Casablanca's climate is fairly temperate and stays mild throughout the year. During the summer months it can get hot with the mercury regularly climbing to 30°C or more. The nights are cool and fresh with temperatures dropping back to around 15°C. You might want to carry along plenty of sunscreen for the day and a light jacket or sweater for the night. Some beautiful traditional Moroccan clothing will keep you warm and also be a great souvenir to take home.
Winters are often mild and the city escapes any really cold weather. The rainy season is from November to April, but most days experience sunshine and rainfall is generally low. The best time to visit is from April to July when the weather is consistent. Temperatures reach their peak in July and August when rainfall is minimal.