Climate Insights for Williams Field, Antarctic

The climate in Williams Field, Antarctic is cold. The average annual temperature is -19°C and approximately 155mm of precipitation falls per year. January is the wettest month, receiving around 25mm of rainfall. Williams Field, Antarctic is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: December, January, February. The coldest months are August, July, September, when temperatures can drop to -30°C. Snowfall occurs from January to December, with around 134cm accumulating over the season.

Temperatures in Williams Field, Antarctic vary considerably across the year, with a 26°C difference between the coldest and warmest months. December is the warmest month, though highs remain moderate at -4°C with a mean of -6°C. August brings the harshest conditions, with lows dropping to -30°C and an average temperature of -28°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between February and March, with a 8°C shift in average temperatures.

Williams Field, Antarctic is a quite dry location, receiving approximately 155mm of precipitation annually, which averages out to around 13mm per month. The wettest month is January, averaging 25mm of rainfall. August and February also tend to see above-average precipitation. The driest month is November, with just 7mm. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 134cm accumulating over the season. January typically sees the most snow at around 20cm.

Williams Field, Antarctic is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 10km/h in winter, 9km/h in spring, 8km/h in summer, 9km/h in autumn.

It is currently autumn in Williams Field, Antarctic, which began on March 20, 2026. Williams Field, Antarctic is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in December at around -4°C, while the coldest stretch bottoms out in August near -30°C. Winter is next, beginning on June 21, 2026 — 90 days from now.

The table below shows monthly climate averages for Williams Field, Antarctic based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.