Is it hot at Millennium Park (The Bean)?

Cloud Gate under a summer sun: shade around Chicago's Bean

The plaza that holds Cloud Gate, the polished sculpture everyone calls the Bean, is one of the most open spaces in Millennium Park. That is by design; the wide granite AT&T Plaza is meant to give the mirrored surface room to reflect the skyline and the crowd. It also means the spot where most people stand has almost no shade, and on a bright Chicago afternoon the polished steel bounces even more light and heat back at you.

At 3 PM on a July day the sun sits about 57 degrees up on a west-southwest bearing near 240, high and strong over the open plaza. Chicago's July highs run around 85°F, warm but not extreme, so the discomfort at the Bean is more about glare and exposed pavement than genuine heat danger. Still, the plaza has no canopy, and midday is when it is most crowded and most exposed.

Where the park's real shade is

Millennium Park is a park, and away from the Bean's plaza it has genuine tree cover. The tree-lined promenades and the plantings around the edges of the park throw real shade, and that is where to retreat between visits to the sculpture. A good rhythm on a hot day is to see Cloud Gate, then step off the open granite into the shaded walks nearby to cool down.

• Morning, after the 5:28 AM July sunrise, gives you the Bean with low crowds and long shadows across the plaza.
• Late afternoon toward the 8:23 PM sunset softens the light and lets the surrounding buildings start to shade the plaza's eastern edge.
• Midday is the brightest and busiest, with the sun overhead and the crowd at its peak.

The rest of a park visit

If your day includes the Pritzker Pavilion's great lawn or the Lurie Garden, know that those open lawns are the hot spots; a lawn in full July sun bakes just like the plaza does. The shaded perimeter walks are your friend for moving between attractions without cooking. There is water and shade to be found around the park's edges, so plan loops that dip back into the trees.

Seasonally, Chicago gives you a wide comfortable window. June through August is the warm stretch, but by September the high eases to 75 and the park becomes a genuinely pleasant all-day destination, with spring doing the same before summer arrives.

To see how the surrounding downtown towers and the park's own trees cast shade across the plaza at the hour you plan to visit, the satellite shadow view shows it for any date. At Millennium Park the pattern is simple: the Bean sits in the open, so use the park's tree-lined walks as your shade and save the plaza for the cooler ends of the day.