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Puerto Williams, Chile
Region of Magallanes · Chile
Puerto Williams is a small town in Region of Magallanes, Chile with a population of 2,000. Elevation: 23 ft (7 m). Average temperature: 39°F (4°C).
Data updated June 2026
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About Puerto Williams
Puerto Williams is a city, port and naval base on Navarino Island in Chile. It faces the Beagle Channel. It is the capital of the Chilean Antarctic Province, one of four provinces in the Magellan and Chilean Antarctica Region, is the main city inside the Cape Horn Biosphere Reserve, and administers the communes of Chilean Antarctic Territory and Cabo de Hornos. It has a population of 2,874, including both naval personnel and civilians. Puerto Williams claims the title of world's southernmost city.
The settlement was founded in 1953, and was first named Puerto Luisa. The town was later named after John Williams Wilson, a British man who founded Fuerte Bulnes, the first settlement in the Strait of Magellan. It has served primarily as a naval base for Chile. The Chilean Navy runs the Guardiamarina Zañartu Airport and hospital, as well as nearby meteorological stations. Since the late 20th century, the number of navy personnel has decreased in Puerto Williams and the civilian population has increased. In that period, tourism and support of scientific research have contributed to an increase in economic activity.
People
Climate
| Population | 2,000 |
| Population Density | 5,263 / sq mi |
| Elevation | 23 ft (7 m) |
| Coordinates | -54.9336°, -67.6096° |
| Timezone | America/Santiago |
| Country | 🇨🇱 Chile |
| State / Province | Region of Magallanes |
| Average Temperature | 39°F (4°C) |
| January Average | 46°F (8°C) |
| July Average | 31°F (-0°C) |
| Annual Precipitation | 25.6 inches (650 mm) |
| Annual Snowfall | 8.5 inches (22 cm) |
About Puerto Williams
Puerto Williams is a small town in Chile (Region of Magallanes) with a population of 2,000. The city sits at an elevation of 23 feet (7 meters) above sea level. The average annual temperature is 39°F (4°C). Temperatures range from 46°F in January to 31°F in July. Annual precipitation averages 25.6 inches. The timezone is America/Santiago.
Temperature
| Annual Average | 39.1°F |
| 28% below Chile avg | |
| January Average | 46°F (8°C) |
| July Average | 31°F (-0°C) |
| Sunny Days | 290 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 5,263/sq mi |
| Coordinates | -54.9336°N, 67.6096°W |
| Timezone | America/Santiago |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 2.6 in | Warmest |
| February | 46°F (8°C) | 1.9 in | |
| March | 43°F (6°C) | 2.4 in | |
| April | 40°F (4°C) | 2.5 in | |
| May | 36°F (2°C) | 2.4 in | |
| June | 32°F (-0°C) | 2.2 in | |
| July | 31°F (-0°C) | 2.3 in | Coldest |
| August | 33°F (1°C) | 1.6 in | |
| September | 36°F (2°C) | 1.3 in | Driest |
| October | 40°F (4°C) | 1.5 in | |
| November | 43°F (6°C) | 2.8 in | Wettest |
| December | 45°F (7°C) | 2.1 in |
Puerto Williams has a seasonal temperature swing of 15°F / from 31°F in July to 46°F in January. Total annual precipitation is 25.6 inches, with November being the wettest month (2.8") and September the driest (1.3").
Schools in Puerto Williams
1 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| Liceo Donald Mc Intyre Griffiths | - | - | - | - |
Radio Stations near Puerto Williams
1 stations within ~55 km.
| Station | Genre | Quality | |
|---|---|---|---|
| Radio Azul Tolhuin FM 100.9 (AR) | news talk | AAC+ 32 kbps |
Museums in Puerto Williams
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Museo Territorial Yagan Usi "Martín González Calderón" |
Libraries in Puerto Williams
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Pierre Chili Public Library | 0.0 |
Hotels in Puerto Williams
2 hotels within city radius - OpenStreetMap data
Restaurants in Puerto Williams
6 restaurants within city radius - OpenStreetMap data
Cafes in Puerto Williams
2 cafes within city radius - OpenStreetMap data
Gas Stations in Puerto Williams
1 gas stations within city radius - OpenStreetMap data
Banks in Puerto Williams
2 banks within city radius - OpenStreetMap data
Gyms in Puerto Williams
1 gyms within city radius - OpenStreetMap data
Ski Resorts Near Puerto Williams
1 ski resorts within range.
| Resort | Slopes (km) | Lifts | Peak (m) | Price | Season | Night | Park |
|---|---|---|---|---|---|---|---|
| Cerro Castor | 0.0 | - | - | $0 | - | - | - |
Airports Near Puerto Williams
7 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Guardia Marina Zañartu Airport | WPU | Medium Airport |
| Ushuaia - Malvinas Argentinas International Airport | USH | Medium Airport |
| Estancia Los Cerros Airport | - | Small Airport |
| Lago Escondido Airport | - | Small Airport |
| Lago Fagnano North Airport | - | Small Airport |
| Tolhuin Lago Fagnano Airport | - | Small Airport |
| Ushuaia Aeroclub Airport | - | Small Airport |
Post Offices in Puerto Williams
2 post offices.
| Post Office | Address |
|---|---|
| Chilexpress | |
| Correos de Chile |
Churches & Religious Organizations in Puerto Williams
2 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Iglesia Naval Puerto Williams | |
| Parroquia Nuestra Señora Virgen de la Patagonia |
Explore Near Puerto Williams
Quick Facts
🇨🇱 About Chile
Public Holidays in Chile
17 public holidays this year
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Get ReportFrequently Asked Questions About Puerto Williams
What is the population of Puerto Williams?
Puerto Williams has a population of 2,000 residents and is located in Chile. The population density is 5,263 people per square mile, spread across 0.4 square miles.
What is the weather like in Puerto Williams?
Puerto Williams has a cool climate with an average annual temperature of 39°F (4°C). Winter temperatures average 46°F in January, while summers reach an average of 31°F in July. The area receives 290 sunny days per year, well above the national average of 205. Annual rainfall totals 25.6 inches, with 8.5 inches of snow.