Last updated: August 27, 2025
September in Calamba, Philippines is marked by warm temperatures and high humidity, creating a vibrant yet steamy atmosphere. With maximums reaching 31°C (87°F) and an average temperature of 27°C (81°F), the weather offers a tropical embrace, ideal for those who thrive in warmth. However, the month is characterized by significant rainfall, accumulating 226 mm (8.9 in) across 24 rainy days, making it one of the wetter months of the year. Humidity soars to 89%, contributing to a lush landscape while encouraging visitors to stay prepared for sudden showers. Whether you’re exploring local attractions or indulging in the rich culture, September presents an immersive experience in Calamba’s tropical setting.
In September, Calamba, Philippines, continues to bask in warm tropical temperatures, showcasing a delightful balance of heat and comfort that is characteristic of this time of year. The month opens with minimum temperatures around 24°C (76°F), gradually rising to a maximum of 31°C (87°F), maintaining the consistency seen in the preceding months of August and July. With an average temperature holding steady at 27°C (81°F), September reflects a slight dip in evening coolness compared to the peak summer months, yet remains reliable for outdoor adventures. This month marks a transition towards a more moderate climate as the rainy season approaches, offering a perfect blend of sunny days and refreshing nights for residents and visitors alike.
September in Calamba, Philippines, continues the city's notable trend of significant rainfall, recording 226 mm (8.9 in) of precipitation over the month and making it one of the wetter periods of the year. This marks a slight increase compared to August's 167 mm and reflects a consistent pattern of rising precipitation from May through October. With 24 days of rain, September maintains a steady presence of moisture, comparable to previous months, hinting at the region's shift into the wetter season. The increased rainfall not only contributes to lush landscapes but also sets the stage for the heavier deluges expected in October and November. This climatic rhythm underscores Calamba's characteristic tropical climate, marked by a distinct interplay of wet and dry periods.
September in Calamba, Philippines, marks a notable peak in humidity, reaching 89%, as the region transitions from the wet season to the latter part of the year. This slight uptick follows the humid embrace of the previous months, which hover between 86% and 87%. Interestingly, while the humidity gradually decreases in October to 85%, the trend shows that high humidity is a consistent characteristic of Calamba, particularly during the height of the rainy season. As the year progresses, humidity levels tend to climb from a low of 82% in April to a cozy 91% during December, painting a picture of an ever-moist environment that defines life in this vibrant locale.
In September, Calamba, Philippines experiences a notable UV Index of 15, categorized as extreme, which signifies a consistent threat to skin health. This month marks a slight drop from the peak earlier in the year, with values like 16 in both March and April serving as reminders of the intense sunlight prevalent during the dry season. Despite the decreased intensity, the burn time remains critically short at just 10 minutes, urging residents and visitors alike to adopt protective measures against sun exposure. As the rainy season approaches, the UV Index still warrants attention for outdoor activities. For more insights on UV levels in Calamba, visit Calamba UV Index.
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September in Calamba, Philippines, continues the region's trend of abundant sunshine, offering residents and visitors 268 hours of glorious daylight. While this marks a slight decline from the summer peak in March, which boasts 299 hours, it remains consistent with the sunny days typical of the latter months of the year. Following a vibrant August with 282 hours, September's luminosity provides a delightful transition into October, where the hours drop to 260. This steady availability of sunlight throughout the month reflects Calamba's tropical climate, encouraging outdoor activities and a vibrant atmosphere as the rainy season edges closer. The overall pattern reveals a stable shift from the peak summer months towards a slightly milder photoperiod, enhancing the charm of the region as it embraces the approaching holiday season.
As September rolls into Calamba, Philippines, the sun takes a noticeable step back, with only a 9% chance of sunny weather. This marks one of the year's lowest probabilities, reflecting a trend towards cloudier days following the peak sunshine of earlier months. In contrast to the sunny highs of January through March, where the chances hover between 12% and 26%, September signals the onset of the rainy season, making outdoor plans a gamble. With consecutive months of reduced sunlight leading into the later part of the year, visitors and locals alike should prepare for the likelihood of overcast skies as the wet season approaches.
