Cardiff weather forecast: Sunny skies and mild temperatures expected Saturday, September 20, 2026

Cardiff is set for a day of pleasant sunshine and mild temperatures on Saturday, September 20, 2026. Residents can expect a comfortable day with a gentle breeze, making it ideal for outdoor activities. The day will start with cooler temperatures in the morning, gradually warming up to a pleasant maximum in the afternoon.Cardiff Weather TodayToday, September 20, 2026, Cardiff will experience predominantly sunny conditions. The maximum temperature is forecast to reach 20°C, while the minimum temperature will be around 9°C. The average temperature for the day is expected to be 14.5°C. Humidity levels will be relatively high, at 85%, but this is unlikely to detract from the overall pleasant weather. There is a very low chance of rain, with the daily chance of precipitation noted as less than 5%. The maximum wind speed is predicted to be 30.58 kph, providing a refreshing breeze. Sunrise is scheduled for 06:56 and sunset for 19:16, offering a long period of daylight.Enjoy the Sunny SkiesWith a clear and sunny forecast, residents of Cardiff are encouraged to make the most of the day outdoors. The mild temperatures and low chance of rain make it an excellent opportunity for walking, cycling, or simply relaxing in local parks. Light clothing will be suitable for the day, though a light jacket might be advisable for the cooler morning and evening hours. The relatively low wind speed means that outdoor events should proceed without significant disruption.Cardiff Weather for Upcoming 7 DaysDateMax Temp (°C)Min Temp (°C)Avg Temp (°C)Condition2026-09-2020914.5Sunny2026-09-21211015.5Sunny2026-09-22221217.0Sunny2026-09-2320914.5Sunny intervals2026-09-24211317.0Sunny2026-09-25211317.0Sunny intervals2026-09-26221418.0Sunny intervalsThe outlook for Cardiff over the next seven days indicates a continuation of pleasant weather, with a strong presence of sunshine. Temperatures are expected to remain mild, with highs generally in the low 20s Celsius and lows in the single digits to low teens. The warmest days appear to be around September 22nd and September 26th, both forecast to reach a maximum of 22°C. While most days are predicted to be sunny, there will be some periods of sunny intervals, particularly on September 23rd, 25th, and 26th. There is no significant precipitation expected throughout the week, suggesting a dry spell for the city. Residents can anticipate a generally settled and agreeable weather pattern for the upcoming week.Source: Data referenced in this article is taken from the latest World News and Live updates. Download the TOI app.