Weather in Cardiff
What's the weather like in Cardiff?
Cardiff has a moderate climate and moderate rainfall spread across the year. Average daytime highs range from 8°C (47°F) in January to 21°C (69°F) in July, with overnight lows around 3°C (38°F) and 14°C (56°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Cardiff are June through September.
Quick facts
- Country
- 🇬🇧 United Kingdom
- Region
- Europe
- Time zone
- Europe/London
- Coordinates
- 51.482, -3.179
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 8°C / 47°F | 3°C / 38°F | 111 mm | 17 | — |
| February | 9°C / 48°F | 3°C / 38°F | 102 mm | 14 | — |
| March | 10°C / 51°F | 4°C / 40°F | 97 mm | 16 | — |
| April | 13°C / 56°F | 5°C / 42°F | 61 mm | 10 | — |
| May | 16°C / 61°F | 9°C / 48°F | 82 mm | 12 | — |
| June | 19°C / 67°F | 12°C / 54°F | 67 mm | 13 | — |
| July | 21°C / 69°F | 14°C / 56°F | 80 mm | 14 | — |
| August | 20°C / 68°F | 13°C / 56°F | 105 mm | 15 | — |
| September | 18°C / 65°F | 12°C / 53°F | 87 mm | 12 | — |
| October | 15°C / 59°F | 10°C / 49°F | 134 mm | 15 | — |
| November | 11°C / 52°F | 6°C / 43°F | 114 mm | 16 | — |
| December | 9°C / 49°F | 5°C / 41°F | 139 mm | 18 | — |
Cardiff by month
Detailed weather for any specific month:
Cities with a similar climate to Cardiff
Frequently asked questions
When is the best time to visit Cardiff?
The most comfortable months in Cardiff are usually June, July, August, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Cardiff?
July is typically the hottest month in Cardiff, averaging a high of 21°C (69°F).
What is the coldest month in Cardiff?
January is usually the coldest, with average lows around 3°C (38°F).
Does it snow in Cardiff?
Snow is rare in Cardiff; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.