Succulents can usually go a week or two without water depending on the climate.
But you should always check the plant and soil to see if the succulents need water and if the succulents leaves are shriveling or wrinkling then it's a sign the succulents need water.
Succulents only need to be watered once the soil of the succulents start to become dry.
So if the soil that the succulents are planted in is still wet or moist then it doesn't need watered but when the soil becomes dry or becomes fairly dry then you should water them.
During the summer succulents may need water twice per week but during the winter the succulents may only need watering once per week or even every 2 weeks.
Just check the soil to be sure if it's dry or wet and if wet it doesn't need watering but if the soil becomes dry then it needs some water.
Avoid over watering the succulents because it can cause the plant to have root rot and then cause the succulents to do.
If the leaves of the succulent are starting to shrivel or wrinkle then it's a sign that the succulents need more water.