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Recent Trends
Mean annual temperature 1 °C
since 1970
Sea level rise
7.6 mm/year  
Mean annual rainfall    
'hot' days and nights    
Key Trends
  • Observed rainfall from seven meteorological stations across the Solomon Islands show a decreasing trend , but a longer time period of observations is required in order to derive statistical significance from these
  • The numbers of category 4 and 5 storms in the Pacific region have more than doubled when comparing their frequency and occurrence between 1975-1989 and 1990-2004.
  • From 1994 to 2008, sea levels rose by 7.6 mm/year in the Solomon Islands. Satellite measurements in this area of the Pacific estimate sea-level increases of 8-10 mm/year, approximately three times the global average rate of increase
  • Mean temperatures across the South Pacific have increased by approximately 1°C since 1970, at an average rate of 0.3°C per decade.
  • Sea surface temperatures in the Pacific have increased between 0.6 to 1.0°C since 1910, with the most significant warming occurring after the 1970s.
Annual Climate Characteristics
Click on the map to view the historical climate chart for that province.
To learn more about the data click here.
Key Climate Periods
  • The precipitation ranges between 3000-5000 mm annually with a rainy season between December-March.
  • With a warm tropical climate year round, temperatures across the country range between 23-31°C
Historical Climate Maps
Annual Rainfall
Major Climate Processes
  • Trade winds
  • Monsoon winds
  • South Pacific Convergence Zone (SPCZ)
  • El Niño
Impacts on Climate
  • El Niño conditions in the southeast Pacific can bring drought conditions
  • The rainy season occurs when the north-westerly monsoonal winds bring tropical cyclones across the archipelago
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