| Official Name: | Adailou أديلو |
| Settlement Type: | Town |
| Pushpin Map: | Djibouti |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Djibouti |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name: | Djibouti |
| Subdivision Name1: | Tadjoura |
| Unit Pref: | Metric |
| Population Total: | 1,017 |
| Coordinates: | 11.95°N 86°W |
| Elevation M: | 1050 |
Adailou (Arabic: أديلو) is a town in the Tadjoura region of Djibouti. It sprawls on a wide basin surrounded by granitic mountains on all sides. Adailou has one of the mildest climates in Djibouti, which is not always passable during the rainy season.
Adaylou is one of the largest villages in the Tadjourah region north of Djibouti. According to tradition, the village is where the ancestor of Adaal, Haral-Maahis, gave birth to his lineage.
The majority of the population of Adailou is Afars.
One of the distinctive features of Adailou countryside is the widespread growing of vegetables. Many agriculture are located throughout the town.
Known for its mild climate, Adailou is unusual like Airolaf and Randa in hosting a large camp in the summer, during which life in Tadjoura and Djibouti City is difficult because of the heat. Winters are mild with an average temperature of 181NaN1 and an average minimum of 131NaN1 in January, the coolest month. Summers are hot with June being the hottest month, averaging 34.41NaN1 during the day and 231NaN1 during the night. The town has its dry season from April through to May.
Adailou has overall a hot semi-arid climate (BSh) in Köppen-Geiger system.