Seasonal eating: what's cheap when

In September 2026, vegetable prices fell 3.0% in a single month, according to Statistics Botswana's CPI release. That was the biggest monthly drop in the food basket — and a reminder that produce prices are not a straight line. They breathe with the season.

Buying with that rhythm is not nostalgia. It is the simplest unit-price win in the shop: the same cabbage, the same tomatoes, cheaper because supply is heavy.

Why seasonal is cheaper

Three forces stack up:

1. Supply. When local harvests land, volume rises and prices fall.
2. Transport and storage. Produce that travels far, or sits in cold storage, carries costs that seasonal local supply does not.
3. Quality and waste. In-season produce is often fresher, keeps longer, and needs less trimming — so the effective cost per edible portion is lower.

The same logic runs in reverse out of season: prices rise, quality drops, and waste increases.

A rough Botswana rhythm

Seasons vary by region and by year, so treat this as a guide, not a calendar:

• Rainy season (roughly November–March): leafy greens and maize-related produce are plentiful; tomatoes and some fruits can be uneven. Expect price swings after heavy rain.
• Cool, dry months (roughly April–September): cabbage, carrots, onions and potatoes tend to hold up well; tomatoes can be expensive out of season.
• The gap months: when local supply thins, imports fill the shelves — convenient, but usually at a premium.

The practical rule: buy what looks abundant and cheap that week, and build the meal around it, rather than deciding the meal first and paying for the ingredients.

Reading the season in your own slips

You do not need a market report. Your receipts already tell you:

• Track three vegetables you buy often — cabbage, tomatoes, onions, for example.
• Note the unit price (per kg) each time. Two or three months of slips shows the pattern.
• When a price drops sharply, that is the week to buy more and cook around it.

This is exactly the kind of trend Breadwinner surfaces from your slips: unit costs per line, over 7 days free or 90 days on Premium.

Making the surplus work

Seasonal buying only saves money if the food gets eaten:

• Plan two or three meals around the cheap vegetable that week — soup, stew, stir-fry.
• Prep and freeze what you cannot use in time: chopped onions, blanched greens, cooked sauces.
• Share or swap with family and neighbours if you bought too much — a crate of tomatoes is only cheap if it is not thrown away.
• Keep it cool and dry. Storage conditions decide whether "cheap" stays cheap.

When seasonal is not worth it

Two honest exceptions:

• Convenience has a price, and sometimes it is worth paying. Pre-cut vegetables cost more per kilo; if they save you 40 minutes on a workday, that may be a fair trade.
• Imports can be the better buy when local quality is poor. A cheap cabbage that is half waste is not cheap.

The arithmetic, not the romance

Seasonal eating is often marketed as a lifestyle. Treat it as arithmetic instead: buy the produce that is in heavy supply, check the unit price, and plan meals that use it fully. The savings are real, but they come from the pattern — not from a single heroic shop.

For the wider picture on how food prices move, read Reading inflation in your own trolley. And for the pack-size version of the same lesson, see The unit-price trap.

Scan your first slip — free, 10 slips a month, no card: app.breadwinner.deals

Sources

• Statistics Botswana, Consumer Price Index — September 2026 (published 15 October 2026): Food & Non-Alcoholic Beverages −0.6% month on month; vegetables −3.0%. PDF

Seasonal patterns vary by region and year; the method (track unit prices, buy abundance) is what travels.