Duck eggs take about 28 days to hatch at 99.5°F (37.5°C) in a forced-air incubator, with 55 to 60% humidity until lockdown and 70 to 75% humidity for the final three days. Muscovy duck eggs take about 35 days. This guide gives you the full duck egg incubation chart, the day-by-day schedule, when to candle and when to stop turning, and how to fix common hatching problems. It is written for beginners and small poultry keepers who want better hatch results at home.
Many duck eggs fail to hatch because of poor control. The wrong heat or too little moisture can stop growth, while careful settings keep the duckling alive inside the egg and improve both hatch rate and chick strength.
How Long Do Duck Eggs Take to Hatch?
Most domestic duck eggs hatch in 28 days. Count from the day you set the eggs in the incubator. Incubation time depends on the breed:
| Duck type | Incubation time | Start lockdown on day |
|---|---|---|
| Pekin, Mallard, Rouen, Khaki Campbell, Indian Runner | About 28 days | 25 |
| Muscovy | About 35 days | 32 |
Eggs can hatch a day or two early or late, especially if the temperature ran slightly high or low. Don't give up on eggs the moment day 28 passes. Signs that hatching is close include small cracks (pips) in the shell, peeping sounds from inside, and eggs that rock slightly as the duckling moves.
Understanding Duck Egg Incubation
Duck egg incubation differs from chicken egg incubation in several ways. Duck eggs are larger, have a thicker shell and need more humidity, especially at hatching. They also take longer: 28 days instead of 21. See our egg incubator temperature chart for chicken, duck, quail and reptile eggs to compare species.
You can't tell by looking whether a duck egg is fertile before incubation, so candling around day 7 is how you check (see below). Beginners often make mistakes such as setting eggs in a cold room, not turning them, or letting the humidity run too low. Knowing the basics helps you avoid those problems and raise healthy ducklings.
How to Incubate Duck Eggs Successfully
Choose good eggs. Pick eggs that are clean, smooth and uncracked. Avoid very large or very small eggs, which are less likely to hatch.
Store them properly. Keep eggs in a cool place around 55 to 60°F with the pointed end down. Try to set them within about a week, since hatch rates drop as eggs get older. Don't shake or drop them.
Set the eggs. Make sure the incubator is clean and running at a steady temperature before you add eggs. Place the eggs with the pointed end down, or on their sides if you use an automatic turner, and leave space so air reaches every egg.
Turn the eggs. Turn them at least three times a day, or let an automatic egg turner do it. Stop turning when you start lockdown, three days before hatch (day 25 for most ducks). This lets the duckling settle into the correct hatching position.
Duck Egg Incubation Temperature and Humidity
Temperature and humidity are the most important factors in duck egg incubation. Eggs need the right warmth and moisture to develop. Too much or too little can stop growth or kill the duckling. For more on managing moisture, see our guide to maintaining humidity in an incubator.
Ideal Temperature for Duck Egg Incubation
- The best temperature for duck eggs is 99.5°F in a forced-air incubator, which uses a fan to spread heat evenly.
- In a still-air incubator, which has no fan and can have hot and cool spots, eggs usually need slightly higher heat, about 100 to 100.5°F.
If the temperature is too low: embryos grow slowly and some may die before hatching.
If the temperature is too high: it can cause deformities and may kill the duckling.
A steady temperature matters more than chasing a perfect number, so avoid opening the incubator more than you need to.
What Humidity Should Duck Eggs Be Incubated At?
- Normal incubation humidity (day 1 to lockdown): 55 to 60%
- Lockdown humidity (last 3 days): 70 to 75%
- Check it every day with a hygrometer, and compare it against a second one if you can.
Too little humidity: the membrane dries out, and the duckling can get stuck and fail to hatch.
Too much humidity: the air cell stays too small, and the duckling can drown inside the egg.
Waterfowl eggs need more moisture than chicken eggs. If you struggle to keep humidity steady, read do you need humidity control in an incubator?.
Duck Egg Incubation Chart (Day-by-Day Guide)
This chart shows the main steps for a 28-day duck egg incubation, for a forced-air incubator. For Muscovy eggs, add seven days and start lockdown on day 32.
| Days | Temperature (°F) | Humidity (%) | Actions |
|---|---|---|---|
| 1 to 7 | 99.5 | 55 to 60 | Turn eggs at least 3 times a day. Keep the incubator closed. Candle on day 7. |
| 8 to 14 | 99.5 | 55 to 60 | Keep turning. Candle on day 14 and remove any eggs that have stopped developing. |
| 15 to 24 | 99.5 | 55 to 60 | Keep turning and keep humidity steady. Check the water level. |
| 25 to 27 (lockdown) | 99.5 | 70 to 75 | Candle on day 25, then stop turning, raise humidity and don't open the incubator. |
| 28 (hatch) | 99.5 | 70 to 75 | Ducklings pip and hatch. Hatching can take a day or two. |
Incubating Duck Eggs Humidity Tips
- Keep humidity stable: Check the incubator often and avoid opening it more than necessary.
