September Weather in Bonifacio, Philippines

Last updated: August 27, 2025

September in Bonifacio, Philippines offers a warm and humid climate, with temperatures peaking at a maximum of 34°C (93°F) and settling at an average of 27°C (80°F), while the nights cool down to a pleasant 22°C (72°F). This month experiences substantial rainfall, with a total precipitation of 402 mm (15.8 in) over approximately 27 rainy days, creating a lush environment. The high humidity, averaging 87%, contributes to the tropical feel, making it essential for visitors to prepare for both warmth and frequent showers.

September Temperature in Bonifacio

In September, Bonifacio, Philippines, embraces a tropical climate characterized by mild temperatures that continue the trend established in the preceding months. With a minimum temperature hovering around 22°C (72°F) and an average temperature of 27°C (80°F), the month offers a pleasant respite from the peak summer heat. The maximum temperature reaches 34°C (93°F), making it a warm but manageable month. September's climate represents a subtle shift towards more stable, milder conditions, as the high temperatures remain consistent with those seen in August, while still hinting at the cooling trend of the upcoming months. This moderate weather makes it an ideal time to explore the vibrant surroundings of Bonifacio, inviting both adventure and relaxation.

September Weather in Bonifacio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bonifacio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bonifacio, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec808182848281808080818181
Data source: Temperature data for Bonifacio generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Bonifacio

In September, Bonifacio, Philippines, experiences a significant peak in precipitation, recording an impressive 402 mm (15.8 in) over 27 days of rain. This makes September the wettest month of the year, exceeding even the heavy rains of the preceding months, such as July and August, which had 320 mm (12.6 in) and 260 mm (10.2 in), respectively. The trend of increasing rainfall from the drier months of early in the year culminates in this dramatic surge, suggesting a robust monsoon influence. Following September, precipitation remains substantial but tapers off slightly in October to 334 mm (13.1 in), indicating a gradual shift towards drier conditions as the region moves into the latter part of the year.

September Precipitation Trends in Bonifacio

The chart displays monthly precipitation patterns in Bonifacio, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Bonifacio, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec131787794253239321260402334178158
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Bonifacio

In September, Bonifacio, Philippines, experiences a notable rise in humidity, climbing to 87%, which is the peak for the year. This increase follows a trend of relatively high humidity throughout the summer months, particularly noticeable in August at 84% and July at 83%. As the country transitions from the dry spell of April and May, where levels dipped to 79% and 81%, September's heightened humidity creates a lush and vibrant landscape. Subsequently, the humidity begins to moderate as October approaches, settling back to 82%. This fluctuation not only signifies the onset of the rainy season but also contributes to the region's rich biodiversity and lush environment.

September Average Humidity in Bonifacio

This chart illustrates the average monthly humidity levels in Bonifacio, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Bonifacio is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%79%81%84%83%84%87%82%83%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bonifacio

September in Bonifacio, Philippines, continues the trend of extreme UV exposure, boasting an impressive UV Index of 15, which is just shy of the summer peak observed in previous months. This marks a slight dip from the scorching highs of 16 in both March and April, yet remains indicative of the region's relentless sun. With a consistent burn time of only 10 minutes, it’s crucial for residents and visitors to take necessary precautions to guard against harmful UV rays. As summer winds down, September stands as a reminder that sun safety remains paramount year-round. For more detailed information on UV levels throughout the year, visit Bonifacio UV Index.

Maximum UV Index Levels in Bonifacio for September

The chart shows the monthly maximum UV Index (UVI) for Bonifacio in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Bonifacio typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131416161413131415141211
Data source: Bonifacio September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Bonifacio

In September, Bonifacio basks in a delightful 267 hours of sunshine, gracefully transitioning from the vibrant summer months. While this marks a slight dip from August's 281 hours, the consistency of sunny days throughout the year is evident, as September still boasts substantial sunlight compared to earlier months. The trend showcases a gradual tapering off as the year progresses, yet September remains a splendid time to enjoy the beautiful outdoors. With the warm weather lingering, visitors can indulge in both fun-filled adventures and serene moments under the sun, making Bonifacio a perfect escape as summer gives way to the preparations of the festive season ahead.

