Bats in Hawaii in May
Yes, May is a good month to see bats in Hawaii. It is the 4th busiest month of the year, with 7 of the 69 sightings logged across the year (10.1%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Good month for bats in Hawaii
10.1%
of yearly sightings
7
records in May
#4
busiest month of 12
69
verified records a year
April 5.8%, May 10.1%, June 0%. Busiest month is October at 37.7%.
69 verified observations of bats in Hawaii, recorded across 11 months of the year on iNaturalist.
When bats are recorded in Hawaii
Peak month
October
26 records (37.7% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 3 | 4.3% |
| February | 2 | 2.9% |
| March | 2 | 2.9% |
| April | 4 | 5.8% |
| May | 7 | 10.1% |
| June | 0 | 0% |
| July | 1 | 1.4% |
| August | 3 | 4.3% |
| September | 5 | 7.2% |
| Octoberpeak | 26 | 37.7% |
| Novemberpeak | 8 | 11.6% |
| Decemberpeak | 8 | 11.6% |
Bats you are most likely to see
| Species | Verified observations |
|---|---|
| Hawaiian Hoary Bat | 63 |
In Hawaii, May carries 10.1% of the year's bats sightings, about 1.8 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 11 months with recorded activity.
Activity is rising from April (5.8%) into May, and it heads toward June (0%) after. The busiest month is October (37.7%), so if timing is flexible, that window is the safer bet.
The bats most often recorded in Hawaii are Hawaiian Hoary Bat. Those counts are annual totals rather than a May split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in May itself.
Which bats you are most likely to see
- Hawaiian Hoary Bat63 records
Plan your bat 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.
GetYourGuide
Live tours nearbySee live tours near Ala Kahakai National Historic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main bat viewing area.
Booking.com
Stay nearbyStay near Ala Kahakai National Historic Trail
Compare hotels, cabins and lodges close to the best bat viewing area in Hawaii.
Viator
Broader backupBook a bat tour in Hawaii
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Gear to see them
Frequently asked questions
Can you see bats in Hawaii in May?+
Yes. May accounts for 7 of the 69 verified bats sightings logged in Hawaii across the year, which is 10.1% of the annual total.
Is May a good time to see bats in Hawaii?+
May is the 4th busiest month. It is workable, though October and November is the stronger window for a reliable sighting.
What month is best for bats in Hawaii?+
October is the single busiest month, with the broader peak running through October, November and December, based on 69 verified observations.
Which bats are you most likely to see in Hawaii?+
The most-recorded species in Hawaii are Hawaiian Hoary Bat, based on all-time iNaturalist counts.
See bats in Hawaii in other months
More places to see bats
More wildlife in Hawaii