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Weather in Conwy for December 2025

Your guide to Conwy weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Yellow Rain Warning - See hour by hour.

    • Temperatures

  • Until now, December 2025 in Conwy has been nearly identical to the historical average, with a temperature of 10.3 °C (showing only a slight deviation of 0.5 °C).

  • Expect cooler weather in the next days in Conwy with the forecast suggesting a temperature of 8.2 °C, lower than the historical average.

  • In general, the average temperature in Conwy at the beginning of December is 10.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 8.7 °C by the end of December.

    • Rain 🌧️

  • Conwy in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 141.3 mm.

    • More

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

Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
9°/6°
Temperatures
Average wind speed
33 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Conwy Weather December

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

Temperatures trend during December in Conwy

See the weather trend as well as the moving average line

December weather in Conwy day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /7° 28.6 mm 3
2 Dec. Moderate rain at times
Moderate rain at times
 9° /4° 6 mm 2
3 Dec. Patchy rain possible
Patchy rain possible
 9° /3° 0.8 mm 2
4 Dec. Heavy rain at times
Heavy rain at times
 9° /3° 5.4 mm 3
5 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /5° 14.9 mm 3
6 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 9.9 mm 3
7 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /6° 10.6 mm 3
8 Dec. Moderate rain at times
Moderate rain at times
 9° /7° 5.1 mm 3
9 Dec. Overcast
Overcast
 11° /6° 11.7 mm 3
10 Dec. Cloudy
Cloudy
 8° /6° 0 mm 3
11 Dec. Sunny
Sunny
 8° /5° 0 mm 4
12 Dec. Patchy rain possible
Patchy rain possible
 8° /4° 3.5 mm 2
13 Dec. Patchy rain possible
Patchy rain possible
 8° /5° 0.6 mm 2
14 Dec. Moderate rain
Moderate rain
 11° /10° 7.2 mm 0
15 Dec. Heavy rain
Heavy rain
 9° /7° 22.1 mm 0
16 Dec. Patchy rain possible
Patchy rain possible
 8° /4° 0.3 mm 0.1
17 Dec. Patchy rain possible
Patchy rain possible
 9° /3° 1 mm 0.1
18 Dec. Patchy rain possible
Patchy rain possible
 11° /8° 2.7 mm 0.1
19 Dec. Partly cloudy
Partly cloudy
 9° /5° 0.1 mm 3
20 Dec. Sunny
Sunny
 7° /3° 0 mm 2
21 Dec. Partly cloudy
Partly cloudy
 7° /3° 0 mm 2
22 Dec. Patchy rain possible
Patchy rain possible
 6° /4° 0.5 mm 1
23 Dec. Partly cloudy
Partly cloudy
 7° /3° 0 mm 3
24 Dec. Partly cloudy
Partly cloudy
 9° /5° 0 mm 3
25 Dec. Patchy rain possible
Patchy rain possible
 10° /4° 0.8 mm 2
26 Dec. Partly cloudy
Partly cloudy
 6° /3° 0 mm 2
27 Dec. Partly cloudy
Partly cloudy
 6° /4° 0 mm 2
28 Dec. Overcast
Overcast
 10° /7° 0 mm 3
29 Dec. Overcast
Overcast
 9° /6° 0 mm 2
30 Dec. Overcast
Overcast
 9° /7° 0 mm 2
31 Dec. Light rain
Light rain
 11° /8° 5.8 mm 3
Next
Important Notice
Our weather forecast for Conwy 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 Conwy forecast closer to your planned date for the most up-to-date weather information.
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Conwy in December - FAQ

What are the expected maximum and minimum temperatures in Conwy during December?
During December, expect a variety of temperatures with highs around 9° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Conwy during December?
Significant rainfall exceeding 141.3 mm is expected in Conwy during December, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Conwy in December 2025?
Conwy typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Conwy during December?
The average wind speed in Conwy during December is 33 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Conwy

Explore the daily rainfall trends and prepare for Conwys December weather 💧
Typically, Conwy has 17 rainy days in December with a total of 141.3 mm of rainfall.
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Get accurate weather forecasts for Conwy, located at latitude 53.281 and longitude -3.83. Stay updated with localized weather information tailored for Conwy.

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