5D4N Beijing Winter Trip — Is this pacing too intense for sub-zero weather

Hello, planning a 5-day winter trip to Beijing (early flight arrival Day 1, midnight departure Day 5). We will hire guides for the major historical sites.

Here is our daily breakdown:

Day 1: Tiananmen Square → Forbidden City (Guided) → Jingshan Park → Wangfujing Pedestrian Street

Day 2: Prince Gong’s Mansion (Guided) → Nanluoguxiang & Hutongs → Shichahai Lake (ice-sledding) → Yandai Xiejie (Tobacco Pouch Slant Street)

Day 3: Mutianyu Great Wall (Guided Day Tour)

Day 4: Temple of Heaven (Guided) → Summer Palace (Guided)

Day 5: 798 Art Zone → Taikoo Li Sanlitun → Late night airport transfer home

Is this itinerary too packed or too loose for the -8°C to 3°C weather?

Thanks for any feedback!