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Weather in Harrow for December 2025

Your guide to Harrow weather in December - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Harrow during December is quite rare, with fewer than 2 snowy days on average.
    According to Harrow snow forecast for December 2025, no snow is expected until the end of the month.

    • Temperatures

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

  • The forecast for the next days in Harrow predicts temperatures to be around 9 °C, close to the historical average.

  • In general, the average temperature in Harrow at the beginning of December is 9.3 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 8.9 °C by the end of December.

    • Rain 🌧️

  • Harrow in December brings notable rainfall, with an average of 20 rainy days and a total precipitation of 74.5 mm.

    • More

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

Average dry days
10
Dry days
Average rainy days
20
Rainy days
Average snowy days
1
Snow days
Average temperatures
9°/5°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Harrow Weather December

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

Temperatures trend during December in Harrow

See the weather trend as well as the moving average line

December weather in Harrow day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Light drizzle
Light drizzle
 10° /5° 2.7 mm 0.1 cm
2 Dec. Partly cloudy
Partly cloudy
 8° /3° 0.7 mm 0 cm
3 Dec. Light rain shower
Light rain shower
 7° /2° 2.2 mm 0 cm
4 Dec. Light rain shower
Light rain shower
 9° /3° 5.3 mm 0 cm
5 Dec. Patchy rain possible
Patchy rain possible
 10° /5° 4 mm 0 cm
6 Dec. Patchy rain possible
Patchy rain possible
 9° /5° 0.3 mm 0 cm
7 Dec. Light rain
Light rain
 12° /5° 6.1 mm 0 cm
8 Dec. Patchy rain possible
Patchy rain possible
 10° /7° 1.9 mm 0 cm
9 Dec. Moderate rain
Moderate rain
 11° /8° 5.3 mm 0 cm
10 Dec. Moderate rain
Moderate rain
 10° /6° 2.6 mm 0 cm
11 Dec. Overcast
Overcast
 9° /6° 0 mm 0 cm
12 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 2.6 mm 0 cm
13 Dec. Light drizzle
Light drizzle
 8° /4° 0.4 mm 0 cm
14 Dec. Patchy rain possible
Patchy rain possible
 8° /4° 0.1 mm 0 cm
15 Dec. Patchy rain possible
Patchy rain possible
 12° /10° 0.3 mm 0 cm
16 Dec. Moderate rain
Moderate rain
 11° /7° 12.7 mm 0 cm
17 Dec. Partly cloudy
Partly cloudy
 7° /4° 0 mm 0 cm
18 Dec. Patchy rain possible
Patchy rain possible
 11° /8° 1.3 mm 0 cm
19 Dec. Partly cloudy
Partly cloudy
 9° /6° 0.1 mm 0 cm
20 Dec. Patchy rain possible
Patchy rain possible
 6° /6° 1.6 mm 0 cm
21 Dec. Patchy rain possible
Patchy rain possible
 8° /5° 0.2 mm 0 cm
22 Dec. Patchy rain possible
Patchy rain possible
 8° /7° 2.3 mm 0 cm
23 Dec. Patchy rain possible
Patchy rain possible
 9° /6° 0.1 mm 0 cm
24 Dec. Overcast
Overcast
 9° /7° 0 mm 0 cm
25 Dec. Sunny
Sunny
 9° /6° 0 mm 0 cm
26 Dec. Sunny
Sunny
 7° /4° 0 mm 0 cm
27 Dec. Overcast
Overcast
 8° /5° 0 mm 0 cm
28 Dec. Cloudy
Cloudy
 7° /3° 0 mm 0 cm
29 Dec. Overcast
Overcast
 9° /4° 0.1 mm 0 cm
30 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /5° 5 mm 0 cm
31 Dec. Heavy rain at times
Heavy rain at times
 11° /7° 6.8 mm 0 cm
Next
Important Notice
Our weather forecast for Harrow 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 Harrow forecast closer to your planned date for the most up-to-date weather information.
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Harrow in December - FAQ

What are the expected maximum and minimum temperatures in Harrow 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 Harrow during December?
Moderate rainfall is anticipated in Harrow during December, with a total of 74.5 mm spread over approximately 20 days. Considering plans for rainy days is advisable.
Will it snow in Harrow in December 2025?
Harrow typically sees 0.22 cm of snowfall during December.
What are the typical wind conditions in Harrow during December?
The average wind speed in Harrow during December is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

Harrow snow forecast December 2025

Track daily snowfall levels and discover Harrow’s snowy potential this December ❄️
On average, Harrow sees 1 snowy days during December, with approximately 0.2 cm of total snowfall.

December rainfall patterns in Harrow

Explore the daily rainfall trends and prepare for Harrows December weather 💧
Typically, Harrow has 20 rainy days in December with a total of 74.5 mm of rainfall.

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Get accurate weather forecasts for Harrow, located at latitude 51.578 and longitude -0.332. Stay updated with localized weather information tailored for Harrow.

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