Summary at a glance
Alcatraz Island is listed as an Island in the checked-in NPS identity snapshot. 4 source cards on this page. Data snapshot: October 27, 2026. Listed month windows: April, May, and October.
Month-by-month
Month windows on this page: April, May, and October listed as the primary window; July, August, and June listed as peak months; October, April, and May listed as lower-crowd months.
Primary Window
Listed primary window: April, May, and October.
Peak months
Listed peak months: July, August, and June.
Lower-crowd months
Listed lower-crowd months: October, April, and May.
Getting there
Use the closest major airport and a regional drive plan for Alcatraz Island.
The Alcatraz Ferry Terminal is located on Pier 33, near the intersection of The Embarcadero and Bay Street. Ferry tickets are required to get to Alcatraz. Purchase tickets through https://www.alcatrazcitycruises.com/ Commercial parking lots are available near Pier 33, but it is recommended to use public transportation. Visit Transit.511.org for more information on getting to Pier 33 and be sure to check the hours for parking garages.
Clock, compare, and listen
Season and now
Twelve-month planning is modeled from the published seasonal profile. The current hand stays unavailable until sourced alerts, hours, events, roads, and weather are fresh.
- Current hand
- Not available
Three listening lanes
Official NPS audio: Not provided for this snapshot.
Synthetic browser audio, never a field recording or live observation.
Jamcorder: Shared station.
| Month | Visitability | Crowd pressure |
|---|---|---|
| January | 51 | 16 |
| February | 54 | 18 |
| March | 58 | 28 |
| April | 62 | 42 |
| May | 62 | 60 |
| June | 58 | 82 |
| July | 52 | 94 |
| August | 52 | 92 |
| September | 61 | 70 |
| October | 62 | 44 |
| November | 57 | 24 |
| December | 52 | 16 |
The cue is a browser-generated composition, not a field recording. How NPS Sounds modeled audio works.
Methodology
This page uses the checked-in NPS identity snapshot for Alcatraz Island, the 4 source cards below, and the figures listed above. Data snapshot: October 27, 2026. Read the NPS Sounds methodology and about NPS Sounds for how pages are assembled.
- Data snapshot: October 27, 2026
- Source cards: 4
Data Behind This Reading
Source provenance
NPS identity
highAlcatraz Island is identified as Island with NPS code alca.
SourceOfficial operations
limitedOfficial alerts should be verified on the NPS page. This site uses a checked-in snapshot, not a live operations feed.
SourceWeather and seasonality
limitedThe climate on Alcatraz is unpredictable and can change suddenly. Cold, foggy mornings may give way to sunny afternoons, which in turn can shift quickly back to more fog and blustery winds. The most pleasant weather usually occurs in spring and fall. Summers tend to be cool and foggy, winter is our rainy season. Temperatures on Alcatraz seldom rise above 75°F (24°C) or fall below 38°
SourceHow this page is assembled
limitedplace page source cards come from the data snapshot October 27, 2026.
Source