Last updated: August 27, 2025
September in Iloilo, Philippines, is characterized by warm temperatures and high humidity, creating a tropical atmosphere for residents and visitors alike. The maximum temperature hovers around 31°C (88°F), while the month’s average temperature rests comfortably at 28°C (82°F), and nightly lows can dip to a mild 25°C (78°F). Rainfall is significant this month, with a total accumulation of approximately 312 mm (12.3 in) spread over 27 days, underscoring the vibrant, lush landscapes typical of the region. Amidst this, humidity levels soar to 82%, enhancing the tropical experience and reminding all to stay hydrated while enjoying Iloilo's rich cultural offerings.
In September, Iloilo, Philippines, continues to bask in warm tropical weather, with temperatures ranging from a comfortable 25°C (78°F) at night to a pleasant 31°C (88°F) during the day. This month maintains an average temperature of 28°C (82°F), consistent with the patterns seen in the preceding months. As summer transitions to the rainy season, locals and visitors can expect warm evenings and mild days, perfect for exploring the city's vibrant culture and stunning landscapes. Whether you're enjoying a leisurely stroll along the waterfront or savoring local delicacies, September's temperatures ensure an inviting atmosphere throughout the day.
In September, Iloilo experiences a significant precipitation surge, receiving 312 mm (12.3 in) of rain over 27 days. This month marks a noticeable peak in the wet season, following the heavy downpours of July and August, which saw astonishing amounts of 577 mm (22.7 in) and 549 mm (21.6 in), respectively. The extensive rain in September contributes to the overall trend of increasing precipitation as the year progresses, with the earlier months showing much lighter rainfall, such as 30 mm (1.2 in) in January and just 16 mm (0.6 in) in February. As the year advances towards October, the rainfall starts to moderate slightly, but the significant water intake during September underscores its vital role in supporting the region's lush landscapes and agricultural activities.
In September, Iloilo, Philippines, experiences a notable humidity level of 82%, slightly lower than the peaks observed in the previous months of July and August, which both recorded 83%. This gradual decline in humidity signals a transition as the wet season begins to ease, paving the way for October’s slightly crisp air at 80%. Notably, the humidity levels in Iloilo show an upward trend from January’s 74%, steadily climbing to a high of 84% in November. This fluctuation not only characterizes the tropical climate but also highlights the shift in comfort levels as the year progresses.
In September, Ilioilio, Philippines, feels the relentless strength of the sun with a UV Index of 14, maintaining its extreme exposure category and a rapid burn time of just 10 minutes. This month continues a trend observed since March, where the UV Index has consistently hovered around the extreme level of 14, warning residents and visitors alike of the potential sun damage. Notably, the risk remains high from the dry season into the wet, as the UV levels showcase minimal fluctuation, emphasizing the importance of sun protection throughout the month. To stay informed and safe, check out the comprehensive details at Ilioilio UV Index.
UV Risk Categories
As summer draws to a close, September in Iloilo, Philippines offers a delightful transition with 270 hours of sunshine. This month sees a slight increase from August's 242 hours, hinting at a lingering warmth before the cooler months set in. The trend of rising sunshine hours peaks in late spring, with May basking in an impressive 325 hours. While September’s hours don’t reach those soaring heights, they still contribute to the overall narrative of a sun-drenched year, maintaining a strong average that keeps the spirit of summer alive just a little longer. As the year progresses into October, with its 286 hours of sunlight, the region continues to enjoy a vibrant tapestry of sunshine, perfect for exploring its natural beauty and vibrant culture.
In September, Ilioilio, Philippines, experiences a 25% chance of sunny weather, a slight uptick from the dismal summer months of June, July, and August, where the sun shines only about 15%, 11%, and 9% of the time, respectively. This gradual increase suggests a break from the rainy season, hinting at more favorable conditions as the month progresses. However, it's still a far cry from the more luminous months like March and May, which boast chances of sunshine above 60%. As the year transitions into the latter months, October offers a 32% chance, indicating that while September may not be the sunniest month, the promise of clearer skies is on the horizon.
