Best Time to See Bold Jumping Spiders in California
May, April and June is the best time to see bold jumping spiders in California. Based on 13,691 verified iNaturalist observations, here is exactly when bold jumping spiders 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 20, 2026.
Bold Jumping Spider · Public domain CC0
Bold Jumping Spider · Odalys R. CC BY
Bold Jumping Spider · Sarah DiGiorgio CC BY
13,691 verified observations of bold jumping spiders in California, recorded across 12 months of the year on iNaturalist.
When bold jumping spiders are recorded in California
Peak month
May
2,492 records (18.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 164 | 1.2% |
| February | 416 | 3% |
| March | 1,140 | 8.3% |
| Aprilpeak | 2,214 | 16.2% |
| Maypeak | 2,492 | 18.2% |
| Junepeak | 1,756 | 12.8% |
| July | 1,061 | 7.7% |
| August | 759 | 5.5% |
| September | 1,263 | 9.2% |
| October | 1,708 | 12.5% |
| November | 603 | 4.4% |
| December | 115 | 0.8% |
Bold Jumping Spiders you are most likely to see
| Species | Verified observations |
|---|---|
| Bold Jumping Spider | 13,691 |
Weather to expect, source Open-Meteo
Typical weather in California
Recent typical conditions by month, so you can plan a trip around both when bold jumping spiders are active and what the weather is doing. The best months to look for bold jumping spiders sit around 40 to 84 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" |
| Aprbest time | 66°F | 40°F | 1.8" |
| Maybest time | 73°F | 46°F | 1.6" |
| Junbest time | 84°F | 55°F | 0.2" |
| Jul | 94°F | 62°F | 0" |
| Aug | 93°F | 62°F | 0.3" |
| Sep | 85°F | 57°F | 0.8" |
| Oct | 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 bold jumping spiders in California peak in May, when 2,492 of the year's 13,691 verified observations are logged — about 18.2% of the annual total. Activity stays high through May, April and June.
The quietest stretch is December and January, when bold jumping spiders are hardest to find — December sees just 115 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The bold jumping spiders you are most likely to encounter in California are Bold Jumping Spider — 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 bold jumping spiders 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 bold jumping spiders in California?+
May is the single best month, and the broader peak window runs through May, April and June, based on 13,691 verified iNaturalist observations.
When are bold jumping spiders hardest to see in California?+
December is the quietest month for bold jumping spiders in California, with only 115 verified records.
Are bold jumping spiders active year-round in California?+
Bold jumping spiders are recorded in 12 of 12 months in California, so they can be seen year-round, with a clear peak in May.
More wildlife in California