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 Samoa.

Country Summary

This page presents high-level information for Samoa's climate zones and its seasonal cycle for mean temperature and precipitation for the latest climatology, 1991-2020. Climate zone classifications are derived from the Köppen-Geiger climate classification system, which divides climates into five main climate groups divided based on seasonal precipitation and temperature patterns. The five main groups are A (tropical), B (dry), C (temperate), D (continental), and E (polar). All climates except for those in the E group are assigned a seasonal precipitation sub-group (second letter).  Climate classifications are identified by hovering your mouse over the legend. A narrative overview of Samoa's country context and climate is provided following the visualizations.

Köppen-Geiger Climate Classification, 1991-2020
  • Af
  • Am
  • As/Aw
  • BWh
  • BWk
  • BSh
  • BSk
  • Csa
  • Csb
  • Csc
  • Cwa
  • Cwb
  • Cwc
  • Cfa
  • Cfb
  • Cfc
  • Dsa
  • Dsb
  • Dsc
  • Dsd
  • Dwa
  • Dwb
  • Dwc
  • Dwd
  • Dfa
  • Dfb
  • Dfc
  • Dfd
  • ET
  • EF

Samoa is a small island country in the southwest Pacific, and comprises four main inhabited islands and six smaller, uninhabited islands of volcanic origin. The inhabited islands are Savai’i, Upolu, Manono and Apolima. Samos has a lower middle-income status, and its economy is natural resource dependent with tourism and exports from agriculture, fisheries and forestry products as major contributors. Climate change is expected to increasingly exert considerable stress on the country’s vulnerable sectors, especially agriculture and tourism. With approximately 70% of Samoa’s population and infrastructure located in low-lying coastal areas, projected sea level rise could exacerbate coastal erosion, loss of land and property and dislocation.

The Ministry of Natural Resources and Environment, Samoa (MNRE) is the central point for climate action in Samoa. Samoa has enacted a variety of diverse climate change policies, related to coral reefs, biodiversity, coastal ecosystems and community livelihoods. Samoa ratified the Paris Agreement on April 22, 2016 and its Nationally Determined Contribution can be found here.