In Calamba, Philippines, the month of September embraces a steady pattern of 12 hours of daylight, continuing the trend established since March. This consistent daylight duration marks the peak of the year, reflecting a harmonious balance as the region transitions from the sweltering summer months into the cooler days of the approaching dry season. From January to February, daylight lingers at 11 hours, while a gradual increase unfolds from March to August, culminating in this delightful stability of light in September. As the year progresses, the daylight begins to wane once again in October, with a return to shorter hours. This shift beautifully encapsulates the tropical rhythm of Calamba, where the length of the day enriches the vibrant culture and outdoor lifestyles enjoyed by its residents.
In Calamba, the winds of September bring a gentle breeze, averaging 2.0 m/s (5 mph), slightly revitalizing the stillness that precedes the busyness of the end-of-year festivities. As the months roll on, a noticeable trend emerges: wind speeds tend to peak in January and December, where they reach an invigorating 3.7 m/s (8 mph) and 4.3 m/s (10 mph), respectively. In contrast, the summer months of April through August experience a lull, with the lightest winds recorded in June at just 1.7 m/s (4 mph). This seasonal shift paints a picture of Calamba's unique weather dynamics, where September finds itself nestled comfortably between the summer calm and the invigorating breezes of the year's end.
Weather in Calamba varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Calamba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between September and January, both months exhibit similar warm temperatures, with September experiencing a slightly higher average of 27°C (81°F) compared to January’s average of 26°C (79°F). While September has a minimum temperature of 24°C (76°F) and a maximum of 31°C (87°F), January shows a minimal drop with a minimum of 23°C (74°F) and a maximum of 29°C (84°F). Precipitation levels are markedly higher in January, reaching 258 mm (10.1 in) over the same 24 days as September, which sees 226 mm (8.9 in). The humidity remains consistently high in both months, with September at 89% and January slightly lower at 88%. For more detailed information, you can visit Calamba weather in January.
In comparing the weather between September and February, we see that September tends to be slightly warmer with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (87°F), while February presents a cooler climate with temperatures averaging between 23°C (74°F) and 28°C (83°F). Both months experience a high level of humidity, with September at 89% and February slightly lower at 86%. Precipitation levels are comparable, with September receiving 226 mm (8.9 in) over 24 days and February having a bit less at 202 mm (7.9 in) over the same number of days. For a detailed look at February weather specifics, you can check Calamba weather in February.
When comparing the weather in September and March, both months exhibit warm temperatures, with September having slightly higher averages. September's minimum temperature is around 24°C (76°F), while March shares the same minimum but has a marginally lower average of 26°C (79°F), peaking at 29°C (84°F). In terms of precipitation, September is noticeably wetter, receiving 226 mm (8.9 in) over 24 days compared to March's 149 mm (5.9 in) over 23 days. Additionally, humidity levels are higher in September at 89%, while March maintains a lower humidity of 84%. For more details on the weather specifics in March, check out Calamba weather in March.
In comparing the weather of September and April, both months exhibit similar overall temperature patterns, with average temperatures hovering around 27°C (81°F). However, September tends to be hotter at the upper range, reaching up to 31°C (87°F), while April's maximum is slightly lower at 29°C (85°F). Additionally, September is characterized by significantly higher precipitation, totaling 226 mm (8.9 in) across 24 days, compared to April's 92 mm (3.6 in) over 20 days. Humidity levels are also higher in September at 89%, compared to 82% in April, contributing to a more oppressive feel during the former month. For more detailed insights on weather specifics, you can check Calamba weather in April.
In comparing the weather between September and May, we see that both months share similar average temperatures, with September slightly cooler, averaging 27°C (81°F) compared to May's stable 27°C (81°F). However, September features a higher minimum temperature of 24°C (76°F) and a maximum of 31°C (87°F), while May begins at 25°C (77°F) and peaks at 30°C (87°F). Precipitation levels are comparable, with September receiving 226 mm (8.9 in) over 24 days, slightly more than May's 221 mm (8.7 in) across 25 days. Additionally, September has higher humidity at 89% compared to May's 83%, making it feel more sticky. For more detailed information, check out Calamba weather in May.
