South Korea's K League is considering switching from its traditional March-to-November schedule to a European-aligned calendar, running across two calendar years, in response to increasingly extreme summer heat, according to The Guardian.

Korean football is searching for optimal playing times for the K League. Winters have long been too cold, while summers are becoming increasingly hot. Most of the time, weather in the "Land of the Morning Calm" is quite extreme.

A survey released last week showed that over 70% of the 29 coaches in Asia's oldest professional league support a shift from the traditional March-to-November season to a European-aligned calendar, starting in late August with a winter break.

This is a longstanding topic, but discussions have intensified recently as summer temperatures rise. On August 2nd, the temperature in Yangsan reached 42.5 degrees Celsius, the highest recorded value, while Seoul experienced 17 consecutive "tropical nights"—meaning the minimum nighttime temperature did not drop below 25 degrees Celsius.

Fans have fainted in stadiums, and coaches complain about declining match quality. The situation is only getting worse. A report released by the Korea Meteorological Administration in December 2024 indicated that temperatures in South Korea rose by 0.9 degrees Celsius from 2020 to 2024, a concerning figure considering the increase over the past 100 years was only 1.9 degrees Celsius.

The Korean Professional Footballers' Association has called for reform. The association stated: "The K League must transform to protect players from the worsening climate crisis and severe summer heat and to maintain the league's leadership in Asia and global competitiveness."

Players believe that aligning with the European season not only benefits the well-being of players and fans but also facilitates player transfers. Japan has just completed this transition. The J.League previously used the same schedule as South Korea, but starting this year, the new season has switched to a calendar year format.

For a long time, Japanese fans and media have complained that their increasingly talented young players are transferring for relatively low fees. Having the same three-month summer transfer window as Europe should improve this. It also aligns the J.League with the AFC Champions League, which completed its format transition in 2023.

For the Korean league, which has 38 rounds, the problem is that its winters are harsher than Japan's, and a larger proportion of clubs are affected. Enduring the scorching heat in stadiums in summer is unpleasant, but watching matches in sub-zero temperatures is equally uncomfortable. The Korea Meteorological Administration states that summer has extended by 25 days, while winter has shortened by 22 days. If this trend continues, the mid-season winter break may not need to be as long as previously envisioned, but the mid-summer break could become very long.

Reform is better sooner rather than later, and it doesn't necessarily need to cause too much disruption. The J.League previously adopted a separate mini-transition season before the World Cup, running from February to May. The 2030 World Cup might provide an excellent opportunity for South Korea to follow suit.

China uses the same schedule as South Korea, with equally harsh winters in some regions and unbearable summer heat in most areas. Fortunately, the top league has only 30 matches, and given the vastness of the country, scheduling can be more flexible, with matches during the coldest periods able to be held in the south.

This may depend on the J.League's financial performance. Despite concerns that a long mid-season break would affect matchday revenue and interest from fans and broadcasters, officials in Tokyo said before the start of the new season that they expected record revenues. If true, then like fainting fans and sweating players, this could have an impact elsewhere in the region.

Beyond football, the Indian Premier League, the most lucrative event in cricket, is also considering adjusting its March-to-May schedule. IPL chairman Arun Dhumal said in June: "Weather is another challenge we are facing now; May is becoming very hot. We are looking at whether we can find a window from February to April, and later in the second half of the year."

Similarly, after a summer disrupted by heatwaves and wildfires, the Tour de France also has many issues to ponder. The situation became so bad that spectators were asked to stay away from the final stages of the race for their own safety.

Yvon Ledanois, sports director of Astana Qazaqstan, told RMC Sport: "We have never experienced anything like this. It's not one day hot and the next day back to normal. No, every day is extremely, extremely, extremely hot."

At present, rescheduling the 120-year-old event, which has always been held in July, does not seem to be on the agenda, but adjusting stage start times to avoid the hottest part of the day may not be far off. In Korea and elsewhere, future flexibility is key.

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