Monthly Sunshine Duration in Bonifacio: September Highlighted

The September sunshine duration represents the total number of hours Bonifacio experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec223h268h301h298h297h275h280h281h267h264h268h278h
Data source: Bonifacio September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bonifacio During September

In Bonifacio, Philippines, September marks a notable dip in the chances of sunny weather, with only 10% likelihood of clear skies. This decrease continues a downward trend observed from the peak sunshine months of March at 26% and February at 20%. Following this vibrant period, the rainy season settles in, leading to diminished sunshine opportunities as August wraps up with a 12% chance. The pattern suggests that as summer transitions to autumn, residents and visitors alike should be prepared for the possibility of clouds overshadowing the sun, making September one of the less favorable months for those seeking sunny days.

Percentage of Sunny Days in September in Bonifacio

The chart illustrates the percentage of sunny days in Bonifacio throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Bonifacio experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%20%26%15%14%14%13%12%10%12%13%15%
Data source: Bonifacio September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bonifacio in September

In September, Bonifacio, Philippines enjoys a consistent 12 hours of daylight, mirroring a trend that starts in March and continues through to August. This period of extended daylight creates an inviting atmosphere for outdoor activities and exploration, ideal for soaking up the vibrant local culture. As the year transitions into October, daylight begins to wane, with a shift back to 11 hours. This rhythm of light reflects the region's tropical climate, where day length remains fairly stable throughout most of the year, enhancing the lively pace of life in Bonifacio.

Average Daylight Hours in Bonifacio for September

The chart illustrates the variation in daylight duration in Bonifacio throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 42m11h 51m12h 4m12h 17m12h 28m12h 33m12h 31m12h 21m12h 8m11h 55m11h 44m11h 39m
Data source: Bonifacio daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bonifacio

As summer fades into autumn, September in Bonifacio offers a gentle reprieve with average wind speeds holding steady at 1.2 m/s (3 mph). This mild breeze, similar to August, signals a transition within the months, characterized by a gradual fluctuation in wind patterns. Notably, after a peak in December at 2.2 m/s (5 mph), the winds generally ease from early spring until the year's close, creating a tranquil atmosphere ideal for outdoor activities. The consistent yet soft winds through early fall evoke a calming sense, blending perfectly with the vibrant coastal scenery, inviting both locals and visitors to soak in the serene surroundings.

Average September Wind Speed in Bonifacio

The chart displays monthly wind speed patterns in Bonifacio, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.91.51.41.11.11.71.21.2 m/s1.31.12.2
Data source: Bonifacio September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bonifacio Compares to Other Months

Weather in Bonifacio varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bonifacio, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather of September and January, both months maintain a warm average temperature, with September ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), while January exhibits a slightly higher maximum of 36°C (97°F). September experiences significantly more precipitation at 402 mm (15.8 in) over 27 days, compared to January's 131 mm (5.2 in) across 15 days. Additionally, the humidity remains relatively high in both months, with September at 87% and January at 85%. For more detailed information about January weather, you can visit Bonifacio weather in January.

September weather features a warm climate with average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), coupled with high humidity levels at 87%. The month is characterized by heavy rainfall, with a total precipitation of 402 mm (15.8 in) over 27 days. In contrast, February offers a slightly cooler atmosphere, with minimum temperatures of 20°C (68°F) and maximum temperatures reaching 36°C (96°F). This month experiences much less rainfall, totaling only 78 mm (3.1 in) over just 9 days, and slightly lower humidity at 84%. For more detailed weather insights in February, check out Bonifacio weather in February.

In comparing the weather of September and March, we see notable differences in temperature and precipitation. September tends to be warmer on average, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F). This month also experiences a significant amount of rain, with precipitation reaching 402 mm (15.8 in) over 27 days, contributing to a high humidity level of 87%.

In contrast, March shows slightly cooler temperatures, with a range from a minimum of 21°C (71°F) to a maximum of 37°C (99°F). While the average temperature is comparable at 28°C (83°F), the month sees much less rainfall, totaling 77 mm (3.0 in) over just 11 days, and humidity is lower at 82%. Overall, September is more humid and wetter while March offers hotter, drier conditions. For more detailed information, you can check Bonifacio weather in March.

When comparing the weather in September and April, notable differences emerge. September typically experiences average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), with high humidity at 87% and significant rainfall, averaging 402 mm (15.8 in) over 27 days. In contrast, April sees higher maximum temperatures, reaching up to 38°C (101°F), while the average is around 29°C (84°F) and humidity is lower at 79%. Additionally, April has much less precipitation, totaling only 94 mm (3.7 in) across 13 days. For more specific details, you can check out Bonifacio weather in April.

