Last updated: August 27, 2025
September weather in Rizal, Philippines is characterized by warm temperatures and significant rainfall. With maximums reaching 32°C (89°F) and an average of 25°C (77°F), the month offers a tropical climate perfect for those seeking warmth. However, the temperature can dip to a minimum of 17°C (63°F) at night, providing a refreshing contrast. Rainfall is substantial, with a total of 255 mm (10.0 in) distributed over 24 rainy days, resulting in a high humidity level of 87%. This combination creates a lush, verdant landscape, typical of the region’s vibrant ecosystem. Ideal for exploring the natural beauty, but visitors should be prepared for frequent showers.
In September, Rizal, Philippines, experiences a delightful shift in temperatures as the transition from the sultry summer months begins. With a minimum temperature of 17°C (63°F), the nights are refreshing without being too chilly. The average temperature rises to a comfortable 25°C (77°F), making it an ideal time for outdoor explorations and enjoying the vibrant surroundings. Daytime highs peak at 32°C (89°F), striking a balance between warmth and comfort. This month marks a gentle decline in maximum temperatures compared to the scorching heat of summer, creating a pleasant atmosphere perfect for experiencing the rich culture and beauty of this region.
September brings a substantial 255 mm (10.0 in) of rainfall to Rizal, marking it as a significant month in the region's wet season. This precipitation occurs over about 24 days, contributing to the lush, vibrant landscapes that characterize the area during this time. While September's total is slightly lower than the intense rainfall seen in both July (331 mm) and August (302 mm), it still showcases a robust pattern of moisture typical of the months leading into the tail end of the rainy season. The overall trend indicates a gradual tapering off of rainfall following the peak months, yet still provides ample water that sustains the biodiversity and agricultural opportunities in Rizal. As October approaches, a slight increase in rainfall is expected, maintaining the region's lushness as it transitions towards the drier months ahead.
In September, Rizal, Philippines, experiences a notable rise in humidity, peaking at 87%, which mirrors the high levels seen in August. This trend of increased humidity throughout the monsoon season showcases a gradual buildup, starting from a more moderate 77% in January and descending to 71% by March. As the year progresses, humidity levels soar, particularly between June and September, highlighting the region's tropical climate. Following September, humidity slightly declines but remains elevated, showcasing the lingering effects of the wet season as October comes in at 86%. This consistent moisture not only influences daily life in Rizal but also adds to the lush greenery characteristic of the area.
In September, Rizal, Philippines, experiences a UV Index of 14, categorizing it as extreme with a burn time of just 10 minutes. This month aligns with the trend observed from April to August, where the UV Index consistently ranges between 14 and 15, underscoring a prolonged period of intense sun exposure. With the arrival of September, the UV levels remain high but dip slightly as we transition into October, where the index decreases to 13. It’s essential for residents and visitors alike to stay vigilant and protect their skin during these sunny months. For more insights on managing sun exposure, visit Rizal UV Index.
UV Risk Categories
September in Rizal, Philippines, brings a delightful 270 hours of sunshine, continuing a vibrant trend of warm and sunny weather. As the year progresses, it's fascinating to observe the steady climb in sunlight hours from January's modest 222 hours up to the peak 310 hours in May. Although there’s a slight dip in August to 260 hours, September bounces back with a reassuring amount of sunshine, fitting snugly in the third quarter of the year. The sunlight hours gradually decrease as the year comes to a close, but September remains a key month where the sunshine still shines brightly, inviting residents and visitors alike to bask in the warmth before the cooler months arrive.
As September unfolds in Rizal, Philippines, the likelihood of basking in sunny weather stands at a moderate 32%. This marks a slight increase from the preceding months of rain-soaked August and July, which see chances of sunshine dip to 14% and 18%, respectively. The transition towards the latter part of the year showcases a gradual recovery in sunny days, following a brilliant surge in May, where the sun shines a remarkable 62% of the time. While September may not rival the peak sunshine months, it offers a welcome respite from the preceding monsoon influences, hinting at a promising blend of sun and clouds as the landscape begins to shift in anticipation of the cooler months ahead.
