How long to BBQ whole fish (whole snapper/barramundi)? Grill for 6-8 min/side at 180-200°C (350-400°F). Complete temperature guide in °C and °F with step-by-step instructions.
By Bill Ohaire | Published: April 2026 | Last Updated: April 2026
Photo by NGUYỄN THÀNH NHƠN on Pexels
BBQ Whole Snapper/Barramundi for 6-8 min/side over direct heat at 180-200°C (350-400°F). Internal temp: N/A. Rest for 5 min.
Here is everything you need to know about cooking whole fish (whole snapper/barramundi) on the BBQ. We cover direct grilling, indirect heat, and smoking times with temperatures in Celsius (and Fahrenheit) so you get perfect results every time.
| Method | Temperature | Time |
|---|---|---|
| Direct Grilling | 180-200°C (350-400°F) | 6-8 min/side |
| Indirect Heat | 180-200°C (350-400°F) | 20-30 min at 180°C (350°F) |
Thickness: 500g-1kg whole | Rest time: 5 min
Use a calibrated digital meat thermometer for accuracy. Insert the probe into the thickest part of the meat, away from bone or fat pockets, which can give false readings.
| Doneness | Internal Temperature |
|---|---|
| Well Done | 63°C (145°F) — flesh flakes easily |
Whole muscle cuts of seafood are safe at 63°C (145°F) with a 3-minute rest, according to food safety authorities. Use a calibrated meat thermometer in the thickest part, away from bone.
Score the skin 3-4 times on each side. Stuff cavity with lemon, herbs, and garlic. Use a fish basket for easy flipping. Barramundi is the classic Aussie choice.
Temperature accuracy matters more than timing. Factors like wind, ambient temperature, grill type, and meat thickness all affect cook times. Always verify doneness with a thermometer rather than relying solely on the clock. — AmazingRibs.com
See how whole snapper/barramundi compares to other popular seafood cuts on the BBQ:
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Open CalculatorHow long do you BBQ whole fish?
Grill whole fish for 6-8 min/side over direct heat at 180-200°C (350-400°F). Always use a meat thermometer to check the internal temperature reaches N/A.
What temperature should whole fish be when cooked?
The safe internal temperature for whole fish is N/A. Use a digital meat thermometer inserted into the thickest part of the meat, away from any bone.
How long should whole fish rest after BBQ?
Rest whole fish for 5 min after removing from the BBQ. This allows the juices to redistribute throughout the meat, resulting in a juicier, more flavourful result. The internal temperature will continue to rise 2-3°C during this time.
Should I cook whole fish on high or low heat?
Cook whole fish over medium-high direct heat (180-200°C (350-400°F)) for the best sear and flavour.