Attraction in San Francisco

Alcatraz Island Veður Spá

Alcatraz Island weather: 16°C, heiðskýrt. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.

☀️ 16°C now🕔 12:49 AM local📅 Best: maí, júní, júlí, ágúst, september and október

Samantekt

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

Núna er hitinn 16°C (61°F) in Alcatraz Island með heiðskýrt. Hitinn finnst vera 13°C. Í dag er hitinn frá 12°C til 19°C. Líkur á úrkomu eru 1%. Sightseeing conditions score 9.2/10 - frábært — farðu núna.

Besti tíminn til að heimsækja Alcatraz Island is maí, júní, júlí, ágúst, september and október. Loftslagið er temperate. janúar, febrúar and desember tend til be the least comfortable months. október is the warmest month með average highs near 22°C, while janúar is the coldest með 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 júlia Pfeiffer Burns State Park.

Í einföldu máli. Today is slightly cooler than average for október. The forecast high of 19°C is 2.8°C below the 22°C typical for this month. The best window til be outside is roughly 1 PM til 4 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Alcatraz Island today at 9.6/10. 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.

Active alerts for Alcatraz Island

⚠️Coastal Flood Advisory · Minor
Coastal Flood Advisory issued október 26 at 8:59PM PDT until október 30 at 5:00PM PDT by NWS San Francisco CA
Issued by NWS San Francisco CA

Veður í Alcatraz Island núna

☀️
16°C
Heiðskýrt · feels like 13°C
Raki65%
Vindur23 km/h W
Vindhviður35 km/h
UV-vísitala0.7 · Lágt
Skýjahula10%
Loftþrýstingur1016 hPa
SkyggniGood · 19 km
Loftgæði28 · Good
Sólarupprás7:29 AM
Sólsetur6:17 PM
Tungl🌖 Waning gibbous · 94%

Open-Meteo Updated 12:49 AM, okt 28 local time.

Næstu 24 klukkustundir

Hitastig, líkur á úrkomu og vindur eftir klukkustundum

6 PM☀️16°0%22 km/h
7 PM🌙14°0%18 km/h
8 PM🌙14°0%16 km/h
9 PM🌙14°0%12 km/h
10 PM🌙13°0%13 km/h
11 PM🌙13°0%16 km/h
12 AM🌙13°0%18 km/h
1 AM🌙13°0%20 km/h
2 AM🌙13°0%20 km/h
3 AM🌙13°0%19 km/h
4 AM🌙12°0%17 km/h
5 AM🌙12°0%16 km/h
6 AM🌙12°0%16 km/h
7 AM☁️12°0%16 km/h
8 AM☁️12°0%17 km/h
9 AM☁️14°0%19 km/h
10 AM☁️15°0%10 km/h
11 AM☁️16°0%5 km/h
12 PM☁️17°0%3 km/h
1 PM☁️17°0%3 km/h
2 PM☀️18°0%6 km/h
3 PM☀️19°0%15 km/h
4 PM🌤️18°0%20 km/h
5 PM☀️17°0%19 km/h

16-day forecast for Alcatraz Island

Hæst / Lægst; Úrkoma; UV

DagurAðstæðurHæst / LægstÚrkomaVindurUV
mán., okt 26☁️ Skýjað19° / 12°1%23 km/h5
þri., okt 27☁️ Skýjað19° / 11°0%20 km/h4
mið., okt 28☁️ Skýjað18° / 10°0%12 km/h5
fim., okt 29☁️ Skýjað19° / 13°0%10 km/h4
fös., okt 30☁️ Skýjað16° / 12°2%25 km/h4
lau., okt 31☁️ Skýjað15° / 13°16%23 km/h4
sun., nóv 1☀️ Heiðskýrt18° / 11°16%12 km/h4
mán., nóv 2☁️ Skýjað21° / 12°11%10 km/h4
þri., nóv 3☁️ Skýjað22° / 14°31%6 km/h4
mið., nóv 4🌦️ Drizzle22° / 15°29% · 2 mm13 km/h3
fim., nóv 5🌦️ Light showers18° / 14°41% · 7 mm14 km/h1
fös., nóv 6🌧️ Rigning21° / 17°39% · 14 mm43 km/h3
lau., nóv 7🌧️ Rigning20° / 16°35% · 16 mm37 km/h3
sun., nóv 8🌦️ Light drizzle19° / 15°45% · 1 mm10 km/h4
mán., nóv 9☁️ Skýjað20° / 15°19%11 km/h4
þri., nóv 10☀️ Heiðskýrt23° / 17°18%10 km/h4

