Cardiff / Caerdydd City Weather Forecast 15 Days, Weather in Cardiff / Caerdydd Today
Current weather conditions and 15 day weather forecast for Cardiff / Caerdydd, Wales, UK including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Cardiff / Caerdydd
| 20 December 2025 Saturday 6.1 ° C / 43°F  Partly Cloudy |
Feels Like : 3 ° C / 37.4°F Humidity : % 100 Pressure : 1010 mb Wind Speed : 15.8 kmph / 9.8 miles from SE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Cardiff / Caerdydd, Wales, UK
Weather Forecast for next 15 Days for Cardiff / Caerdydd including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is your temperature trend for the next 15 Days. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 December 2025 Saturday |  Patchy rain nearby |
5.8 ° C | 8.9 ° C | 7.2 ° C | % 88 | 89% | 0.1 | Sunrise:08:15 AM Sunset: 04:05 PM |
Moonrise:09:16 AM Moonset: 03:52 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Moderate rain |
6.7 ° C | 8.6 ° C | 7.7 ° C | % 94 | 85% | 0 | Sunrise:08:16 AM Sunset: 04:06 PM |
Moonrise:09:57 AM Moonset: 04:58 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Moderate rain |
8.2 ° C | 9.3 ° C | 8.6 ° C | % 93 | 89% | 0 | Sunrise:08:16 AM Sunset: 04:06 PM |
Moonrise:10:26 AM Moonset: 06:13 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
6.7 ° C | 9.4 ° C | 8.4 ° C | % 90 | 88% | 0 | Sunrise:08:17 AM Sunset: 04:07 PM |
Moonrise:10:48 AM Moonset: 07:31 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
2.9 ° C | 6.8 ° C | 6.2 ° C | % 84 | 89% | 0 | Sunrise:08:17 AM Sunset: 04:07 PM |
Moonrise:11:04 AM Moonset: 08:49 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Sunny |
2 ° C | 3.9 ° C | 2.6 ° C | % 78 | 0% | 2 | Sunrise:08:17 AM Sunset: 04:08 PM |
Moonrise:11:18 AM Moonset: 10:07 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
1.3 ° C | 3.3 ° C | 2 ° C | % 71 | 0% | 2 | Sunrise:08:18 AM Sunset: 04:09 PM |
Moonrise:11:30 AM Moonset: 11:26 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Patchy rain nearby |
2.5 ° C | 5 ° C | 3.9 ° C | % 81 | 0% | 1 | Sunrise:08:18 AM Sunset: 04:10 PM |
Moonrise:11:41 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
2 ° C | 4.4 ° C | 3.4 ° C | % 79 | 0% | 2 | Sunrise:08:18 AM Sunset: 04:11 PM |
Moonrise:11:53 AM Moonset: 12:46 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
1.6 ° C | 3.4 ° C | 2.5 ° C | % 84 | 75% | 1 | Sunrise:08:18 AM Sunset: 04:11 PM |
Moonrise:12:08 PM Moonset: 02:10 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
1.6 ° C | 4.6 ° C | 3 ° C | % 77 | 0% | 2 | Sunrise:08:18 AM Sunset: 04:12 PM |
Moonrise:12:28 PM Moonset: 03:40 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Partly Cloudy |
1.7 ° C | 4.4 ° C | 2.7 ° C | % 75 | 0% | 2 | Sunrise:08:18 AM Sunset: 04:13 PM |
Moonrise:12:56 PM Moonset: 05:12 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Partly Cloudy |
-0.3 ° C | 3 ° C | 1.2 ° C | % 78 | 0% | 2 | Sunrise:08:18 AM Sunset: 04:14 PM |
Moonrise:01:38 PM Moonset: 06:42 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday | Sunny |
-1.4 ° C | 3.1 ° C | 0.3 ° C | % 71 | 0% | 2 | Sunrise:08:18 AM Sunset: 04:15 PM |
Moonrise:02:40 PM Moonset: 07:59 AM Moon Phase ( Waxing Gibbous ) |
|
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