Seasonal worker safety: managing risk with a changing workforce

If your workforce changes significantly at certain times of year — harvest season, a kiwifruit or apple pack run, a peak logistics period — you already know that managing those transitions is complicated. Hiring surges, training ramp-ups, unfamiliar faces in high-risk areas, and the relentless pressure to maintain throughput while everything is moving faster than usual.

What does not always get enough airtime is what all of that means for safety.

The short version is this: seasonal and temporary workers face a considerably higher risk of injury than their permanent counterparts. Research by A-SAFE found that temporary workers are 2–3 times more likely to be injured than permanent workers in warehouse environments. National Safety Council data suggests injury rates in warehousing and retail can rise by up to 15% during peak shopping periods. And the broader picture, from Travelers Insurance's analysis of more than 2.6 million workers' compensation claims, is that over a third of all workplace injuries occur in an employee's first year — a category that includes almost every seasonal hire.

None of this is a reason to panic. It is a reason to plan.

Why seasonal workers face higher risk

There are a few things going on here that are worth understanding, because they shape the solutions.

Unfamiliarity. Seasonal workers are new to the environment, the equipment, the traffic flows, and often the team dynamics. They do not yet know which forklift operator takes that corner fast, or that the loading bay gets chaotic at 4pm when the second delivery truck arrives. That knowledge takes time to accumulate — and in the first few weeks, its absence creates risk.

Production pressure. Peak season is, by definition, high-pressure. Throughput targets are elevated. Supervisors are busy. The implicit (and sometimes explicit) signal is: go fast. For a worker still figuring out the basics of the environment, that pressure frequently wins out over caution.

Fatigue. Extended shifts and overtime are common during peak periods. Research from multiple sources consistently shows that fatigue is one of the top contributors to warehouse injuries — slower reaction times, impaired judgement, and misjudged distances are all consequences of tiredness that compound the existing risk of a busy, high-speed environment.

Language and cultural barriers. In New Zealand and Australia, seasonal workforces frequently include workers from Pacific countries, RSE (Recognised Seasonal Employer) scheme workers, and international visa holders. Under the RSE Employer Pastoral Care Guide from Immigration New Zealand, employers are explicitly required to provide language translation for health and safety instructions if workers' English is limited. That requirement exists because unaddressed language barriers create genuine safety gaps — not because RSE workers are less capable, but because a safety procedure you cannot fully follow is not an effective safety procedure.

The WorkSafe NZ 2021 workplace health and safety literature review notes that Māori and Pasifika workers have higher rates of work-related injuries than other ethnic groups in New Zealand, with injury claim rates around 100 per 1,000 FTEs compared to 83 for Europeans. The review notes this likely reflects an over-representation in high-risk industries and occupations — including seasonal horticulture, warehousing, and logistics.

What the law actually says

Your obligations to seasonal and temporary workers under New Zealand's HSWA and Australian model WHS laws are the same as your obligations to permanent employees. The PCBU duty of care does not have a carve-out for short-term engagements.

This matters because some organisations operate, consciously or not, on the assumption that temporary workers are "less their responsibility" — particularly when those workers come through a labour hire agency. Under Safe Work Australia's labour hire guidance and WorkSafe Victoria, both the labour hire agency and the host employer carry WHS obligations. The agency must ensure workers are suitably inducted and trained. The host employer must ensure the workplace is safe and provide a site-specific induction. Neither obligation cancels the other out.

WorkSafe's New Zealand GRWM Regulations 2016 require that training is readily understandable to the person receiving it — which, combined with the RSE pastoral care requirements, puts language accessibility firmly in the employer's court.

In horticulture specifically, WorkSafe has been active. Between July and September 2025, WorkSafe inspectors assessed 659 horticulture businesses across New Zealand. Significant gaps in machine guarding and chemical management were found, with 69% of businesses receiving guidance and support. Horticulture is a named priority sector for WorkSafe — meaning if you employ seasonal workers in this industry, you are more likely to receive a proactive visit, not less.

When does seasonal risk actually peak?

It depends on your industry, but it is useful to name the common patterns.

For horticulture and food processing, the risk peaks during harvest — when RSE and seasonal workers arrive, often having not worked in that environment before, and when the pace of work is immediately high. The first few weeks are the most dangerous. Packhouses are a particularly relevant example: kiwifruit packing operations, for instance, can scale from a small permanent team to hundreds of workers within days at the start of the season. Conveyors, graders, bin stackers, and constant forklift movement throughout the facility create a complex, high-traffic environment that takes time to navigate safely — time that new workers often do not have before they are on the floor and productive. WorkSafe has identified horticulture as a priority sector precisely because of this dynamic.

For warehousing and logistics, the risk concentrates during periods of high throughput — end-of-financial-year stock movements, major promotional events, or periods of elevated import/export activity. A significant proportion of the workforce at these times is temporary. A-SAFE's research notes that warehouse injuries increase by over 50% in peak seasons as volumes, staff numbers, and pace all rise simultaneously.

For food manufacturing and processing, seasonal demand cycles (summer produce, end-of-year production runs) bring similar patterns: rapid intake of workers who are unfamiliar with equipment and floor layouts in facilities where the consequences of a mistake are significant.

