Bees in California in March

Yes, March is a good month to see bees in California. It is the 5th busiest month of the year, with 36,163 of the 402,242 sightings logged across the year (9%), based on verified iNaturalist records.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Silver-tailed Petalcutter photographed in CaliforniaAnthophora hololeuca photographed in CaliforniaValley Carpenter Bee photographed in California
Photos by iNaturalist observers, used under Creative Commons.

Good month for bees in California

9%

of yearly sightings

36,163

records in March

#5

busiest month of 12

402,242

verified records a year

February 3.3%, March 9%, April 17.8%. Busiest month is May at 18.4%.

Best months: May, April, June

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)

Quietest month

December

5,187 records

MonthObservationsShare
January7,1981.8%
February13,4003.3%
March36,1639%
Aprilpeak71,40617.8%
Maypeak73,98118.4%
Junepeak65,35416.2%
July47,26811.8%
August34,0048.5%
September24,4026.1%
October15,8863.9%
November7,9932%
December5,1871.3%

Bees you are most likely to see

SpeciesVerified observations
Western Honey Bee90,989
Yellow-faced Bumble Bee33,342
Black-tailed Bumble Bee13,135
Valley Carpenter Bee12,275
Horse-fly Carpenter Bee8,900
Tripartite Sweat Bee7,733
Fine striped sweat bee6,112
California Bumble Bee6,078

In California, March carries 9% of the year's bees sightings, about 0.7 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.

Activity is rising from February (3.3%) into March, and it heads toward April (17.8%) after. The busiest month is May (18.4%), so if timing is flexible, that window is the safer bet.

The bees most often recorded in California are Western Honey Bee, Yellow-faced Bumble Bee and Black-tailed Bumble Bee. Those counts are annual totals rather than a March split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in March itself.

Which bees you are most likely to see

  • Western Honey Bee90,989 records
  • Yellow-faced Bumble Bee33,342 records
  • Black-tailed Bumble Bee13,135 records
  • Valley Carpenter Bee12,275 records
  • Horse-fly Carpenter Bee8,900 records
  • Tripartite Sweat Bee7,733 records
Plan your tripAlcatraz Island

Plan your bee trip in California

Start with live tours near Alcatraz Island, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see bees in California in March?+

Yes. March accounts for 36,163 of the 402,242 verified bees sightings logged in California across the year, which is 9% of the annual total.

Is March a good time to see bees in California?+

March is the 5th busiest month. It is workable, though May and April is the stronger window for a reliable sighting.

What month is best for bees in California?+

May is the single busiest month, with the broader peak running through May, April and June, based on 402,242 verified observations.

Which bees are you most likely to see in California?+

The most-recorded species in California are Western Honey Bee, Yellow-faced Bumble Bee and Black-tailed Bumble Bee, based on all-time iNaturalist counts.