Queenslanders are being urged to be on the lookout for a "wee problem" as a heatwave grips parts of the state.
Acting Health Minister Stirling Hinchliffe wants people to check the colour of their urine to ensure they are hydrated.
Mr Hinchliffe delivered the golden advice on Thursday morning as the state's south braced for another day of sweltering temperatures.
"I don't want to be squeamish about this but you need to monitor your own urine," he told reporters on the Gold Coast.
"If you are feeling that your urine is dark, you should make sure that you increase your fluid intake - that's the best way of making sure you keep yourself safe."
Mr Hinchliffe said he had been briefed about the importance of urine monitoring by the state's chief health officer.
Opposition transport spokesman Scott Emerson agreed people needed to watch their fluid intake when asked whether his counterpart, Mr Hinchliffe, had delivered a bladder blunder.
"It's hot out there today, people should do everything to make sure they do get enough fluids, (that) they stay out of the heat," Mr Emerson said.
"People need to be careful in these temperatures."
The temperature climbed to 35.5C just after 1pm in Brisbane on Thursday, considerably higher than the January average of 29C.
Towns in the state's southwest are also experiencing sweltering conditions, with temperatures in the mid 40s.
The conditions are expected to continue to Sunday or Monday, when the effects of a cooling trough should be felt.
© AAP 2017
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