🇸🇹 São Tomé and Príncipe
National FlagGeography & Borders
This country has no land borders.
Introduction & Background
São Tomé and Príncipe (/ˌsaʊ təˈmeɪ...ˈprɪnsɪpə, -peɪ/;10 Template:Lang-pt (Template:IPA-pt); English: "Saint Thomas and Prince"), officially the Democratic Republic of São Tomé and Príncipe (Template:Lang-pt), is a Portuguese-speaking island country in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main islands of São Tomé and Príncipe, about 150km (93.21mi) apart and about 250 and 225km (155 and 140mi) off the north-western coast of Gabon. With a population of 201,800 (2018 official estimate),511 São Tomé and Príncipe is the second-smallest and second-least populous African sovereign state after Seychelles.
The islands were uninhabited until their discovery by Portuguese explorers in the 15th century. Gradually colonized and settled throughout the 16th century, they collectively served as a vital commercial and trade centre for the Atlantic slave trade. The rich volcanic soil and proximity to the equator made São Tomé and Príncipe ideal for sugar cultivation, followed later by cash crops such as coffee and cocoa; the lucrative plantation economy was heavily dependent upon African slaves. Cycles of social unrest and economic instability throughout the 19th and 20th centuries culminated in peaceful independence in 1975. São Tomé and Príncipe has since remained one of Africa's most stable and democratic countries.
Geography & Climate
Temperature (2025)
Precipitation & Snow (2025)
Atmospheric Pressure (2025)
Thunderstorm Days (2025)
Wind Speed (2025)
Air Quality — Monthly Averages (2025)
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 μg/m³ | 9.7 | 10 | 7.9 | 6.8 | 8.5 | 14.9 | 15.4 | 13.5 | 10 | 7.8 | 8.4 | 7.7 |
| PM10 μg/m³ | 15.2 | 18.2 | 13.4 | 11.3 | 12.5 | 20.1 | 20.5 | 18.3 | 14.3 | 12.2 | 12.8 | 11.6 |
| O₃ μg/m³ | 66 | 54.6 | 55.3 | 48.4 | 54.2 | 73.3 | 84.3 | 69.2 | 53.6 | 48.1 | 48.4 | 53.9 |
| NO₂ μg/m³ | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0 | 0.1 | 0.1 | 0.1 | 0.1 |
| SO₂ μg/m³ | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| CO μg/m³ | 196 | 193 | 162 | 124 | 126 | 162 | 183 | 159 | 160 | 114 | 127 | 143 |
Pollen Levels — Monthly (2025)
⛰️ Highest Elevation
- Map Locations: Google Maps | OpenStreetMap