Attraction in San Francisco

Alcatraz Island 気候 and Average 天気

気候 of Alcatraz Island: average temperatures, rainfall and seasons month by month.

☀️ 18°C now🕔 12:34 PM local📅 Best: 5月, 6月, 7月, 8月, 9月 and 10月

気候 in Alcatraz Island month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

Line: average high · Bars: rainfall
月Avg highAvg low雨fallRating
1月15°8°84 mm★★★☆☆
2月15°9°141 mm★★★☆☆
3月18°10°76 mm★★★★☆
4月17°10°52 mm★★★★☆
5月18°11°15 mm★★★★★
6月19°12°0 mm★★★★★
7月19°13°2 mm★★★★★
8月20°14°1 mm★★★★★
9月21°14°5 mm★★★★★
10月22°13°19 mm★★★★★
11月17°10°104 mm★★★☆☆
12月14°8°148 mm★★★☆☆

気候 type: Temperate. 出典: Open-Meteo archive (ERA5).

Recent extremes in Alcatraz Island

高いest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.

Hottest day38°C10月 1, 2024
Coldest night4°C1月 27, 2025
Wettest day58 mm11月 22, 2024

How Alcatraz Island compares、nearby places

Annual averages, and the difference against Alcatraz Island.

PlaceDistanceAvg tempvs hereAnnual rain
Fisherman's Wharf2 km14°Cabout the same647 mm
ZIP Code 941333 km14°Cabout the same647 mm
Golden Gate Bridge5 km14°Cabout the same647 mm
ZIP Code 941025 km14°Cabout the same647 mm
Area Code 4156 km14°Cabout the same647 mm

訪問に最適な時期 Alcatraz Island

Go in 5月, 6月, 7月, 8月, 9月 and 10月. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: 1月, 2月 and 12月 - expect the least comfortable mix of heat, cold or rain.

1月★★★☆☆
2月★★★☆☆
3月★★★★☆
4月★★★★☆
5月★★★★★
6月★★★★★
7月★★★★★
8月★★★★★
9月★★★★★
10月★★★★★
11月★★★☆☆
12月★★★☆☆

What this means for Alcatraz Island

Compared、normal

Today is about average for 10月. The forecast high of 21°C is in line、the 22°C typical for this month.

雨 chance explained

雨 is very unlikely today - plans do not need a backup.

旅行 and driving

No weather-related travel disruption is expected today. Roads and airports should run normally.

Worth knowing

Northern Hemisphere, so peak summer falls in 6月から8月.

Worth knowing

The gap between the warmest and coldest month averages 6°C - an unusually even climate through the year.

Whatからpack, whatからskip

Pack for the next 7 days
  • Layers - the daily swing is 12°C, so mornings feel nothing like afternoons
Worth avoiding
  • If your dates are flexible, avoid 1月, 2月 and 12月 - historically the least comfortable months here.

概要

Alcatraz Island is a tourist attraction in San Francisco. Alcatraz Island is a landmark known for the former federal prison in the bay.

現在の気温は18°C (64°F) in Alcatraz Island、快晴. 体感温度は15°C. 今日の気温は12°Cから21°C. 降水確率は1%. Sightseeing conditions score 9.3/10 - 絶好 — 今すぐ出かけられます.

訪問に最適な時期はAlcatraz Island is 5月, 6月, 7月, 8月, 9月 and 10月. 気候はtemperate. 1月, 2月 and 12月 tendからbe the least comfortable months. 10月 is the warmest month、average highs near 22°C, while 1月 is the coldest、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 7月ia Pfeiffer Burns State Park.

簡単に言うと。 Today is about average for 10月. The forecast high of 21°C is in line、the 22°C typical for this month. The best windowからbe outside is roughly 1 PMから4 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Alcatraz Island today at 10/10. 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

種類Attraction
CitySan Francisco
国アメリカ合衆国
大陸北アメリカ
座標37°49′36.1″N 122°25′22.8″W (37.8267, -122.423)
Known forthe former federal prison in the bay
現地時刻12:34 PM (UTC-07:00)
Best months5月, 6月, 7月, 8月, 9月 and 10月
気候Temperate

天気 map for Alcatraz Island

Animated model layers. Pick a layerからload it.

Loading map…

Animated layers by 風y. 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.

気候 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 北アメリカ.

What is the weather like in Alcatraz Island現在?

It is currently 18°C (64°F)、快晴. 湿度 is 59% and wind is 19 km/h.

When is the best timeからvisit Alcatraz Island?

5月, 6月, 7月, 8月, 9月 and 10月 offer the most comfortable conditions in Alcatraz Island, which has a temperate climate. 1月, 2月 and 12月 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 12:34 PM.

What is the nearest airportからAlcatraz Island?

The closest airports are San Francisco International Airport (SFO), 23 km away.

What are the top thingsからdo in Alcatraz Island?

Popular options include Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, 7月ia Pfeiffer Burns State Park, Emerald Bay State Park and Yosemite National Park.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (attractions) - coordinates, hierarchy and facts.
予報 and observationsOpen-Meteo (ECMWF and national models).
大気質 and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
気候 averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National 天気 Service.
MethodScores, 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 10月 24, 2026 at 12:34 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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