters (mm): 0.6 mm Probability of precipitation in percent (%): 68%
05:00 Amount of precipitation in millimeters (mm): 0.5 mm Probability of precipitation in percent (%): 67%
06:00 Amount of precipitation in millimeters (mm): 0.8 mm Probability of precipitation in percent (%): 72%
07:00 Amount of precipitation in millimeters (mm): 0.3 mm Probability of precipitation in percent (%): 54%
08:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 44%
09:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 37%
10:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 40%
11:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 46%
12:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 46%
13:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 44%
14:00 Amount of precipitation in millimeters (mm): 0.2 mm Probability of precipitation in percent (%): 48%
15:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 46%
16:00 Amount of precipitation in millimeters (mm): 0.1 mm Probability of precipitation in percent (%): 47%
17:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 36%
18:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 34%
19:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 34%
20:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 33%
21:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 33%
22:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 38%
23:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 32%

Southampton weather tomorrow: morning, afternoon and evening

Morning: overcast and light rain, +14 °C. Afternoon: overcast and showers, +14 °C. Evening: overcast and showers, +14 °C.

According to the hourly forecast, tomorrow's highest temperature is expected from 00:00 to 05:00, at around +15 °C. Times are local.

Tomorrow's strongest winds are expected at 07:00 (from the northwest). The lightest winds are expected from 22:00 to 23:00 (from the north). Times are local.

Temperature and wind for tomorrow

+15° +15° +14° +14° +14° +14° +14° +13° 3.6 m/s 3.9 m/s 4.2 m/s 4.2 m/s 3.9 m/s 3.9 m/s 3.9 m/s 3.6 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 Southampton 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

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