Guatemala’s climate varies according to its diverse topography, ranging from cool highlands, tropical semi-dry savannah, tropical jungle in the northern lowlands, and humid coastal areas. The average annual temperature for the coast ranges from 25°C to 30°C; for the central highlands the average temperature is 20°C, and drops to 15°C for the higher mountains. The rainy season in Guatemala extends from May to October in the inland areas and from May to December along the coast, while the dry season extends from either November or January to April. Rainfall fluctuates between 1000 and 1200 mm annually in most of the country, whereas the Atlantic coastal area receives about 4000 mm annually.
- Maximum temperature extremes increased by 0.2°C and minimum temperatures increased by 0.3°C per decade since 1960.
- The number of cold days has decreased during the period December through February and the number of hot days has increased in March through May.
- The number of hot days and nights has increased by 2.5% and 1.7% per decade, respectively. Conversely, the number of cold days and nights has decreased by 2.2% and 2.4%.
- Precipitation has exhibited a decrease in monthly values, with the greatest reduction seen in June and August.
- The number of consecutive dry days has increased and the dry season is warmer and more prolonged.
- Positive precipitation trends have been noted in some areas; however, the average annual precipitation and the number of consecutive wet days do not show significant changes.
This section provides the options to visualize historical climate data for different timeframes via map and annual cycle chart.