Last updated: April 14, 2025
Guyana's climate is characterized by a striking range of temperatures and precipitation patterns throughout the year. January sees a minimum temperature of 17°C (64°F) in Potaro-Siparuni, while October can soar to a sweltering 38°C (101°F) in Upper Takutu-Upper Essequibo. Precipitation varies significantly, with January averaging a low of 25 mm (1.0 in) in Upper Takutu-Upper Essequibo and peaking at an impressive 460 mm (18.1 in) in May in East Berbice-Corentyne. Additionally, humidity levels fluctuate, averaging a low of 41% in October and climbing to 89% in June, both observed in Upper Takutu-Upper Essequibo. This intricate interplay of temperature and moisture creates a diverse tropical environment that shapes the unique ecosystems and lifestyle in the region.
Guyana boasts a predominantly tropical climate, classified mainly under the Köppen-Geiger Af category, characterized by high humidity and ample rainfall throughout the year. Regions such as Barima-Waini, Cuyuni-Mazaruni, and Demerara-Mahaica experience this lush, tropical ambiance, fostering diverse ecosystems and rich wildlife. Notably, the Upper Takutu-Upper Essequibo region presents a slight variation, with an Am classification hinting at a more mesic climate influenced by altitude. From the coastal belt to the interior, Guyana's climate zones provide a vibrant backdrop to its stunning landscapes and varying biodiversity.
| Climate Zone | Description |
|---|---|
| Af | Tropical rainforest climate with no dry season and high temperatures year-round. |
| Am | Tropical monsoon climate with heavy rainfall and high temperatures. |
Guyana experiences a dynamic temperature range throughout the year, showcasing its diverse climate. In January, temperatures swing from a cool 17°C (64°F) in Potaro-Siparuni to a scorching 37°C (98°F) in Upper Takutu-Upper Essequibo. As February and March roll in, the mercury holds steady, revealing minimums of 18°C (65°F) and maximums peaking again at 37°C (98°F). April brings a slight change, with daily highs hitting 100°F, while May introduces warmer nights at 21°C (70°F) but keeps daytime temperatures high, reaching 37°C (99°F). The months of June and July see a dip in maximum temperatures, as the heat settles around 34°C (94°F), accompanied by mild lows of 19°C (67°F). Transitioning into August and September, conditions remain warm and comfortable, with lows at 20°C (67°F) and highs returning to 37°C (100°F). The year closes with October and November sharing maximums of 38°C (101°F) and maintaining lows in the 20s (°C). Finally, December brings back a hint of coolness with minimums at 19°C (67°F) but still experiences daytime highs around 37°C (98°F). Overall, Guyana's climate features a tropical warmth punctuated by minor fluctuations, creating a unique environment year-round.
Guyana exhibits a diverse range of precipitation patterns throughout the year, with significant variations across its regions. In Upper Takutu-Upper Essequibo, January stands out with a relatively low precipitation of only 25 mm (1.0 in) and just 4 days of rain, marking it as one of the driest periods. In stark contrast, East Berbice-Corentyne experiences a dramatic spike in May, receiving a substantial 460 mm (18.1 in) during typically rainy conditions. Moreover, July in Barima-Waini can see rain for a full 31 days, showcasing the area's extended wet season. These trends illustrate how Guyana's climate varies not only in intensity but also in duration, influencing the country’s rich biodiversity and agricultural practices.
Guyana experiences significant fluctuations in humidity throughout the year, particularly in the region of Upper Takutu-Upper Essequibo. The humidity levels can dip as low as 41% in October, creating a brief respite from the tropical climate. However, this relief is short-lived, as June sees the humidity peak at a sticky 89%, highlighting the region's characteristic wet season and creating a lush, vibrant environment. This stark contrast illustrates the dynamic weather patterns that define Guyana’s climate, making it essential for residents and visitors alike to prepare for varying levels of moisture in the air.
Guyana's UV Index trends reveal a notable increase in intensity as the year progresses, particularly in the months of March and April. In March, the average daily maximum UV Index reaches 15 in the Barima-Waini region, indicating a significant level of UV radiation. This intensity escalates further in April, where the Upper Takutu-Upper Essequibo region records an average daily max UVI of 17. This upward trend underscores the importance of sun safety measures, as the risk of UV exposure escalates during these months, making awareness and protection critical for residents and visitors alike.
