Last updated: August 21, 2025
In Puerto Ayora, Ecuador, September brings mild temperatures and an inviting climate for visitors. With maximum highs of 27°C (80°F) and a pleasant average of 22°C (71°F), the weather is perfect for exploring the vibrant surroundings. The nights are comfortably cool, dipping to a minimum of 17°C (64°F). Remarkably, precipitation is minimal, with only 5 mm (0.2 in) expected and no rainy days, making it an ideal time for outdoor activities. Coupled with a high humidity level of 90%, the air feels fresh and invigorating, promising a delightful experience in this stunning part of the Galápagos Islands.
In September, Puerto Ayora experiences a pleasant drop in temperatures, with minimums dipping to 17°C (64°F) and average highs around 27°C (80°F). The month marks a transition towards cooler weather, maintaining an average of 22°C (71°F). This shift is in contrast to the warmer summer months, where temperatures hover between 25-31°C earlier in the year. As the region moves from the peak warmth of summer, September invites visitors to enjoy lower humidity and comfortable conditions, making it an ideal time to explore the breathtaking landscapes and wildlife of the Galápagos Islands.
In September, Puerto Ayora experiences a notable shift towards dry conditions, mirroring the trends of the preceding months. With a meager precipitation total of just 5 mm (0.2 in), this month sees no recorded rainfall days, continuing the streak of minimal precipitation that began in August. This transition from wetter months like February and April, which brought heavy rains typical of the region, leads into a drier spell characterized by less frequent showers. As the year progresses, September's dryness sets the stage for a gradual decline in precipitation leading into the final quarter, underscoring the seasonal variability that defines the climate of this picturesque Ecuadorian locale.
In September, Puerto Ayora experiences a humidity level of 90%, continuing a pattern established throughout the year. As the months progress from January’s 90% to July’s peak at 95%, the island showcases a trend where humidity remains persistently high, often hovering above 90%. With August at 91% and October at a steady 90%, it's clear that the climate is characterized by consistent moisture, contributing to the lush biodiversity of the Galápagos. This stable humidity not only creates a tropical atmosphere but also affects day-to-day life on the islands, making it essential for visitors to prepare for a warm, humid experience in this exquisite corner of Ecuador.
In September, Puerto Ayora, Ecuador experiences a UV Index of 13, categorizing the sun's intensity as extreme with a burn time of just 10 minutes. Following the upward trend seen from January to March, where the index peaked at 16, the UV levels then stabilize slightly before descending through the fall months. This month reflects a subtle dip compared to the preceding summer, yet the commitment to sun safety remains critical. Staying vigilant during outdoor activities is essential, as even a fleeting moment in the sun can lead to harmful effects. For detailed information on solar exposure, you can explore the Puerto Ayora UV Index.
UV Risk Categories
As September unfolds in Puerto Ayora, Ecuador, it brings a delightful blend of sunshine, contributing 287 hours of radiant daylight. This marks a seasonal shift after the peak of May's 326 hours, indicating a gradual transition toward the slightly cooler months ahead. The sunshine trend shows steady brightness throughout the year, with a notable mid-year peak in March at 321 hours, followed closely by April and May. With September's hours still robust, it mirrors the sunnier days of late summer, inviting residents and tourists alike to bask in the island's vibrant atmosphere before the year winds down into October's 304 hours. Each month reveals a story of nature's rhythms, where sunlight plays a vital role in the island's charm.
As September rolls around in Puerto Ayora, Ecuador, the likelihood of sunny weather drops to 25%, positioning it among the months with the least sunshine. This trend continues a pattern of declining sunlight that begins in the peak summer months. After a brief peak in May at 44%, the chance of clear skies diminishes through the late summer, with August and September showing a notable decrease in sunny days. Interestingly, the city experiences a slight uptick in sunshine again in November, suggesting that while September may be a bit dreary, brighter days are just around the corner. Travelers seeking sun should consider timing their visits for later in the year to maximize their chances of clear skies.
