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Weather in Southampton for December 2025

Your guide to Southampton weather in December - trends and predictions

    Temperatures

  • So far, December 2025 in Southampton is slightly warmer than the historical average by 0.8 °C.

  • Expect cooler weather in the next days in Southampton with the forecast suggesting a temperature of 8.4 °C, lower than the historical average.

  • In general, the average temperature in Southampton at the beginning of December is 10 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 9.1 °C by the end of December.

    • Rain 🌧️

  • Southampton experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 104.3 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
10
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/6°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
86 %
Avg humidity

Southampton Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
10°
2
Sunny
9°
3
Light rain shower
9°
4
Patchy rain possible
10°
5
Light drizzle
10°
6
Patchy rain possible
10°
7
Moderate rain
12°
8
Patchy rain possible
10°
9
Light rain shower
11°
10
Patchy rain possible
11°
11
Mist
10°
12
Light rain shower
10°
13
Light drizzle
9°
14
Partly cloudy
11°
15
Patchy rain possible
11°
16
Partly cloudy
9°
17
Sunny
8°
18
Patchy rain possible
11°
19
Patchy rain possible
10°
20
Sunny
8°
21
Moderate rain
6°
22
Cloudy
7°
23
Overcast
8°
24
Sunny
7°
25
Patchy rain possible
10°
26
Sunny
6°
27
Sunny
6°
28
Heavy rain at times
11°
29
Cloudy
9°
30
Patchy rain possible
11°
31
Moderate or heavy rain shower
11°

Temperatures trend during December in Southampton

See the weather trend as well as the moving average line

December weather in Southampton day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 3.1 mm 2
2 Dec. Sunny
Sunny
 9° /3° 1.5 mm 3
3 Dec. Light rain shower
Light rain shower
 9° /3° 9.8 mm 2
4 Dec. Patchy rain possible
Patchy rain possible
 10° /4° 7.2 mm 2
5 Dec. Light drizzle
Light drizzle
 10° /6° 5.7 mm 3
6 Dec. Patchy rain possible
Patchy rain possible
 10° /4° 0.8 mm 3
7 Dec. Moderate rain
Moderate rain
 12° /6° 10.4 mm 3
8 Dec. Patchy rain possible
Patchy rain possible
 10° /8° 2.7 mm 2
9 Dec. Light rain shower
Light rain shower
 11° /8° 7.6 mm 3
10 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 2.3 mm 3
11 Dec. Mist
Mist
 10° /6° 0.1 mm 3
12 Dec. Light rain shower
Light rain shower
 10° /6° 2.9 mm 3
13 Dec. Light drizzle
Light drizzle
 9° /4° 0.6 mm 2
14 Dec. Partly cloudy
Partly cloudy
 11° /7° 0 mm 0.1
15 Dec. Patchy rain possible
Patchy rain possible
 11° /10° 0.5 mm 0.1
16 Dec. Partly cloudy
Partly cloudy
 9° /4° 0.1 mm 0
17 Dec. Sunny
Sunny
 8° /3° 0 mm 0.1
18 Dec. Patchy rain possible
Patchy rain possible
 11° /7° 1.1 mm 0.1
19 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 0.1 mm 2
20 Dec. Sunny
Sunny
 8° /4° 0 mm 3
21 Dec. Moderate rain
Moderate rain
 6° /5° 5.8 mm 2
22 Dec. Cloudy
Cloudy
 7° /4° 0 mm 2
23 Dec. Overcast
Overcast
 8° /4° 0 mm 2
24 Dec. Sunny
Sunny
 7° /4° 0 mm 2
25 Dec. Patchy rain possible
Patchy rain possible
 10° /5° 0.4 mm 2
26 Dec. Sunny
Sunny
 6° /2° 0 mm 2
27 Dec. Sunny
Sunny
 6° /1° 0 mm 2
28 Dec. Heavy rain at times
Heavy rain at times
 11° /7° 3.5 mm 3
29 Dec. Cloudy
Cloudy
 9° /5° 0.4 mm 2
30 Dec. Patchy rain possible
Patchy rain possible
 11° /5° 9 mm 3
31 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /8° 10 mm 3
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Important Notice
Our weather forecast for Southampton in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Southampton forecast closer to your planned date for the most up-to-date weather information.
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Southampton in December - FAQ

What are the expected maximum and minimum temperatures in Southampton during December?
During December, expect a variety of temperatures with highs around 10° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Southampton during December?
Significant rainfall exceeding 104.3 mm is expected in Southampton during December, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Southampton during December?
The average wind speed in Southampton during December is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Southampton

Explore the daily rainfall trends and prepare for Southamptons December weather 💧
Typically, Southampton has 21 rainy days in December with a total of 104.3 mm of rainfall.

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Get accurate weather forecasts for Southampton, located at latitude 50.904 and longitude -1.404. Stay updated with localized weather information tailored for Southampton.

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