McLaren have made steady progress throughout the season but the two-time champion still expects difficulties for the team at the final race of the season.
"The faster first sector and the two long straights in the middle sector at Yas Marina mean that it isn’t a track that will naturally suit our package, but over the course of Friday we’ll work hard to dial in the car to make the most of what we have and extract as much performance as possible," Alonso told Fox Sports.
"It’s an interesting track to set the car up for, as although it’s in the desert, the track temperature cools a lot during the course of the race as we reach twilight, so the tyre conditions and grip levels are constantly evolving as we reach the chequered flag.
Despite that, Alonso is still hoping the end the season on a high.
"It’s a really unique place and a great circuit to end the season at, and I hope we can push for a positive end to the year," he said
Bahrain International Circuit - Winter testing