Uganda coffee harvest calendar: main crop vs fly crop timing for arabica and robusta
By Sandra Nansbuga
Uganda coffee harvest calendar: main crop vs fly crop timing for arabica and robusta
Uganda's coffee harvest calendar works on two waves: the main crop runs from October through February and the fly crop follows from April through August. The main crop delivers roughly 70 percent to 80 percent of annual production with the largest, most consistent beans, while the fly crop is a smaller secondary harvest that lets buyers refresh mid-year inventory. For planning, robusta supply peaks around December to January and arabica new-crop arrivals around November to December, when selection is widest and prices sit at seasonal lows.
Main crop vs fly crop
The main crop is the primary harvest, running from October to February for arabica regions and November to February for robusta regions. It produces the bulk of annual volume with larger, denser, more consistent beans. The fly crop is a secondary harvest from April to August, triggered by residual rainfall, producing smaller average beans with more variable quality. Buyers use the main crop for annual volume contracts and the fly crop for mid-year freshness top-ups.
| Attribute | Main crop | Fly crop |
|---|---|---|
| Timing | Oct-Feb (arabica), Nov-Feb (robusta) | Apr-Aug |
| Share of production | 70-80% | 20-30% |
| Bean quality | Larger cherries, denser beans, more consistent | Smaller average size, more variable quality |
| Best buyer use | Annual volume contracts, widest grade selection | Mid-year freshness top-ups |
Best buying windows for contract planning
For arabica, November and December are the strongest months: new-crop lots from Mount Elgon, Rwenzori, and West Nile arrive at the same time, so freshness and specialty selection are at their peak. For robusta, December and January are the better window, when both Central and West Nile regions run at full main-crop capacity and screen sizes from SC12 through SC18, including the largest beans, are most available. Buyers who take most of their annual volume in the main crop and top up from the fly crop balance cost with mid-year freshness.
The tightest point of the year is September, the pre-harvest lull before the main crop begins, when carry-over stock is lowest and prices are at their seasonal high. That is the moment to finalize main crop contracts and logistics.
Frequently asked questions
Q: When does Uganda's coffee harvest season start?
A: The main crop begins in October for arabica regions, Mount Elgon, Rwenzori, and West Nile, and in November for robusta regions, Central and West Nile, running through February. A smaller fly crop follows between April and August.
Q: What is the difference between the main crop and the fly crop in Uganda coffee?
A: The main crop, from October to February, is the primary harvest producing roughly 70 percent to 80 percent of annual production with larger, more consistent beans. The fly crop, from April to August, is a secondary harvest of about 20 percent to 30 percent that is triggered by residual rainfall and typically has smaller average beans and more variable quality.
Q: When is the best time to buy Uganda robusta versus arabica?
A: Robusta is best bought from December to January, when Central and West Nile regions are at peak main-crop supply and all screen sizes are available. Arabica is best bought from November to December, when new-crop lots from Mount Elgon, Rwenzori, and West Nile arrive together at peak freshness.
Sources: Uganda Coffee Guide harvest calendar | Uganda Coffee Guide buyer's guide