Last updated: August 27, 2025
In September, the weather in Santa Rosa, Philippines showcases a tropical climate characterized by high humidity and significant rainfall. Daily temperatures range from a minimum of 21°C (71°F) at night to a sweltering maximum of 34°C (94°F) during the day, making the average temperature around 27°C (81°F). This month also witnesses substantial precipitation, totaling 333 mm (13.1 in) over approximately 27 rainy days, creating a lush and vibrant landscape. With humidity levels at 89%, residents and visitors alike can expect a warm and moist atmosphere, typical of the region's wet season.
In September, Santa Rosa, Philippines experiences a gentle transition into the cooler months, with temperatures showcasing a comfortable range. The minimum temperature settles at a mild 21°C (71°F), providing a cozy atmosphere, while the average hangs around 27°C (81°F), maintaining a pleasant warmth. As the month progresses, the maximum temperature peaks at 34°C (94°F), reflecting a slight decline from the summer heat yet still offering sunny days perfect for outdoor activities. This month stands out as a balanced period where the sweltering summer gradually gives way to more temperate conditions, making September an ideal time to explore the vibrant landscapes of Santa Rosa.
September in Santa Rosa, Philippines, marks a significant continuation of the wet season, with precipitation reaching 333 mm (13.1 in) over 27 days of rain. This torrential downpour follows the peak months of July and August, where rainfall reached 440 mm (17.3 in) and 415 mm (16.3 in) respectively. The transition into September showcases a slight decline in precipitation volume compared to the previous months, yet still provides ample moisture crucial for the region's lush landscapes. As the month progresses, the total rainfall gradually decreases, hinting at the nearing end of the rainy season. This pattern signifies not only the climatic characteristics of the area but also the diverse environmental dynamics at play as Santa Rosa gears up for the drier months ahead.
In September, humidity in Santa Rosa, Philippines reaches a robust 89%, continuing a trend of elevated moisture levels that begins in the warmer months. Following a gradual rise from 68% in March, the humidity spikes significantly during the summer, peaking between July and August. This pattern suggests a lush and tropical environment, with September maintaining that high humidity alongside October and November. As the year progresses, humidity slightly decreases but remains consistent at elevated levels, hinting at Santa Rosa's rich, verdant landscape throughout the rainy season.
As September unfolds in Santa Rosa, Philippines, residents should be prepared for a continuation of the extreme UV Index, which stands at a notable 14—the same level recorded in the previous month. This trend reflects a consistent pattern seen throughout the year, where the UV index rarely dips below 11, urging caution for outdoor activities. With a burn time of just 10 minutes, protective measures are essential to enjoy the sun safely. From January through September, the region experiences high UV levels, making sun protection a priority for the health-conscious. For more detailed insights on UV exposure, visit Santa Rosa UV Index.
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September in Santa Rosa, Philippines, brings a gentle dip in sunshine, providing 254 hours of bright days. This month reflects a gradual decline from the summer peak in March, which basks in an impressive 309 hours of sunlight. Following the mid-year high of 307 hours in May, the sunshine slightly wanes but still offers a warm atmosphere, setting the stage for the cooler months ahead. Interestingly, September's embrace of the sun is consistent with the overall trend of diminishing daylight as the year transitions into the latter months; yet, it remains a vibrant time for outdoor enjoyment. As autumn approaches, locals and visitors alike can savor the lingering warmth while preparing for the golden hues of October and beyond.
In September, the chance of sunny weather in Santa Rosa, Philippines, tends to be modestly low at 24%, following the peak of the rainy season. This month sees a notable decline in sunshine compared to the brighter days of May, which boasts a significant 58% chance. The trend further illustrates that as the year progresses, particularly from the summer months of June through August, the likelihood of clear skies diminishes, reaching a low of just 8% in August. However, September shows slight improvement as the region transitions, though it remains overshadowed by the wetter months to follow. While September may not deliver the sunniest days, it hints at the gradual shift back to more favorable weather as the year winds down.
In September, Santa Rosa, Philippines, enjoys a balanced daylight duration of 12 hours, continuing the trend observed throughout the mid-year months. The daylight gradually increased from 11 hours in the early months of the year, peaking at 13 hours in June, before returning to a stable 12 hours from July through September. This period signals a consistent rhythm, allowing residents and visitors alike to bask in ample sunlight before the days shorten again in the upcoming months of October and November. With its rich tapestry of daylight, September invites memorable moments under the sun, making it an ideal time for outdoor pursuits.
In September, the gentle gusts of wind in Santa Rosa, Philippines, slow to an average of 1.4 m/s (3 mph), marking a notable dip compared to the bustling breezes of earlier months. This decrease highlights a broader trend as the summer winds begin to wane; April through August consistently displayed average speeds between 1.6 to 2.3 m/s (4 to 5 mph), creating a vibrant atmosphere ideal for outdoor activities. As the city transitions into October, winds slightly pick up again, hinting at a seasonal cycle where September serves as a tranquil lull. Embracing this calmer period allows residents and visitors alike to appreciate the serene landscapes and warm ambiance that characterize Santa Rosa’s September windscape.
Weather in Santa Rosa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Rosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January offer distinct weather patterns, with September being notably warmer and more humid. In September, temperatures range from a minimum of 21°C (71°F) to a maximum of 34°C (94°F), accompanied by high humidity at 89% and substantial precipitation of 333 mm (13.1 in) over 27 days. In contrast, January experiences milder temperatures, with a minimum of 18°C (64°F) and a maximum of 33°C (91°F), along with lower humidity at 76% and significantly reduced rainfall of 78 mm (3.1 in) over just 6 days. For more detailed information, you can check Santa Rosa weather in January.
