Benchmarked strictly across TripTiming's 5 empirical pillars: Crowds, Weather, Vibes, Prices, and Safety.
Amman (Petra) emerges as the optimal December destination with an overall TripTiming Index of 71/100 vs 64/100 for Cairo (+7 point advantage). Amman (Petra) experiences substantially lower visitor footfall and shorter landmark queues (low density / tranquil vs heavy visitor congestion in Cairo). This is reinforced by lower lodging rates (~$94/night vs ~$203/night, saving ~$763 over 7 nights). While Cairo retains an edge in Weather Comfort (96/100 vs 74/100), Amman (Petra)'s commanding performance in Space & Crowds secures the overall December recommendation.