| Méjannes-le-Clap | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Méjannes-le-Clap.svg |
| Arrondissement: | Alès |
| Canton: | Rousson |
| Insee: | 30164 |
| Postal Code: | 30430 |
| Mayor: | Jérôme Bassier[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.2261°N 4.3475°W |
| Elevation Min M: | 90 |
| Elevation Max M: | 474 |
| Area Km2: | 38.24 |
Méjannes-le-Clap (pronounced as /fr/; oc|Mejanas e lo Clap) is a commune in the Gard department in southern France. It is located 30 km north east of Alès, close to the river Cèze. It is a centre for outdoor activities and environmental tourism.
Méjannes-le-Clap has a hot-summer Mediterranean climate (Köppen climate classification Csa). The average annual temperature in Méjannes-le-Clap is . The average annual rainfall is with October as the wettest month. The temperatures are highest on average in July, at around, and lowest in January, at around . The highest temperature ever recorded in Méjannes-le-Clap was on 28 June 2019; the coldest temperature ever recorded was on 15 December 2001.