Best Time to See Bees in California
May, April and June is the best time to see bees in California. Based on 402,242 verified iNaturalist observations, here is exactly when bees 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 June 28, 2026.
Western Honey Bee · Public domain CC0
Conanthalictus mentzeliae · Trevor Van Loon CC BY
Urbane Digger Bee · velodrome CC BY
402,242 verified observations of bees in California, recorded across 12 months of the year on iNaturalist.
When bees are recorded in California
Peak month
May
73,981 records (18.4% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 7,198 | 1.8% |
| February | 13,400 | 3.3% |
| March | 36,163 | 9% |
| Aprilpeak | 71,406 | 17.8% |
| Maypeak | 73,981 | 18.4% |
| Junepeak | 65,354 | 16.2% |
| July | 47,268 | 11.8% |
| August | 34,004 | 8.5% |
| September | 24,402 | 6.1% |
| October | 15,886 | 3.9% |
| November | 7,993 | 2% |
| December | 5,187 | 1.3% |
Bees you are most likely to see
| Species | Verified observations |
|---|---|
| Western Honey Bee | 90,989 |
| Yellow-faced Bumble Bee | 33,342 |
| Black-tailed Bumble Bee | 13,135 |
| Valley Carpenter Bee | 12,275 |
| Horse-fly Carpenter Bee | 8,900 |
| Tripartite Sweat Bee | 7,733 |
| Fine striped sweat bee | 6,112 |
| California Bumble Bee | 6,078 |
Weather to expect, source Open-Meteo
Typical weather in California
Recent typical conditions by month, so you can plan a trip around both when bees are active and what the weather is doing. The best months to look for bees 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.
More on bees in California:
Sightings of bees in California peak in May, when 73,981 of the year's 402,242 verified observations are logged — about 18.4% of the annual total. Activity stays high through May, April and June.
The quietest stretch is December and January, when bees are hardest to find — December sees just 5,187 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The bees you are most likely to encounter in California are Western Honey Bee, Yellow-faced Bumble Bee and Black-tailed Bumble Bee — 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 bees 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 bees in California?+
May is the single best month, and the broader peak window runs through May, April and June, based on 402,242 verified iNaturalist observations.
When are bees hardest to see in California?+
December is the quietest month for bees in California, with only 5,187 verified records.
Are bees active year-round in California?+
Bees are recorded in 12 of 12 months in California, so they can be seen year-round, with a clear peak in May.
More places to see bees
More wildlife in California