How Long Do You Grill Squash

You can grill squash for about 4 to 6 minutes per side, depending on the type and thickness.
 
If you’ve been wondering how long do you grill squash, the answer really depends on whether you’re working with zucchini, yellow squash, butternut, or acorn squash.
 
Softer summer squash like zucchini cooks fast, usually in under 15 minutes total.
 
Firmer winter squash takes longer and often benefits from a quick parboil or pre-roast before it hits the grates.
 
In this post, we’ll cover exactly how long do you grill squash, plus tips for getting those perfect char marks every single time.
 
Let’s fire up the grill.
 

How Long Do You Grill Squash (By Type)

How long do you grill squash really comes down to the variety you’re cooking.
 
Here’s a breakdown so you can nail the timing no matter what’s on your menu.
 

1. Zucchini and Yellow Squash: 4–6 Minutes Per Side

When people ask how long do you grill squash, zucchini and yellow squash are usually what they mean.
 
These summer squash are tender, watery, and cook quickly over medium-high heat.
 
Slice them lengthwise into planks about ½ inch thick so they don’t fall through the grates.
 
Grill for 4 to 6 minutes per side, and you’ll get soft flesh with nice grill marks.
 
Total time: around 10 to 12 minutes.
 

2. Butternut Squash: 8–10 Minutes Per Side

Butternut squash is denser, so how long do you grill squash like this changes quite a bit.
 
Peel it, slice it into ½-inch slabs, and brush generously with oil.
 
Grill over medium heat for 8 to 10 minutes per side.
 
Because it’s so firm, you may want to parboil the slices for 5 minutes first.
 
That way the inside cooks through before the outside burns.
 

3. Acorn Squash: 10–12 Minutes Per Side

Acorn squash is another firm winter variety that takes patience on the grill.
 
Cut it into rings or wedges, scoop out the seeds, and brush with oil.
 
Grill over medium heat for 10 to 12 minutes per side.
 
If you’re still asking how long do you grill squash rings without them drying out, cover the grill for part of the cook time.
 
The trapped heat steams the squash while the direct flame chars the surface.
 

4. Delicata Squash: 5–7 Minutes Per Side

Delicata has thin, edible skin and tender flesh, so it grills fast.
 
Slice it into half-moons about ½ inch thick.
 
Grill for 5 to 7 minutes per side over medium-high heat.
 
It’s a great choice if you want to know how long do you grill squash without a long prep time.
 

Factors That Affect How Long Do You Grill Squash

The exact time depends on more than just the variety.
 
Keep these factors in mind so your squash turns out perfect every time.
 

1. Thickness of the Slices

Thicker slices need more time, thinner slices need less.
 
A ½-inch slice is the sweet spot for most squash because it cooks evenly without turning to mush.
 
If you cut them ¼ inch thick, reduce the time by about 2 minutes per side.
 

2. Grill Temperature

Medium-high heat (around 400–450°F) works for summer squash.
 
Medium heat (350–400°F) is better for denser winter varieties.
 
If your grill runs hot, how long do you grill squash will be shorter, so keep an eye on it.
 

3. Direct vs. Indirect Heat

Direct heat gives you those beautiful char marks.
 
Indirect heat cooks the squash through without burning the outside.
 
For thick winter squash, start over direct heat, then move to indirect to finish.
 

4. Pre-Cooking or Parboiling

Parboiling or microwaving squash for a few minutes before grilling cuts the cook time in half.
 
This is especially helpful for butternut and acorn squash.
 
Just don’t overcook them before they hit the grill, or they’ll fall apart.
 

Tips for Grilling Squash Perfectly

Knowing how long do you grill squash is only half the battle.
 
These tips will help you get the best results.
 

1. Oil the Squash, Not the Grates

Brush the squash slices with oil before grilling.
 
This prevents sticking better than oiling the grates alone.
 
Use an oil with a high smoke point, like avocado or grapeseed oil.
 

2. Season After Grilling

Salt draws out moisture, which can make squash soggy on the grill.
 
Season with salt and pepper after the squash comes off the heat.
 
A little lemon zest or fresh herbs at the end brightens everything up.
 

3. Don’t Flip Too Early

Give the squash time to release from the grates naturally.
 
If it sticks when you try to flip, it’s not ready yet.
 
Wait another minute or two, and it’ll lift cleanly.
 

4. Use a Grill Basket for Small Pieces

If you’re grilling cubed squash, a grill basket keeps everything from falling through.
 
Toss the cubes with oil, then grill for 10 to 15 minutes, stirring occasionally.
 

So, How Long Do You Grill Squash?

You grill squash for 4 to 6 minutes per side for summer varieties and 8 to 12 minutes per side for firmer winter squash.
 
The exact time depends on thickness, heat level, and whether you pre-cook it.
 
Now that you know how long do you grill squash by type, you can fire up the grill with confidence.
 
Grab your favorite squash, brush on some oil, and get those perfect char marks tonight.