A321
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Fatigue; Workload; Training / Qualification; Situational Awareness; Human-Machine Interface; Distraction; Communication Breakdown
Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Unstabilized Approach
Flight Crew Became Reoriented; Flight Crew Regained Aircraft Control
Human Factors; Software and Automation
At 10;000 ft. cleared direct ZZZZZ and cleared visual RWY XXL ZZZ. We both agreed 8;000 ft. was a safe altitude due to terrain then 7;000 ft. after clearing the hills. Flying pilot; FO (First Officer); set 8;000 ft. then 7;000 ft. in the altitude window. It seemed we were high since we delayed the descent so we were trying to get down. I did not notice the altitude was set to 6;000 ft. Approaching ZZZZZ I realized we were low and told the FO to stop the descent. We climbed slightly and joined the Glideslope to continue the approach. We did not get any terrain warnings but it was concerning that we descended lower than anticipated at night into a high altitude airport.The FO was low time in the airplane and had just came back from a 5 year absence. I did not realize he was behind a bit on the automation. While I was trying to figure out what he was doing I lost situational awareness even though we had discussed safe altitudes. It was also the third leg we had flown that day so we were both tired.I was overly depending on the automation to help reduce the work load for both of us. The automation will only help if it is programed correctly so a person has to be very careful to cross check all available information. From now on I think it is best to request an instrument approach when it's dark going into airports you're not 100 percent familiar with. From now on I will at the very least request to join the visual further out on the instrument approach course in order to get more stabilized.
Air carrier flight crew reported descending too low while conducting an approach at night.