Last updated: January 18, 2025
Annobon, situated in Equatorial Guinea, experiences a tropical rainforest climate characterized by its warm temperatures throughout the year. According to the Köppen-Geiger climate classification, the island maintains a minimum temperature of 22°C (71°F) in July, with an average of 26°C (79°F) and a maximum of 29°C (85°F) observed in the month of April. This consistent warmth, coupled with high humidity, contributes to the region's lush biodiversity and vibrant ecosystems, making Annobon a unique focus for climate studies in the humid tropics.
The temperature patterns in Annobon, Equatorial Guinea, reveal distinct seasonal variations, influenced by its tropical rainforest climate. From January to April, temperatures remain relatively consistent, with minimums around 24°C (76°F) to 25°C (78°F), and averages peaking at 28°C (82°F), while maximums hover close to 29°C (84°F) to 29°C (85°F). A notable decline occurs in the following months, especially from June to July, where temperatures dip to their lowest, with minimums falling to 22°C (71°F) and average temperatures dropping to 23°C (75°F). Early autumn sees a gradual increase, as temperatures begin to rise again in September and October, stabilizing around 24°C (76°F), while the end of the year showcases a slight resurgence in warmth, ultimately returning to average temperatures of 26°C (80°F) by December. This cyclical pattern highlights the mild, yet distinct seasonal changes typical of Annobon's equatorial climate.
San Antonio de Pale experiences a minimum temperature of 22°C (71°F) in July and reaches a maximum of 29°C (85°F) in April, reflecting a relatively warm climate throughout the year. For more detailed information on the monthly temperatures, visit monthly temperatures in San Antonio de Pale.
Precipitation in Annobon, Equatorial Guinea, showcases pronounced seasonal patterns that reflect its tropical rainforest climate. The year begins with significant rainfall, peaking in January at 164 mm (6.4 in) over approximately 21 days, followed by a gradual decrease in precipitation through February (118 mm) and March (139 mm). April sees 121 mm of rainfall, but by May, the total drops considerably to 88 mm. This dry trend continues into June and July, where rainfall plummets to a mere 8 mm (0.3 in) and 7 mm (0.3 in), resulting in very few rain days, particularly in July, which records no precipitation.
As the season transitions into the latter half of the year, precipitation levels rebound dramatically. October receives a moderate 32 mm (1.2 in), while November experiences a surge, with rainfall totaling 110 mm (4.3 in) over 19 days. December stands out with the highest monthly total of 201 mm (7.9 in), occurring across 28 days, marking a return to the heavy rains typical of the region. This cyclical pattern demonstrates how Annobon experiences both wet and dry periods, shaping its lush ecosystems and agricultural cycles throughout the year.
In Annobon, Equatorial Guinea, sunshine duration reflects a distinctive seasonal trend characterized by a steady increase from January through the summer months. Starting the year with 261 hours of sunshine in January, there is a noticeable uptick as the months progress, culminating in a peak in May with an impressive 326 hours. March marks a significant turning point, where the island experiences 321 hours of sunlight, setting the stage for the sunny conditions that follow. By September, sunshine levels remain robust, with 319 hours, indicating a continuation of relatively bright conditions even as the year approaches its end.
The latter part of the year, particularly from October to December, showcases high sunshine duration as well, with October recording the highest monthly total at 332 hours. This trend illustrates a slight decline in hours during the transition into the late rainy season, yet remains consistently above 300 hours each month through to year-end. Notably, the consistent sunshine hours throughout late spring and early autumn not only enhance the island's lush flora but also create favorable conditions for agricultural activities, making Annobon a vibrant locale for both natural beauty and farming endeavors.
The UV Index in Annobon, Equatorial Guinea, demonstrates a pattern of extreme exposure levels for much of the year, particularly in the first half. Starting at 12 in January and reaching a peak of 14 in March, the extreme classification indicates a high risk of harm from unprotected sun exposure, with a burn time of just 10 minutes being sufficient to cause skin damage. The UV Index remains firmly in this extreme zone through April and May, maintaining values of 13, signifying a consistent need for protective measures against harmful ultraviolet radiation during these months.
As the year progresses, a slight decrease in the UV Index occurs from June onwards, transitioning to a very high exposure category in June (9) and July (10). Despite this reduction, the UV Index fluctuates between 10 and 11 for the rest of the year, returning to extreme levels in August and maintaining similar values through the fall months. This data illustrates the importance of sun safety awareness year-round in Annobon, as periods of extreme UV exposure are frequent and prolonged, necessitating protective strategies such as sunscreen and appropriate clothing to mitigate health risks.
UV Risk Categories
In Annobon, Equatorial Guinea, daylight duration remains remarkably consistent throughout the year, averaging 12 hours each day. This uniformity reflects the island's equatorial position, where the length of day and night does not fluctuate significantly across the seasons. Residents and visitors alike can expect a balanced distribution of daylight and darkness, which contributes to the region’s stable climate and natural rhythms.
This consistent daylight offers several advantages, particularly for agricultural practices and outdoor activities, as it allows for regular scheduling regardless of the time of year. Whether in the peak of rainy season or during drier months, the 12-hour daylight span supports a reliable growing environment for local crops and encourages a lifestyle closely aligned with the natural light available. The predictability of daylight duration in Annobon enhances the idyllic qualities of island life, making it an attractive destination for those seeking both relaxation and adventure in a sunlit paradise.
The climate in San Antonio de Pale, Equatorial Guinea, is characterized by warm temperatures throughout the year, with average highs consistently around 27°C (81°F) to 29°C (84°F). The wettest months are January and December, with precipitation reaching up to 201 mm (7.9 in) and 164 mm (6.4 in), respectively. Dry conditions prevail from June to August, where rainfall drops significantly to about 7 mm (0.3 in). Sunshine is abundant, particularly in the middle of the year, with July seeing up to 328 hours of sunshine, making it an ideal time for outdoor activities. For more detailed information, visit San Antonio de Pale climate.
In conclusion, Annobon, Equatorial Guinea, presents a unique climate characterized by its warm temperatures, consistent precipitation patterns, and stable daylight duration throughout the year. The island experiences extreme UV Index levels for much of the year, emphasizing the need for sun protection among residents and visitors. Moreover, the 12-hour daylight duration provides an ideal backdrop for agricultural activities and outdoor pursuits, fostering a rich environment for both flora and fauna. Overall, understanding these climatic factors not only highlights the ecological richness of Annobon but also underscores its appeal as a vibrant destination for those looking to engage with the beauty of nature in an equatorial setting.