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Weather in Slough for December 2025

Your guide to Slough weather in December - trends and predictions

    Temperatures

  • So far, December 2025 in Slough is slightly warmer than the historical average by 1.1 °C.

  • Expect cooler weather in the next days in Slough with the forecast suggesting a temperature of 7.9 °C, lower than the historical average.

  • In general, the average temperature in Slough at the beginning of December is 9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 8.4 °C by the end of December.

    • Rain 🌧️

  • Slough in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 72.2 mm.

    • More

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

Average dry days
12
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
9°/5°
Temperatures
Average wind speed
27 km/h
Avg max wind
Average humidity
85 %
Avg humidity

Slough Weather December

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

Temperatures trend during December in Slough

See the weather trend as well as the moving average line

December weather in Slough day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Light drizzle
Light drizzle
 9° /5° 2.8 mm 2
2 Dec. Partly cloudy
Partly cloudy
 8° /2° 0.7 mm 2
3 Dec. Light rain shower
Light rain shower
 7° /1° 2.7 mm 2
4 Dec. Light rain shower
Light rain shower
 9° /3° 5.4 mm 2
5 Dec. Patchy rain possible
Patchy rain possible
 10° /4° 4.5 mm 3
6 Dec. Overcast
Overcast
 8° /5° 0.6 mm 3
7 Dec. Light rain
Light rain
 12° /5° 5.3 mm 3
8 Dec. Patchy rain possible
Patchy rain possible
 9° /6° 2.1 mm 2
9 Dec. Light rain shower
Light rain shower
 11° /7° 4.4 mm 3
10 Dec. Moderate rain
Moderate rain
 10° /6° 2.1 mm 3
11 Dec. Overcast
Overcast
 9° /5° 0 mm 3
12 Dec. Light rain shower
Light rain shower
 10° /5° 2.7 mm 3
13 Dec. Light drizzle
Light drizzle
 8° /4° 0.5 mm 2
14 Dec. Partly cloudy
Partly cloudy
 10° /7° 0 mm 0.1
15 Dec. Patchy rain possible
Patchy rain possible
 10° /9° 0.1 mm 0
16 Dec. Overcast
Overcast
 11° /5° 0.1 mm 0
17 Dec. Sunny
Sunny
 7° /3° 0 mm 0.1
18 Dec. Partly cloudy
Partly cloudy
 11° /6° 0.1 mm 0.1
19 Dec. Patchy rain possible
Patchy rain possible
 10° /7° 0.2 mm 2
20 Dec. Sunny
Sunny
 7° /4° 0 mm 3
21 Dec. Moderate rain
Moderate rain
 6° /6° 5.8 mm 2
22 Dec. Partly cloudy
Partly cloudy
 7° /4° 0 mm 3
23 Dec. Cloudy
Cloudy
 7° /4° 0.1 mm 2
24 Dec. Sunny
Sunny
 7° /4° 0 mm 2
25 Dec. Patchy rain possible
Patchy rain possible
 8° /5° 0.7 mm 2
26 Dec. Sunny
Sunny
 5° /2° 0 mm 2
27 Dec. Sunny
Sunny
 5° /2° 0 mm 2
28 Dec. Moderate rain at times
Moderate rain at times
 10° /7° 2.1 mm 3
29 Dec. Overcast
Overcast
 9° /4° 0.1 mm 2
30 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /4° 4.9 mm 3
31 Dec. Heavy rain at times
Heavy rain at times
 11° /6° 7.1 mm 3
Next
Important Notice
Our weather forecast for Slough 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 Slough forecast closer to your planned date for the most up-to-date weather information.
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Slough in December - FAQ

What are the expected maximum and minimum temperatures in Slough during December?
During December, expect a variety of temperatures with highs around 9° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Slough during December?
Moderate rainfall is anticipated in Slough during December, with a total of 72.2 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
Will it snow in Slough in December 2025?
Slough typically sees 0.06 cm of snowfall during December.
What are the typical wind conditions in Slough during December?
The average wind speed in Slough during December is 27 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Slough

Explore the daily rainfall trends and prepare for Sloughs December weather 💧
Typically, Slough has 19 rainy days in December with a total of 72.2 mm of rainfall.

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Get accurate weather forecasts for Slough, located at latitude 51.509 and longitude -0.595. Stay updated with localized weather information tailored for Slough.

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