Cardiff Weather Forecast
Wales
☁️
16°C
Cloudy · wind 9 m/s
The week ahead
| Day | Weather | High / Low | Rain |
|---|---|---|---|
| Today | ☁️ Cloudy | 19° / 16°C | 26.9 mm |
| Sun 20 Sep | 🌤️ Fair | 18° / 11°C | - |
| Mon 21 Sep | ☁️ Cloudy | 19° / 11°C | 0.2 mm |
| Tue 22 Sep | ☁️ Cloudy | 20° / 15°C | 0.5 mm |
| Wed 23 Sep | ☁️ Cloudy | 19° / 14°C | 0.7 mm |
| Thu 24 Sep | ⛅ Partly cloudy | 18° / 10°C | - |
| Fri 25 Sep | ☁️ Cloudy | 18° / 14°C | 0.3 mm |
Gardening in Cardiff
Use this forecast to time jobs in the garden. Sow and plant out tender crops only once frost risk has passed, water in the cool of the morning or evening, and take shelter from strong winds into account. See our frost dates by region, month-by-month calendar and growing guides to plan the season.
Weather data from MET Norway (Yr), licensed CC BY 4.0. Forecasts are updated regularly; always check an official source before acting on frost or storm warnings. Page updated 19 Sep 2026.