Seasonal Workforce Planning: How to Staff Peak Before the Rush Hits
Peak season is predictable, the date it arrives, the volume it brings, the labor it demands. Yet most warehouses treat seasonal staffing as an emergency every year: scrambling for bodies in October, overpaying for last-minute labor, and training people the week the volume lands. Planning ahead turns that annual fire drill into a competitive advantage.
The employers who sail through peak aren't lucky, they started planning their seasonal workforce months early. This guide covers why seasonal planning matters, how to forecast the labor you'll actually need, and the playbook to staff peak without the last-minute scramble or the post-peak overhang.
Why seasonal planning beats seasonal scrambling
Seasonal demand is one of the few things in a warehouse you can see coming. You know peak is arriving, roughly when, and roughly how big. Yet the common approach is to wait until the volume is nearly here, then scramble for labor alongside every other warehouse in the region doing the same thing.
That scramble is expensive. U.S. retailers made around 442,000 seasonal hires in 2024, and a single player like Amazon planned to hire 250,000 for a recent peak. You are competing for workers against all of them at the exact same moment, which drives up cost and drives down the quality of who's left when you finally hire.
Everyone hires for peak at the same time. The employer who planned in summer picks from the best of the pool; the one who waits until October takes what's left, and pays more for it.
Planning ahead flips the dynamic: you secure labor before the crunch, train before the volume lands, and walk into peak ready instead of reactive, the same "prepare early" principle behind the operational side of peak in the peak season fulfillment readiness playbook.
Forecasting the labor you'll actually need
Good seasonal staffing starts with a real number, not a gut feel. The goal is to translate expected peak volume into the headcount, by role and shift, you'll need to hit it, without overshooting into idle labor.
Questions your seasonal labor forecast should answer
- What peak volume are we planning for, and how does it compare to a normal week?
- How many workers, by role (pickers, packers, forklift operators), does that volume require?
- Which shifts need the most added capacity?
- How long is our ramp, when do people need to be trained and productive by?
- What's our plan if volume runs higher, or lower, than forecast?
Forecast labor the way you forecast inventory. Peak volume is knowable; the headcount to handle it is just math, if you do the math before October instead of reacting in December.
Base the forecast on last peak's actuals adjusted for growth, your promo calendar, and any new channels or accounts. The point is to walk into hiring with a target, so you're staffing to a plan rather than guessing shift by shift.
The seasonal staffing timeline
The single biggest predictor of a smooth peak is how early you start. Here's a rough backward-planning timeline from a Q4 peak, adjust the lead times to your own ramp.
| When | What to do |
|---|---|
| 3–4 months out | Forecast peak volume and translate it into headcount by role and shift |
| 2–3 months out | Line up your staffing plan and partner; begin sourcing so you're first in the pool |
| 1–2 months out | Hire and onboard early waves; train before the volume lands |
| Peak | Run with a trained, ready team; keep a bench for surges and no-shows |
| Post-peak | Scale down cleanly; convert your best seasonal workers to permanent |
By October, the good workers are already spoken for. The employers who win peak did their sourcing in summer, when the pool was deep and the rates were saner.
Training lead time is the part most often underestimated. New warehouse hires need time to reach safe, full productivity, so hiring the week volume lands means running peak with workers who aren't ready, exactly when errors and injuries are most costly. Build the ramp in, as covered in how fast placement actually works.
Staffing models for peak
There's no single right way to staff seasonal demand, only the right mix for your operation. Most warehouses combine a few of these.
The options
- Temporary/seasonal workers via a staffing partner, scale up for the window, release cleanly after
- Temp-to-hire, use peak as a working interview for permanent roles
- Extra hours for current staff, but watch burnout and overtime cost
- A standby bench, extra vetted candidates ready for surges and no-shows
How to choose the mix
- How sharp and how long is your peak?
- Do you want to convert seasonal workers to permanent?
- How much overtime can current staff absorb without burning out?
- How much surge risk do you need a bench to cover?
Overtime is the most expensive seasonal labor there is. Leaning on it because you didn't plan ahead costs more, and burns out the reliable people you most want to keep.
Temp and temp-to-hire through a staffing partner is the most flexible core, it scales up for the window and back down without carrying cost, and turns strong seasonal workers into permanent hires, the model detailed in temp-to-hire for peak season.
The part everyone forgets: scaling back down
Seasonal planning gets almost all its attention on the ramp up. But scaling back down after peak matters just as much, and handled badly it eats the savings the season earned. Carry too much labor into January and you're paying for idle capacity; cut too hard or too clumsily and you damage your reputation and lose workers you'd want back.
How you end the season shapes the next one. Workers talk. Handle the wind-down with respect and clear communication and they'll come back, and tell others, next peak.
The cleanest wind-down is planned from the start: a staffing structure that flexes down as naturally as it flexed up, clear communication with seasonal workers about timing, and a deliberate plan to convert your best performers to permanent roles rather than losing them. That conversion is how each peak feeds your permanent bench, the pipeline connection from the retention side of the business.
Peak labor calculator
Estimate the seasonal headcount you'll need, and see the gap between an average day and your peak.
Peak workload (in current-worker equivalents): 120
Seasonal workers to add (adjusted for ramp): 107
That's the bench you need lined up and trained before peak, not scrambled for in October.
Illustrative planning math: peak workload minus current capacity, grossed up for new-hire ramp. Refine with your real rates.
Your seasonal-readiness check
Check the statements that are true for your operation today. This is a fast read on whether you're planning peak labor, or about to scramble for it again.
Tip: start checking boxes to see guidance.
Peak is coming, and it's coming on a schedule you can see. The employers who staff it smoothly treat seasonal labor as a plan built months ahead, forecast the headcount, source early, train before the volume lands, and scale back down cleanly, converting the best workers to permanent along the way. That's the difference between riding peak and surviving it.
Starboard helps employers plan and staff peak season with dependable, ready-to-work talent, scaling up for the rush and back down cleanly after. If peak is around the corner, the time to plan is now.
Frequently Asked Questions
Months ahead, ideally 3 to 4 months before peak. That lets you forecast headcount, secure labor before the region-wide October scramble, and train workers before the volume lands. By the time most employers start hiring, the best of the seasonal pool is already spoken for and rates have climbed.
Translate expected peak volume into headcount by role and shift: start from last peak's actuals, adjust for growth, promotions, and new channels, and account for new-hire ramp (seasonal workers aren't at full productivity immediately). The goal is a real target you can staff to, rather than guessing shift by shift in the moment.
Most warehouses use a mix: temporary/seasonal workers through a staffing partner for flexible scale, temp-to-hire to audition permanent candidates, some extra hours for current staff, and a standby bench for surges. Temp and temp-to-hire is usually the flexible core because it scales up and back down without carrying cost.
Because it protects both cost and reputation. Carrying too much labor into Q1 means paying for idle capacity, while cutting clumsily damages your standing with workers you'd want back. A planned, respectful wind-down, plus converting top performers to permanent, keeps costs in check and makes next peak easier to staff.
In moderation, but it's the most expensive seasonal labor there is, and leaning on it usually signals the plan was made too late. Excessive mandatory overtime also burns out your reliable staff, driving the very turnover you can least afford during peak. Planned, flexible seasonal capacity beats reactive overtime on both cost and stability.