Country

Tonga

Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Explore the overview for a general context of how climate change is affecting Tonga.

Country Context

The Kingdom of Tonga is an archipelago consisting of four clusters of 172 islands located in the Central South Pacific Ocean. Tonga is situated at the subduction zone of the Indian-Australian and the Pacific tectonic plates and lies within the Ring of Fire where intense seismic activities occur. Most of the islands in Tonga originate from coral line, and some islands are of volcanic origin. The majority of these islands are comparatively flat except for those raised by tectonic action. 71 per cent of the population resides on the largest island of Tongatapu. Tonga enjoys a relatively strong position as a lower middle income country, in part due to its high migration and remittance culture; about 50% of all Tongans live overseas and their remittances represent approximately 45% of gross domestic product. Its economy is highly dependent on climate sensitive sectors such agriculture, fisheries and tourism and a limited resource base that is sensitive to external shocks.

Tonga's Ministry of Environment and Climate Change (MECC) is the focal point for the country's environmental governance and all mitigation and adaptation activities. The Tonga Climate Change Policy, published in 2016, envisions “A Resilient Tonga by 2035” by strengthening risk management, increasing low-carbon development, and strengthening disaster preparedness, response and recovery. Tonga ratified the Paris Agreement on September 21, 2016 and its Nationally Determined Contribution can be found here.

Country level data at a glance

Climate Data

Historical Trends

The section provides access to historical climate datasets for both temperature and precipitation from 1900 to 2016.

Projected Trends

The section provides access to future climate datasets for both temperature and precipitation and their statistical derivatives for various timeframes and emission scenarios from 2020 to 2099.

The section provides access to future climate datasets for both temperature and precipitation and their statistical derivatives for various timeframes and emission scenarios from 2020 to 2099.

Climate by Sector

This section contains information from multiple climate indicators and indices relevant for key economic sectors. Simple narratives can help you interpret and extract summaries of potential climate change impacts at the sector level.

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Vulnerability

This section allows you to explore the susceptibility of livelihoods and natural systems to impacts from climate variability and change and facilitate the exploration of socioeconomic and development data and its relationships with natural hazards vulnerable areas.

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Impacts

This section allows you to explore the climate information from multiple climate indicators and present them with simple, embedded interpretation for an informative, high-level summary of the potential for future climate change impacts on key socioeconomic sectors.

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Adaptation

This section helps you grasp key national adaptation policies and reports, explore options for key sectors, and understand current adaptation gaps and needs for enhanced climate smart planning.

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