In Iloilo, Philippines, the daylight duration exhibits a consistent yet subtle rhythm throughout the year. As we transition from January to March, there’s a gradual increase in daylight, peaking at 13 hours in June. This summer surge provides extended opportunities for daytime activities, before the daylight starts to taper off again. By September, the daylight returns to a comfortable 12 hours, mirroring the stability seen in the preceding months of April, May, July, and August. This pattern underscores Iloilo's relatively balanced daylight hours, with only minor fluctuations, creating a predictable and pleasant environment for both residents and visitors alike. As the year winds down into October, daylight retreats once more to 11 hours, hinting at the upcoming cooler months.
As September arrives in Iloilo, Philippines, the winds begin to soften, with an average speed of just 2.6 m/s (6 mph). This marks a notable decrease from the robust 4.8 m/s (11 mph) experienced in July and 4.0 m/s (9 mph) in August, reflecting the gradual transition from the stronger gusts of the rainy season to the calmer breezes of the later months. While September's winds are lighter, they still create a refreshing atmosphere, perfect for enjoying the vibrant landscapes. This gentle shift heralds the arrival of more stable weather patterns, as residents and visitors alike embrace the milder conditions that trail the seasonal peak.
Weather in Ilioilio varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ilioilio, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is noticeably warmer and wetter, with temperatures ranging from a minimum of 25°C (78°F) to a maximum of 31°C (88°F) and an average of 28°C (82°F). The month is characterized by high humidity at 82% and significant rainfall, accumulating 312 mm (12.3 in) over 27 days. In contrast, January offers a slightly cooler and much drier climate, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (87°F), averaging 27°C (81°F). The rainfall drops dramatically to only 30 mm (1.2 in) over just 3 days, and the humidity decreases to 74%. For more detailed insights on Ilioilio's weather in January, visit Ilioilio weather in January.
In comparing the weather between September and February, September is notably warmer and wetter. With temperatures ranging from a minimum of 25°C (78°F) to a maximum of 31°C (88°F) and averaging 28°C (82°F), it offers a more tropical climate. However, it also experiences significant rainfall, with 312 mm (12.3 in) spread across 27 days, resulting in a high humidity level of 82%. In contrast, February presents a slightly cooler atmosphere with temperatures varying from 22°C (73°F) to 31°C (88°F) and an average of 27°C (80°F). This month sees minimal precipitation of just 16 mm (0.6 in) over 4 days and lower humidity at 73%, making it a much drier period. For more detailed information on the February climate, you can check Ilioilio weather in February.
In comparing the weather between September and March, we see notable differences despite having similar average temperatures, with both months averaging around 28°C (82°F). September tends to be much wetter, receiving a substantial 312 mm (12.3 in) of rainfall over 27 days, leading to high humidity levels at 82%. In contrast, March enjoys a significantly drier climate with only 13 mm (0.5 in) of precipitation over just 3 days, accompanied by relatively lower humidity at 74%. This makes March a more favorable time for outdoor activities compared to the often rainy September. For more detailed insights on March weather, you can check out Ilioilio weather in March.
When comparing the weather in September and April, both months exhibit warm temperatures, but with notable differences in precipitation and humidity. In September, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with an average of 28°C (82°F). However, this month is characterized by heavy rainfall, receiving a substantial 312 mm (12.3 in) over 27 days and an average humidity of 82%. In contrast, April offers slightly warmer conditions, with temperatures peaking at 32°C (90°F) and a similar average of 28°C (83°F), but it experiences much less rainfall, totaling only 25 mm (1.0 in) across just 7 days. The humidity is also lower in April at 76%. For more detailed insights, you can visit Ilioilio weather in April.
In September, the weather tends to be warm and humid, with average temperatures ranging from 25°C (78°F) to a maximum of 31°C (88°F). This month sees significant rainfall, with approximately 312 mm (12.3 inches) of precipitation spread over 27 days, resulting in a humidity level of 82%. In contrast, May offers slightly warmer conditions, with temperatures averaging between 26°C (78°F) and peaking at 33°C (91°F). The rainfall is notably reduced, with just 129 mm (5.1 inches) falling over 18 days, leading to a more comfortable humidity level of 76%. For more detailed information, you can check Ilioilio weather in May.
