Best Time to See Blue Whales in Oregon
August, June and November is the best time to see blue whales in Oregon. Based on 4 verified iNaturalist observations, here is exactly when blue whales 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 July 10, 2026.
4 verified observations of blue whales in Oregon, recorded across 3 months of the year on iNaturalist.
When blue whales are recorded in Oregon
Peak month
August
2 records (50% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| May | 0 | 0% |
| Junepeak | 1 | 25% |
| July | 0 | 0% |
| Augustpeak | 2 | 50% |
| September | 0 | 0% |
| October | 0 | 0% |
| Novemberpeak | 1 | 25% |
| December | 0 | 0% |
Blue Whales you are most likely to see
| Species | Verified observations |
|---|---|
| Blue Whale | 4 |
Weather to expect, source Open-Meteo
Typical weather in Oregon
Recent typical conditions by month, so you can plan a trip around both when blue whales are active and what the weather is doing. The best months to look for blue whales sit around 28 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" |
| Mar | 43°F | 25°F | 1.9" |
| Apr | 52°F | 32°F | 2.2" |
| May | 61°F | 40°F | 2" |
| Junbest time | 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" |
| Novbest time | 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 blue whales in Oregon:
Sightings of blue whales in Oregon peak in August, when 2 of the year's 4 verified observations are logged — about 50% of the annual total. Activity stays high through August, June and November.
The quietest stretch is January, February and March, when blue whales are hardest to find — no verified records exist for January. If a reliable sighting matters, plan around the peak window rather than the off-season.
The blue whales you are most likely to encounter in Oregon are Blue Whale — 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 blue whales 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 blue whales in Oregon?+
August is the single best month, and the broader peak window runs through August, June and November, based on 4 verified iNaturalist observations.
When are blue whales hardest to see in Oregon?+
January is the quietest month for blue whales in Oregon, with no verified records on iNaturalist.
Are blue whales active year-round in Oregon?+
Blue whales are recorded in 3 of 12 months in Oregon, concentrated around August and June.
More places to see blue whales
More wildlife in Oregon