The Hawaii Tourism Authority said Tuesday that hotels statewide had a drop in occupancy last month, the fifth month in a row of declines.

Occupancy fell to 76.4 percent, a drop of 2.4 percentage points from October 2017.

Revenue per available room, or RevPAR, a key measure of hotel profitability, was flat at $190, and the average daily room rate rose 3.5 percent to $249, according to the Hawaii Hotel Performance Report compiled by STR Inc.

The report did not mention any impact from the ongoing strike by Unite Here Local 5 hotel workers at five Marriott-managed hotels: Sheraton Waikiki, Royal Hawaiian Hotel, Westin Moana Surfrider, Sheraton Princess Kaiulani and Sheraton Maui. The strike began Oct. 8, and negotiations were set to resume next week.

“We don’t have individual data for properties,” said Jennifer Chun, HTA tourism research director, “so we are not certain of the impact (of the strike).”

Hotel occupancy has been declining year-over-year since June. Chun said 2017 was a particularly strong year for hotels, so it is hard to top those numbers.

In October, occupancy was down on all the main islands, with the Big Island leading the decline. Hawaii County saw a drop of 7.4 percentage points to 66.1 percent occupancy.

“Hotels on the island of Hawaii continued to feel the lingering effect of Kilauea Volcano’s eruption,” Chun said.

Oahu was down 0.8 percentage point to 81.4 percent.

Oahu got a boost from a dentist convention. “On Oahu the American Dental Association’s Annual Meeting helped to grow RevPAR for the island’s hotel industry,” Chun said. Oahu’s RevPAR was up 1.4 percent at $185.

Occupancy on Kauai fell 2.6 percentage points to 73.6 percent, but rates were up.

“Kauai hotels maintained their pattern this year of recording strong monthly increases in both RevPAR and ADR in October,” Chun said.

Among the various hotel categories, only “upscale class” hotels reported increases in both occupancy, up 1.1 percentage points to 72.7 percent, and ADR, up 7.3 percent to $197.

The hotel occupancy survey included 161 properties representing 47,737 rooms, or 89.8 percent of all lodging properties with 20 rooms or more in the state.