Casablanca, Morocco's largest city, sits on the Atlantic coast in the west of the country, on a low coastal plain at approximately 33.57°N, 7.59°W. It has a mild Mediterranean climate with a strong oceanic influence (Köppen Csa) — hot, dry summers and mild, wetter winters — tempered year-round by the cool Canary Current flowing offshore, which keeps its temperatures notably moderate and its summers gentler than the Moroccan interior.

Summer, from June to September, is warm, dry and sunny rather than scorching, with August the warmest month — average highs around 26–27°C — kept comfortable by cool Atlantic breezes and the offshore current, so heatwaves are relatively rare. Morning fog and dew are common along the coast. The exception comes when the Chergui, a hot, dry wind off the Sahara, breaks through and can briefly push temperatures well above 35–40°C. Rain is essentially absent in high summer.

Winter, from December to February, is mild and the rainy season, with January the coolest month — average highs around 17–18°C and lows near 8°C, rarely approaching freezing thanks to the moderating ocean. Snow is unknown in the city. Sunny spells alternate with periods of rain arriving on Atlantic weather systems, and the gentle, spring-like winters make the coast comfortable year-round.

Casablanca receives around 400–450 mm of rain a year, concentrated between November and April while the summer stays dry; the winter rain can occasionally arrive in intense bursts heavy enough to cause flooding. The cool Canary Current also promotes atmospheric stability that helps keep total rainfall modest. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.

Casablanca's climate is shaped above all by the cool Atlantic and the Canary Current, which give it mild, fog-prone, comfortable summers often compared to coastal California, quite unlike the searing heat just inland. Its main disruptive weather is the Chergui (the local sirocco), a hot, dust-laden desert wind that can sweep over the plains a few times a year and briefly send temperatures soaring.

To follow any single measurement in Casablanca more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.