Last updated: January 18, 2025
Mato Grosso, Brazil, is characterized by its tropical savanna climate, classified under the Köppen-Geiger system as Aw (tropical savanna) and Am (tropical monsoon). The region experiences a remarkable temperature range, with minimums dipping to 4°C (40°F) in May, and soaring to maximums of 42°C (109°F) in October. The average annual temperature hovers around 26°C (79°F), creating a dynamic climate that influences both the local ecosystem and human activities. The interplay between seasonal variations and temperature extremes underscores the unique climatic conditions that define this vibrant region of Brazil.
The temperature patterns in Mato Grosso, Brazil, reveal a pronounced seasonal rhythm marked by distinct variations throughout the year. January through March sees relatively stable temperatures, with minimums around 17-18°C (63-65°F) and maximums reaching 37-38°C (99-101°F), suggesting a warm, tropical setting. As the wet season transitions into April, minimum temperatures drop to 14°C (57°F) while maintaining an average of 26°C (79°F). This cooling trend peaks in May and July, with striking minimums of 4°C (40°F), introducing a brief respite from the heat before rising again in August. Late winter leads into spring with temperatures climbing sharply, especially in September and October, where maximums hit extremes of 42°C (108°F) and 42°C (109°F), significantly impacting the climate dynamics of the region. The year concludes with mild temperatures in November and December, reflecting a return to the warmer patterns typical of Mato Grosso's tropical climate.
Cuiaba experiences a temperature range from a minimum of 7°C (45°F) in May to a maximum of 41°C (107°F) in October, as detailed in the monthly temperatures in Cuiaba. In contrast, Chapada dos Guimaraes has a similar minimum temperature of 7°C (44°F) in July but reaches a maximum of 40°C (105°F) in October, according to the monthly temperatures in Chapada dos Guimaraes.
Precipitation in Mato Grosso, Brazil, follows a clear seasonal pattern, predominantly influenced by its tropical climate. The rainy season is marked by significant rainfall from January to March, peaking in February with a notable 248 mm (9.8 in), and an average of 19 to 24 days of rain each month. This consistent rainfall contributes to lush vegetation and hydrated ecosystems, essential for the region's biodiversity. As the season transitions to the drier months of April to July, precipitation drops sharply, with April receiving 109 mm (4.3 in) and May further reducing to only 32 mm (1.3 in). Notably, July experiences negligible rainfall, at just 0 mm (0.0 in), highlighting a pronounced dry spell.
As the dry season begins to wane in August and September, light showers return, but total averages remain low, measuring just 7 mm (0.3 in) and 24 mm (0.9 in), respectively. The climate shifts again in October and November, when precipitation begins to escalate, culminating in 202 mm (8.0 in) in November and 231 mm (9.1 in) in December. This resurgence in rainfall, characterized by 14 to 23 days of precipitation across these months, sets the stage for the renewal of local ecosystems, preparing the region for the next cycle of its tropical climate.
In Mato Grosso, Brazil, sunshine duration exhibits a compelling seasonal trend, with hours of sunlight consistently increasing from winter into the summer months. Starting from January with 241 hours, the region experiences a gradual ascent in sunshine, reaching its peak in the mid-year. March and April stand out with 292 and 294 hours respectively, indicating a vibrant transition towards the sun-soaked months ahead. The trend culminates in July, when the sunshine reaches its zenith at 332 hours, showcasing the region’s capacity for abundant solar energy during its warmest season.
As the year progresses, a slight decline in sunlight occurs towards the end of the year. Despite this reduction, October and September still boast impressive durations with 317 and 315 hours respectively, before a notable dip emerges in November with 278 hours and a slight rebound in December to 285 hours. Overall, the consistency of over 300 hours of sunshine from May through October solidifies Mato Grosso’s reputation as a sun-rich climate, making it an attractive region for agriculture and tourism alike. The dynamic interplay of varying light hours not only fuels the local ecosystem but also dramatically shapes the lifestyle and activities of its inhabitants.
In Mato Grosso, Brazil, the UV Index presents a strikingly consistent pattern, indicating a high level of solar intensity throughout the year. From January to April, the UV Index remains firmly within the extreme exposure category, peaking at 17 in February and sustaining a 16 in both March and November. This extreme ultraviolet radiation necessitates careful sun safety measures; for most months, the recommended burn time is a mere 10 minutes for unprotected skin. The enduring high UV Index underscores the importance of sun protection, especially for outdoor activities during these months, as the risk of skin damage significantly increases.
As the year progresses into the latter half, a slight moderation in UV levels is observed. From July onward, the index registers somewhat lower values, transitioning to a very high category of 10 in July, with burn times extending to 15 minutes. However, it climbs again in August to 12, remaining in the extreme category until the year's end. Notably, October also returns to a 15 UV Index. Despite these fluctuations, the year-round presence of high UV levels highlights the critical need for public awareness regarding sun safety practices, particularly for vulnerable populations and those engaged in outdoor activities in this sun-drenched region.
UV Risk Categories
In Mato Grosso, Brazil, daylight duration displays a remarkable consistency across the calendar year, typically ranging between 11 to 12 hours. The first half of the year, spanning from January to March, offers a steady 12 hours of daylight, providing ample time for outdoor activities and agricultural pursuits. This equilibrium continues into September, October, and November, reinforcing the perception of a reliably sunlit landscape, which is particularly important for the region’s biodiversity and cultivation cycles.
As the seasons transition, daylight duration slightly dips to 11 hours from April through August, marking the cooler months of the year. This subtle reduction still offers sufficient light for daily activities, while the predictable pattern allows residents and visitors to plan with confidence. The recurrence of 12-hour days in late spring and early autumn ensures that Mato Grosso’s growing season thrives, highlighting the crucial role daylight plays in maintaining the delicate balance of its tropical ecosystem.
Chapada dos Guimarães, Brazil, experiences a tropical climate characterized by warm temperatures and a distinct wet season. January to March sees high temperatures averaging around 26-28°C (79-82°F) with significant rainfall, peaking in February at 242 mm (9.5 in). The dry season occurs from June to August, with July recording minimal precipitation. Despite the lower rainfall, these months maintain warm temperatures, averaging 23-25°C (74-78°F). For more detailed information, visit Chapada dos Guimaraes climate.
Cuiabá, Brazil, experiences a tropical savanna climate with high temperatures and distinct wet and dry seasons. January to March sees temperatures averaging around 27°C (81°F) with significant rainfall peaking in February at 224 mm (8.8 in). The dry season occurs from May to August, where temperatures remain warm but rainfall drops dramatically, especially in July with nearly no precipitation. Despite the heat, sunshine is abundant year-round, with the highest hours recorded in July, at 330 hours. For more details, visit Cuiaba climate.
In conclusion, Mato Grosso, Brazil, presents a unique climatic tapestry characterized by its tropical savanna and monsoon influences, alongside a well-defined seasonal rhythm in temperature, precipitation, sunshine duration, UV index, and daylight hours. The area’s high temperatures and significant rainfall drive dynamic ecological systems and agricultural productivity. Concurrently, the consistent daylight duration ensures ample time for growth and outdoor activities, while the extreme UV index highlights the need for protective measures against sun exposure. Collectively, these climatic factors not only shape the environment and biodiversity of Mato Grosso but also inform the lifestyle and agricultural practices of its inhabitants, making it a region of great ecological and cultural significance.