The term September Surge has been circulating on social media and in business press since at least 2023, describing a seasonal uptick in job vacancies after the summer lull. Recent U.S. employment data confirm that August saw 162,000 new jobs added, while the unemployment rate held steady at 4.1%.
What the data show
Kory Kantenga, head of economics for the Americas at LinkedIn, explains that analysts normally strip out predictable seasonal swings, yet those swings still affect job seekers. "You see more job postings in September than you do any other time during the year, and that happens year after year," he told EuroHerald.
LinkedIn's 2025 Economic Graph analysis found that postings typically peak in spring, dip in late summer, then climb again in September and October. In the United States, August listings fell about 3% below March levels before rising 14% above March in September and 11% in October.
Why it matters for applicants
Despite the rise in vacancies, applications tend to peak earlier in the year, between January and May, and then decline. This mismatch can create a favourable environment for late-year job hunters. "If there are only five jobs available, but you're the only person looking, that's still not a bad position to be in, assuming you qualify," Kantenga added.
Data from Indeed's Job Postings Index echo the pattern, showing a modest increase in listings around Labour Day as employers gear up for the fourth quarter and seasonal hiring in retail, transport and warehousing. However, Cory Stahle, an economist at Indeed's Hiring Lab, cautions that the bump is often modest. "It's not typically a very large bump that we see in the job postings data," he said.
September also follows the summer slowdown when hiring managers are often on holiday, meaning interview processes can speed up once the season ends but before the year-end holiday rush.
Sector-specific timing
Some professions have clearer seasonal cycles. Accounting firms, for example, increase postings in late summer to prepare for year-end reporting and the tax season, with a 21% jump from July to August last year, according to Stahle.
Professional-services firms in finance and accounting may post in September and October for roles that start the following summer, creating a lag between posting and actual hiring.
Current hiring climate
Even with the seasonal lift, the broader market remains soft. LinkedIn's hiring rate rose only 2% from July to August, staying more than 20% below pre-pandemic levels. The ratio of jobs per applicant is down 6% from a year ago.
Stahle notes that while there were about 7.3 million openings in July, slightly more than the 7.1 million a year earlier, employers are hiring more slowly and taking longer to extend offers.
LinkedIn reports a "big crisis of confidence" among job seekers, especially among Gen Z, as prolonged searches lead some to quit or return to education. The labour-force participation rate rose modestly to 61.6% in August, still half a point below January's level.
What comes next?
Understanding the typical hiring calendar can help applicants set realistic expectations. Kantenga advises that a tough February may simply be a seasonal dip rather than a personal failing. As September progresses, job seekers should monitor postings, tailor applications to sectors with known autumn spikes, and be prepared for a potentially slower interview rhythm as companies balance year-end planning with upcoming holiday schedules.