Last updated: August 27, 2025
September in Subic, Philippines is characterized by warm temperatures and a high level of humidity, creating a tropical atmosphere. The maximum temperature reaches a balmy 32°C (90°F), while the average temperature rests around 27°C (80°F), providing a comfortable climate for outdoor activities. Evenings can be cooler, with a minimum temperature of 23°C (73°F). However, this month also brings significant precipitation, averaging 400 mm (15.8 in) over 28 days, leading to frequent rain showers that nurture the lush landscape. With humidity levels soaring to 89%, visitors should prepare for a lively yet damp experience, embracing the rich natural beauty that September in Subic has to offer.
In September, Subic, Philippines experiences a transition as temperatures begin to cool slightly, yet the warmth remains inviting. The month boasts a minimum of 23°C (73°F) and peaks at 32°C (90°F), maintaining an average of around 27°C (80°F). While September continues the trend of the humid summer months, the daily temperatures indicate a subtle shift toward the milder conditions of autumn. This gradual easing from the intense heat of the preceding months allows both locals and visitors to enjoy outdoor activities with a hint of relief from the summer swelter. As September gracefully unfolds, it sets the stage for the upcoming months, maintaining a delicate balance between warmth and comfort.
September in Subic, Philippines, marks a significant moment in the rainy season, as the region experiences 400 mm (15.8 in) of precipitation over approximately 28 days. This substantial rainfall continues the trend set in preceding months, particularly following the peak monsoons of July and August. While the overall precipitation slightly decreases from the previous months, September maintains a high frequency of rainy days, indicative of the lingering wet weather typical for this time of year. The consistent rainfall not only showcases Subic's tropical climate but also sets the stage for a transition into a drier October, with expectations of around 246 mm (9.7 in) of rain.
In September, Subic, Philippines experiences a notable rise in humidity, peaking at 89%, which mirrors the increasingly damp conditions seen in the preceding months of July and August. This trend toward higher humidity levels, especially during the latter half of the year, creates a consistently muggy atmosphere, a stark contrast to the drier beginnings of the year when humidity levels were around 68% to 76%. As the summer transitions into the rainy season, residents and visitors alike feel the steamy embrace of the tropical climate, signaling a shift in weather patterns that dominate the region from mid-year onwards.
In September, the UV Index in Subic, Philippines remains high at 14, categorized as extreme, meaning that unprotected skin could burn in just 10 minutes. This marks a consistency in UV intensity observed since March, where values have maintained a notably high level. As the year progresses toward October, the UV Index is expected to slightly decrease to 13, yet still falls within the extreme exposure category. Visitors and residents alike should take necessary precautions, such as wearing sunscreen and protective clothing, to mitigate the risks associated with such elevated UV levels. For more detailed information, check out the full Subic UV Index guide.
UV Risk Categories
September in Subic, Philippines, brings a delightful shift in sunshine, clocking in at 243 hours of bright skies. This month marks a pleasant comeback from the slightly lower totals seen in August, which recorded only 226 hours. Notably, September continues a gradual decline from the summer peak of 311 hours in March, yet it remains comfortably above the totals of the preceding months. As the rainy season wanes, the sun shines more consistently, offering ample opportunity for outdoor adventures and picturesque views. This blend of sunshine makes September an inviting time to experience the beauty and warmth of Subic, as it transitions towards the end of the year, where daylight hours begin to stabilize again.
In Subic, Philippines, September is marked by relatively low odds of sunshine, with only an 18% probability of clear skies. This reflects a broader trend as the region transitions from the dry months of April to May, where sunny days peak at 52%, into the wet season characterized by a significant drop in sunshine, reaching a low of just 8% in August. Following September, the likelihood of sun gradually recovers, climbing to 27% in October and 40% in November. Therefore, if you're planning a visit in September, be prepared for overcast days and occasional rain, typical of the tropical climate during this time of year.
In Subic, Philippines, September marks a continuation of the consistent daylight experienced from March through August, with the sun gracing the skies for a full 12 hours each day. This extended illumination serves as a perfect backdrop for both leisure and productivity, blending the vibrant hues of tropical flora with the rhythm of daily life. As the month transitions towards October, daylight begins to wane slightly, reverting to 11 hours by the time the year closes in on the cooler months. This rhythm of light underscores the tropical allure of Subic, where each month offers its unique charm under the sun's watchful gaze.
As the September wind sweeps through Subic, Philippines, it brings a gentle respite with an average speed of just 1.6 m/s (4 mph), marking the year's calmest period. Following a trend of fluctuating breezes, September sees a dip in wind activity compared to the lively gusts of July and the mild whispers of the preceding months. This notable decrease is emblematic of the gradual transition into the latter part of the year, where wind speeds typically rise again in October. Observing the data, one can appreciate the rhythmic ebb and flow of the winds, with December often heralding stronger gusts, peaking at 2.7 m/s (6 mph). In this serene September lull, locals and visitors alike can bask in the tranquil atmosphere, perfect for relaxing beach days and leisurely outdoor activities.
Weather in Subic varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Subic, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather patterns. In September, temperatures range from a minimum of 23°C (73°F) to a maximum of 32°C (90°F), with an average of 27°C (80°F). The month is quite rainy, with a substantial 400 mm (15.8 in) of precipitation spread over 28 days and high humidity at 89%. In contrast, January features slightly cooler temperatures, with a minimum of 19°C (66°F) and a maximum of 31°C (89°F), averaging 25°C (78°F). Precipitation drops significantly to only 49 mm (1.9 in), occurring over just 7 days, and the humidity is lower at 76%. For more details, check out Subic weather in January.
