Three hours on the wrong side of Alumni Stadium in September is a bake. The field runs almost due north-south, the shade collects on the west sideline, and below is how much of a noon, 3:30 or night Boston College kickoff every area spends in shade, ray-traced for this exact bowl.
Pick your game and kickoff. Watch the shade move across the bowl through the game.
The field runs almost due north-south, so the afternoon sun crosses the bowl broadside. The stands on the west side block it first: that sideline averages about 80% of a 3:30 game in shade against 31% for the east side. Every number here is ray-traced for this exact orientation (178 degrees), latitude and kickoff time, by the same engine as the live map.
Share of a full game spent in shade, by area, for a mid-September Saturday:
| Seats | Noon | 3:30 | 7:00 |
|---|---|---|---|
| West sideline, lower rows | 0% | 81% | 100% |
| West sideline, upper deck | 0% | 77% | 100% |
| East sideline, lower rows | 0% | 40% | 100% |
| East sideline, upper deck | 0% | 21% | 100% |
| South end zone, lower rows | 0% | 56% | 100% |
| South end zone, upper deck | 0% | 36% | 100% |
| North end zone, lower rows | 0% | 56% | 100% |
| North end zone, upper deck | 0% | 35% | 100% |
A 100% cell means that area never sees direct sun that game. The 7:00 column climbs everywhere because the sun sets mid-game.
| Seats | Game in shade | Reaches half shade |
|---|---|---|
| West sideline, lower rows | 81% | about 48 minutes in |
| West sideline, mid level | 81% | about 48 minutes in |
| West sideline, upper deck | 77% | about an hour in |
| South end zone, lower rows | 56% | about 2 hours in |
East sideline, upper deck sit in sun for 79% of a 3:30 game, and East sideline, mid level sit in sun for 69% of a 3:30 game. Noon kickoffs start with the sun about 51 degrees high and nearly every open seat lit. You cannot buy full shade at noon here, only a head start: west sideline, lower rows gain it soonest.
At a 3:30 kickoff the sun stands about 36 degrees up in the southwest. Minute by minute, this is what the model shows: shade climbs the west sideline from the bottom up. The lower rows reach half shade about 48 minutes in, the upper deck about an hour in. Most fans guess the upper deck shades first. Here it is backwards: the rake of the stands roughly matches the afternoon sun angle, so shadow pools at the front rows first and then climbs the bowl one row at a time. Even the east sideline, upper deck eventually get there, but not until about 3.5 hours in.
At a 7:00 kickoff the sun starts about -1 degrees up and disappears before halftime, so every area heads to 100% in the night column. When the schedule offers a night game, that is the shade play, not a seat trick.
Shift the same 3:30 game to late October and the numbers move on their own: about 100% shade on the west sideline instead of 80%, with the kickoff sun 14 degrees lower (22 vs 36). November crowds rarely need this page at all.
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Every number here is produced by a 3D ray-traced model of this seating bowl plus the exact solar position for the dates and kickoffs shown, the same engine behind the live map. The model approximates the bowl as a continuous tiered ring, without overhangs, press boxes or section canopies, so read the percentages as a dependable ranking of which areas shade first, not a row-level guarantee. Independent tool; not affiliated with the NCAA or any school.
Same conference, same afternoon sun. Shade guides for the rest of the ACC: