For almost a month the smoke has plagued Singapore and Malaysia, curtailing school and outdoor activities.
The captain of a speedboat in the Indonesian province of Jambi even blamed the haze today for poor visibility that led to a crash in which two people died.
Tourists will reconsider plans for visiting Phuket if the haze continues - and yesterday the unhealthy particles level was recorded at 173-200, the highest so far on the island.
People with respiratory disorders have reason to worry at a level 0f 120 and at 301, healthy people also begin to suffer.
In the worst air pollution readings, Singapore and Malaysia topped 400 and 700 respectively in 2013.
A level of 10 is considered normal.
The level of 200 on Phuket was recorded in the three hour period between noon and 3pm yesterday. Similar levels have been reached in Krabi, Phang Nga, Ranong and Trang provinces.
At 6am today, hazard levels on Phuket appeared to be improving.
Phuket Marine Office 5 director, Phuripat Theerakulpisut, warned small boat drivers yesterday that the haze had made conditions at sea less safe and reduced visibility down to one mile.
Thailand's government has yet to make a public comment about the haze, although law suits against the companies responsible are being demanded in Malaysia and Singapore.
Tourism is considered to be the one positive in Thailand's economic outlook at present, with increasing numbers of Chinese visiting. Phuket's high season is beginning and increasing numbers of Chinese are expected.
A worsening haze is leading Singaporeans to strike comparisons with Beijing, where haze is a constant hazard and many residents wear surgical masks.
In the past, Phuket meteorologists have even denied the haze has been caused by smoke from Indonesia, possibly in a misguided attempt to protect Phuket tourism even at the cost of peoples' health.