What all of these have in common is a compressed timeline: large numbers of workers who are new to the environment, onboarded quickly, dropped into a high-pressure operational context. That combination is where most preventable injuries happen.

Practical ways to manage the risk

A few things that make a genuine difference:

Start safety before day one. The onboarding process does not have to begin when a worker walks through the door. Sending clear, accessible information about the workplace layout, the types of hazards present, and what to expect on the first day reduces the cognitive load on arrival and signals that safety is taken seriously before any formal induction begins.

Make inductions site-specific, not generic. A walkthrough of the actual facility — showing the high-risk zones, the forklift routes, the exclusion areas, the emergency exits in their real locations — is worth more than any amount of generic video content. If your induction has not changed in three years, it is probably not tailored to the current risks in your facility.

Use visual and video-based materials for multilingual workforces. For RSE workers, agency staff from non-English-speaking backgrounds, or any worker whose primary language is not English, written procedures are often not enough. Short video clips showing the actual tasks and hazards in your facility remove the language barrier more effectively than translation (which still requires literacy in another language). inviol's automated toolbox talk capability, which uses footage from your own facility, is well suited to exactly this use case.

Buddy systems matter more at peak. Pairing seasonal workers with experienced permanent colleagues — not just for day one, but for the first few weeks — gives them a trusted source of real-world knowledge and reduces the reluctance to ask questions that drives so many first-week incidents.

Take fatigue seriously during long periods. Scheduling adequate rest breaks, monitoring shift lengths, and creating genuine permission for workers to flag exhaustion are not soft options during peak — they are operational necessities. Tired workers make more mistakes. In a high-traffic warehouse environment, those mistakes have consequences.

Keep your eyes on what is actually happening, not just what is being reported. One of the consistent challenges of seasonal periods is that near-miss reporting drops at exactly the time it matters most. Workers are new (and less likely to know the reporting process), supervisors are stretched, and there is an implicit pressure to keep moving. This means your safety incident data during peak season systematically underrepresents the actual risk level — which is a problem if that is what your safety management decisions are based on.

The visibility gap during peak season

That last point is worth expanding, because it connects to something practical.

During peak season, your facility is running at its most complex: more workers, higher speeds, more forklift movements, more loading activity, more opportunities for pedestrian-vehicle conflict. Your supervisors are busiest at exactly the moment visibility matters most.

Continuous monitoring with computer vision AI gives you objective, real-time information about what is actually happening in your highest-risk areas — independent of self-report, shift pattern, or supervisory bandwidth. When inviol is running, detected events do not disappear because a new worker didn't know they should report them. They are captured, time-stamped, and available for review.

This changes how you can support seasonal workers specifically. Rather than coaching based on what workers remember or what supervisors happen to observe, supervisors can review actual footage of specific events — with faces blurred — and have grounded, concrete conversations with new workers about what happened and what should happen differently. That kind of specific, evidence-based coaching lands very differently from a generic "be careful around forklifts" conversation.

Across inviol customers, average risk reduction is up to 67%, with up to a 42% reduction in incidents over three years. For operations that cycle through significant seasonal workforces, the ability to identify risk patterns as they emerge — rather than waiting for incident data — is particularly valuable. Peak season is not the time to find out your induction missed something.

To see how inviol supports safety through peak periods and changing workforces, book a demo.

Frequently Asked Questions

Are temporary and seasonal workers covered by the same safety laws as permanent employees?

Yes. Under New Zealand's Health and Safety at Work Act 2015 (HSWA) and Australia's model WHS laws, the PCBU duty of care applies equally to all workers, regardless of employment type or duration. In labour hire arrangements, both the agency and the host employer carry overlapping obligations — the agency for general induction and training, the host employer for site-specific safety.

Why are seasonal workers more likely to be injured?

The main factors are unfamiliarity with the specific environment, production pressure during peak periods, fatigue from extended shifts, and (in some workforces) language and cultural barriers that limit how effectively safety information is communicated. Research suggests temporary workers are 2–3 times more likely to be injured than permanent workers in warehouse environments.

What are an employer's obligations to RSE workers around safety in New Zealand?

RSE employers must meet WorkSafe NZ's H&S standards and, under Immigration New Zealand's RSE Employer Pastoral Care Guide, are required to provide language translation for health and safety instructions where workers' English is limited. The HSWA's requirement that training be "readily understandable" applies to all workers.

How does injury risk change during peak season in warehousing and logistics?

Research from A-SAFE indicates warehouse injuries increase by over 50% during peak seasons. National Safety Council data suggests injury rates in warehousing and retail may rise by up to 15% during peak shopping periods. The combination of temporary workers, extended shifts, higher speeds, and increased forklift activity drives this increase.

How can AI monitoring support safety during periods of workforce change?

Continuous monitoring ensures that safety events are detected and recorded regardless of whether new workers know the reporting process or supervisors are available to observe. This prevents the near-miss reporting gap that typically widens during peak season, and provides specific, objective footage that supports targeted coaching conversations with new workers during their highest-risk period. ---