September and February present distinctly different weather patterns. September tends to be hotter with average temperatures around 27°C (80°F) and maximums reaching up to 32°C (90°F), whereas February is slightly cooler with averages at 25°C (78°F) and maximums of 33°C (92°F). One stark contrast is the precipitation; September experiences a substantial rainfall of 400 mm (15.8 in) over 28 days, contributing to a humidity level of 89%. In contrast, February has a much drier climate with only 39 mm (1.6 in) of rain over just 7 days and a lower humidity of 71%. For more details on February weather, you can check Subic weather in February.
September and March exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 23°C (73°F) to a maximum of 32°C (90°F), with an average of 27°C (80°F). This month is characterized by high humidity at 89% and significant rainfall, accumulating about 400 mm (15.8 in) over 28 days. In contrast, March experiences slightly lower temperatures, with a minimum of 21°C (70°F) and a higher maximum of 34°C (93°F), maintaining an average of 27°C (81°F). Rainfall is considerably less, at only 39 mm (1.5 in) over just 8 days, and humidity drops to 68%. For more detailed insights into the March climate, you can refer to Subic weather in March.
September and April present distinct weather patterns. In September, average temperatures hover around 27°C (80°F), with highs reaching up to 32°C (90°F), while it experiences significantly higher precipitation, totaling 400 mm (15.8 in) over 28 days and high humidity at 89%. In contrast, April exhibits warmer average temperatures at 28°C (82°F), peaking at 35°C (96°F), but with much less rainfall of only 53 mm (2.1 in) over 13 days and lower humidity at 69%. For more details on the specific weather conditions, you can check Subic weather in April.
When comparing the weather in September and May, September tends to be characterized by slightly lower temperatures, with an average of 27°C (80°F) compared to May's warmer average of 28°C (83°F). Additionally, September experiences higher humidity at 89%, while May has a more comfortable 76% humidity. Rainfall is notably heavier in September, accumulating to 400 mm (15.8 in) over 28 days, whereas May sees significantly less precipitation, totaling 167 mm (6.6 in) across 25 days. For more detailed insights on May weather, you can visit Subic weather in May.
In both September and June, temperatures remain quite similar, with a minimum of around 23°C (73°F) and an average of about 27°C (80°F). However, June tends to be slightly warmer, peaking at 34°C (93°F) compared to September’s maximum of 32°C (90°F). Precipitation levels are nearly identical, with September recording 400 mm (15.8 in) and June at 395 mm (15.6 in), both distributed over 28 days. Interestingly, September is slightly more humid at 89% versus June's 87%. For a closer look at June weather, you can check Subic weather in June.
In comparing the weather of September and July, both months experience similarly warm temperatures, with minimums around 23°C (73°F) and average highs of 27°C (80°F). However, July tends to be slightly hotter, peaking at 33°C (92°F) compared to September's 32°C (90°F). Precipitation is significantly higher in July, with 600 mm (23.6 in) spread over 30 days, while September sees 400 mm (15.8 in) over 28 days. Humidity levels remain fairly consistent, with September at 89% and July at 88%. For more details, you can check out Subic weather in July.
Comparing the weather in September and August reveals some interesting differences. While both months experience warm temperatures with a minimum of 23°C, September has a slightly lower average temperature of 27°C compared to August's 26°C. However, August tends to be hotter overall, with a maximum temperature of 33°C, compared to September's peak of 32°C. Precipitation is also notable; September has 400 mm of rainfall over 28 days, while August sees even more rain at 545 mm across 30 days. Both months share the same humidity level of 89%. For a more detailed look at the weather in August, you can visit Subic weather in August.
In September, the weather is typically warmer with average temperatures around 27°C (80°F) and maximum highs reaching 32°C (90°F). The month is characterized by high humidity at 89% and significant rainfall, accumulating around 400 mm (15.8 in) over 28 days. In contrast, October brings a slight drop in minimum temperature to 22°C (72°F) while the average remains similar at 27°C (81°F), although maximum highs can go up to 33°C (91°F). Precipitation also decreases significantly to 246 mm (9.7 in) over 24 days, and humidity lowers slightly to 86%. For more detailed information about the weather conditions in October, visit Subic weather in October.
September and November share similar average temperatures, both averaging 27°C (80°F), with maximums reaching around 32°C (90°F) in September and 32°C (91°F) in November. However, September is notably wetter, with a hefty 400 mm (15.8 in) of precipitation over 28 days, compared to November's much drier 154 mm (6.1 in) across just 15 days. Humidity levels remain consistent at 89% in both months, creating a similarly tropical feel. For a more detailed look at November weather, you can check Subic weather in November.
In September, the weather is characterized by higher humidity and significant rainfall, with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 32°C (90°F). The month sees an average temperature of 27°C (80°F) and experiences precipitation on 28 days, totaling around 400 mm (15.8 in). In contrast, December tends to be drier and slightly cooler, with temperatures varying from a minimum of 20°C (68°F) to a maximum of 32°C (90°F). The average temperature drops slightly to 26°C (79°F), and precipitation is significantly reduced to 88 mm (3.5 in) over just 12 days, accompanied by a similar humidity level of 86%. For a more detailed look at December weather, you can visit Subic weather in December.
In September, Subic experiences its wettest month, with nearly daily precipitation contributing to a high humidity level of 89%. Unlike the warmer and drier months preceding it, the weather in September is marked by a blend of substantial rainfall and average temperatures that hover around a comfortable 27°C (80°F). Despite the frequent showers, the combination of warm temperatures and lush landscapes creates a unique tropical atmosphere that characterizes this transitional season. For a deeper understanding of how September fits into the overall climate narrative of Subic, check out Subic Climate.