Best Time to See Snakes in Oregon

May, June and April is the best time to see snakes in Oregon. Based on 33,837 verified iNaturalist observations, here is exactly when snakes are most active across the year in Oregon.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 30, 2026.

Red-spotted Garter Snake photographed in OregonCalifornia Mountain Kingsnake photographed in OregonNorthwestern Ringneck Snake photographed in Oregon
Photos by iNaturalist observers, used under Creative Commons.
Best months: May, June, April

33,837 verified observations of snakes in Oregon, recorded across 12 months of the year on iNaturalist.

When snakes are recorded in Oregon

Peak month

May

7,824 records (23.1% of the year)

Quietest month

December

191 records

MonthObservationsShare
January2770.8%
February5021.5%
March2,2426.6%
Aprilpeak4,32512.8%
Maypeak7,82423.1%
Junepeak6,42619%
July3,83011.3%
August3,3219.8%
September2,9218.6%
October1,5974.7%
November3811.1%
December1910.6%

Snakes you are most likely to see

SpeciesVerified observations
Western Fence Lizard7,086
Northwestern Garter Snake6,070
Common Garter Snake5,512
Gopher Snake3,440
Northern Alligator Lizard1,295
Western Rattlesnake1,162
Northern Rubber Boa1,100
Southern Alligator Lizard1,083

Sightings of snakes in Oregon peak in May, when 7,824 of the year's 33,837 verified observations are logged — about 23.1% of the annual total. Activity stays high through May, June and April.

The quietest stretch is December and January, when snakes are hardest to find — December sees just 191 records. If a reliable sighting matters, plan around the peak window rather than the off-season.

The snakes you are most likely to encounter in Oregon are Western Fence Lizard, Northwestern Garter Snake and Common Garter Snake — 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 snakes in Oregon

  • Crater Lake National ParkNational Park
  • Fort Vancouver National Historic SiteNational Historic Site
  • Lewis & Clark National Historic TrailNational Historic Trail
  • Lewis and Clark National Historical ParkNational Historical Park
  • Nez Perce National Historical ParkNational Historical Park
  • Oregon Caves National Monument & PreserveNational Monument & Preserve
Plan your tripCrater Lake National Park

Plan your snake trip in Oregon

Start with live tours near Crater Lake National Park, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Gear to see them

Frequently asked questions

What is the best month to see snakes in Oregon?+

May is the single best month, and the broader peak window runs through May, June and April, based on 33,837 verified iNaturalist observations.

When are snakes hardest to see in Oregon?+

December is the quietest month for snakes in Oregon, with only 191 verified records.

Are snakes active year-round in Oregon?+

Snakes are recorded in 12 of 12 months in Oregon, so they can be seen year-round, with a clear peak in May.