Best Time to See Sea Lions in Oregon
March, August and May is the best time to see sea lions in Oregon. Based on 2,532 verified iNaturalist observations, here is exactly when sea lions are most active across the year in Oregon.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Steller Sea Lion · Daniel Patterson CC BY
Steller Sea Lion · Oscar Dove CC BY
Eastern Steller Sea Lion · Lee Cain CC BY
2,532 verified observations of sea lions in Oregon, recorded across 12 months of the year on iNaturalist.
When sea lions are recorded in Oregon
Peak month
March
310 records (12.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 118 | 4.7% |
| February | 145 | 5.7% |
| Marchpeak | 310 | 12.2% |
| April | 238 | 9.4% |
| Maypeak | 265 | 10.5% |
| June | 261 | 10.3% |
| July | 198 | 7.8% |
| Augustpeak | 291 | 11.5% |
| September | 228 | 9% |
| October | 186 | 7.3% |
| November | 155 | 6.1% |
| December | 137 | 5.4% |
Sea Lions you are most likely to see
| Species | Verified observations |
|---|---|
| California Sea Lion | 1,563 |
| Steller Sea Lion | 793 |
| Guadalupe Fur Seal | 21 |
| Northern Fur Seal | 10 |
Weather to expect, source Open-Meteo
Typical weather in Oregon
Recent typical conditions by month, so you can plan a trip around both when sea lions are active and what the weather is doing. The best months to look for sea lions sit around 25 to 81 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 39°F | 26°F | 2" |
| Feb | 38°F | 22°F | 2.4" |
| Marbest time | 43°F | 25°F | 1.9" |
| Apr | 52°F | 32°F | 2.2" |
| Maybest time | 61°F | 40°F | 2" |
| Jun | 71°F | 48°F | 1.1" |
| Jul | 83°F | 56°F | 0.1" |
| Augbest time | 81°F | 56°F | 0.4" |
| Sep | 71°F | 47°F | 1.2" |
| Oct | 58°F | 37°F | 1.2" |
| Nov | 45°F | 28°F | 2.3" |
| Dec | 37°F | 25°F | 2.4" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Oregon. Weather varies year to year, so treat these as a guide.
More on sea lions in Oregon:
Sightings of sea lions in Oregon peak in March, when 310 of the year's 2,532 verified observations are logged — about 12.2% of the annual total. Activity stays high through March, August and May.
The quietest stretch is January, December and February, when sea lions are hardest to find — January sees just 118 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The sea lions you are most likely to encounter in Oregon are California Sea Lion, Steller Sea Lion and Guadalupe Fur Seal — 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 sea lions in Oregon
- Crater Lake National Park — National Park
- Fort Vancouver National Historic Site — National Historic Site
- Lewis & Clark National Historic Trail — National Historic Trail
- Lewis and Clark National Historical Park — National Historical Park
- Nez Perce National Historical Park — National Historical Park
- Oregon Caves National Monument & Preserve — National Monument & Preserve
Frequently asked questions
What is the best month to see sea lions in Oregon?+
March is the single best month, and the broader peak window runs through March, August and May, based on 2,532 verified iNaturalist observations.
When are sea lions hardest to see in Oregon?+
January is the quietest month for sea lions in Oregon, with only 118 verified records.
Are sea lions active year-round in Oregon?+
Sea lions are recorded in 12 of 12 months in Oregon, so they can be seen year-round, with a clear peak in March.
More places to see sea lions
More wildlife in Oregon