Best Time to See Jellyfishes in Virginia
July, August and June is the best time to see jellyfishes in Virginia. Based on 1,105 verified iNaturalist observations, here is exactly when jellyfishes are most active across the year in Virginia.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Dwarf Lion's Mane Jelly · Jennifer Kepler CC BY
Mushroom Jelly · Clay Gibbons CC BY
Cannonball Jelly · Kathy Richardson CC BY
1,105 verified observations of jellyfishes in Virginia, recorded across 12 months of the year on iNaturalist.
When jellyfishes are recorded in Virginia
Peak month
July
312 records (28.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 38 | 3.4% |
| February | 50 | 4.5% |
| March | 81 | 7.3% |
| April | 66 | 6% |
| May | 43 | 3.9% |
| Junepeak | 87 | 7.9% |
| Julypeak | 312 | 28.2% |
| Augustpeak | 199 | 18% |
| September | 86 | 7.8% |
| October | 27 | 2.4% |
| November | 52 | 4.7% |
| December | 64 | 5.8% |
Jellyfishes you are most likely to see
| Species | Verified observations |
|---|---|
| Bay Nettle | 282 |
| Mushroom Jelly | 107 |
| Dwarf Lion's Mane Jelly | 104 |
| Atlantic Lion's Mane Jelly | 86 |
| Common Moon Jelly | 65 |
| Cannonball Jelly | 52 |
| Southern Moon Jelly | 42 |
| Atlantic Sea Nettle | 16 |
Weather to expect, source Open-Meteo
Typical weather in Virginia
Recent typical conditions by month, so you can plan a trip around both when jellyfishes are active and what the weather is doing. The best months to look for jellyfishes sit around 64 to 92 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 47°F | 30°F | 3.2" |
| Feb | 52°F | 33°F | 4" |
| Mar | 60°F | 39°F | 3" |
| Apr | 70°F | 46°F | 3.9" |
| May | 77°F | 56°F | 3.5" |
| Junbest time | 86°F | 64°F | 3.1" |
| Julbest time | 92°F | 70°F | 3.2" |
| Augbest time | 88°F | 68°F | 3.8" |
| Sep | 82°F | 62°F | 2.9" |
| Oct | 71°F | 52°F | 3.6" |
| Nov | 59°F | 39°F | 3.1" |
| Dec | 52°F | 34°F | 4" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Virginia. Weather varies year to year, so treat these as a guide.
Sightings of jellyfishes in Virginia peak in July, when 312 of the year's 1,105 verified observations are logged — about 28.2% of the annual total. Activity stays high through July, August and June.
The quietest stretch is October and January, when jellyfishes are hardest to find — October sees just 27 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The jellyfishes you are most likely to encounter in Virginia are Bay Nettle, Mushroom Jelly and Dwarf Lion's Mane Jelly — 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 jellyfishes in Virginia
- Appalachian National Scenic Trail — National Scenic Trail
- Appomattox Court House National Historical Park — National Historical Park
- Assateague Island National Seashore — National Seashore
- Blue Ridge Parkway — Parkway
- Captain John Smith Chesapeake National Historic Trail — National Historic Trail
- Chesapeake Bay
Frequently asked questions
What is the best month to see jellyfishes in Virginia?+
July is the single best month, and the broader peak window runs through July, August and June, based on 1,105 verified iNaturalist observations.
When are jellyfishes hardest to see in Virginia?+
October is the quietest month for jellyfishes in Virginia, with only 27 verified records.
Are jellyfishes active year-round in Virginia?+
Jellyfishes are recorded in 12 of 12 months in Virginia, so they can be seen year-round, with a clear peak in July.
More places to see jellyfishes
More wildlife in Virginia