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Price forecast · data of 13 Nov 2026
Grapefruit price forecast for the next 12 weeks
14 wholesale grapefruit price series from 14 markets in Japan have a forecast. The median series points to a rise over the coming weeks (+13.5% by the end of the forecast), against a typical 12-week error of 11%. Below: when grapefruit is usually cheapest and dearest in 2 countries.
When is grapefruit cheapest? Seasonal price calendar
Usual wholesale price in each month against the yearly average, by country.
Grapefruit wholesale prices by month, percent above or below the yearly average
Country
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Cheapest
Dearest
🇯🇵 Japan18 series · 18 markets · 2024–2026
+13
+14
+11
+9
+4
−7
−11
−14
−16
−6
+6
+15
September
December
🇵🇱 Poland1 series · 1 market · 2018–2026
+2
+0
+4
−4
+1
+9
+7
−0
−10
−9
−5
+2
September
June
cheaper than the yearly average · dearer · figures in % · · no quotes in that month (season or data gap). Monthly averages of each series against its yearly average, after removing the long-term trend such as inflation; median across series and markets of the country, years with at least 10 months of quotes.
A statistical forecast, not advice
The forecasts extend each series’ own seasonal pattern; they do not know about this year’s weather, harvests, policy or currency moves. Use the range, not only the central figure, and do not base trading, purchasing or credit decisions on them alone.
Questions and answers
Will grapefruit prices go up or down in the coming weeks?
Of 14 grapefruit price series with a forecast, 14 point higher and 0 lower or flat by the end of the forecast; the median series points to a rise (+13.5%). The forecasts repeat what the season usually does and are recalculated daily (data of 13 Nov 2026).
When is grapefruit cheapest?
In Japan, wholesale grapefruit prices are usually lowest in September (−15.9% against the yearly average) and highest in December (+14.6%), based on 18 price series from 18 markets, 2024–2026. The calendar on this page shows 1 more country.
How accurate is the grapefruit price forecast?
In tests on the last 52 weeks of each series, the typical 12-week error of the published grapefruit forecasts was 11%. Each series passed the test only because its errors were smaller than those of a “no change” forecast. Results of the archived forecasts are on the accuracy page.
Where do the grapefruit prices come from?
From the wholesale markets and price services listed on each series, as published, in their own currencies and units. Husfarm does not adjust them except to compute weekly and monthly averages.
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