Last updated: August 21, 2025
In Freetown, Antigua and Barbuda, September is characterized by a warm tropical climate, with maximum temperatures reaching 29°C (85°F) and an average of 28°C (82°F). The evenings cool down to a pleasant minimum of 25°C (77°F), providing a comfortable ambiance. However, this month also sees significant precipitation, totaling 144 mm (5.7 in) over 21 rainy days, contributing to an average humidity of 80%. Visitors can expect a mix of sun and rain, making it a lush and vibrant time to experience the island's natural beauty.
As September rolls into Freetown, Antigua and Barbuda, temperatures begin to reach their peak for the season. With minimums hovering around 25°C (77°F) and averages climbing to 28°C (82°F), the warmth is undeniable. The maximum temperature often touches 29°C (85°F), offering a balmy embrace to those seeking sun-drenched days. This month marks a gentle transition as summer gradually makes way for autumn, but temperatures remain consistently pleasant. Those looking to enjoy the tropical climate will find September's weather ideal—perfect for beach outings and outdoor adventures.
In September, Freetown, Antigua and Barbuda, experiences a significant increase in precipitation, with an impressive 144 mm (5.7 in) of rainfall spread over 21 days. This marks a notable peak in the annual rainfall pattern, as September typically sees more rain than any other month, following the rising trend of previous months. The transition from the comparatively drier April to the lushness of September emphasizes the Caribbean's wet season, where the weather becomes more dynamic and nourishing. This surge in precipitation not only underscores the region's vital ecosystems but also hints at the vibrant renewal that the landscape undergoes during this time of year.
September marks a notable transition in humidity levels in Freetown, Antigua and Barbuda, with an average of 80%. This figure reflects a slight decrease from the peak of 84% reached in July, while still remaining higher than the beginning of the year. As the summer months progress, the humidity tends to rise steadily, peaking during the mid-year before gently tapering off in the fall. Following September, humidity levels maintain a similar trend, stabilizing at 79% in October, before creeping back up to 80% in November. Overall, this pattern illustrates how Freetown experiences a warm, humid climate, indicative of its tropical environment, with September serving as a pivotal point of equilibrium before transitioning further into the drier months.
The UV Index in Freetown, Antigua and Barbuda, remains consistently high throughout September, clocking in at 13. This places the exposure category in the extreme range, meaning that just 10 minutes of unprotected sun exposure can lead to skin damage. Notably, the UV Index has shown resilience in this extreme category since July, demonstrating a trend of heightened sun intensity that persists into the fall. As the region transitions to October, the UV Index experiences a slight dip to 12, yet it remains decidedly hazardous. To stay safe under the tropical sun, it's essential to take precautions. For more detailed insights, check out the Freetown UV Index.
UV Risk Categories
As summer transitions into autumn, September in Freetown, Antigua and Barbuda continues to bask in abundant sunshine, with 321 hours of sunlight illuminating the tropical landscape. This marks a slight dip from the sun-drenched heights of July and May, which boast the year’s highest totals of 361 and 357 hours, respectively. However, September’s rays still contribute to a vibrant and lively atmosphere, outshining several months before it. The gradual decrease in sunshine hints at the changing seasons, yet the island remains a warm and inviting destination as it seamlessly flows into the cooler October days, which follow closely with 318 hours. As the year progresses, the sun’s embrace lingers, offering a perfect backdrop for outdoor adventures and relaxation in this Caribbean paradise.
September in Freetown, Antigua and Barbuda, boasts a 58% chance of sunny weather, making it a delightful month for sun-seekers. This figure mirrors the higher probability seen at the beginning of the year, particularly in January (58%) and February (71%), establishing a promising trend of sunny days following the peak rainy season. While the likelihood dips slightly during the summer months, it picks up again in October (55%) and November (68%), hinting that September serves as a transitional period where sunshine begins to reclaim its presence. Travelers can look forward to enjoying a balanced mix of warmth and occasional rain, providing an appealing backdrop for outdoor adventures.
