A region-by-region, month-by-month look at Indonesia’s 2026 shallot season with real export timing, curing targets, and shipping windows to nearby markets. Built from years on the ground in Brebes, Cirebon, East Java, and Bima.
If you buy or trade Indonesian shallots, you already know the headache. Peaks that arrive two weeks late. Containers you can’t book when you finally have volume. Bulbs that look fine at loading but sprout by the time they reach Singapore. We’ve lived those weeks. This 2026 guide is the export-focused calendar we use internally to plan contracts, curing, and sailings across Brebes, Cirebon/Indramayu, East Java, and Bima (NTB).
The warning signs everyone missed last year
We saw three quiet shifts in 2025 that will shape 2026 decisions.
- Planting crept earlier in pockets of West and Central Java as farmers chased better prices after a soft Q3 2025. That pulls some first flushes into late April–May 2026.
- Rainfall bands were more erratic at the start and tail of the monsoon. That widened quality variance within the same regency. Buyers who specified farm clusters did better than those who bought “region average.”
- Reefer availability tightened around Ramadan/Eid cargo in Q1–Q2, cascading into June–July ag exports. Booking lead times quietly doubled in some ports.
Takeaway: 2026 will reward precise origin targeting and earlier capacity reservations more than any fancy pricing model.
Data analysis: what the 2026 monsoon means for timing
We watch BMKG’s seasonal outlook and ground rain gauges. The safe planning baseline for Java and NTB:
- Rainy season: November–March, tapering through April.
- Dry season: June–September, with a shoulder in May and October that can swing either way.
In our experience, two to three cropping cycles per region are typical. Dry-season crops deliver the cleanest skins and the most exportable tons. A wet shoulder adds curing days and increases fungal pressure. This leads us to the calendar itself.
Region-by-region 2026 exportability map
Here’s the practical, month-by-month view we use. Windows can shift one to three weeks depending on local rainfall and input timing, so treat this as a contracting guide and confirm lots two to three weeks out.
What are the peak harvest months for Brebes shallots in 2026?
- Brebes (Central Java)
- First window: late April–June. Good volumes start mid-May. Best export lots are typically late May–June.
- Second window: September–October. Quality is strong when September stays dry. If October turns wet, expect longer curing and some skin staining.
- Light third flush: December in irrigated pockets, but we rarely target this for export due to rain risk.
Cirebon and Indramayu seasonality
- Cirebon/Indramayu (West Java north coast)
- First window: May–June. Slightly later than Brebes’ earliest fields.
- Second window: August–September. Good for steady programs. Indramayu tends to dry quicker post-harvest than Cirebon in humid weeks.
East Java Probolinggo/Nganjuk/Nganjuk cluster
- East Java (Probolinggo, Nganjuk, Kediri)
- First window: June–August. Often the most reliable export stretch of the year with clean bulbs and strong skin set.
- Second window: October–November if irrigation and late plantings line up. Watch November rain.
Bima NTB season
- Bima (NTB)
- Main window: May–July. Bima comes in early and can bridge gaps between Brebes’ first window and East Java’s peak.
Which regions offer exportable shallots in June–August 2026?
- June: Brebes late lots, Cirebon/Indramayu, Bima early-mid, East Java begins.
- July: East Java peak, Bima mid, Cirebon/Indramayu steady. Brebes tails off.
- August: East Java peak, Cirebon/Indramayu steady to tail. Smaller, high-quality pockets in irrigated Brebes fields.
Practical takeaway: If you need consistent June–August supply, pair East Java with Cirebon/Indramayu. Use Bima to cover any late-June gaps.
Curing, moisture, and shelf life you can actually hit
How many days should shallots be cured before export to keep moisture below 12%?
Here’s the thing. Fresh shallots don’t reach 12% total internal moisture. That number belongs to dehydrated product. For fresh export you’re aiming for sealed necks, papery outer skins, and low free-surface moisture so bulbs don’t sweat or rot in transit.
What we do:
- Field pre-cure: 2–3 days on racks under shade if weather allows.
- Forced-air warm curing: 30–35°C for 48–72 hours to dry necks and outer skins without cooking the bulb.
- Ambient finish: 7–10 days with strong airflow. Target 4–6% weight loss from harvest to packing. Skins should “rustle,” necks fully sealed, zero surface tackiness.
Storage and shipping targets:
- Reefer setpoint: 0–2°C with 65–75% RH when the product is fully cured. Pre-cool the load. Avoid mid-range temps (10–20°C) that trigger sprouting.
- Ambient short-haul: Works in dry season for cross-border moves under 5–7 days, but your risk jumps in humid weeks.
- Expected shelf life: 6–10 weeks at 0–2°C with proper curing. Three to five weeks at 25–30°C ambient in dry conditions.
Can Indonesian shallots go by sea to Singapore/Malaysia without sprouting?
