Best Time to See Tarantulas in Idaho
November is the best time to see tarantulas in Idaho. Based on 1 verified iNaturalist observations, here is exactly when tarantulas are most active across the year in Idaho.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.

Desert Tarantula · 115527224325819725585 CC BY

Texas Brown Tarantula · Chris Stahl CC BY

Steindachner's Ebony Tarantula · Millie Basden CC BY
1 verified observations of tarantulas in Idaho, recorded across 1 months of the year on iNaturalist.
When tarantulas are recorded in Idaho
Peak month
November
1 records (100% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 0 | 0% |
| March | 0 | 0% |
| April | 0 | 0% |
| May | 0 | 0% |
| June | 0 | 0% |
| July | 0 | 0% |
| August | 0 | 0% |
| September | 0 | 0% |
| October | 0 | 0% |
| Novemberpeak | 1 | 100% |
| December | 0 | 0% |
Tarantulas you are most likely to see
| Species | Verified observations |
|---|---|
| Aphonopelma | 1 |
Weather to expect, source Open-Meteo
Typical weather in Idaho
Recent typical conditions by month, so you can plan a trip around both when tarantulas are active and what the weather is doing. The best months to look for tarantulas sit around 19 to 40 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 31°F | 13°F | 1.6" |
| Feb | 32°F | 14°F | 2.4" |
| Mar | 41°F | 20°F | 1.7" |
| Apr | 48°F | 25°F | 1.9" |
| May | 60°F | 35°F | 2.9" |
| Jun | 71°F | 44°F | 2.9" |
| Jul | 82°F | 51°F | 1.2" |
| Aug | 81°F | 51°F | 1.9" |
| Sep | 71°F | 43°F | 1.9" |
| Oct | 54°F | 29°F | 1.8" |
| Novbest time | 40°F | 19°F | 1.8" |
| Dec | 31°F | 13°F | 1.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Idaho. Weather varies year to year, so treat these as a guide.
Sightings of tarantulas in Idaho peak in November, when 1 of the year's 1 verified observations are logged — about 100% of the annual total.
The quietest stretch is January, February and March, when tarantulas 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 tarantulas you are most likely to encounter in Idaho are Aphonopelma — 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 tarantulas in Idaho
- City Of Rocks National Reserve — National Reserve
- Craters Of The Moon National Monument & Preserve — National Monument & Preserve
- Hagerman Fossil Beds National Monument — National Monument
- Lewis & Clark National Historic Trail — National Historic Trail
- Nez Perce National Historical Park — National Historical Park
- Yellowstone National Park — National Park
Frequently asked questions
What is the best month to see tarantulas in Idaho?+
November is the single best month, and the broader peak window runs through November, based on 1 verified iNaturalist observations.
When are tarantulas hardest to see in Idaho?+
January is the quietest month for tarantulas in Idaho, with no verified records on iNaturalist.
Are tarantulas active year-round in Idaho?+
Tarantulas are recorded in 1 of 12 months in Idaho, concentrated around November.
More places to see tarantulas
More wildlife in Idaho