Cardiff
January
Weather in Cardiff for January 2026
Your guide to Cardiff weather in January - trends and predictions
In general, the average temperature in Cardiff at the beginning of January is 8.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 8.7 °C by the end of January.
Cardiff in January brings notable rainfall, with an average of 16 rainy days and a total precipitation of 96.8 mm.
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Temperatures
Rain 🌧️
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15
Dry days
16
Rainy days
0
Snow days
8°/3°
Temperatures
29 km/h
Avg max wind
81 %
Avg humidity
Cardiff Weather January
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  11° | 2  8° | 3  8° | 4 8° | |||
| 5 10° | 6 8° | 7 6° | 8  5° | 9 5° | 10 6° | 11 6° |
| 12 7° | 13 7° | 14 8° | 15 7° | 16  6° | 17 5° | 18  6° |
| 19 5° | 20 6° | 21 7° | 22 8° | 23  8° | 24 9° | 25 9° |
| 26 9° | 27 8° | 28 8° | 29 9° | 30 9° | 31 9° |
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Temperatures trend during January in Cardiff
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Jan. | Patchy rain possible | 11° /5° | 8.5 mm | 0 cm | |
| 2 Jan. | Partly cloudy | 8° /4° | 4 mm | 0 cm | |
| 3 Jan. | Moderate or heavy rain shower | 8° /4° | 6 mm | 0 cm | |
| 4 Jan. | Patchy rain possible | 8° /5° | 8.4 mm | 1.8 cm | |
| 5 Jan. | Patchy rain possible | 10° /4° | 6.4 mm | 0 cm | |
| 6 Jan. | Patchy rain possible | 8° /3° | 1.4 mm | 0 cm | |
| 7 Jan. | Moderate or heavy rain shower | 6° /2° | 6.5 mm | 0 cm | |
| 8 Jan. | Heavy rain at times | 5° /2° | 1.9 mm | 0 cm | |
| 9 Jan. | Patchy rain possible | 5° /1° | 0.5 mm | 0 cm | |
| 10 Jan. | Moderate or heavy rain shower | 6° /2° | 9.9 mm | 0.4 cm | |
| 11 Jan. | Heavy rain at times | 6° /2° | 7.1 mm | 0 cm | |
| 12 Jan. | Moderate or heavy rain shower | 7° /3° | 6 mm | 0 cm | |
| 13 Jan. | Patchy rain possible | 7° /3° | 0.3 mm | 0 cm | |
| 14 Jan. | Moderate or heavy rain shower | 8° /3° | 6.7 mm | 0 cm | |
| 15 Jan. | Patchy rain possible | 7° /3° | 0.6 mm | 0 cm | |
| 16 Jan. | Overcast | 6° /1° | 0.3 mm | 0 cm | |
| 17 Jan. | Overcast | 5° /0° | 0 mm | 0 cm | |
| 18 Jan. | Cloudy | 6° /0° | 0 mm | 0 cm | |
| 19 Jan. | Partly cloudy | 5° /0° | 0 mm | 0 cm | |
| 20 Jan. | Overcast | 6° /1° | 2.7 mm | 0 cm | |
| 21 Jan. | Overcast | 7° /3° | 6.7 mm | 0 cm | |
| 22 Jan. | Cloudy | 8° /3° | 1.3 mm | 0 cm | |
| 23 Jan. | Light rain | 8° /3° | 2.9 mm | 0 cm | |
| 24 Jan. | Light drizzle | 9° /3° | 3.4 mm | 0 cm | |
| 25 Jan. | Patchy rain possible | 9° /3° | 3.1 mm | 0 cm | |
| 26 Jan. | Overcast | 9° /3° | 5.5 mm | 0 cm | |
| 27 Jan. | Patchy rain possible | 8° /2° | 1.6 mm | 0 cm | |
| 28 Jan. | Overcast | 8° /3° | 1.1 mm | 0 cm | |
| 29 Jan. | Cloudy | 9° /5° | 0.9 mm | 0 cm | |
| 30 Jan. | Cloudy | 9° /2° | 0.1 mm | 0 cm | |
| 31 Jan. | Patchy rain possible | 9° /3° | 2.8 mm | 0 cm | |
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Important Notice
Our weather forecast for Cardiff in January 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 Cardiff forecast closer to your planned date for the most up-to-date weather information.
Cardiff in January - FAQ
What are the expected maximum and minimum temperatures in Cardiff during January?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 3°.
How much rainfall should be expected in Cardiff during January?
Moderate rainfall is anticipated in Cardiff during January, with a total of 96.8 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
Will it snow in Cardiff in January 2026?
Cardiff typically sees 0 cm of snowfall during January.
What are the typical wind conditions in Cardiff during January?
The average wind speed in Cardiff during January is 29 km/h, suggesting breezy to windy conditions, depending on your activities.
Cardiff snow forecast January 2026
Track daily snowfall levels and discover Cardiff’s snowy potential this January ❄️
January rainfall patterns in Cardiff
Explore the daily rainfall trends and prepare for Cardiffs January weather 💧
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