Last updated: October 31, 2025
September in Sale'a'aumua, Samoa offers a tropical experience characterized by warm temperatures and high humidity. With maximums reaching 27°C (81°F) and an average of 26°C (79°F), the climate remains inviting, while nighttime lows dip to 24°C (75°F). This month is marked by substantial rainfall, totaling 191 mm (7.5 in) spread over 25 days, contributing to the lush landscapes that define the region. Expect the air to feel quite humid, with an average humidity level of 84%, making it essential for visitors to embrace the tropical downpours and vibrant natural beauty that September brings.
In September, Sale'a'aumua, Samoa experiences a gentle transition as the temperatures remain comfortably warm. The minimum temperature hovers around 24°C (75°F), while the average sits at 26°C (79°F), creating a pleasant ambiance perfect for outdoor explorations. Max temperatures peak at about 27°C (81°F), slightly cooler than the previous months, marking a subtle shift as the region moves towards the end of its dry season. This consistency in warmth, with minimal fluctuations throughout the month, offers visitors an inviting atmosphere, ideal for soaking in the natural beauty of Samoa. Overall, September represents a serene slice of Samoan life, where warmth and comfort prevail.
In September, Sale'a'aumua, Samoa experiences a modest rainfall of 191 mm (7.5 in), marking a slight dip from the heavier downpours typical of the preceding months. This month sees approximately 25 rainy days, which keeps the region lush and vibrant but also hints at a transition towards drier conditions as the year progresses. Interestingly, the overall trend shows that while September's rainfall is less than the significant peaks of earlier months like February, it remains above average compared to the drier late summer months of July and August. As the islands shift towards October, the precipitation levels rise again, suggesting a dynamic climate that shapes the rich biodiversity of this tropical paradise.
As September arrives in Sale'a'aumua, Samoa, residents and visitors alike feel the air become increasingly damp, with humidity levels peaking at 84%. This marks a continuation of the rising trend observed over the past few months, where the humidity has climbed steadily from 81% in July to 83% in August. With October looming, which is predicted to be even more humid at 85%, it's clear that the region is entering its wet season, making the sultry atmosphere a defining feature of this time of year. This gradual increase not only underscores the tropical climate of Samoa but also prepares the island for the rejuvenating rains ahead.
In September, Sale'a'aumua, Samoa, experiences a UV Index of 14, categorized as extreme, with a burn time of just 10 minutes. This marks a slight increase from the previous month, where the UV Index was 12. The trend throughout the year shows consistently high levels of UV radiation, particularly from January to March, when the index peaks at a striking 16. Even as the year progresses into the cooler months, the UV levels remain notably high, emphasizing the importance of sun protection year-round. As you plan your outdoor activities, remember to stay informed and take precautions to enjoy the beautiful Samoan landscape safely. For more detailed information, visit Sale'a'aumua UV Index.
UV Risk Categories
September in Sale'a'aumua, Samoa, is a delightful month of radiant sunshine, with the island basking in an impressive 304 hours of sunlight. This marks a continuation of the region's sunny trend as the year progresses, showcasing a noticeable increase in daylight hours, especially when compared to the earlier months. Following the vibrant summer months of July and August, which brought 273 and 293 hours respectively, September sets the stage for autumn's arrival with a splendid brightness that’s almost rivaled by October's anticipated 309 hours. Such a consistency in sunshine not only defines the island's climate but also enhances its allure, making it an ideal destination for those seeking warmth and leisure under the Samoan sky.
During September in Sale'a'aumua, Samoa, the likelihood of sunny weather significantly increases, boasting a 70% chance of sunshine. This marks a notable peak within the yearly cycle, especially following the drier, sunnier months of July and eventually tapering off into the wetter months that follow, such as October and November. The upward trend in sunlight from earlier months, like May at 52% and June at 46%, underscores September as a prime time to soak in the sun’s warmth and enjoy the island’s natural beauty. With such favorable weather, visitors can truly experience the vibrant landscapes and welcoming outdoor activities that make this season special.
