The current El Niño is expected to peak by the end of the calendar year.
London is expected to peak at 10C, while Glasgow will be 6C at the warmest.
Next year, unemployment is expected to peak at just below 3 million, 9.3% of the workforce.
Flooding is expected to peak in New York City between 6pm and 10.30pm, as the high tide coincides with landfall.
China's population is expected to peak in about 10 years at 1.45 billion; the working age population shrank last year.
Adelaide will reach a top of 37C, Melbourne is expected to peak at 30C, and Sydney will reach 28C.
There are 6.8 billion today and this figure is expected to peak at around 9.5 billion by 2050.
But that could soon change: the number of coronal mass ejections is expected to peak within the next few years.
Among skilled workers, HIV prevalence is expected to peak at between a fifth and a quarter by 2005.
Traffic is expected to peak on Friday afternoon as the late spring bank holiday and start of half term coincide with a burst of good weather.
But while production in those areas is expected to peak in a decade or so, the oil sands are expected to remain robust for 30 years or more.
