Hot Climate and Travel After Tummy Tuck?

I don't think there will be any harm to the operation by traveling in the heat. You may want to wait fillers cooler weather for the sake of comfort.

There is still swelling in the abdominal area 8 weeks after a tummy tuck. Exercise and increased activity that occurs during travel will most certainly increase swelling. If you wear a good compression garment this should reduce the swelling.  Also wearing compression garments in hot climates can cause you to over heat and be very uncomfortable. Try a light weight garment. Prolonged swelling, prolongs recovery but should not cause any damage.  

Fluctuations in weight after an abdominoplasty would not be unusual.  Travel could certainly cause these variations and I would not be too concerned about it.  

Based on your profession, I am sure you can understand that specific adbvice would require in-person examination. However, unless you have developed a late seroma, it is  unlikely that any “damage” has occurred.  If you are traveling with or have access to a physician, physical examination may be helpful.

 Best wishes.

Whenever you go to a warm or tropical climate, you are more likely to retain water, particularly if you consume alcoholic beverages or salt-laden food.  Try to cut back on the salt and liquor and remember that a long flight will also cause fluid retention.  I would not consider this to be related to your abdominoplasty without additional information.