In Sale'a'aumua, Samoa, the daylight duration exhibits a reassuring rhythm throughout the year. After a shift to 11 hours of daylight from April to August, September brings a delightful return to 12 hours. This marks the reestablishment of consistency seen in the early months of the year, where days are comfortably long. As the year progresses into October through December, the daylight remains steady at 12 hours, providing a sense of balance and predictability. This cyclical pattern showcases the island's enviable location near the equator, blessed with nearly equal day and night, fostering a vibrant environment for both residents and visitors alike.
In Sale'a'aumua, Samoa, September brings a refreshing consistency in the average wind speed, measuring at a steady 5.5 m/s (12 mph). This level of wind speed mirrors the breezy August conditions, suggesting a gentle transition into the more dynamic October, which sees a slight increase to 5.7 m/s (13 mph). The trend throughout the year reveals fluctuating winds, with the calmest months occurring in late winter and early spring, while the summer months regularly whip up stronger currents, peaking in July at 6.5 m/s (15 mph). September's winds then serve as a bridge, heralding the subtle shift towards the gustier days of fall, making it an ideal time for outdoor activities amidst the mild tropical climate.
Weather in Sale'a'aumua varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sale'a'aumua, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather features a minimum temperature of 24°C (75°F) and averages around 26°C (79°F), peaking at a maximum of 27°C (81°F). This month experiences significant rainfall, with 191 mm (7.5 in) of precipitation spread over 25 days and maintaining a high humidity level of 84%.
Conversely, January showcases slightly warmer temperatures, with a minimum of 23°C (75°F), an average of 27°C (80°F), and a maximum reaching 29°C (85°F). However, it also brings heavier rainfall, totaling 322 mm (12.7 in) across 24 days, accompanied by a slightly lower humidity of 80%.
For detailed weather insights during January, you can refer to Sale'a'aumua weather in January.
In September, temperatures are relatively stable, with a minimum of 24°C (75°F) and an average of 26°C (79°F), while October sees a slight increase, reaching a maximum of 27°C (81°F). Though September experiences high humidity levels at 84%, it also has a significant amount of rainfall, with 191 mm (7.5 in) spread over 25 days.
In contrast, February enjoys slightly warmer temperatures, showcasing a minimum of 24°C (75°F), an average of 27°C (80°F), and a maximum of 29°C (85°F). However, February is notably wetter, with 474 mm (18.6 in) of precipitation occurring over 27 days, and humidity decreases to 79%. For more details, check Sale'a'aumua weather in February.
In September, the weather features a minimum temperature of 24°C (75°F) and averages around 26°C (79°F), with a maximum of 27°C (81°F). The month is characterized by high humidity levels at 84% and substantial rainfall, totaling 191 mm (7.5 in) over 25 days. In contrast, March experiences slightly warmer temperatures, with a minimum of 24°C (75°F), an average of 27°C (80°F), and a maximum of 29°C (84°F). However, it sees even more precipitation, with 219 mm (8.6 in) falling over 27 days, alongside a lower humidity of 79%. For more specific weather information, you can visit Sale'a'aumua weather in March.
September and April both feature warm temperatures, with September exhibiting a minimum of 24°C (75°F) and an average of 26°C (79°F), while April offers slightly higher averages, with a minimum of 24°C (76°F) and a maximum reaching 29°C (84°F). However, when it comes to precipitation, April is wetter, receiving 245 mm (9.6 in) over 26 days compared to September's 191 mm (7.5 in) over 25 days. Humidity levels are also noteworthy, with September being more humid at 84% compared to April's 79%. For a closer look at April weather specifics, you can refer to Sale'a'aumua weather in April.
When comparing the weather in September to that of May, both months feature similar minimum temperatures, averaging around 24°C (75°F - 76°F). However, May tends to be slightly warmer overall, with an average temperature of 27°C (80°F) and a maximum of 29°C (84°F), compared to September's maximum of 27°C (81°F). Precipitation levels are higher in May, with 231 mm (9.1 in) of rainfall over 28 days, compared to September’s 191 mm (7.5 in) over 25 days. Additionally, September has a higher humidity level at 84%, compared to May's 80%. For more specific insights into weather conditions, you can explore Sale'a'aumua weather in May.