In September, Freetown, Antigua and Barbuda enjoys approximately 12 hours of daylight, continuing the trend of ample sun that began in the warmer months. As summer peaks in June and July with 13 hours, daylight gradually tapers off in August and remains consistent in September. This pattern illustrates a seasonal rhythm, where daylight duration shifts slowly, reflecting the tropical climate. As the year progresses towards October, daylight begins to diminish again, dropping to 11 hours, hinting at the transition into the cooler months. This dynamic offers a beautiful balance of light as the island embraces the changing seasons.
As summer transitions into fall, September in Freetown, Antigua and Barbuda ushers in a noticeable shift in wind patterns, characterized by a gentler breeze averaging only 5.2 m/s (12 mph). This decline marks one of the year's lowest wind speeds, contrasting sharply with the more robust breezes of the preceding months. From the highest gusts of 9.2 m/s (21 mph) in February to the invigorating 8.3 m/s (19 mph) seen in July, the late summer months are typically lively. However, September's calmer winds provide a serene backdrop, creating an inviting atmosphere for those seeking a more relaxed island experience. As autumn approaches, the trend leans towards increasingly moderate conditions, hinting at the tranquil charm that continues into the later months.
Weather in Freetown varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Freetown, focusing on differences in temperature, rainfall, humidity, and UV levels.
September typically features warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (82°F), peaking at 29°C (85°F). This month also brings significant rainfall, averaging 144 mm (5.7 in) over 21 days and maintaining a high humidity level of 80%. In contrast, January offers slightly cooler weather, with temperatures ranging from a minimum of 23°C (73°F) to an average of 25°C (78°F) and a maximum of 27°C (80°F). Precipitation is markedly lower in January, totaling only 34 mm (1.4 in) across 12 days, and humidity decreases to 77%. For more details, you can check Freetown weather in January.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 25°C (77°F) to an average of 28°C (82°F), peaking at a maximum of 29°C (85°F). This month experiences a high level of humidity at 80% and significant rainfall, totaling 144 mm (5.7 in) over 21 days. In contrast, February brings milder conditions, with temperatures dipping slightly to a minimum of 22°C (72°F) and an average high of 26°C (80°F). Precipitation is much lower at 36 mm (1.4 in) over 14 days, and humidity is slightly reduced at 76%. For more detailed information, you can check Freetown weather in February.
In comparing the weather of September and March, September typically experiences warmer temperatures with an average of 28°C (82°F) and maximums reaching up to 29°C (85°F), while March averages a cooler 25°C (77°F) with maximums of 26°C (80°F). Additionally, September is marked by significantly higher precipitation, totaling 144 mm (5.7 in) over 21 days, compared to March's much drier 31 mm (1.2 in) over just 11 days. Humidity levels also reflect a slight difference, with September at 80% and March at 76%, making September feel a bit more oppressively humid. For more details on March weather, take a look at Freetown weather in March.
September and April present distinct weather characteristics that highlight the transition from late summer to early autumn. In September, the temperatures are notably higher, with a minimum of 25°C (77°F) and an average of 28°C (82°F), peaking at 29°C (85°F). This month also sees significantly more rainfall, with 144 mm (5.7 in) over 21 days, and humidity levels hovering around 80%. In contrast, April offers milder temperatures, ranging from a minimum of 23°C (74°F) to an average of 25°C (78°F), and a maximum of 27°C (82°F). The precipitation is considerably lower at 38 mm (1.5 in) spread across 14 days, and humidity is slightly less at 78%. For those interested in understanding the specific conditions during this month, more details can be found in Freetown weather in April.
When comparing the weather in September and May, September tends to be warmer, with average temperatures reaching 28°C (82°F) and maximums hitting 29°C (85°F). In contrast, May has a slightly cooler average temperature of 26°C (79°F), with a maximum of 28°C (82°F). September also experiences significantly more rainfall, with 144 mm (5.7 in) spread over 21 days, whereas May has only 49 mm (1.9 in) of precipitation over 15 days. Both months have high humidity, but September sees a slight increase at 80% compared to May's 79%. For a detailed overview of weather specifics in May, visit Freetown weather in May.
