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World Meteorological Organization


WMO global annual to decadal climate update for 2023–2027

The purpose of this report is to present predictions and forecasts of climate indicators and global fields for the period 2023-2027. It provides information on the expected changes in global near-surface temperature, Atlantic Multidecadal Variability (AMV), and El Niño Southern Oscillation. It also includes regional...

State of the global climate 2021

This WMO flagship report reveals that greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification all set new records in 2021. This is yet another clear sign that human activities are causing planetary scale changes on land, in the ocean and in in...

WMO global annual to decadal climate update for 2021–2025

This document presents a summary of annual to decadal predictions of global temperature.

2020 State of climate services

Between 1970 and 2019, 79% of disasters worldwide involved weather, water, and climate-related hazards. This report identifies where and how governments can invest in effective early warning systems (EWS) to strengthen countries’ resilience to multiple weather, water and climate-related hazards. Being prepared and able to...

WMO statement on the state of the global climate in 2018

This publication marks the twenty-fifth anniversary of the WMO Statement on the State of the Global Climate, which was first issued in 1994. The 2019 edition treating data for 2018 marks sustained international efforts dedicated to reporting on, analysing and understanding the year-to-year variations and...