The Department of Labour is urging that fatigue be avoided during the summer months, when deaths in the workplace are occur most frequently.
It says workplace deaths usually peak during January, with the agriculture industry having the highest fatality rate.
The department says fatal accidents during summer often happen in the late morning or mid-afternoon.
National support manager Andrew Kea advises drinking plenty of water, taking frequent breaks and avoiding the sun during hotter periods of the day.
He says the most dangerous activity is driving vehicles off-road, which accounts for more than half of all workplace fatalities.