A UN agency says 2018 is on track to be the fourth hottest since records began.
The World Meteorological Organisation says the 20 warmest years on record have all been in the past 22 years - while the top four have been in the past four years.
In the year to October, the global average temperature was almost 1°C above the 'pre-industrial baseline'.
The Ministry of Social Development and Family Services has set up a hotline in an effort to render support to those residents who were affected by last week’s flooding in south Trinidad.
The Met Office has dropped the Riverine Flood Alert from orange to yellow.
The Met Office says water levels continue to decrease over southern Trinidad.
However, there are a few areas still experiencing some flooding.
Additional;u, it notes that rainfall is possible during the afternoon and evening, although the general trend is for river levels to continue to subside.
It says persons should monitor weather conditions and river levels, updates from official sources and plan safety measures, including emergency supplies of food and water.
Penal/Debe residents are begging for assistance from the T&T Regiment now, as hundreds of residents remain trapped in their homes by rising flood waters.
With the high tides expected between 11 am to 6 pm, the Penal/Debe Regional Corporation disaster management team is working feverishly to evacuate residents from areas including Boodoo Trace, Ragbir Trace, Gopie Trace, Tulsa Trace, Clarke Road, Rochard Road, Penal Rock Road, Barrackpore Trace and along the Rochard Douglas Road.
The Met Office has cancelled the Adverse Weather Alert and has returned the level to green.
It says conditions have settled over Trinidad and Tobago.
However, it says a few lingering showers will continue overnight and a low chance of thunderstorms are expected in a few areas tomorrow.
It notes that it will take some time for flooding to subside in areas that were adversely affected.
A Riverine Flood Alert remains in effect at the orange level and a Hazardous Seas Alert remains at yellow.