Orca Season in Tromsø
Orcas follow a predictable seasonal pattern in Tromsø, driven by herring migration.
Seasonal Timeline
| Month | Orca Activity |
|---|---|
| October | First arrivals, scouting |
| November | Building numbers |
| December | Peak population |
| January | Maximum activity |
| February | Still strong |
| March | Departing north |
Why They Come
Orcas follow Norwegian spring-spawning herring. Each winter, massive herring schools move into Tromsø fjords to overwinter, attracting orcas from Iceland and the open Atlantic.
Peak Season: December-January
During peak season expect:
- Multiple pods (50-200+ individuals)
- Active hunting behavior
- Carousel feeding displays
- Close encounters possible
What Affects Their Timing
- Herring migration - Primary factor
- Water temperature - Herring prefer specific conditions
- Climate changes - Patterns shifting slightly
- Food availability - Follows prey
Historical Patterns
Orcas have visited Tromsø fjords for decades, though their specific locations change year to year depending on where herring concentrate.
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