Weekend weather forecast for Penarth - 17 Oct to 19 Oct
By Mr.Data 17th Oct 2025
By Mr.Data 17th Oct 2025

Penarth Weekend Weather Forecast:
This weekend in Penarth promises to show a varied display of weather conditions. Starting with partly cloudy skies on Friday, the weekend will transition into more overcast conditions on Saturday, culminating in rain-soaked skies on Sunday. As temperatures remain consistently mild, ranging from 12 to 17 degrees Celsius, residents and visitors alike are advised to plan accordingly for a weekend that ends on a wetter note.
Friday:
The weekend begins with partly cloudy weather dominating the skies over Penarth. Temperatures are expected to range from a low of 12 degrees to a mild high of 15 degrees Celsius. Despite the clouds, the likelihood of rain is nil, with a 0% chance of precipitation. Relative humidity stands at 84%, while winds will be moderate, reaching speeds of up to 15mph. Overall, Friday presents a pleasant opportunity for outdoor activities without the worry of rain.
Saturday:
Saturday marks a shift to fully cloudy skies throughout the day. The temperature will remain steady, with highs of 15 degrees and lows of 12 degrees Celsius. Humidity will slightly decrease to 82%. There’s a higher chance of precipitation at 36%, coupled with stronger winds blowing at 22mph. It's advisable to keep an umbrella handy as some scattered showers are possible later in the day.
Sunday:
Sunday brings the most significant change in weather as clouds blanket Penarth with a high possibility of rain. With temperature highs rising to 17 degrees and lows at 14 degrees Celsius, expect a moist day with the probability of rain hitting 100%. Humidity levels will peak at 86%, and winds will briskly move at 31mph. This day is certainly one for indoor activities or sporting sturdy rainwear if venturing outside.
Commuting Advice:
For those commuting over the weekend, Friday provides the most stable weather for travel, with clear skies anticipated. On Saturday, be prepared for potential light showers, which may affect visibility and commute times, more so in the afternoon. Sunday is expected to see significant rainfall throughout, so plan for additional travel time and drive cautiously.
Advice for Weekend Plans:
Given the weather forecast, Friday appears ideal for any outdoor events or excursions. Saturday could still allow for some outdoor plans, albeit with the possibility of rainfall. Sunday would best be spent indoors due to the high certainty of rain. Those considering outdoor activities on Sunday should prepare for wet conditions and windy weather, as well as ensure protective clothing is on hand.
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