Best Time to See Mallards in Delaware
May, April and June is the best time to see mallards in Delaware. Based on 1,135 verified iNaturalist observations, here is exactly when mallards are most active across the year in Delaware.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
1,135 verified observations of mallards in Delaware, recorded across 12 months of the year on iNaturalist.
When mallards are recorded in Delaware
Peak month
May
147 records (13% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 111 | 9.8% |
| February | 84 | 7.4% |
| March | 128 | 11.3% |
| Aprilpeak | 142 | 12.5% |
| Maypeak | 147 | 13% |
| Junepeak | 131 | 11.5% |
| July | 76 | 6.7% |
| August | 53 | 4.7% |
| September | 57 | 5% |
| October | 71 | 6.3% |
| November | 81 | 7.1% |
| December | 54 | 4.8% |
Mallards you are most likely to see
| Species | Verified observations |
|---|---|
| Mallard | 1,135 |
Weather to expect, source Open-Meteo
Typical weather in Delaware
Recent typical conditions by month, so you can plan a trip around both when mallards are active and what the weather is doing. The best months to look for mallards sit around 48 to 79 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 44°F | 32°F | 2.9" |
| Feb | 47°F | 33°F | 3.8" |
| Mar | 54°F | 39°F | 3.8" |
| Aprbest time | 63°F | 48°F | 4.5" |
| Maybest time | 70°F | 56°F | 3.9" |
| Junbest time | 79°F | 66°F | 3.9" |
| Jul | 86°F | 73°F | 6" |
| Aug | 83°F | 72°F | 5.1" |
| Sep | 77°F | 65°F | 4.3" |
| Oct | 68°F | 55°F | 4.4" |
| Nov | 56°F | 43°F | 2.8" |
| Dec | 48°F | 36°F | 4.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Delaware. Weather varies year to year, so treat these as a guide.
Sightings of mallards in Delaware peak in May, when 147 of the year's 1,135 verified observations are logged — about 13% of the annual total. Activity stays high through May, April and June.
The quietest stretch is August, December and September, when mallards are hardest to find — August sees just 53 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The mallards you are most likely to encounter in Delaware are Mallard — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see mallards in Delaware
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake Bay
- First State National Historical Park — National Historical Park
- Washington-Rochambeau Revolutionary Route National Historic Trail — National Historic Trail
- Cape Henlopen State Park
- Bombay Hook National Wildlife Refuge
Frequently asked questions
What is the best month to see mallards in Delaware?+
May is the single best month, and the broader peak window runs through May, April and June, based on 1,135 verified iNaturalist observations.
When are mallards hardest to see in Delaware?+
August is the quietest month for mallards in Delaware, with only 53 verified records.
Are mallards active year-round in Delaware?+
Mallards are recorded in 12 of 12 months in Delaware, so they can be seen year-round, with a clear peak in May.
More wildlife in Delaware