Weather forecast for this week in Penarth - 20 Oct to 26 Oct
By Mr.Data 20th Oct 2025
By Mr.Data 20th Oct 2025

Weekly Weather Overview for Penarth
This week's weather forecast for Penarth indicates a predominantly cloudy and windy string of days with significant chances of rain. Temperatures remain mild at the start, gradually cooling as the week progresses, compelling residents to prepare for a damp and blustery week. Winds vary but are expected to be quite strong mid-week.
Daily Forecast
Monday: Expect partly cloudy skies with intermittent rain showers throughout the day. Temperatures will be relatively mild with a high of 15°C and a low of 13°C. Humidity levels are high at 89%, underscoring the likelihood of rain with a 100% chance. Winds will be moderate at 23mph.
Tuesday: Similar to Monday but without significant rain, the day will see partly cloudy skies. Temperatures slightly decrease to a high of 14°C and remain steady at a low of 13°C. Winds are expected to be quite strong, peaking at 36mph, and the chance of rain reduces to 42% with a slight decrease in humidity to 86%.
Wednesday: Anticipate a return to rainy conditions under cloudy skies, with precipitation at 94%. The temperature will see a slight increase to a high of 16°C, with a low of 12°C. Wind speeds drop to 24mph while humidity remains high at 87%.
Thursday: The weather remains volatile with partly cloudy skies and a high rainfall probability of 94%. Temperatures are consistent with Wednesday, with highs of 16°C and a dip to 11°C. Winds pick up substantially, reaching 51mph, necessitating attention to possible disruptions.
Friday: A cooler day awaits with partly cloudy skies and rain; temperatures drop to a high of 11°C and a low of 9°C. The chance of rain remains high at 94%, paired with a windspeed of 45mph and slightly lower humidity at 74%.
Saturday: A bit cooler with partly cloudy skies and 84% precipitation chance. Expect temperatures to range from a high of 10°C to a low of 5°C. Winds slow to 27mph, however, they'll still be a noticeable force.
Sunday: Concluding the week with partly cloudy skies and a reduced chance of rain at 52%. It will be a cooler day with the highest temperature reaching only 9°C and dropping to a low of 4°C. Humidity rises slightly to 82% with calming winds at 21mph.
Comparison to Previous Period
Last week displayed a more varied mix of sunny spells and scattered showers, contrasted with the consistent cloud cover and higher rainfall probability this week. Wind speeds are notably stronger this week, especially towards the midweek.
Commuting Advice
Expect damp driving conditions on most days, with high winds particularly on Thursday. Windy and wet weather can lead to delays and disruptions, take caution, and allot extra commuting time. Ensure to check for public transportation updates as services could be affected by the weather conditions.
Advice for Weekend Plans
If planning outdoor activities for the weekend, Saturday seems more favorable though still precarious with high chances of rain. Sunday offers a slightly drier respite; colder temperatures will likely necessitate warm clothing and perhaps rain gear. Consider indoor alternatives or flexible outdoor plans to adapt to potential weather changes.
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