When comparing the weather in September and June, there are some notable differences. September tends to be slightly warmer, with average temperatures reaching 28°C (82°F), while June averages around 27°C (80°F). Both months experience high humidity, with September at 80% and June at 81%. However, September is significantly wetter, recording 144 mm (5.7 in) of precipitation over 21 days compared to June's 52 mm (2.0 in) over just 14 days. For more detailed insights, you can check Freetown weather in June.
In comparing the weather between September and July, September generally exhibits slightly higher temperatures with an average of 28°C (82°F), while July averages a bit cooler at 27°C (81°F). Both months have similar minimum and maximum temperatures, hovering around 25°C (77°F) and 29°C (84°F), respectively. However, September experiences significantly more rainfall, totaling 144 mm (5.7 in) over 21 days, compared to July's 81 mm (3.2 in) over 19 days. Humidity levels are also a touch lower in July at 84% versus September's 80%. For more detailed information, you can visit Freetown weather in July.
In comparing the weather between September and August, both months exhibit similar temperature ranges, with minimums around 25°C (77°F) and maximums about 29°C (84-85°F). However, September is slightly warmer on average at 28°C (82°F) compared to August's 27°C (82°F). Notably, September sees a significant increase in precipitation, totaling 144 mm (5.7 in) over 21 days, while August registers only 97 mm (3.8 in) over 18 days. Humidity levels are also slightly higher in September at 80%, compared to 83% in August, indicating a more humid environment as the months progress. For more details, you can check out Freetown weather in August.
September and October both feature warm temperatures, but there are some noticeable differences in their weather patterns. In September, the minimum temperature remains steady at 25°C (77°F), with an average of 28°C (82°F) and a maximum of 29°C (85°F). However, this month experiences higher precipitation, totaling 144 mm (5.7 in) over 21 days, resulting in a humidity level of 80%. In contrast, October sees a slight drop in average temperature to 27°C (81°F) while maintaining a minimum of 25°C (77°F) and maximum of 29°C (85°F). Additionally, October experiences decreased precipitation levels of 109 mm (4.3 in) across 18 days, along with a decrease in humidity to 79%. For more detailed insights about the weather in October, you can check out Freetown weather in October.
September and November display a subtle shift in weather patterns. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 29°C (85°F), with an average of 28°C (82°F). This month sees a considerable amount of rainfall, totaling 144 mm (5.7 in) over 21 days, contributing to a humidity level of 80%. Conversely, November experiences slightly cooler temperatures, with a minimum of 24°C (76°F), an average of 27°C (80°F), and a maximum of 28°C (83°F). Rainfall is also reduced in November, with only 94 mm (3.7 in) over 17 days, while humidity remains consistent at 80%. For more details on November weather, you can check Freetown weather in November.
In September, the weather tends to be warmer and more humid, with average temperatures around 28°C (82°F) and maximums reaching up to 29°C (85°F). This month also experiences significant rainfall, with a total of 144 mm (5.7 in) spread over 21 days, contributing to a humidity level of 80%. In contrast, December sees slightly cooler temperatures, with an average of 26°C (79°F) and maximums of 28°C (82°F), but it is much drier, receiving only 52 mm (2.1 in) of precipitation over 18 days, leading to a humidity level of 78%. For more detailed information, you can visit Freetown weather in December.
September in Freetown brings a noticeable shift in weather dynamics, characterized by its warm temperatures and frequent rainfall. With an average temperature hovering around a comfortable 28°C, it stands out as a month where the lush landscape thrives under the weight of substantial precipitation, resulting in vibrant greenery. Unlike the drier months, September sees a remarkable increase in humidity, reaching around 80%, which can make the air feel more oppressive. With rain gracing the city on 21 days, the lively yet unpredictable nature of Freetown’s September weather invites both the adventurous and the contemplative to experience its unique charm. To explore more about how weather patterns shape this delightful destination, visit Freetown Climate.