The 21st parallel north is a circle of latitude that is 21 degrees north of the Earth's equatorial plane. It crosses Africa, Asia, the Indian Ocean, the Pacific Ocean, North America, the Caribbean, and the Atlantic Ocean. At this latitude the sun is visible for 13 hours, 25 minutes during the summer solstice and 10 hours, 51 minutes during the winter solstice.

Around the world

Starting at the Prime Meridian and heading eastwards, the parallel 21° north passes through: ! scope="col" width="125" | Coordinates ! scope="col" | Country, territory or sea ! scope="col" | Notes ! scope="row" | undefined ! scope="row" | 🇩🇿 ! scope="row" | 🇳🇪 ! scope="row" | 🇹🇩 ! scope="row" | 🇱🇾 ! scope="row" | 🇸🇩 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" | 🇸🇦 ! scope="row" | 🇴🇲 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" | 🇮🇳 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" | 🇮🇳 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" | 🇧🇩 ! scope="row" | 🇲🇲 (Burma) ! scope="row" | 🇱🇦 ! scope="row" | 🇻🇳 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | ! scope="row" style="background:#b0e0e6;" | South China Sea ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | 🇺🇸 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | 🇲🇽 ! scope="row" style="background:#b0e0e6;" | Gulf of Mexico ! scope="row" | 🇲🇽 ! scope="row" style="background:#b0e0e6;" | Caribbean Sea ! scope="row" | 🇨🇺 ! scope="row" style="background:#b0e0e6;" | Caribbean Sea ! scope="row" | 🇨🇺 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | 🇧🇸 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | Western Sahara ! scope="row" | undefined ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | undefined ! scope="row" | undefined