In September, the weather features a minimum temperature of 24°C (75°F) and an average of 26°C (79°F), with a maximum reaching 27°C (81°F). The month experiences significant rainfall, accumulating to 191 mm (7.5 in) over 25 days, accompanied by high humidity levels averaging 84%. In contrast, June presents a slightly warmer climate, with temperatures ranging from 24°C (75°F) to an average of 26°C (80°F), peaking at 28°C (83°F). Precipitation in June is greater, totaling 223 mm (8.8 in) across the same number of days, but with slightly lower humidity at 80%. For a detailed look at the weather specifics, you can check out Sale'a'aumua weather in June.
When comparing the weather in September and July, we see a notable similarity in average temperatures, with both months averaging around 26°C (79°F). However, July tends to be slightly warmer, featuring a maximum temperature of 28°C (82°F) compared to September's 27°C (81°F). Precipitation levels are significantly higher in July, with 280 mm (11.0 in) of rain over 27 days, while September sees a reduction in rainfall to 191 mm (7.5 in) over 25 days. Additionally, September experiences slightly higher humidity at 84% compared to 81% in July. For a more detailed look at July's weather, you can check Sale'a'aumua weather in July.
In comparing the weather of September and August, both months exhibit warm temperatures, with September showing a slightly higher minimum temperature of 24°C (75°F) compared to August's 23°C (74°F). The average temperature remains consistent at 26°C (79°F) for both months, while September's maximum temperature reaches 27°C (81°F), just below August's peak of 28°C (82°F). Precipitation is notably higher in September, with 191 mm (7.5 in) falling over 25 days, contrasted with August’s 184 mm (7.2 in) across 24 days. Humidity levels are also quite similar, at 84% in September and 83% in August, contributing to the overall tropical feel of both months. For more detailed weather insights, you can visit Sale'a'aumua weather in August.
September and October weather show some similarities, with both months maintaining a consistent minimum temperature of 24°C (75°F) and an average of 26°C (79°F). However, October tends to be slightly warmer, reaching a maximum of 28°C (83°F) compared to September's 27°C (81°F). Rainfall is significantly higher in October, with 338 mm (13.3 in) over 28 days, compared to September's 191 mm (7.5 in) over 25 days. Additionally, humidity rises slightly from 84% in September to 85% in October, indicative of the wetter conditions. For more detailed information, you can view Sale'a'aumua weather in October.
In September, the weather features a mild temperature range with a minimum of 24°C (75°F) and an average of 26°C (79°F), while the maximum tends to reach 27°C (81°F). This month experiences significant rainfall, with 191 mm (7.5 in) over 25 days, accompanied by a high humidity level of 84%. In contrast, November shows a slightly warmer temperature variation, with a maximum reaching 28°C (83°F) while maintaining a similar minimum and average. However, this month also sees a considerable increase in precipitation, totaling 327 mm (12.9 in) over 27 rainy days, with humidity slightly reduced at 82%. For more detailed insights, you can check out Sale'a'aumua weather in November.
In comparing the weather of September and December, we see a slight increase in average temperatures, with December maintaining a minimum of 24°C (75°F) and an average of 26°C (80°F), peaking at 29°C (84°F). September, on the other hand, has a more consistent range, with temperatures typically between 24°C (75°F) and 27°C (81°F). Notably, December experiences heavier precipitation, accumulating 399 mm (15.7 in) over 29 days, compared to September’s 191 mm (7.5 in) over 25 days. Both months have high humidity levels, but September is slightly more humid at 84% compared to December's 82%. For further insights, you can check the detailed report at Sale'a'aumua weather in December.
As September unfolds in Sale'a'aumua, the weather offers a distinct and refreshing experience compared to other months. With a relatively steady average temperature hovering around a comfortable 26°C (79°F), this month typically marks the transition into the wetter season, bringing with it increased precipitation and higher humidity levels that can reach a lush 84%. The frequent rain showers, occurring on about 25 days, enrich the landscape and enhance the vibrant tropical atmosphere, making it a unique time for visitors and residents alike. For a detailed look into the region's weather patterns, be sure to check out Sale'a'aumua Climate.