In Rizal, Philippines, the month of September enjoys a pleasant 12 hours of daylight, mirroring the trends seen in the preceding months. As the year progresses from the bright days of June and July, when daylight peaks at 13 hours, there is a subtle shift towards shorter days with the return to 12 hours in August and September. This stabilizing pattern precedes the crisp and cooler months ahead, where daylight recedes to 11 hours as the year winds down. Overall, the gradual ebb and flow of daylight not only enhances the beauty of Rizal’s landscape but also marks the gentle transition between the vibrant warmth of mid-year and the refreshing embrace of autumn.
As the September winds sweep through Rizal, Philippines, they carry a gentle calm with an average speed of 1.4 m/s (3 mph), making it one of the quieter months for breezes. This slight dip in wind speed from the preceding months reflects a trend of gradual softening as the year progresses towards the more active breezes of December. Notably, the initial half of the year sees winds ranging from 1.5 to 2.0 m/s (3 to 4 mph), peaking in January, before tapering off during September. However, as the landscape gears up for the onset of the dry season, the winds will soon regain some momentum in October, foreshadowing a refreshing transition as the year winds down.
Weather in Rizal varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rizal, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather tends to be quite warm and humid, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 32°C (89°F) and an average of 25°C (77°F). The month experiences significant rainfall, totaling 255 mm (10.0 in) over 24 days, contributing to a high humidity level of 87%. In contrast, January brings milder temperatures, with a minimum of 14°C (58°F), an average of 20°C (69°F), and a maximum of 29°C (85°F). The precipitation in January is less, at 202 mm (7.9 in) spread across 19 days, accompanied by a lower humidity of 77%. For a more detailed look at January weather conditions, you can visit Rizal weather in January.
September and February present notable differences in weather patterns. September typically features warmer temperatures, with a minimum of 17°C (63°F) and an average of 25°C (77°F), peaking at 32°C (89°F). This month is also characterized by significant rainfall, totaling 255 mm (10.0 in) over about 24 days and high humidity levels at 87%. In contrast, February offers milder conditions, with temperatures ranging from a minimum of 12°C (54°F) to an average of 20°C (69°F) and a maximum of 28°C (83°F). Precipitation in February is lower at 198 mm (7.8 in), occurring over roughly 18 days, and humidity is more comfortable at 73%. For more detailed information about February weather, you can check Rizal weather in February.
September and March present distinct weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 32°C (89°F), with an average of 25°C (77°F). This month also experiences significant rainfall, totaling 255 mm (10.0 in) over 24 days, resulting in high humidity levels of 87%. In contrast, March features slightly cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 31°C (88°F), averaging at 22°C (72°F). Precipitation is markedly lower in March, with 116 mm (4.5 in) spread across 18 days and a humidity level of 71%. For more details on the weather specifics in March, visit Rizal weather in March.
In comparing the weather of September and April, September tends to be warmer with average temperatures reaching 25°C (77°F), peaking at a maximum of 32°C (89°F), while April is slightly cooler with an average of 23°C (74°F) and a maximum of 31°C (89°F). However, September is significantly wetter, receiving 255 mm (10.0 in) of precipitation over 24 days compared to April's 167 mm (6.6 in) over 22 days. Furthermore, September's humidity is higher at 87%, creating a more tropical feeling, whereas April has a lower humidity level of 73%, resulting in a more comfortable atmosphere. For more detailed insights into the weather in April, you can check out Rizal weather in April.
September and May present distinct weather contrasts. In September, the average temperature is 25°C (77°F), with daily highs reaching up to 32°C (89°F) and lows of 17°C (63°F). It also experiences substantial rainfall, totaling 255 mm (10.0 in) over 24 days, along with high humidity at 87%. In contrast, May offers slightly warmer temperatures, with an average of 25°C (78°F), peaking at 34°C (93°F) and a minimum of 19°C (66°F). While May sees a higher precipitation level of 282 mm (11.1 in) across 20 days, the humidity is somewhat lower at 77%. For more information on Rizal weather in May, check this link: Rizal weather in May.
