The weather is generally hot and humid all year. There are two seasons: the rainy season from June to October and the dry season between November and May. Humidity is highest during the rainy season and sea temperatures are warmer during this period. Rainfall varies from 12 inches (300mm) in the extreme north to 59 inches (1,500mm) in the far south, and although showers don't last very long they can cause disruption to transport. Dry season temperatures average between 72°F and 86°F (22°C and 30°C). Dakar temperatures average 75° F (24°C) from January to March, 77° F to 81° F (25°C to 27°C) in April, May and December, and 86° F (30°C) between June and October.