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Guyana experiences notable variations in sunshine duration throughout the year, reflecting the unique climatic characteristics of its regions. For instance, Upper Demerara-Berbice basks in 307 hours of sunlight in October, making it a prime month for sun-seekers, while June sees a dip to 205 hours, indicating a shift toward the wetter season. In contrast, Upper Takutu-Upper Essequibo enjoys its sunniest month in January with a remarkable 266 hours, showcasing a different seasonal pattern. Highlighting extremes, Barima-Waini shines with an impressive 338 hours of sunshine in March, underlining its position as one of the sunniest periods in the country. These patterns not only enhance the region's agricultural potential but also attract visitors eager to soak up the tropical sun.
When exploring the likelihood of sunny weather in Guyana, a clear trend emerges across its regions. In Potaro-Siparuni, the chances of sunshine are relatively low, peaking at just 8% in May, highlighting a more overcast climate during this time. In contrast, the coastal region of Pomeroon-Supenaam experiences significantly sunnier prospects, boasting a 56% likelihood of sunny weather in September. This stark difference illustrates how geographical variations within Guyana can dramatically influence weather patterns, suggesting that those seeking sun should plan their visits accordingly.
In Guyana's Barima-Waini region, daylight hours exhibit a noticeable shift throughout the year, with December offering about 11 hours of sunlight as the year winds down. In contrast, June enjoys significantly more daylight, averaging around 12 hours. This trend showcases the region's subtle but distinct variations in daylight, which can influence both the landscape and the lifestyle of its inhabitants, fostering a deep connection to the rhythms of nature. As daylight wanes in December, residents may find themselves embracing evening activities, while the extended June daylight invites exploration and celebration of the lush surroundings.
In Barima-Waini, Guyana, the climate is characterized by warm temperatures and substantial rainfall, creating a lush, vibrant environment. Throughout the year, temperatures comfortably range from a minimum of 22°C (71°F) to a peak of 33°C (91°F), particularly in August and September. However, the wettest months, June and July, see significant precipitation, with over 300 mm (12.2 in) of rain, contributing to the area's high humidity levels, which average around 84% by mid-year. As the seasons transition, visitors can enjoy the rich biodiversity that thrives in this tropical climate. To learn more about Barima-Waini's climate specifics, visit Barima-Waini climate.
Nestled in the heart of Guyana, Cuyuni-Mazaruni boasts a tropical climate characterized by warm temperatures and substantial rainfall throughout the year. January and February see delightful averages around 25°C (78°F), with highs climbing to 31°C (88°F), but as the months progress into May and June, the area experiences heavier downpours, peaking at 404 mm (15.9 in) of rain in June. Humidity levels fluctuate, reaching a peak of 85% during the rainy season, creating a lush environment that's perfect for biodiversity. Visitors can expect to enjoy warm weather year-round, but be prepared for bursts of rain and high humidity. For a comprehensive overview, explore the detailed Cuyuni-Mazaruni climate.
The climate in Demerara-Mahaica, Guyana is characterized by warm temperatures and distinct wet and dry seasons. With average highs ranging from 29°C (85°F) in January through to 32°C (90°F) in September, this region offers balmy weather year-round. However, the wet season peaking between May and July brings heavy rainfall, reaching up to 415 mm (16.3 in) in June and corresponding humidity levels soaring to around 85%. This tropical climate is ideal for lush vegetation, contributing to the area's rich biodiversity. For more detailed insights, visit the Demerara-Mahaica climate.
Nestled along the coast of Guyana, East Berbice-Corentyne boasts a tropical climate characterized by warm temperatures and seasonal rainfall. With average temperatures lingering around 26°C (79°F) and highs peaking at 32°C (90°F) in the heart of September, the region feels the embrace of warmth year-round. However, the months of May and June bring significant precipitation, with rainfall often exceeding 450 mm (17.5 in), and humidity climbs to 85%, making the air feel lush and vibrant. As the year progresses into drier periods, you can experience pleasant temperatures with a drop in humidity, perfect for outdoor exploration. For a detailed look at the weather patterns throughout the year, visit the East Berbice-Corentyne climate page.
The climate in Essequibo Islands-West Demerara, Guyana is characterized by warm temperatures and significant humidity throughout the year. With average temperatures hovering around 26°C (78°F), the region experiences highs reaching 33°C (92°F) during the hottest months of August and September. Rainfall is abundant, especially from May to July, when precipitation can exceed 300 mm (12 in), leading to lush greenery and vibrant ecosystems. Despite the humidity peaking at 85% during the wet season, the region's tropical charm makes it an alluring destination for nature lovers. For more details, explore the Essequibo Islands-West Demerara climate.
