Kerry, who arrived in Kuwait today evening after a lightning stop in Saudi Arabia, will visit Abu Dhabi to meet Crown Prince Mohammed bin Zayed Al-Nahayan, State Department spokeswoman Jen Psaki said.
He has been touring Sunni Arab states, which are mostly opposed to Syrian President Bashar al-Assad, in the wake of President Barack Obama's decision to expand US support for the rebels.
The United States took the decision after concluding that Assad defied warnings and used chemical weapons, but Obama remains wary of a large US involvement in an increasingly sectarian conflict that has claimed nearly 100,000 lives.
He is likely to hold tense talks in Brunei with Russian Foreign Minister Sergei Lavrov. Russia is a key supporter of Assad and has entered a new showdown with Washington after Edward Snowden, a former contractor who leaked details of US surveillance, flew to Moscow in hopes of reaching asylum in Latin America.
During his trip, Kerry also visited Qatar, a top supporter of the Syrian rebels, and India, where he pledged a new effort to build relations between the world's two largest democracies.