Best Time to See Cottonmouths in Mississippi
April, May and July is the best time to see cottonmouths in Mississippi. Based on 1,003 verified iNaturalist observations, here is exactly when cottonmouths are most active across the year in Mississippi.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
Northern Cottonmouth · kirk gardner CC BY
Northern Cottonmouth · Mila Turov CC BY
Northern Cottonmouth · Joshua Liverman CC BY
1,003 verified observations of cottonmouths in Mississippi, recorded across 12 months of the year on iNaturalist.
When cottonmouths are recorded in Mississippi
Peak month
April
155 records (15.5% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 16 | 1.6% |
| February | 25 | 2.5% |
| March | 91 | 9.1% |
| Aprilpeak | 155 | 15.5% |
| Maypeak | 155 | 15.5% |
| June | 114 | 11.4% |
| Julypeak | 115 | 11.5% |
| August | 82 | 8.2% |
| September | 110 | 11% |
| October | 89 | 8.9% |
| November | 36 | 3.6% |
| December | 15 | 1.5% |
Cottonmouths you are most likely to see
| Species | Verified observations |
|---|---|
| Northern Cottonmouth | 1,003 |
Weather to expect, source Open-Meteo
Typical weather in Mississippi
Recent typical conditions by month, so you can plan a trip around both when cottonmouths are active and what the weather is doing. The best months to look for cottonmouths sit around 54 to 90 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 57°F | 40°F | 6" |
| Feb | 61°F | 42°F | 6.7" |
| Mar | 69°F | 49°F | 5.4" |
| Aprbest time | 74°F | 54°F | 7.5" |
| Maybest time | 82°F | 63°F | 4.9" |
| Jun | 89°F | 70°F | 4.5" |
| Julbest time | 90°F | 74°F | 6" |
| Aug | 90°F | 74°F | 5.7" |
| Sep | 88°F | 69°F | 2.8" |
| Oct | 77°F | 58°F | 4.3" |
| Nov | 66°F | 46°F | 2.9" |
| Dec | 61°F | 44°F | 5.6" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Mississippi. Weather varies year to year, so treat these as a guide.
Sightings of cottonmouths in Mississippi peak in April, when 155 of the year's 1,003 verified observations are logged — about 15.5% of the annual total. Activity stays high through April, May and July.
The quietest stretch is December and January, when cottonmouths are hardest to find — December sees just 15 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The cottonmouths you are most likely to encounter in Mississippi are Northern Cottonmouth — 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 cottonmouths in Mississippi
- Gulf Islands National Seashore — National Seashore
- Natchez Trace Parkway — Parkway
- Shiloh National Military Park — National Military Park
- Brices Cross Roads National Battlefield Site — National Battlefield Site
- Emmett Till and Mamie Till-Mobley National Monument — National Monument
- Medgar and Myrlie Evers Home National Monument — National Monument
Frequently asked questions
What is the best month to see cottonmouths in Mississippi?+
April is the single best month, and the broader peak window runs through April, May and July, based on 1,003 verified iNaturalist observations.
When are cottonmouths hardest to see in Mississippi?+
December is the quietest month for cottonmouths in Mississippi, with only 15 verified records.
Are cottonmouths active year-round in Mississippi?+
Cottonmouths are recorded in 12 of 12 months in Mississippi, so they can be seen year-round, with a clear peak in April.
More places to see cottonmouths
More wildlife in Mississippi