But the two-time Asian Tour No 1 is determined to overcome the sturdy conditions on the island to decorate his portfolio with a ninth Asian Tour title.
Thongchai has been in hibernation for four weeks at his home in Lopburi, getting himself in shape for the up-coming events, including two weeks in Europe, prior to the home tournament due from June 7-10.
"I had been playing for so many weeks and I needed a break. I haven't competed for four weeks to focus on my fitness. I need to be very strong for the next three weeks,'' said Thongchai, who spends two hours in the gym per day.
Thongchai will kick off his campaign in Wentworth next week and the following week in Wales. But his main goal will be the Samui tournament where he was in the top 10 for the past two years.
"It's a home tournament and fans love to see their own player win more than anything. My goal is to give my best shot to win here. Thai players will do their best to make sure the trophy will remain on home soil,'' said the 2001 and 2004 Asian Tour Order of Merit winner.
But Thongchai will not find the course a comfort zone unless he comes up with some new game plan. Slopes, strong winds along with narrow fairways will require good homework.
"I've got to be well prepared coming into this course. I have to pay attention to minor details, even how to walk properly down the slopes. I have to make a game plan for every hole and try to make the fairways as much as possible."
The Thai star has been far from impressive since the start of the season, making it to only one top 10 finish in the Qatar Masters.
He has also been on a long drought since snatching the Volvo Masters last December.
"No matter what my results were, I am satisfied with my season. I just need to make some good putts and make a few minor technique changes. And everything will come together. That's why I took a break to work on it," Thongchai said.
Reigning champion Chawalit Plaphol will be back to defend his title after producing a scorching win last year where he came back from six shots down to edge out Rick Gibson of Canada in a play-off. Other Thai contenders will be Prom Meesawat and Chinnarat Phadungsilp.
The 2005 victor Lu Wen-the will also make an appearance this year.