Country

Puerto Rico

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 Puerto Rico.

Country Summary

This page presents high-level information for Puerto Rico's climate zones and its seasonal cycle for mean temperature and precipitation for the latest climatology, 1991-2020. Climate zone classifications in the map below use observed, historical data (sourced from the Climate Research Unit [CRU]) and are derived by applying the Köppen-Geiger climate classification methodology. This classification divides climate into five primary climate groups, which are divided based on seasonal precipitation and temperature patterns. The five primary 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). It is important to understand the different climate contexts that exist within a country as well as the surrounding region when analyzing current climates and projected change. Climate classifications are identified by hovering your mouse over the legend. A narrative overview of Puerto Rico'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
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The archipelago of Puerto Rico includes the main island of Puerto Rico (the smallest of the Greater Antilles) and a number of smaller islands, the largest of which are Mona, Vieques, and Culebra. The total area of the main island is 9,105 km2. Puerto Rico has an estimated population of 3.2 million (2020) people. Puerto Rico's economy is driven by the industry, services, and agriculture sectors (2017). Puerto Rico is especially vulnerable to the effects of climate change due to its geographical location. It is especially prone to hurricanes, in which in 2017, Hurricane Maria devastated the territory and caused an extensive loss of infrastructure, electrical power outages to 90% of the territory, and contamination of potable water.