In comparing the weather between September and June, we notice several key differences. September boasts a slightly lower average temperature, with a minimum of 17°C (63°F) and a maximum of 32°C (89°F), compared to June's minimum of 20°C (69°F) and maximum of 34°C (93°F). While June has marginally less precipitation at 211 mm (8.3 in) compared to September's 255 mm (10.0 in), both months are characterized by frequent rainfall, occurring on 24 days. Humidity levels are quite similar, with September at 87% and June at 85%. For more information on June weather patterns, you can check Rizal weather in June.
In comparing the weather of September and July, we see that both months experience warm temperatures, with July slightly warmer overall. September has a minimum temperature of 17°C (63°F) and an average of 25°C (77°F), while July's minimum is higher at 20°C (69°F) and maintains the same average. The maximum temperatures are comparable too, with September reaching up to 32°C (89°F) and July slightly higher at 33°C (91°F). However, September sees a significant increase in precipitation, totaling 255 mm (10.0 in) over 24 days, compared to July's 331 mm (13.1 in) over 27 days. Both months are quite humid, with September at 87% and July just slightly lower at 86%. For a more detailed look at July weather, check out this link: Rizal weather in July.
In comparing the weather patterns of September and August, we see that September offers slightly cooler minimum temperatures, ranging from 17°C (63°F) compared to August's minimum of 20°C (69°F). Both months share similar average temperatures at around 25°C (77°F), and the maximum temperatures remain consistent at 32°C (89°F) in September and 32°C (90°F) in August. However, September experiences less rainfall, with 255 mm (10.0 in) over 24 days, whereas August has a higher precipitation total of 302 mm (11.9 in) across 27 days. Both months maintain high humidity levels at 87%. For a more detailed look at August weather trends, you can refer to Rizal weather in August.
September and October exhibit notable similarities and differences in weather patterns. In September, temperatures are slightly warmer with an average of 25°C (77°F), peaking at 32°C (89°F), while October sees a slight drop in average temperature to 23°C (75°F) and a maximum of 31°C (87°F). Precipitation remains high in both months, with September receiving 255 mm (10.0 in) over 24 days, compared to October's 260 mm (10.2 in) spread across 26 days. Humidity levels in both months are comparable, standing at 87% for September and slightly lower at 86% for October. For more detailed insights, you can check Rizal weather in October.
In September, the weather is warm with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 32°C (89°F), resulting in an average of 25°C (77°F). However, this month also sees significant rainfall, with 255 mm (10.0 in) of precipitation over 24 days and humidity levels at 87%. In contrast, November offers slightly cooler temperatures, with an average of 23°C (73°F) and highs reaching 30°C (86°F). It also experiences higher rainfall, recording 318 mm (12.5 in) of precipitation over 22 days and similar humidity levels at 89%. For more detailed information about the weather in November, you can visit Rizal weather in November.
In comparing the weather between September and December, both months exhibit relatively mild temperatures, but December is slightly cooler overall. September typically sees a minimum temperature of 17°C (63°F) and averages around 25°C (77°F), reaching a maximum of 32°C (89°F). In contrast, December has a slightly lower minimum of 15°C (59°F) and an average of 21°C (70°F), peaking at 29°C (84°F).
Precipitation is notably higher in December, with 453 mm (17.8 in) spread over 26 days, compared to September's 255 mm (10.0 in) across 24 days. The humidity levels are similar, hovering around 87% in September and 85% in December. For a detailed look at December weather specifics, visit Rizal weather in December.
As September rolls in, Rizal experiences a notable shift in weather characterized by increased humidity and frequent rainfall. Unlike the drier months, this time of year sees a marked uptick in precipitation, with almost half the month greeted by showers that contribute to the lush greenery of the landscape. Average temperatures remain pleasant, with highs balancing the coolness of nights, making it a compelling time for nature lovers and travelers. If you're planning a visit or want to learn more about how Rizal's climate varies throughout the year, check out Rizal Climate.