Octopus in Hawaii in October

Yes, October is one of the best months to see octopus in Hawaii. It is the 1st busiest month of the year, with 156 of the 1,310 sightings logged across the year (11.9%), based on verified iNaturalist records.

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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 28, 2026.

Peak month for octopus in Hawaii

11.9%

of yearly sightings

156

records in October

#1

busiest month of 12

1,310

verified records a year

September 11.5%, October 11.9%, November 9.3%. Busiest month is October at 11.9%.

Best months: October, September, January

1,310 verified observations of octopus in Hawaii, recorded across 12 months of the year on iNaturalist.

When octopus are recorded in Hawaii

Peak month

October

156 records (11.9% of the year)

Quietest month

July

55 records

MonthObservationsShare
Januarypeak13410.2%
February1168.9%
March796%
April876.6%
May1118.5%
June1007.6%
July554.2%
August927%
Septemberpeak15011.5%
Octoberpeak15611.9%
November1229.3%
December1088.2%

Octopus you are most likely to see

SpeciesVerified observations
Day Octopus887
Ornate Night Octopus92
Starry Night Octopus22
Short-armed Sand Octopus21
Hawaiian Octopus9
Oliver's Octopus7
Thaumoctopus2
Indo-Pacific Violet Blanket Octopus2

In Hawaii, October carries 11.9% of the year's octopus sightings, about 3.6 points above an even month-to-month split. That makes it the 1st busiest of the twelve months, out of 12 months with recorded activity.

Activity holds steady between September and October, and it heads toward November (9.3%) after. This is right inside the peak window, so October is one of the surest months to plan a trip around.

The octopus most often recorded in Hawaii are Day Octopus, Ornate Night Octopus and Starry Night Octopus. Those counts are annual totals rather than a October split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in October itself.

Which octopus you are most likely to see

  • Day Octopus887 records
  • Ornate Night Octopus92 records
  • Starry Night Octopus22 records
  • Short-armed Sand Octopus21 records
  • Hawaiian Octopus9 records
  • Oliver's Octopus7 records
Plan your tripAla Kahakai National Historic Trail

Plan your octopus trip in Hawaii

Start with live tours near Ala Kahakai National Historic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see octopus in Hawaii in October?+

Yes. October accounts for 156 of the 1,310 verified octopus sightings logged in Hawaii across the year, which is 11.9% of the annual total.

Is October a good time to see octopus in Hawaii?+

October is one of the best months. It ranks 1st of the year and sits inside the peak window of October, September and January.

What month is best for octopus in Hawaii?+

October is the single busiest month, with the broader peak running through October, September and January, based on 1,310 verified observations.

Which octopus are you most likely to see in Hawaii?+

The most-recorded species in Hawaii are Day Octopus, Ornate Night Octopus and Starry Night Octopus, based on all-time iNaturalist counts.