Climate Overview
The climate in Williams Field, Antarctic is cold. The average annual temperature is -22°C and approximately 208mm of precipitation falls per year. August is the wettest month, receiving around 30mm 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, November. The coldest months are July, September, August, when temperatures can drop to -37°C. Williams Field, Antarctic experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Williams Field, Antarctic vary considerably across the year, with a 33°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. July brings the harshest conditions, with lows dropping to -37°C and an average temperature of -33°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between September and October, with a 10°C shift in average temperatures.
Precipitation
Williams Field, Antarctic is a quite dry location, receiving approximately 208mm of precipitation annually, which averages out to around 17mm per month. The wettest month is August, averaging 30mm of rainfall. January and February also tend to see above-average precipitation. The driest month is November, with just 9mm. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Williams Field, Antarctic receives heavy snowfall, accumulating around 207cm annually from January through December. The snowiest month is August, with approximately 30cm. Winter travel should account for significant snow cover.
Wind
Williams Field, Antarctic is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
93 days until Spring
It is currently winter in Williams Field, Antarctic, which began on June 21, 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 July near -37°C. Spring is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from -36 to -10°C. Precipitation is minimal, with only around 44mm for the entire season. Winds are generally light, averaging 2km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from -16 to -4°C. Rainfall is relatively light, with around 60mm over the season and a monthly average of 20mm. Winds are generally light, averaging 2km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -32 to -21°C. Rainfall is relatively light, with around 48mm over the season and a monthly average of 16mm. Expect around 48cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -37 to -27°C. Rainfall is relatively light, with around 56mm over the season and a monthly average of 19mm. Expect around 56cm of snow accumulation during this period. Winds are generally light, averaging 3km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
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.
