Best Time to See Tarantulas in California
October, September and August is the best time to see tarantulas in California. Based on 11,967 verified iNaturalist observations, here is exactly when tarantulas are most active across the year in California.
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
11,967 verified observations of tarantulas in California, recorded across 12 months of the year on iNaturalist.
When tarantulas are recorded in California
Peak month
October
2,802 records (23.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 184 | 1.5% |
| February | 127 | 1.1% |
| March | 236 | 2% |
| April | 431 | 3.6% |
| May | 521 | 4.4% |
| June | 472 | 3.9% |
| July | 1,098 | 9.2% |
| Augustpeak | 1,663 | 13.9% |
| Septemberpeak | 2,787 | 23.3% |
| Octoberpeak | 2,802 | 23.4% |
| November | 1,293 | 10.8% |
| December | 353 | 2.9% |
Tarantulas you are most likely to see
| Species | Verified observations |
|---|---|
| Desert Tarantula | 3,800 |
| California Ebony Tarantula | 2,171 |
| Steindachner's Ebony Tarantula | 2,105 |
| Johnny Cash Tarantula | 555 |
| Cahuilla Ebony Tarantula | 69 |
| Mojave Dwarf Tarantula | 40 |
| Aphonopelma icenoglei | 33 |
| Aphonopelma joshua | 23 |
Weather to expect, source Open-Meteo
Typical weather in California
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 46 to 93 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 53°F | 31°F | 5.6" |
| Feb | 53°F | 30°F | 4.4" |
| Mar | 55°F | 33°F | 7.3" |
| Apr | 66°F | 40°F | 1.8" |
| May | 73°F | 46°F | 1.6" |
| Jun | 84°F | 55°F | 0.2" |
| Jul | 94°F | 62°F | 0" |
| Augbest time | 93°F | 62°F | 0.3" |
| Sepbest time | 85°F | 57°F | 0.8" |
| Octbest time | 73°F | 46°F | 1.2" |
| Nov | 61°F | 36°F | 2.3" |
| Dec | 53°F | 33°F | 7.8" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for California. Weather varies year to year, so treat these as a guide.
Sightings of tarantulas in California peak in October, when 2,802 of the year's 11,967 verified observations are logged — about 23.4% of the annual total. Activity stays high through October, September and August.
The quietest stretch is February and January, when tarantulas are hardest to find — February sees just 127 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The tarantulas you are most likely to encounter in California are Desert Tarantula, California Ebony Tarantula and Steindachner's Ebony Tarantula — 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 California
- Alcatraz Island
- Cabrillo National Monument — National Monument
- Channel Islands National Park — National Park
- Death Valley National Park — National Park
- Devils Postpile National Monument — National Monument
- Golden Gate National Recreation Area — National Recreation Area
Frequently asked questions
What is the best month to see tarantulas in California?+
October is the single best month, and the broader peak window runs through October, September and August, based on 11,967 verified iNaturalist observations.
When are tarantulas hardest to see in California?+
February is the quietest month for tarantulas in California, with only 127 verified records.
Are tarantulas active year-round in California?+
Tarantulas are recorded in 12 of 12 months in California, so they can be seen year-round, with a clear peak in October.
More wildlife in California