Loftslag in Alcatraz Island month by month

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

janfebmaraprjújúágsepoktnódesLine: average high · Bars: rainfall
MánuðurAvg highAvg lowRigningfallRating
janúar15°8°84 mm★★★☆☆
febrúar15°9°141 mm★★★☆☆
mars18°10°76 mm★★★★☆
apríl17°10°52 mm★★★★☆
maí18°11°15 mm★★★★★
júní19°12°0 mm★★★★★
júlí19°13°2 mm★★★★★
ágúst20°14°1 mm★★★★★
september21°14°5 mm★★★★★
október22°13°19 mm★★★★★
nóvember17°10°104 mm★★★☆☆
desember14°8°148 mm★★★☆☆

Loftslag type: Temperate. Heimild: Open-Meteo archive (ERA5).

Veður map for Alcatraz Island

Animated model layers. Pick a layer til load it.

Loading map…

Animated layers by Vindury. For pin-level detail and nearby places, see the interactive map below.

Loftgæði and pollen in Alcatraz Island

28
Good
Loftgæði is satisfactory for everyone.
PM2.55.8 µg/m³
PM108.4 µg/m³
Ozone77 µg/m³
NO₂1.9 µg/m³
UV-vísitala0.7 · Lágt
Airborne hazeClear air

Loftgæði: Open-Meteo (CAMS). US AQI scale.

sun., twilight and moon

Sólarupprás7:29 AM
Sólsetur6:17 PM
Dagurlight10h 48m
Solar noon12:53 PM
Golden hour (am)7:29 AM - 8:29 AM
Golden hour (pm)5:17 PM - 6:17 PM
Blue hour (am)6:59 AM - 7:29 AM
Blue hour (pm)6:17 PM - 6:47 PM
Tungl phase🌖 Waning gibbous · 94%
Tunglrise7:55 PM
Tunglset10:55 AM

Golden and blue hour are the standard photographic approximation around sunrise and sunset.

Best time til visit Alcatraz Island

Go in maí, júní, júlí, ágúst, september and október. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: janúar, febrúar and desember - expect the least comfortable mix of heat, cold or rain.

janúar★★★☆☆
febrúar★★★☆☆
mars★★★★☆
apríl★★★★☆
maí★★★★★
júní★★★★★
júlí★★★★★
ágúst★★★★★
september★★★★★
október★★★★★
nóvember★★★☆☆
desember★★★☆☆

Explore Alcatraz Island

Every topic we hold for this place, and the same topic for the places around it.

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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 Norður-Ameríka.

What is the weather like in Alcatraz Island núna?

It is currently 16°C (61°F) með heiðskýrt. Raki is 65% and wind is 23 km/h.

When is the best time til visit Alcatraz Island?

maí, júní, júlí, ágúst, september and október offer the most comfortable conditions in Alcatraz Island, which has a temperate climate. janúar, febrúar and desember 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 12:49 AM.

What is the nearest airport til Alcatraz Island?

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

What are the top things til do in Alcatraz Island?

Popular options include Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, júlia 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.
Spá and observationsOpen-Meteo (ECMWF and national models).
Loftgæði and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Loftslag averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Veður 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 október 28, 2026 at 12:49 AM 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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