Penco's climate is mild, with temperatures gradually decreasing as the year progresses. The summer months of January and February are warm, with average highs around 25°C and lows around 9-10°C. March and April see a slight cooling trend, with maximum temperatures dipping to 24°C. By May and June, the temperature range narrows significantly, with averages hovering around 12-11°C, before stabilizing in July and August at around 9-10°C. The autumn months of September bring a slight warming trend, but overall, Penco's climate remains relatively cool throughout the year.