When Orange Season Is in California

December is the practical target month for a California orange harvest or a tree-ripened purchase; UC Agriculture and Natural Resources identifies December as harvest time for citrus, especially oranges. Navel packing can begin before the main harvest period, so availability may be gradual rather than tied to a single opening day. The variety, growing region, and whether you are shopping, visiting a U-pick orchard, or picking your own tree all affect what is available.

Use this quick guide to match your goal to the season.

What You Want	Practical Timing	What It Means
Tree-ripened oranges or a California orchard visit	December	This is the clearest calendar target for orange harvest.
Early commercial Navel availability	November	Packing can begin before the main harvest period; one Navel schedule was set to begin November 3.
The best fruit from a backyard tree	When a sample fruit tastes ready	Peel color alone does not confirm maturity.
Cara Cara or Blood oranges	Winter citrus displays	Availability depends on the grower, crop, and retailer.

California Orange Season at a Glance

California grows several kinds of oranges, and they do not all reach stores or backyard harvest at exactly the same moment. Navel oranges are the variety most people associate with California winter citrus, while Cara Cara and Blood oranges are specialty types often sought for eating fresh and salads. Valencia oranges are another important California type, often used for juice.

California orange season is a rollout: packing and store availability can begin before the main tree-ripened harvest period.

That distinction matters when planning a visit or shopping for fruit:

Grocery and orchard availability may not line up at the same time.
A backyard orange can look fully orange before it has the flavor you want, while another mature orange may retain some green on the peel.

For the most dependable holiday-season orange shopping or harvesting, look for California fruit in winter and treat December as the best starting point.

How to Time a California Orange Harvest or Purchase

For harvest-oriented plans, target December, while early commercial Navel movement can begin in November and orchard availability depends on the variety.

Step 1: Decide Whether You Are Shopping, Visiting an Orchard, or Picking Your Tree

Start by defining what “orange season” means for your situation.

For grocery shopping, you are looking at commercial packing, shipping, and retailer inventory.
For a U-pick trip, include the orchard’s visitor rules in your planning.
For a backyard tree, you need fruit maturity, not a calendar date alone. Trees can hold mature fruit for a while, which gives home growers some flexibility.

Knowing which situation applies keeps you from assuming that a store display, an orchard’s social post, and your own tree should all line up on the same day.

Step 2: Use December for a Harvest-Oriented Plan

For a California orange harvest, orchard outing, or tree-ripened purchase, use December as your practical target month. That timing aligns with the visible winter harvest period and makes it easier to find oranges that have developed good eating quality on the tree.

If you are trying to buy Navel oranges at the earliest point in the commercial season, look for November movement instead. One Navel packing schedule was set to begin on November 3. That date is useful as an early-market signal, not as a universal opening date for every orchard, packing house, or grocery chain.

Step 3: Confirm the Variety Before You Make a Special Trip

Ask or check for the specific orange you want. “California oranges” can mean several different fruits with different flavors and appearances.

For an orchard or farm stand, confirm:

The variety currently being picked.
Whether fruit is sold pre-picked, available for U-pick, or both.
Whether the orchard requires reservations or has limited public hours.
Whether the crop is oranges rather than mandarins, lemons, or another citrus type.

For grocery shopping, look at the country and state-of-origin label when it matters to you. California citrus can be mixed with fruit from other growing regions, especially when stores aim for year-round displays.

How to Tell When Backyard Oranges Are Ripe

A backyard orange is ready when it has good flavor and juice. Citrus does not become sweeter after it is picked, so harvesting too early usually means eating a sour or bland orange.

Use a sample-fruit test rather than relying on appearance alone:

Choose an orange that looks full-sized and feels heavy for its size.
Pick one fruit without damaging nearby twigs or fruit. Clip the stem if pulling the fruit would tear the peel or branch.
Cut and taste it. Look for balanced sweetness, acidity, and juice.
If it is still sharply sour or lacks flavor, leave the remaining fruit on the tree and test another one later.
Once the fruit tastes good, harvest what you will use or share, handling it gently to avoid bruising.

Mature fruit can retain a slightly greenish cast.

Avoid judging a whole tree from one fruit taken from a shaded branch or an unusually exposed branch. Sample from a representative part of the canopy before harvesting heavily.

Navel, Cara Cara, and Blood Orange Supply

A production forecast can help explain why a particular California orange may seem plentiful or harder to find in a given season. It does not guarantee that a nearby store will have that fruit, but it is useful context for shoppers, farm-stand buyers, and gardeners following the crop.

The USDA NASS 2025–26 California Navel Orange Objective Measurement Report gave an initial forecast of 80.0 million cartons of California Navel oranges, up 6% from the previous year. The forecast includes conventional, organic, and specialty Navel oranges, including Cara Cara and Blood orange varieties.

That total should not be treated as a count of every orange type in California or as a promise of local retail selection. It is a Navel forecast, and specialty fruit is part of that overall picture.

Cara Cara production was forecast at 10.0 million cartons for 2025–26.

Weather, fruit set, acreage, and fruit size can all change the crop.

Finding California U-Pick Oranges

For a Central Valley outing, search for orchards, farm trails, and farm stands in the county you plan to visit. Then confirm availability directly before driving out.

Choose an orchard by asking practical questions:

Which orange variety is ripe now?
Is picking allowed, or is the fruit sold pre-picked?
Are visitors allowed to bring their own containers?
Is there a minimum purchase or admission fee?
Are there posted rules for children, pets, parking, or grove access?
Is the fruit intended for fresh eating, juice, or both?

Online listings and photos may reflect a previous season.

Why Store Oranges and Tree-Ripened Oranges Can Differ

A California orange can be excellent whether it comes from a backyard tree, farm stand, or grocery store, but the experience is different.

Tree-ripened fruit gives you the advantage of sampling before you harvest and choosing the moment that best fits your taste. You can leave fruit on the tree while it continues developing flavor, provided the fruit remains sound and the tree is not overloaded.

Commercial fruit is harvested, packed, graded, and shipped on a schedule.

When choosing store fruit, prioritize oranges that feel heavy for their size and are free of soft, leaking, or moldy areas. Minor surface scarring or uneven color is usually less important than firmness and weight.

For a “tree-ripened” purchase from a farm stand, ask which variety it is and when it was picked. A precise variety name tells you more about the fruit than a broad seasonal label.

Frequently Asked Questions

When do oranges ripen in California?

December is the most useful calendar marker for California orange harvest, especially if you want tree-ripened fruit or are planning an orchard visit. Individual trees and varieties can differ, so taste-testing one fruit is the best way to confirm a backyard crop.

When should I pick Navel oranges in California?

Pick Navel oranges when a sample fruit tastes sweet, juicy, and balanced rather than sharply sour. Commercial Navel packing can start in November, but a backyard Navel should be picked based on flavor, not the first date fruit appears in stores.

Do oranges ripen after they are picked?

No. Oranges may soften somewhat after harvest, but they do not gain sweetness once they are off the tree. If a picked orange is sour, leaving the remaining fruit on the tree longer is more useful than storing it on the counter.

What is the best place to pick oranges in the Central Valley?

The best option is an orchard that confirms it has ripe oranges and public picking available on the day you plan to visit. Look for a farm that names the variety being harvested and clearly explains its U-pick rules, hours, and container policies.