This year is on course to become one of the hottest, if not the hottest, on record, according to a provisional analysis by the World Meteorological Organization (WMO).
The organisation's provisional Status of the Global Climate in 2014 indicates that global average air temperature over land and sea between January and October was about 0.57°C above the average of 14°C for the 1961-1990 reference period, and 0.09°C above the average for the past ten years.
This was despite the absence of an occurrence of the El Niño weather phenomenon this year, which can impact on weather patterns around the world.
A continuation of the trend through November and December would leave 2014 ahead of the previous hottest years on record - 2010, 2005 and 1998 - and confirm an underlying long-term trend of global warming.
"The provisional information for 2014 means that 14 of the 15 warmest years on record have all occurred in the 21st century," said WMO Secretary-General Michel Jarraud.
"There is no standstill in global warming. What we saw in 2014 is consistent with what we expect from a changing climate."
"Record-breaking heat combined with torrential rainfall and floods destroyed livelihoods and ruined lives.
"What is particularly unusual and alarming this year are the high temperatures of vast areas of the ocean surface, including in the northern hemisphere.
"Record-high greenhouse gas emissions and associated atmospheric concentrations are committing the planet to a much more uncertain and inhospitable future."
The WMO says record high global sea surface temperatures are the main driver of this year's trend.
These temperatures along with other factors, contributed to exceptionally heavy rainfall and floods in some areas and extreme drought in others.
However, the WMO points out that different data sets show slightly differing results, and differences of a few hundredths of a degree can impact on the warmest year rankings.
When it comes to land surface temperatures, the analysis found that Western North America, Europe, eastern Eurasia, much of Africa, large areas of South America and southern and western Australia were especially warm.
Cooler-than-average conditions for the year-to-date were recorded across large areas of the United States and Canada and parts of central Russia.
Sea surface temperatures in the eastern tropical Pacific approached El Niño thresholds.
They were also unusually high in the western tropical Pacific Ocean, across the north and northeast Pacific as well as the polar and subtropical North Atlantic, southwest Pacific, parts of the South Atlantic and in much of the Indian Ocean.
The minimum Arctic sea-ice extent was the sixth lowest on record.
The statement comes as climate change negotiations continue in Lima in Peru.
A final analysis for 2014 will be published in March next year.