When comparing the weather in September and June, both months feature similar temperature averages, with September recording a minimum of 24°C (76°F) and an average of 27°C (81°F), while June is slightly warmer with a minimum of 25°C (77°F) and the same average temperature. However, September experiences higher precipitation, totaling 226 mm (8.9 in) over 24 days, compared to June's 210 mm (8.3 in) falling over 27 days. Humidity levels are also slightly higher in September at 89%, while June maintains a humidity of 85%. For more detailed insights on the climate, Calamba weather in June provides extensive information.
In comparing the weather of September and July, both months exhibit similar average temperatures, with September recording a minimum of 24°C (76°F) and maximum of 31°C (87°F), while July has a slightly higher minimum of 25°C (76°F) and the same maximum. The average temperatures are consistent at 27°C (81°F) for both months. However, September sees a higher level of precipitation, totaling 226 mm (8.9 in) over 24 days, compared to July's 210 mm (8.3 in) over the same number of days. Humidity levels are also slightly higher in September at 89%, versus 86% in July. For more detailed information, you can check Calamba weather in July.
Comparing the weather in September and August reveals some interesting trends. Both months have a similar average temperature of 27°C (81°F), but September experiences slightly cooler minimum temperatures at 24°C (76°F) compared to August's 25°C (77°F). In terms of humidity, September is marginally more humid at 89% versus August's 87%. Interestingly, September also sees increased rainfall, with 226 mm (8.9 in) of precipitation over 24 days, compared to August’s 167 mm (6.6 in) over 22 days. For more details, you can check Calamba weather in August.
In September, the weather typically features a temperature range with a minimum of 24°C (76°F), an average of 27°C (81°F), and a maximum of 31°C (87°F). During this month, the area experiences significant rainfall, totaling 226 mm (8.9 in) over the course of 24 days, along with high humidity levels at 89%. In contrast, October maintains a similar temperature profile, with minimums at 24°C (76°F), averages of 27°C (81°F), and maximums dropping slightly to 30°C (87°F). However, October sees an increase in precipitation to 242 mm (9.5 in) spread over 28 days, accompanied by slightly lower humidity at 85%. For more detailed information, you can check Calamba weather in October.
In September, the weather features a minimum temperature of 24°C (76°F) and averages around 27°C (81°F), with maximums reaching 31°C (87°F). This month experiences significant rainfall with a total precipitation of 226 mm (8.9 in) over 24 days, and humidity remains high at 89%. In contrast, November maintains similar warmth with a minimum of 24°C (75°F) and an average of 27°C (80°F), but slightly cooler maximum temperatures of 30°C (87°F). November also sees increased rainfall, totaling 237 mm (9.3 in) over 28 days, while humidity levels drop slightly to 87%. For more detailed information, you can check Calamba weather in November.
In September, the weather in Calamba features warm temperatures with a minimum of 24°C (76°F), an average of 27°C (81°F), and a maximum reaching 31°C (87°F). This month experiences significant rainfall, with 226 mm (8.9 in) spread over 24 days, coupled with high humidity at 89%. In contrast, December sees slightly cooler temperatures, with a minimum of 24°C (76°F), an average of 26°C (80°F), and a maximum of 30°C (85°F). However, December also brings an increase in precipitation, totaling 279 mm (11.0 in) over 29 days, and a rise in humidity to 91%. For more detailed information, you can check Calamba weather in December.
September in Calamba brings a notable shift in weather patterns, characterized by higher humidity levels and frequent rains that distinguish it from other months. The warmth continues with pleasant daily temperatures; however, the substantial precipitation—averaging nearly 226 mm—means that rain gear becomes essential for outdoor activities. This month often feels more humid, contributing to a lush environment, making it a unique transition as the region moves toward the cooler months ahead. For a deeper dive into weather patterns in Calamba, check out Calamba Climate.