Last updated: January 18, 2025
The climate of Petén, Guatemala is classified under the Köppen-Geiger system as Am, characterized by its tropical monsoon nuances. The region experiences a remarkable temperature range, with a minimum of 10°C (50°F) recorded in February, escalating to an average of 27°C (80°F) throughout the year. The peak temperatures can soar to 44°C (112°F) in May, illustrating the extreme heat that typifies this vibrant ecosystem. Such climatic conditions not only shape the local biodiversity but also influence agricultural practices and human habitation in this unique part of Central America.
In Petén, Guatemala, temperature patterns exhibit a notable seasonal progression throughout the year. The cooler months of January and February feature minimum temperatures that dip to around 10-12°C (50-54°F) and average highs reaching up to 41°C (106°F), establishing a brief respite before the heat intensifies. As spring approaches, the temperature rises steadily, peaking in April and May, where average temperatures hit 29-30°C (85-86°F) and maximums can soar to 44°C (111-112°F). The onset of the rainy season in June marks a slight decrease in maximum temperatures, but the averages remain consistently warm at 28°C (83°F). Throughout the remaining months, temperatures gradually decline, settling into a milder pattern by December, with averages around 24°C (75°F) as the region transitions back to cooler conditions. This cyclical fluctuation highlights Petén's characteristic tropical climate, marked by significant warmth punctuated by a brief cooling phase.
In Flores, temperatures exhibit notable variability throughout the year, with a minimum reaching 13°C (55°F) in February and soaring to a maximum of 44°C (112°F) in May. This range highlights the region's tropical climate, which influences local activities and lifestyle. For more detailed monthly temperature insights, you can refer to monthly temperatures in Flores.
Precipitation patterns in Petén, Guatemala reveal a distinct seasonal cycle, with rainfall generally sparse during the early months of the year. January sees an average of 42 mm (1.7 inches) of rain over 8 days, while February and March follow with even lower totals of 23 mm (0.9 inches) and 31 mm (1.2 inches), respectively. As April approaches, precipitation begins to increase slightly, culminating in May with a substantial spike to 107 mm (4.2 inches), heralding the onset of the rainy season. The rainy months showcase significantly higher rainfall, particularly in June, where 233 mm (9.2 inches) falls over 23 days, setting the stage for the region’s lush growth.
As summer unfolds, precipitation remains abundant through July and August, recording 115 mm (4.5 inches) and 140 mm (5.5 inches) respectively, fostering a vibrant landscape. The peak of the rainy season occurs in September, with 207 mm (8.1 inches) of rainfall, followed closely by October at 204 mm (8.0 inches). November begins to taper off with 113 mm (4.4 inches), and December sees a decrease to 58 mm (2.3 inches), resulting in a dry transition into the new year. This cyclical precipitation pattern plays a crucial role in sustaining the diverse ecosystems and agricultural practices in the Petén region.
In Petén, Guatemala, sunshine duration displays a compelling seasonal trend, characterized by a steady increase from the winter months into summer. January starts the year with approximately 209 hours of sunshine, gradually rising to 258 hours in February and reaching 302 hours in March. By April, the trend continues upward, with sunshine peaking at 310 hours. The month of May marks the apex of sunlight, boasting an impressive 320 hours, which is critical for the region's agriculture and vibrant ecosystem. This build-up of sunshine creates ideal conditions for plant growth and contributes to the intensity of the rainy season that follows.
As the year progresses into the summer, sunshine hours remain robust, with July and August averaging 311 and 312 hours, respectively. While June experiences a slight dip to 277 hours due to early rain, the overall trend remains positive. The fall months exhibit a gradual decrease in sunlight, with September at 288 hours and October reducing to 270 hours. By November and December, sunshine levels settle at 258 and 263 hours, respectively, indicating the onset of cooler conditions. This seasonal fluctuation not only influences the daily life of residents but also highlights the importance of solar energy potential in this tropical region.
In Petén, Guatemala, the UV Index presents significant variations throughout the year, indicating the strength of sun exposure and its implications for skin safety. Beginning in January, the UV Index registers at 10, which falls into the very high exposure category with a burn time of approximately 15 minutes. As the months progress, there is a marked increase, peaking in March and April, with levels reaching 13 and 14, both classified under the extreme category. This level of UV radiation necessitates heightened caution, as individuals are advised to limit sun exposure to just 10 minutes during these months to avoid potential skin damage.
The trend of extremely high UV levels continues into May, where the index remains steady at 14, followed by a slight drop to 13 in June, July, August, and September. The UV Index decreases gradually again in October to 12, signaling a continued risk. By November, it returns to 10—still very high—before dropping to 9 in December, marking the end of the year. These elevated UV levels throughout much of the year underscore the necessity for effective sun protection measures, as prolonged exposure could lead to serious health risks in this tropical region.
UV Risk Categories
Daylight duration in Petén, Guatemala, showcases a fairly consistent pattern throughout the year, with variations that reflect the region's tropical climate. In the first two months of the year, January and February, daylight spans approximately 11 hours, providing a stable yet brief light period. As March arrives, the daylight increases slightly to 12 hours, and this duration sustains through April and May, allowing for ample sunlit hours suited for outdoor activities and agricultural practices.
The longest daylight period occurs in June, extending to 13 hours, coinciding with the summer season, which is crucial for plant growth. Following this peak, daylight returns to 12 hours from July through September, maintaining a balance that supports both ecology and daily life. As October approaches, daylight begins to decrease again to 11 hours, continuing through November and December. This rhythmic fluctuation in daylight hours emphasizes Petén’s characteristic tropical conditions, ensuring a cycle that influences both the environment and the lifestyle of its inhabitants.
The climate in Flores, Guatemala, is characterized by warm temperatures and distinct wet and dry seasons. Average temperatures range from a mild 24°C (75°F) in January to a peak of 30°C (87°F) from April to May, with maximums occasionally reaching 44°C (111°F). Rainfall is prevalent mainly from May to October, with June witnessing the highest precipitation at 254 mm (10.0 in). The region enjoys ample sunshine, particularly in March and April, with over 300 hours of sunshine in these months. For more information, visit Flores climate.
In conclusion, Petén, Guatemala, presents a fascinating interplay of climatic factors that shape its environment and the lifestyle of its residents. From the temperature patterns that illustrate a warm tropical climate to the substantial rainfall that nurtures its rich biodiversity, every element is interconnected. The significant UV Index highlights the need for sun protection during the region's sun-drenched months, while the consistent daylight duration facilitates agricultural productivity and supports daily activities. Together, these climatic characteristics underscore the uniqueness of Petén as a vibrant ecological zone, providing both challenges and opportunities for sustainable living in this beautiful part of Central America.