Yes. For Java or NTB to Singapore/Malaysia, total door-to-door is typically 5–7 days. With fully cured bulbs, you can ship ambient in ventilated containers in the dry season. We prefer reefers set at 0–2°C if humidity is spiking or if port dwell could stretch. Pre-cool product, line containers to reduce condensation, and avoid loading hot afternoon product.
Ramadan timing and demand spikes
What is the best window to ship for Ramadan 2026 demand?
Ramadan 2026 is expected to begin in mid-February and run to mid-March, subject to moonsighting. Retail and HORECA pull usually builds two to three weeks before the start.
- Ideal arrival: late January to early February.
- What that means upstream: Contract late-December to early-January harvest in irrigated pockets or controlled environments, and lock capacity early. Quality risk is higher in the wet season, so specify curing standards and accept slightly higher losses in QC to protect brand and shelf life.
Rain, quality, and what changes in a wet shoulder
How does the 2026 rainy season affect drying and quality?
Rain complicates skin set and increases fungal pressure. We adjust by:
- Moving to covered racks immediately after lifting.
- Extending warm-air curing to 72–96 hours if necks are slow to seal.
- Tightening inbound QC on neck sealing and external damage. One soft neck can compromise a full net bag in warm holds.
In a wet shoulder month, we also avoid mixed-age loads. Uniform maturity cures more predictably.
Capacity planning that actually prevents delays
When should I reserve reefer containers for the 2026 shallot peak?
Our rule of thumb:
- For June–August peak: Book 3–4 weeks ahead for Surabaya and Semarang loadings. Two weeks can work in quiet weeks, but 3–4 gives you equipment certainty.
- For Ramadan/Eid-adjacent periods: Book 4–6 weeks ahead. Reefers tend to be tight due to protein and processed-food movements.
If you’re running weekly programs, secure a rolling block allocation and keep a backup forwarder live. I’ve found that’s the single best buffer against surprise rollovers in July.
Winners and losers in 2026
- Likely winners: East Java June–August. Consistent skin quality and volumes. Cirebon/Indramayu in August when humidity behaves.
- Conditional winners: Brebes in late May–June when rain exits on time. September is strong only if early October stays dry.
- Riskier windows: December–February fresh exports from Java. Can be done, but you must invest in curing infrastructure and accept higher grading losses.
3 survival strategies for buyers
- Contract by micro-origin, not just “Brebes.” Name the kecamatan or farm cluster and write the curing spec into the PO. You’ll cut variance in half.
- Align your ship dates with real curing time. Many importers shave three days off curing to “catch the vessel.” Those are the loads that sweat in transit. Missing a sailing is cheaper than a claim.
- Build a dual-mode shipping plan. Have an ambient plan for short, dry-season weeks and a cold-chain plan ready when humidity spikes. Switching modes is faster than resourcing new origin.
Predictions for the next 12 months
- Two clear export peaks will emerge: May–June and August–October. June–August will be the most stable export stretch.
- Reefer equipment will be tight around late January–March due to Ramadan pull. Expect spot rate bumps on short-haul lanes.
- Quality spread within regions will widen in shoulder months. Buyers with on-the-ground grading will outperform catalog buyers.
How exporters are adapting (and what that means for you)
We and our partner farms invested in modular curing tunnels with forced-air at 30–35°C and humidity control. That shrinks cure time by two to three days and delivers more uniform neck seals. We’re also tightening harvest-to-processing windows to under 8 hours whenever possible and using moisture meters for batch comparisons. Translation for buyers: ask for batch-level curing logs and pre-load temperature checks. The suppliers who have them are the ones who won’t surprise you at destination.
Opportunities in the volatility
- Program June–August arrivals to Singapore/Malaysia and take advantage of lower claim risk. Use Bima to bridge if Java gets patchy in late June.
- Land a smaller, premium-curing program for Ramadan 2026. It’s not the cheapest period, but retail shelves will pay for consistency.
- Pair shipments with cross-dock partners to keep dwell under 24 hours on arrival. Fast clearance is your best anti-sprout tactic after good curing.
Action items for importers and procurement teams
- This month: Map your weekly needs from May through October. Identify two origins per month to avoid single-point risk.
- 6–8 weeks before Ramadan: Lock capacity, agree QC specs for wet-season lots, and schedule pre-shipment inspections.
- 4 weeks before June peak: Reserve reefers and confirm backup forwarder. Set curing specs in POs and require lot-level photos and neck-seal checks before loading.
- Two weeks before each sailing: Reconfirm farm cluster weather and curing status. Don’t be shy about pushing back a week. Arriving right beats arriving fast.
Need help overlaying this calendar onto your forecast or planning sailings into Singapore/Malaysia? Share your target arrivals and we’ll pressure-test the plan with live origin data. You can Contact us on whatsapp and we’ll respond with a customized month-by-month supply map and recommended ship modes.