In rainy weather, start with the Kathu courses near town. Phuket Country Club Old Course, Loch Palm and Red Mountain are 20-25 minutes from town and their restaurants open between 06:00 and 07:00. With a short transfer it is easy to switch between a morning and an afternoon round as the sky changes.
If you do not want a wet morning to cost you the day, look for a range and massage. Laguna Golf Phuket has a massage facility and a range open 08:00-17:00. Katathong Golf Resort keeps its range and restaurant open to 21:00 so you can finish with practice once the sky clears.
On a trip with parents, transfer time comes first. Mission Hills Phuket is 20 minutes from the airport, which suits an arrival afternoon or departure morning and keeps the plan intact if a flight runs late. Carts are compulsory at many courses, which eases the walking, and a team is four players.
For a day wholly given to golf, compare Aquella and Katathong. Both are par 72 layouts of 7,000+ yards opened in 2015 or later, 95 and 130 minutes from town, so you need an early start. With a transfer that long, check road conditions before leaving on a rainy day.
Before booking, confirm cart inclusion, minimum players and rain-related change and cancellation terms on the product page. Course details can vary with operating conditions.