Morocco’s climate varies considerably across the country’s northern to southern areas. Both rainfall and temperature are strongly influenced by the Atlantic Ocean to the west, the Mediterranean Sea to the north, and the Sahara Desert to the south and southeast. Most of the country’s rainfall occurs between October and May. The incursion of extratropical weather systems from Europe and the Atlantic Ocean, brings colder air and cloudiness, which results in a declining rainfall gradient from north to south that is also influenced by the Atlas Mountains. Temperatures in the arid and semi-arid southern and southeastern parts of the country are generally high, while rainfall and snow can occur in the northern mountainous areas between November and April. Most of Morocco, particularly along the coast, experiences a typical Mediterranean climate, with mild, wet winters and hot, dry summers. The rainy season extends from November to March, with average annual rainfall of 1,200 mm. The south is much drier and receives approximately 100 mm of rainfall on average each year. In the summer, temperatures along the coast range from 18°C to 28°C and can reach up to 35°C in the interior. In the winter, temperatures along the coast range from 8°C to 17°C and can drop below 0°C in the interior mountain areas.
Mean annual temperature for Morocco is 17.5°C, with average monthly temperatures ranging between 9.4°C (December, January) and 26°C (July, August). Mean annual precipitation is 318.8 mm, with highest rainfall occurring October to April, with extremely low precipitation occurring between June to August.
- Morocco has experienced considerable warming trends since the 1960s, with mean annual temperature increasing 0.9°C since the 1960s, with observed average increases of 0.2°C per decade; exceeding the global average.
- While temperature increases vary considerably by season, in Morocco, increases have been most pronounced in the April, May, June and September, October, November seasons. The hot and dry April to June season has observed the most rapid rate of temperature increases at 0.34°C per decade.
- Additionally, the frequency of days considered as ‘hot’ has significantly increased across all seasons.
- Hot nights have increased most notably by an additional 20% per month from September to November. The frequency of cold days and nights have also decreased significantly in all seasons, primarily in June, July, August.
- Precipitation trends have a high degree of variability in Morocco.
- Additionally, seasonal rainfall patterns have shifted to longer and more intense rain events in October and November, which often cause flooding, but with substantial reductions in rainfall during the rest of the year.
- An increase in the frequency and intensity of extreme events such as heavy rainfall resulting in flooding in some areas as well as droughts and heat waves in other areas have also been experienced.
- The increasing frequency, significance and duration of drought continues to be a major concern for the country.
This section provides the options to visualize historical climate data for different timeframes via map and annual cycle chart.