Best Time to See Great Blue Herons in California
January, April and May is the best time to see great blue herons in California. Based on 63,332 verified iNaturalist observations, here is exactly when great blue herons 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.
Great Blue Heron · mostbittern CC BY
Great Blue Heron · Jonathan Eisen CC BY
Great Blue Heron · Brooke J. CC BY
63,332 verified observations of great blue herons in California, recorded across 12 months of the year on iNaturalist.
When great blue herons are recorded in California
Peak month
January
6,175 records (9.8% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 6,175 | 9.8% |
| February | 4,993 | 7.9% |
| March | 5,088 | 8% |
| Aprilpeak | 5,945 | 9.4% |
| Maypeak | 5,846 | 9.2% |
| June | 5,353 | 8.5% |
| July | 4,694 | 7.4% |
| August | 4,182 | 6.6% |
| September | 4,812 | 7.6% |
| October | 5,070 | 8% |
| November | 5,417 | 8.6% |
| December | 5,757 | 9.1% |
Great Blue Herons you are most likely to see
| Species | Verified observations |
|---|---|
| Great Blue Heron | 63,332 |
Weather to expect, source Open-Meteo
Typical weather in California
Recent typical conditions by month, so you can plan a trip around both when great blue herons are active and what the weather is doing. The best months to look for great blue herons sit around 31 to 73 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Janbest time | 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" |
| Jun | 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 great blue herons in California peak in January, when 6,175 of the year's 63,332 verified observations are logged — about 9.8% of the annual total. Activity stays high through January, April and May.
The quietest stretch is August, July and September, when great blue herons are hardest to find — August sees just 4,182 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The great blue herons you are most likely to encounter in California are Great Blue Heron — 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 great blue herons 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 great blue herons in California?+
January is the single best month, and the broader peak window runs through January, April and May, based on 63,332 verified iNaturalist observations.
When are great blue herons hardest to see in California?+
August is the quietest month for great blue herons in California, with only 4,182 verified records.
Are great blue herons active year-round in California?+
Great blue herons are recorded in 12 of 12 months in California, so they can be seen year-round, with a clear peak in January.
More wildlife in California