When Are Autumn Crisp Grapes in Season? Full 2026 Guide
Autumn Crisp grapes sit on produce shelves for far longer than most shoppers expect. When Autumn Crisp grapes are in season depends on which country grew the fruit, since supply rotates across the Americas. Here is the full timeline you can plan a year of buying around.
Autumn Crisp grapes hit peak U.S. season from September through October during California’s harvest. Imported supply from Peru, Chile, and Mexico extends availability from November through June, giving you fresh Autumn Crisp roughly ten months out of the year.
When Are Autumn Crisp Grapes in Season in the United States?
The Autumn Crisp season in the U.S. runs September through October, with the domestic crop coming almost entirely from California. After California winds down, imported fruit takes over from November through June. That country-by-country rotation keeps grocery shelves stocked most of the year.
California grows roughly 99 percent of all table grapes raised in the U.S., per the California Table Grape Commission. Autumn Crisp acreage has climbed steadily across the San Joaquin Valley as growers shift toward newer proprietary varieties. If you want a fuller breakdown of this autumn crisp variety and its parent crosses, I have a separate piece on it.
California Autumn Crisp Harvest Window
California’s Autumn Crisp harvest begins in September and runs through October. This is a late-maturing variety by design, slotting in after Flame Seedless finishes in July and after mid-season greens like Ivory wrap up in August.
Growers in the San Joaquin Valley account for about 85 percent of California’s table grape acreage. Hot summer days and cooler fall nights in that valley build the sugar and crunchy texture that gives this grape its name. By late October, most of the California crop has shipped, and cold storage rooms start to empty.
The USDA NASS California Grape Acreage Report, released April 22, 2026, put Autumn Crisp at 4,154 bearing acres with 448 non-bearing acres still coming online. You can read the full report at the USDA National Agricultural Statistics Service. That growth tells me where the table grape industry is heading.
Peruvian Autumn Crisp Season
Peru’s Autumn Crisp season runs November through April, with peak volumes landing at U.S. ports in February. Peru is now the largest grower of Autumn Crisp in the world.
Northern Peru ships first, followed by southern Peru as the calendar moves into the new year. About 60 percent of Peru’s Autumn Crisp volume heads to the United States. For the 2025-2026 season, Provid (the Peruvian Association of Table Grape Producers and Exporters) projected more than 17 million boxes of Autumn Crisp from Peru alone, and the variety now makes up roughly 20 percent of Peru’s total table grape exports.
Chilean Autumn Crisp Window
Chilean Autumn Crisp shows up in U.S. stores from January through May, overlapping with the back half of Peru’s run. Chile’s table grape harvest opens in December for early varieties, with Autumn Crisp coming a bit later in the calendar.
Frutas de Chile, the country brand, projected 64 million boxes of total table grape exports for the 2025-2026 season. Chilean Autumn Crisp competes directly with Peruvian fruit in U.S. supermarkets during the late winter and spring window. Quality varies more than Peruvian fruit because the longer ocean transit and required fumigation can shorten shelf life.
Mexican Autumn Crisp Supply
Mexico’s Autumn Crisp season runs May through July, bridging the gap between South American imports and the start of California’s harvest. Sonora is the main growing state, while Jalisco runs earlier thanks to its warmer climate.
In 2026, Mexican growers in Jalisco began moving fruit in March, with Sonora following in early May. That early start is becoming more common as Mexican acreage expands and growers refine their canopy and irrigation timing.
Why the Autumn Crisp Season Stretches Nearly Year-Round
The Autumn Crisp season nearly covers the calendar because growers in opposite hemispheres run their harvests at opposite times of year. The Northern Hemisphere produces in late summer and fall, then the Southern Hemisphere takes over for late fall, winter, and spring.
Demand drives the rotation too. Autumn Crisp has become the preferred green grape for many top U.S. retailers, so importers work hard to fill every month. The only short window of tight supply is typically the first three weeks of December, when California has wound down and Peru has not yet hit full volume.
The variety’s parentage helps it ship well. It is a cross of Italia, Muscat of Alexandria, and heirloom varieties from Central Asia, bred along with proprietary green seedless lines. Thick skin, low respiration rate, and firm flesh let it hold quality through ocean freight. If you want to understand why the berries themselves are oversized, I cover that in detail in my post on the large berry size of this variety.
How to Tell When Autumn Crisp Grapes Are at Peak Quality
Autumn Crisp grapes reach peak quality during California’s September to October window and during Peru’s February peak. Those are the two stretches where I see the best Brix readings, the firmest texture, and the longest shelf life at retail.
Brix at harvest typically runs 18 to 21 degrees for Autumn Crisp, which is high for a green table grape. Higher Brix means more sugar and more of that snappy crunch the variety is known for. Coachella Valley fruit tends to test slightly higher than San Joaquin Valley fruit because of the desert heat, though Coachella does not grow much Autumn Crisp.
Off-season fruit from late Chile or early Mexico can still eat well, but condition is the wild card. If the cluster has been in cold storage for weeks or fumigated for export, you are more likely to see shatter (loose berries) and brown stems.
How to Pick the Best Autumn Crisp Grapes at the Grocery Store
Pick Autumn Crisp grapes with plump, firm berries, green to slightly amber color, and a light powdery bloom on the skin. Those three signs tell you the fruit is fresh and was handled well from vineyard to store.
Use this checklist when you shop:
- Stems should be green and flexible. Brown, dry, or brittle stems mean the cluster has been off the vine too long.
- Berries should feel firm, not soft. Press one gently. Mushy fruit is past peak.
- Look for the white bloom. That waxy dust is natural and shows the grapes have not been over-handled.
- Check the bottom of the clamshell. Loose berries on the bottom (shatter) signal a tired cluster.
- Read the origin label. California from September to October is your best bet. Peruvian fruit from January through March is the second-best window.
These grapes are also a fully seedless grape variety, so you do not have to worry about pits when you buy a bag.
How to Store Autumn Crisp Grapes After You Buy Them
Store Autumn Crisp grapes unwashed in their original perforated clamshell in the coldest part of your refrigerator. Cold storage at 32 to 36°F holds quality for two to three weeks if the fruit was fresh when you bought it.
Follow these storage steps:
- Leave the clamshell vented. Air movement keeps moisture off the skin and slows mold.
- Do not wash before storing. Water on the surface invites rot. Wash only the portion you plan to eat.
- Keep grapes away from strong-smelling foods. They pick up odors from onions, garlic, and aged cheese.
- Check every few days. Pull off any berries that soften or split before they affect the rest of the cluster.
- Freeze the leftovers. Single-layer freeze on a tray, then bag. Frozen Autumn Crisp keeps six months and makes a great snack straight from the freezer.
If you want to compare the storage and shopping rules with other specialty fruits in the table grape category, I keep that section updated as new varieties hit the market. The handling for newer hybrid types like the cotton candy grape is similar but the flavor peak is a much shorter window.
My Take on Buying Autumn Crisp Year-Round
Autumn Crisp is one of the few green grapes worth buying outside of the U.S. harvest window. The variety travels well, holds Brix, and stays crisp under retail handling. If I had to pick two months to fill a fruit bowl with it, I would go with late September and February. That is when the eating quality is at its absolute best, and the price tends to settle once volume picks up.
For the rest of the year, check the origin sticker, look at the stems and bloom, and trust your eyes more than the marketing on the bag.