When comparing the weather in September and May, both months exhibit relatively warm temperatures, though September tends to be slightly cooler on average. In September, the minimum temperature is around 22°C (72°F), with a maximum reaching 34°C (93°F), while May has a minimum of 23°C (73°F) and can peak at 35°C (96°F). Additionally, September experiences significantly higher precipitation, with 402 mm (15.8 in) over 27 days, compared to May's 253 mm (10.0 in) across 28 days. Humidity levels are also higher in September at 87%, compared to 81% in May. For more detailed insights, you can check Bonifacio weather in May.

When comparing the weather in September and June, we see that both months feature similar average temperatures, with September ranging from a minimum of 22°C (72°F) to a maximum of 34°C (93°F), and June showing slightly warmer minimum temperatures starting at 23°C (74°F). However, September experiences significantly higher precipitation, with 402 mm (15.8 in) of rain over 27 days, compared to June's 239 mm (9.4 in) over 28 days. Additionally, September has a higher humidity level of 87%, while June maintains a slightly lower humidity at 84%. For more specific details, you can check out Bonifacio weather in June.

When comparing the weather in September and July, both months feature similar average temperatures, hovering around 27°C (80°F). However, September experiences slightly higher minimum temperatures of 22°C (72°F) compared to July's 23°C (73°F). In terms of maximum temperatures, September reaches up to 34°C (93°F), whereas July peaks at a slightly lower 33°C (92°F). Precipitation levels are notably higher in September, with 402 mm (15.8 in) recorded over 27 rainy days, while July sees 320 mm (12.6 in) across 30 days. Additionally, September has a higher humidity level at 87%, compared to July's 83%. For more detailed information, you can check Bonifacio weather in July.

In comparing the weather between August and September, we observe that both months feature similar average temperatures, with September having a slightly lower minimum temperature. August sees a minimum of 23°C (73°F) compared to September's 22°C (72°F), while both months peak at a maximum of 34°C (93°F). However, September experiences significantly more rainfall, accumulating 402 mm (15.8 in) over 27 days, compared to August's 260 mm (10.2 in) across 28 days. The humidity also rises slightly in September to 87%, as opposed to August's 84%. For more detailed insights on August weather, you can visit Bonifacio weather in August.

September and October exhibit similar temperature ranges, with both months experiencing a minimum of around 22-23°C (72-73°F) and a maximum of 34°C (93°F). However, October sees a slight decrease in average precipitation, dropping from 402 mm (15.8 in) in September to 334 mm (13.1 in), despite having a similar number of rainy days (29 days in October compared to 27 in September). Additionally, humidity is slightly lower in October at 82%, compared to September's 87%. For more detailed insights on the weather, you can check Bonifacio weather in October.

In comparing the weather of September and November, both months display similar temperature ranges with minimums around 22°C (72°F), averages of 27°C (80-81°F), and maximums reaching 34°C (93°F). However, September experiences significantly higher precipitation, with 402 mm (15.8 in) over 27 days, compared to November's 178 mm (7.0 in) across 23 days. This reduction in rainfall during November is coupled with slightly lower humidity levels at 83%, compared to September's 87%. For more detailed insights on the weather in November, you can check Bonifacio weather in November.

When comparing the weather in September and December, both months show relatively warm temperatures. September typically features a minimum temperature of 22°C (72°F), an average of 27°C (80°F), and a maximum of 34°C (93°F). The month is characterized by significant rainfall, receiving 402 mm (15.8 in) over 27 days, coupled with high humidity at 87%. In contrast, December experiences slightly lower temperatures, with a minimum of 21°C (70°F), an average of 27°C (81°F), and a maximum of 33°C (92°F). Rainfall decreases noticeably to 158 mm (6.2 in) over 20 days, and humidity remains relatively constant at 86%. For a more detailed look at the weather patterns, you can check out Bonifacio weather in December.

Compare Bonifacio's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bonifacio

As September rolls in, Bonifacio experiences a notable shift in weather patterns compared to the drier months. This transitional period is marked by increased humidity and frequent rainfall, with nearly every day witnessing some precipitation. The average temperature remains pleasant, hovering around a comfortable 27°C, but with peaks reaching up to 34°C on warmer days. These conditions foster a lush, vibrant environment but also invite a sense of transition, making it a unique time of year. For more detailed insights into what to expect throughout September and the rest of the year, visit Bonifacio Climate.