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Weather & Climate in Puerto Williams, Chile
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Puerto Williams has a cool climate with an average annual temperature of 39°F (4°C). Winters average 46°F in January while summers reach 31°F in July / relatively mild seasonal variation. The area gets 290 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 25.6 inches (drier than the 38-inch national average). The area receives 8.5 inches of snow annually. The city sits at an elevation of 23 feet.
Temperature
46°F Jan (8°C)
31°F Jul (-0°C)
| Annual Average | 39.1°F |
| 28% below US 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
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Jan 9, 2006 | 84 km NW of Ushuaia, Argentina | M4.6 | 129 km | 9 km |
| Feb 8, 2021 | 39 km SSE of Tolhuin, Argentina | M4.2 | 49 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
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").