Mahaica-Berbice, Guyana, boasts a tropical climate characterized by warm temperatures year-round. From January to December, daily highs typically reach between 29°C (84°F) and 32°C (89°F), while nights remain comfortably mild at around 23°C (74°F). However, this sun-soaked paradise experiences significant rainfall, especially from May to July, when monthly totals can soar to 451 mm (17.7 in), contributing to a high humidity level that often hovers around 85%. Whether you're enjoying the dry spells or bracing for the downpours, the vibrant atmosphere of Mahaica-Berbice offers a unique experience throughout the seasons. For more details on the region's weather patterns, visit Mahaica-Berbice climate.
Nestled in the lush landscape of Guyana, Pomeroon-Supenaam boasts a tropical climate characterized by warm temperatures and considerable humidity throughout the year. Average temperatures hover comfortably between 26°C and 28°C (79°F to 83°F), with peaks reaching up to 33°C (92°F) during the hotter months of September and October. However, the region experiences a notable increase in precipitation between May and July, where rainfall can exceed 375 mm (14.8 in), creating a vibrant, green environment. Humidity levels climb during the rainy season, often hitting around 85% in June and July, adding to the tropical feel. Embrace the warm and wet dance of the seasons while exploring the natural beauty of this captivating region by checking the Pomeroon-Supenaam climate.
Nestled in the heart of Guyana, Potaro-Siparuni boasts a tropical climate characterized by warm temperatures and significant rainfall throughout the year. With average temperatures ranging from a mild 23°C (74°F) in cooler months to a blistering 34°C (93°F) during the height of summer, this region experiences pleasant warmth tempered by high humidity, especially from June through August. The wettest months, notably May and June, bring substantial precipitation, peaking at 381 mm (15.0 in) in May, making it essential to be prepared for tropical downpours. Despite its rainfall, the area's lush landscapes and vibrant ecosystems thrive, showcasing nature's resilience in a humid environment. For a more detailed look at what to expect, visit the Potaro-Siparuni climate.
The climate in Upper Demerara-Berbice, Guyana, is characterized by a warm, tropical atmosphere where temperatures hover between a pleasant 19°C (66°F) and a sizzling 36°C (96°F) throughout the year. The region experiences significant rainfall, particularly during the heavy wet months of May and June, accumulating over 385 mm (15.1 in), which contributes to the lush greenery. Humidity levels can soar, especially from June to August, often reaching a steamy 87%, creating a vibrant yet challenging environment. Visitors can enjoy the diverse climate by exploring the region's stunning landscapes, year-round. For more details about the weather patterns, visit Upper Demerara-Berbice climate.
In the lush region of Upper Takutu-Upper Essequibo, Guyana, the climate is characterized by consistently warm temperatures, averaging around 28°C (82°F) throughout the year, with maximums peaking at 38°C (101°F) in October and November. The rainy season swells from May to July, delivering significant downpours—up to 353 mm (13.9 inches) in June—while humidity levels rise to a steamy 89% during this peak. The drier months, particularly from October to February, offer respite with lower precipitation and more moderate humidity, making for a more comfortable atmosphere. Discover more about this vibrant climate and plan your visit to experience the diverse flora and fauna firsthand by checking the detailed information on the Upper Takutu-Upper Essequibo climate.
The climate of Guyana showcases a striking contrast between its temperature extremes and moisture levels, creating a unique environment throughout the year. January reveals a mild minimum temperature of 17°C (64°F) in the Potaro-Siparuni, while the mercury can soar to a sizzling 38°C (101°F) in October in Upper Takutu-Upper Essequibo. Precipitation varies dramatically as well, with a scant 25 mm (1.0 in) in January in Upper Takutu-Upper Essequibo, escalating to a remarkable 460 mm (18.1 in) in May in East Berbice-Corentyne. Humidity levels further accentuate the climate's variability, dipping to 41% in October and peaking at a steamy 89% in June, particularly in Upper Takutu-Upper Essequibo. This dynamic interplay of temperature, rainfall, and humidity not only shapes the rich biodiversity of the region but also influences the daily lives of its inhabitants, underscoring the multifaceted climatic identity of Guyana.