In September, Puerto Ayora, Ecuador, continues to bask in the consistent embrace of daylight that characterizes this Equatorial paradise. With 12 hours of daylight each day, the island remains a stunning destination for exploration and relaxation. This seamless consistency in daylight spans the entire year, highlighting a remarkable environmental stability that offers visitors an uninterrupted opportunity to enjoy the breathtaking natural beauty and rich biodiversity. Whether it's a leisurely stroll along the beach or an adventurous excursion into the wild, September delivers the perfect canvas of light, inviting everyone to experience the allure of this tropical haven.
As September unfolds in Puerto Ayora, Ecuador, the wind continues to weave its story, maintaining an average speed of 4.5 m/s (10 mph), a slight dip from the peak reached in the previous months of July and August. This consistent breeze mirrors the pattern seen throughout the year, where the early months of the year witness much gentler winds, reflecting an overall gradual increase as the calendar progresses. Following a noticeable rise from May to August, September's stabilization hints at a seasonal transition, marking a time when the refreshing gusts invite both locals and visitors to embrace the vibrant surroundings. The winds remain robust enough to stir the senses, yet gentle enough to create a pleasant atmosphere for adventure seekers exploring the enchanting Galápagos archipelago.
Weather in Puerto Ayora varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Puerto Ayora, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between September and January, we can see significant differences in temperature and precipitation. September experiences milder conditions with average temperatures ranging from a minimum of 17°C (64°F) to a maximum of 27°C (80°F), accompanied by very little rainfall—only 5 mm (0.2 in) over the month and no rainy days, while maintaining a high humidity level of 90%. On the other hand, January tends to be warmer, with temperatures averaging between a minimum of 20°C (69°F) and a maximum of 31°C (88°F). This month sees a notable increase in rainfall, accumulating 38 mm (1.5 in) and experiencing rain on 11 days. Both months have high humidity levels at 90%, but January's additional warmth and precipitation create a different atmospheric experience. For more details, you can check Puerto Ayora weather in January.
In September, the weather is quite pleasant with mild temperatures ranging from a minimum of 17°C (64°F) to a maximum of 27°C (80°F), coupled with low precipitation levels of just 5 mm (0.2 in) and no rainy days, making it an ideal time for outdoor activities. In contrast, February experiences warmer conditions with temperatures rising from a minimum of 22°C (72°F) to a maximum of 32°C (91°F). However, this month is significantly wetter, receiving 101 mm (4.0 in) of rainfall over 16 days, with humidity remaining relatively high at 88%. For more detailed insights into February's climatic conditions, you can check out Puerto Ayora weather in February.
In comparing the weather between September and March, notable differences emerge in temperature and precipitation levels. September enjoys milder temperatures, with a minimum of 17°C (64°F) and an average of 22°C (71°F), while March is warmer, featuring a minimum of 23°C (74°F) and reaching up to 32°C (90°F). In terms of rainfall, September experiences minimal precipitation at just 5 mm (0.2 in) over 0 days, whereas March sees significantly higher levels, with 85 mm (3.3 in) spread over 13 days. Humidity levels remain relatively consistent, hovering around 90% in September and slightly lower at 87% in March. This contrast illustrates the transition from the dry season in September to the wetter months of March. For more detailed information, you can check Puerto Ayora weather in March.
September and April present contrasting weather experiences. In September, temperatures range from a mild 17°C (64°F) at night to a comfortable 27°C (80°F) during the day, with minimal precipitation of just 5 mm and no rainy days, contributing to a high humidity level of 90%. In contrast, April boasts warmer temperatures, with nighttime lows of 21°C (70°F) and daytime highs reaching up to 32°C (90°F). However, April is also significantly wetter, receiving around 100 mm (3.9 in) of rainfall over 17 days, while maintaining a similar humidity level of 89%. For more detailed information, check out Puerto Ayora weather in April.
In September, the weather in Puerto Ayora is typically mild, with temperatures ranging from a minimum of 17°C (64°F) to a maximum of 27°C (80°F) and an average of 22°C (71°F). The month is relatively dry, with only 5 mm (0.2 in) of precipitation over 0 days, and a comfortable humidity level at 90%. In contrast, May experiences warmer temperatures, with a minimum of 21°C (70°F) and a maximum of 30°C (87°F), averaging around 25°C (78°F). However, May is significantly wetter, receiving about 38 mm (1.5 in) of rainfall over 14 days, and maintaining a similar humidity level at 92%. For more insights on May's weather conditions, you can check Puerto Ayora weather in May.
