Marathon

Antarctic Ice Marathon

Union Glacier, Antarctica December 42.195 km
Polar Bucket List Small Competitive Scenic Loop World Major

Next Race

Dec 15, 2026

Weather: Antarctic Ice Marathon

Historical weather data for race day in December. Use this to plan your race strategy, clothing, and hydration.

🥶 Racing conditions: Cold

🌡️

-25°C

Temperature

Range: -32°C – -18°C

💧

45%

Humidity

Low — comfortable

🌧️

5%

Rain Chance

Low chance of rain

📅

December

Typical race month

Usually on a Tuesday

📝 Conditions

Severe cold with persistent winds and perpetual daylight. Extreme UV exposure and altitude effects create harsh but stable conditions. Participants must acclimatize to 2,600m elevation and sub-Arctic temperatures.

👟 What to Wear

🧤

Gloves & hat

Essential for freezing starts

🧥

Thermal base layer

Retain body heat in cold wind

👕

Disposable outer layer

Stay warm pre-race, toss at the start

💧 Hydration Strategy

Before the Race

Normal hydration. Drink to thirst in the 24 hours before. Avoid over-hydrating.

During the Race

You'll sweat less in the cold but still need fluids. Take small sips at aid stations.

After the Race

Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.

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