With a population of around 9,900, Rosso sits in Saint-Louis, Senegal. The city operates in the Africa/Dakar time zone.
In 2025, Rosso recorded an average annual temperature of 81°F. The hottest temperatures reached 114°F in May; the coolest were 55°F in December. Total precipitation for the year was 8 inches, with the wettest month being August.
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