In September, the weather in Puerto Ayora offers slightly milder temperatures, with a minimum of 17°C (64°F) and an average of 22°C (71°F), while June sees warmer conditions, starting at a minimum of 20°C (69°F) and averaging 24°C (75°F). Both months experience relatively low precipitation, but September stands out with virtually no rainy days, receiving only 5 mm (0.2 in) of rainfall, compared to June's 12 mm (0.5 in) over three days. Humidity levels are marginally lower in September at 90%, compared to a higher 95% in June, making September feel somewhat less sticky despite its cooler temperatures. For a more detailed look at June’s weather patterns, you can visit Puerto Ayora weather in June.
In comparing the weather of September and July, both months showcase warm temperatures with July having slightly higher minimum and average temperatures. September offers a minimum of 17°C (64°F) and an average of 22°C (71°F), while July presents a minimum of 19°C (66°F) and an average of 23°C (73°F). Both months share the same maximum temperature of 27°C (81°F) but differ in humidity, with September being a tad lower at 90% compared to July's 92%. Additionally, September enjoys less precipitation, registering only 5 mm (0.2 in) over zero days, whereas July experiences 7 mm (0.3 in) over one day. For more details on July weather, visit Puerto Ayora weather in July.
In comparing the weather between September and August, we find that both months offer similar conditions with only slight variations. September has a minimum temperature of 17°C (64°F) and an average of 22°C (71°F), while August starts a degree warmer with a minimum of 18°C (65°F) but shares the same average and maximum temperatures of 22°C (72°F) and 27°C (81°F), respectively. Precipitation levels remain consistent at 5 mm (0.2 in) with no rainy days in either month. Humidity is slightly lower in September at 90% compared to August's 91%, making September feel just a touch more comfortable. For more details on the weather in August, you can visit Puerto Ayora weather in August.
In September, the weather features a comfortable average temperature of 22°C (71°F), with a minimum of 17°C (64°F) and a maximum of 27°C (80°F). The month experiences negligible precipitation, only 5 mm (0.2 in), and maintains a consistent humidity level of 90%. October shows a slight increase in the minimum temperature to 18°C (65°F), while the average and maximum temperatures remain the same as in September. The precipitation decreases slightly to 4 mm (0.2 in), with no rainy days reported, and humidity remains steady at 90%. For more detailed weather information, you can check Puerto Ayora weather in October.
In September, temperatures range from a minimum of 17°C (64°F) to a maximum of 27°C (80°F), with an average of 22°C (71°F). The month is characterized by minimal precipitation, recording only 5 mm (0.2 in) with no rainy days, and humidity levels remain high at 90%.
In comparison, November sees slightly warmer temperatures, with a minimum of 18°C (65°F) and the same maximum of 27°C (82°F), maintaining an average of 22°C (72°F). Like September, November experiences very little precipitation, at just 4 mm (0.2 in) and no rainy days, alongside consistent humidity levels of 90%. For more detailed information, you can visit Puerto Ayora weather in November.
In September, the weather in Puerto Ayora features a mild range of temperatures, with a minimum of 17°C (64°F), an average of 22°C (71°F), and a maximum of 27°C (80°F). This month experiences very little precipitation, totaling just 5 mm (0.2 in) over 0 days, while humidity remains high at 90%.
Contrastingly, December brings slightly higher temperatures, with a minimum of 19°C (67°F), an average of 23°C (75°F), and a maximum of 29°C (84°F). However, it is also wetter, receiving 17 mm (0.7 in) of rainfall over 5 days and maintaining a similar humidity level of 91%. For a more detailed look at the specific weather patterns, you can check Puerto Ayora weather in December.
September in Puerto Ayora offers a unique weather experience, characterized by pleasantly warm temperatures and notably low precipitation. Unlike many other months, when rain can interrupt outdoor plans, September boasts zero days of rain, allowing for uninterrupted exploration of the stunning Galapagos landscapes. With humidity levels consistently high, the air feels lush and tropical, creating a vibrant atmosphere for visitors. This combination of warmth and dryness makes September an ideal time for wildlife viewing and enjoying the natural beauty of the islands. For a deeper dive into what you can expect throughout the year, check out the detailed Puerto Ayora Climate.