Alcatraz Island Clima and Average Tempo
Clima of Alcatraz Island: average temperatures, rainfall and seasons month by month.
Clima in Alcatraz Island month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mês | Máxima média | Mínima média | Precipitação | Avaliação |
|---|---|---|---|---|
| janeiro | 15° | 8° | 84 mm | ★★★☆☆ |
| fevereiro | 15° | 9° | 141 mm | ★★★☆☆ |
| março | 18° | 10° | 76 mm | ★★★★☆ |
| abril | 17° | 10° | 52 mm | ★★★★☆ |
| mai | 18° | 11° | 15 mm | ★★★★★ |
| junho | 19° | 12° | 0 mm | ★★★★★ |
| julho | 19° | 13° | 2 mm | ★★★★★ |
| agosto | 20° | 14° | 1 mm | ★★★★★ |
| setembro | 21° | 14° | 5 mm | ★★★★★ |
| outubro | 22° | 13° | 19 mm | ★★★★★ |
| novembro | 17° | 10° | 104 mm | ★★★☆☆ |
| dezembro | 14° | 8° | 148 mm | ★★★☆☆ |
Clima type: Temperate. Fonte: Open-Meteo archive (ERA5).
Recent extremes in Alcatraz Island
Altoest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How Alcatraz Island compares com 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 | 647 mm |
| ZIP Code 94133 | 3 km | 14°C | about the same | 647 mm |
| Golden Gate Bridge | 5 km | 14°C | about the same | 647 mm |
| ZIP Code 94102 | 5 km | 14°C | about the same | 647 mm |
| Area Code 415 | 6 km | 14°C | about the same | 647 mm |
Melhor época para visitar Alcatraz Island
Go in mai, junho, julho, agosto, setembro and outubro. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: janeiro, fevereiro and dezembro – expect the least comfortable mix of heat, cold or rain.
What this means for Alcatraz Island
Today is slightly cooler than average for outubro. The forecast high of 19°C is 2.4°C below the 22°C typical for this month.
Chuva 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 junho a agosto.
The gap between the warmest and coldest month averages 6°C – an unusually even climate through the year.
What a pack, what a skip
- Normal seasonal clothing – nothing unusual is needed this week
- If your dates are flexible, avoid janeiro, fevereiro and dezembro – historically the least comfortable months here.
Resumo
Alcatraz Island is a tourist attraction in San Francisco. Alcatraz Island is a landmark known for the former federal prison in the bay.
Neste momento, a temperatura é de 12°C (53°F) in Alcatraz Island com céu limpo. A sensação térmica é de 11°C. Hoje as temperaturas variam de 11°C a 19°C. A probabilidade de precipitação é de 1%. As condições para passeios turísticos têm pontuação de 9.2/10 – excelente — pode sair agora.
A melhor época para visitar Alcatraz Island is mai, junho, julho, agosto, setembro and outubro. O clima é temperate. janeiro, fevereiro and dezembro costumam ser os meses menos confortáveis. outubro é o mês mais quente, com máximas médias próximas de 22°C, enquanto janeiro é o mês mais frio, com mínimas próximas de 8°C.
O principal aeroporto mais próximo é San Francisco International Airport (SFO), about 23 km away. Entre os destaques próximos estão Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park and julia Pfeiffer Burns State Park.
Em termos simples. Today is slightly cooler than average for outubro. The forecast high of 19°C is 2.4°C below the 22°C typical for this month. The best window a be outside is roughly 2 PM a 5 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Alcatraz Island today at 9.9/10. 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
| Tipo | Attraction |
|---|---|
| City | San Francisco |
| País | Estados Unidos |
| Continente | América do Norte |
| Coordenadas | 37°49′36.1″N 122°25′22.8″W (37.8267, -122.423) |
| Known for | the former federal prison in the bay |
| Hora local | 4:54 PM (UTC-07:00) |
| Melhores meses | mai, junho, julho, agosto, setembro and outubro |
| Clima | Temperate |
Tempo map for Alcatraz Island
Animated model layers. Pick a layer a load it.
Animated layers by Ventoy. 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.
Clima 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 América do Norte.
What is the weather like in Alcatraz Island agora?
It is currently 12°C (53°F) com céu limpo. Humidade is 88% and wind is 7 km/h.
When is the best time a visit Alcatraz Island?
mai, junho, julho, agosto, setembro and outubro offer the most comfortable conditions in Alcatraz Island, which has a temperate climate. janeiro, fevereiro and dezembro 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 hora local is 4:54 PM.
What is the nearest airport a Alcatraz Island?
The closest airports are San Francisco International Airport (SFO), 23 km away.
What are the top things a do in Alcatraz Island?
Popular options include Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, julia Pfeiffer Burns State Park, Emerald Bay State Park and Yosemite National Park.
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| Place data | USPOTUS Atlas dataset (attractions) – coordinates, hierarchy and facts. |
|---|---|
| Previsão and observations | Open-Meteo (ECMWF and national models). |
| Qualidade do ar and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Clima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Tempo 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 outubro 23, 2026 at 4:54 PM hora local. Live blocks refresh every 15 minutes; climate averages monthly.