In comparing the weather of September and June, we find some notable similarities and differences. Both months feature warm average temperatures, with September having a minimum of 25°C (78°F), while June starts slightly higher at 26°C (79°F). The maximum temperatures are also comparable, peaking at 31°C (88°F) in September and 32°C (90°F) in June. However, June tends to experience more precipitation, with 365 mm (14.4 in) over 25 rainy days compared to September's 312 mm (12.3 in) over 27 days. Humidity levels are slightly higher in September at 82%, compared to June's 79%. For more detailed insights on June weather, check out Ilioilio weather in June.
When comparing the weather in September and July, both months exhibit similar temperature ranges, with minimum temperatures hovering around 25-26°C (78-79°F) and average highs reaching up to 31°C (88°F). However, July stands out with significantly higher precipitation, totaling 577 mm (22.7 in) over 29 days, compared to September's 312 mm (12.3 in) over 27 days. Additionally, humidity levels are marginally higher in July at 83%, compared to 82% in September. For more detailed insights, you can check the following link: Ilioilio weather in July.
In comparing the weather of September and August, we see a slight increase in minimum temperatures during September, with a minimum of 25°C compared to August's 26°C. Both months have similar average and maximum temperatures, maintaining a warm climate with highs reaching 31°C. However, September experiences significantly less precipitation, totaling 312 mm over 27 days, in contrast to August's 549 mm across 28 days. Humidity levels remain comparable, with September at 82% and August at 83%. This indicates that while both months are warm and humid, September is generally drier than August. For more detailed information on August weather, you can visit Ilioilio weather in August.
In comparing the weather of September and October, we see that September typically features slightly higher humidity at 82% and an average temperature of 28°C (82°F). The month experiences significant rainfall, with a total precipitation of 312 mm (12.3 in) over 27 days, making it one of the wetter months. In contrast, October maintains a similar average temperature of 28°C (83°F) but sees a slight drop in humidity to 80% and reduced rainfall, totaling 239 mm (9.4 in) over just 18 days. This results in more stable and drier conditions as October progresses. For more detailed insights into the weather patterns in Ilioilio during October, you can visit Ilioilio weather in October.
In comparing the weather between September and November, both months exhibit warm temperatures, with September having a minimum of 25°C (78°F) and November slightly warmer at a minimum of 26°C (79°F). The average temperatures remain consistent, hovering around 28°C (82°F), while November can peak slightly higher with a maximum of 32°C (90°F) compared to September's 31°C (88°F). A notable difference lies in precipitation; September experiences significantly more rainfall, with 312 mm (12.3 in) over 27 days, while November sees a much drier spell with only 119 mm (4.7 in) across 10 days. Humidity levels are comparable, with September at 82% and November slightly higher at 84%. For more detailed insights, you can visit Ilioilio weather in November.
In September, the weather is characterized by higher humidity levels and substantial rainfall, with an average temperature of 28°C (82°F) and precipitation reaching 312 mm (12.3 in) over 27 days. In contrast, December experiences a similar average temperature of 28°C (82°F), but with significantly less precipitation of just 46 mm (1.8 in) across only 9 days. The humidity remains relatively stable, hovering around 81% in December. This shift results in a less wet and more comfortable climate by the end of the year. For more details, check out Ilioilio weather in December.
As September unfolds in Ilioilio, the weather showcases a unique character compared to other months. With temperatures reaching a maximum of 31°C and an average of 28°C, it remains warm, but what truly sets September apart is the significant precipitation—a hefty 312 mm falling over 27 days. This increased rainfall contributes to a high humidity level of 82%, creating a humid atmosphere that is markedly different from the drier months. As such, September marks a transition that is both vibrant and lush, inviting visitors to experience the lush landscapes and the invigorating rain. For a deeper dive into the climatic patterns and nuances of Ilioilio, check out Ilioilio Climate.