- Use water channels, trays or sponges: Add water to troughs, or place a shallow container or wet sponge inside, and refill as needed.
- Monitor with a hygrometer: Check it daily to make sure it stays in range.
- Avoid humidity swings: Rapid changes can harm a developing duckling, so adjust in small steps.
Duck Egg Development Stages and Candling Schedule
Candling means shining a bright light through the egg to see what is happening inside. An egg candler works well, and our egg candling guide explains the technique. For duck eggs, candle on day 7, day 14 and day 25.
- Day 7: you should see a network of blood vessels spreading from a small dark spot, which is the embryo. An infertile egg stays clear. A dark ring or streak of blood usually means the embryo died early.
- Day 14: the egg looks darker as the duckling grows, and the air cell at the blunt end is easy to see. Remove eggs that are still clear or show no movement or growth.
- Day 25: the egg is mostly dark with a clearly defined air cell. This is your last look before lockdown, so remove any eggs that have stopped developing, then stop turning and raise the humidity.
- Days 26 to 28: leave the incubator closed. You may see or hear the duckling move. It will then pip the air cell and break out of the shell.
Once a duckling has pipped, hatching can take 24 hours or more, so be patient and resist the urge to help it out of the shell.
Incubating Duck Eggs at Home
You can incubate duck eggs safely at home with careful preparation.
- Home incubator setup: place the incubator on a flat surface away from drafts, direct sun and heating vents, and make sure it is clean and working.
- Room temperature control: keep the room warm and steady, and avoid very cold or hot areas.
- Power backup planning: a long power outage can harm the eggs, so keep a backup power source or insulate and monitor the incubator closely.
- Hygiene and safety: wash your hands before handling eggs, and clean the incubator before and after each hatch to reduce the risk of bacterial infection.
Looking for equipment? The IncuView 3 Pro includes an automatic turner and handles duck eggs, and the ChickBator 3100 holds up to 50 chicken or duck eggs without a turner.
Common Duck Egg Incubation Problems and Solutions
- Eggs not developing: eggs may not grow if they are infertile, too old, or exposed to the wrong temperature or humidity. Candle early and keep settings steady.
- Late or delayed hatching: some eggs hatch a day or two late, especially if the temperature ran slightly low. Be patient and don't open the incubator more than necessary.
- Sticky ducklings: if humidity was too low, ducklings may stick to the shell. Keep humidity steady and the incubator closed during lockdown.
- Ducklings that can't break out: a dry, tough membrane usually means humidity was too low. Check your hygrometer and refill water before the next set.
- Low hatch rate: common causes include poor egg handling, sudden changes in temperature or humidity and old eggs. Handle eggs gently and follow the schedule.
Final Thoughts on Duck Egg Incubation
Duck egg incubation can seem tricky at first, but it is simple with the right care. Follow the temperature, humidity and day-by-day steps above, and you will give your eggs the best chance of hatching. Mistakes happen, and each hatch teaches you something new.
FAQs (People Also Ask)
Q: How long does duck egg incubation take?
Ans: Most domestic duck eggs hatch in about 28 days. Muscovy duck eggs take about 35 days.
Q: What temperature incubates duck eggs best?
Ans: The best temperature in a forced-air incubator is 99.5°F. In a still-air incubator, keep it slightly higher, at about 100 to 100.5°F. Temperatures that are too low or too high can harm the embryo.
Q: What humidity should duck eggs be incubated at?
Ans: Keep humidity at 55 to 60% for most of incubation, then raise it to 70 to 75% for the last three days (lockdown). Low humidity can dry out the membrane, and high humidity can keep the air cell too small.
Q: When should I stop turning duck eggs?
Ans: Stop turning at lockdown, three days before hatch. For a 28-day egg, that is day 25.
Q: When should I candle duck eggs?
Ans: Candle on day 7, day 14 and day 25. Remove any eggs that are clear or have stopped developing.
Q: Can duck eggs hatch in a chicken incubator?
Ans: Yes. Adjust for the longer 28-day schedule and higher humidity, check how many duck eggs the incubator holds since they are larger than chicken eggs, and leave enough space for air to reach each egg.
Q: Can you incubate duck eggs at home?
Ans: Yes. You need a reliable incubator, a steady room temperature and careful monitoring of turning, temperature and humidity. Keep everything clean to prevent infection.
Q: How long can ducklings stay in the incubator after hatching?
Ans: Leave them until they are dry and fluffy, usually within about 24 hours, then move them to a warm brooder.
Q: Why did my duck eggs not hatch?
Ans: Eggs may be infertile, handled poorly, stored too long, or exposed to the wrong temperature or humidity. Consistent care and regular candling help you spot problems early.