Alcatraz Island Ilmasto and Average Sää
Ilmasto of Alcatraz Island: average temperatures, rainfall and seasons month by month.
Ilmasto in Alcatraz Island month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Kuukausi | Avg high | Avg low | Sadefall | Rating |
|---|---|---|---|---|
| tammikuu | 15° | 8° | 84 mm | ★★★☆☆ |
| helmikuu | 15° | 9° | 141 mm | ★★★☆☆ |
| maaliskuu | 18° | 10° | 76 mm | ★★★★☆ |
| huhtikuu | 17° | 10° | 52 mm | ★★★★☆ |
| tou | 18° | 11° | 15 mm | ★★★★★ |
| kesäkuu | 19° | 12° | 0 mm | ★★★★★ |
| heinäkuu | 19° | 13° | 2 mm | ★★★★★ |
| elokuu | 21° | 14° | 1 mm | ★★★★★ |
| syyskuu | 21° | 14° | 4 mm | ★★★★★ |
| lokakuu | 22° | 13° | 19 mm | ★★★★★ |
| marraskuu | 17° | 10° | 104 mm | ★★★☆☆ |
| joulukuu | 14° | 8° | 148 mm | ★★★☆☆ |
Ilmasto type: Temperate. Lähde: Open-Meteo archive (ERA5).
Recent extremes in Alcatraz Island
Korkeaest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Alcatraz Island compares ja nearby places
Annual averages, and the difference against Alcatraz Island.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Fisherman's Wharf | 2 km | 14°C | about the same | 646 mm |
| ZIP Code 94133 | 3 km | 14°C | about the same | 646 mm |
| Golden Gate Bridge | 5 km | 14°C | about the same | 646 mm |
| ZIP Code 94102 | 5 km | 14°C | about the same | 646 mm |
| Area Code 415 | 6 km | 14°C | about the same | 646 mm |
Paras aika vierailla Alcatraz Island
Go in tou, kesäkuu, heinäkuu, elokuu, syyskuu and lokakuu. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: tammikuu, helmikuu and joulukuu - expect the least comfortable mix of heat, cold or rain.
What this means for Alcatraz Island
Today is slightly warmer than average for elokuu. The forecast high of 24°C is 3.8°C above the 21°C typical for this month.
Sade is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in kesäkuu ja elokuu.
The gap between the warmest and coldest month averages 6°C - an unusually even climate through the year.
What ja pack, what ja skip
- suglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid tammikuu, helmikuu and joulukuu - historically the least comfortable months here.
Yhteenveto
Alcatraz Island is a tourist attraction in San Francisco. Alcatraz Island is a landmark known for the former federal prison in the bay.
Tällä hetkellä lämpötila on 15°C (59°F) in Alcatraz Island ja pääosin selkeää. Tuntuu kuin 14°C. Tänään lämpötila vaihtelee 13°C ja 24°C. laeen todennäköisyys on 2%. Sightseeing conditions score 9.4/10 - erinomainen — lähde nyt.
Paras aika matkustaa kohteeseen Alcatraz Island is tou, kesäkuu, heinäkuu, elokuu, syyskuu and lokakuu. Ilmasto on temperate. tammikuu, helmikuu and joulukuu tend ja be the least comfortable months. lokakuu is the warmest month ja average highs near 22°C, while tammikuu is the coldest ja lows near 8°C.
The closest major airport is San Francisco International Airport (SFO), about 23 km away. Nearby highlights include Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park and heiia Pfeiffer Burns State Park.
Yksinkertaisesti sanottuna. Today is slightly warmer than average for elokuu. The forecast high of 24°C is 3.8°C above the 21°C typical for this month. The best window ja be outside is roughly 2 PM ja 5 PM, when temperature, rain chance and wind line up best. photography is the strongest bet in Alcatraz Island today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Alcatraz Island
| Tyyppi | Attraction |
|---|---|
| City | San Francisco |
| Maa | Yhdysvallat |
| Maanosa | Pohjois-Amerikka |
| Koordinaatit | 37°49′36.1″N 122°25′22.8″W (37.8267, -122.423) |
| Known for | the former federal prison in the bay |
| Paikallinen aika | 10:48 PM (UTC-07:00) |
| Best months | tou, kesäkuu, heinäkuu, elokuu, syyskuu and lokakuu |
| Ilmasto | Temperate |
Sää map for Alcatraz Island
Animated model layers. Pick a layer ja load it.
Animated layers by Tuuliy. For pin-level detail and nearby places, see the interactive map below.
Explore Alcatraz Island
Every topic we hold for this place, and the same topic for the places around it.
Ilmasto for related places
Frequently asked questions
Where is Alcatraz Island?
Alcatraz Island is a tourist attraction in San Francisco. Its coordinates are 37.8267, -122.423. It lies in Pohjois-Amerikka.
What is the weather like in Alcatraz Island nyt?
It is currently 15°C (59°F) ja pääosin selkeää. Kosteus is 93% and wind is 16 km/h.
When is the best time ja visit Alcatraz Island?
tou, kesäkuu, heinäkuu, elokuu, syyskuu and lokakuu offer the most comfortable conditions in Alcatraz Island, which has a temperate climate. tammikuu, helmikuu and joulukuu are usually the hardest months for outdoor plans.
What time zone is Alcatraz Island in?
Alcatraz Island observes America/Los_Angeles (UTC-07:00). The local time is 10:48 PM.
What is the nearest airport ja Alcatraz Island?
The closest airports are San Francisco International Airport (SFO), 23 km away.
What are the top things ja do in Alcatraz Island?
Popular options include Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, heiia Pfeiffer Burns State Park, Emerald Bay State Park and Lake Tahoe.
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| Place data | USPOTUS Atlas dataset (attractions) - coordinates, hierarchy and facts. |
|---|---|
| Ennuste and observations | Open-Meteo (ECMWF and national models). |
| Ilmanlaatu and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Ilmasto averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Sää Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated elokuu 23, 2026 at 10:48 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