September and February exhibit contrasting weather patterns. In September, temperatures range from a minimum of 21°C (71°F) to a maximum of 34°C (94°F), with an average of 27°C (81°F). The month is characterized by significant rainfall, totaling 333 mm (13.1 in) over 27 days and a high humidity level of 89%. In stark contrast, February features milder temperatures with a minimum of 17°C (63°F) and a maximum of 33°C (92°F), averaging 26°C (78°F). Additionally, February experiences considerably less precipitation, with only 43 mm (1.7 in) occurring over just 3 days and a lower humidity of 71%. For a more detailed look at the February weather conditions, you can visit Santa Rosa weather in February.
When comparing the weather in September and March, notable differences emerged. September tends to be warmer and much wetter, with average temperatures around 27°C (81°F) but reaching highs of 34°C (94°F). It experiences significant precipitation, totaling 333 mm (13.1 in) over 27 days, paired with high humidity levels of 89%. In contrast, March offers a more moderate climate with similar average temperatures of 27°C (81°F) but slightly cooler minimums at 18°C (65°F) and maximums peaking at 35°C (95°F). The month sees significantly less rainfall, only 29 mm (1.1 in) over just 5 days, and lower humidity at 68%. For more details, you can visit Santa Rosa weather in March.
In September, the weather tends to be quite humid and rainy, with average temperatures ranging from a minimum of 21°C (71°F) to a maximum of 34°C (94°F). This month experiences significant precipitation, totaling around 333 mm (13.1 inches) over about 27 days, leading to a humidity level of 89%. In contrast, April is generally drier and warmer, featuring temperatures that range from a minimum of 21°C (70°F) to a sweltering maximum of 37°C (99°F). With only 29 mm (1.1 inches) of rain across 7 days, the humidity decreases to a more comfortable 69%. For more details on the weather in this month, check out Santa Rosa weather in April.
When comparing the weather in September and May, it's clear that both months exhibit high temperatures, but May tends to be hotter overall. In September, temperatures range from a minimum of 21°C (71°F) to a maximum of 34°C (94°F), with an average of 27°C (81°F). In contrast, May shows higher figures, with a minimum of 23°C (73°F) and a maximum reaching up to 39°C (102°F), averaging 29°C (85°F). Additionally, September is characterized by significantly higher precipitation, totaling 333 mm (13.1 in) over 27 days, while May has only 168 mm (6.6 in) over 18 days. The humidity also contrasts, as September is notably more humid at 89%, compared to May's 76%. For a more detailed look into the weather specifics for May, you can check Santa Rosa weather in May.
In comparing the weather of September and June, both months experience warm temperatures, but June tends to be slightly hotter with an average of 28°C (83°F) compared to September's 27°C (81°F). The maximum temperatures in June can reach as high as 38°C (101°F), significantly higher than September's peak of 34°C (94°F). Additionally, September sees more rainfall with 333 mm (13.1 in) of precipitation over 27 days, while June records 299 mm (11.8 in) over 26 days. Humidity levels are relatively similar, with September at 89% and June slightly lower at 87%. For more detailed information, you can check Santa Rosa weather in June.
When comparing the weather in September and July, we see some notable similarities and differences. Both months have an average temperature of 27°C (81°F), but July tends to be slightly warmer, with a maximum of 35°C (95°F) compared to September's 34°C (94°F). Precipitation levels are significantly higher in July, with 440 mm (17.3 in) over 30 days, while September sees 333 mm (13.1 in) over 27 days. Additionally, humidity levels are very similar, with September at 89% and July at 88%. For more details on July weather, check out Santa Rosa weather in July.
In comparing the weather between September and August, we see some notable differences despite similar average temperatures. September experiences a slight decrease in minimum temperature, dropping to 21°C (71°F) compared to August's 23°C (73°F), while both months share the same average and maximum temperatures of 27°C (81°F) and 34°C (94°F) respectively. Precipitation levels in September are lower, with 333 mm (13.1 in) recorded over 27 days, compared to August's 415 mm (16.3 in) spread over 30 days. Humidity remains constant at 89% for both months, contributing to the overall tropical feel. For more specific details about August's weather, refer to the link: Santa Rosa weather in August.
September and October share similar average temperatures, with both months maintaining an average of 27°C (81°F) and maximums reaching 34°C (94°F). However, September typically experiences slightly warmer minimum temperatures, averaging 21°C (71°F), compared to October's 19°C (67°F). Notably, September has higher precipitation levels, with 333 mm (13.1 in) recorded over 27 days, whereas October sees a decrease to 273 mm (10.8 in) across 20 days. Additionally, humidity levels are marginally lower in October at 86%, compared to September's 89%. For more detailed information, check Santa Rosa weather in October.
In September, the weather is characterized by higher precipitation levels, totaling 333 mm (13.1 in) over 27 days, while temperatures vary from a minimum of 21°C (71°F) to a maximum of 34°C (94°F). In contrast, November experiences significantly less rainfall, with only 125 mm (4.9 in) across 13 days, but maintains a similar temperature range, with a minimum of 20°C (69°F) and a maximum of 34°C (93°F). Humidity levels remain consistent at 89% for both months, creating a tropical atmosphere. For more specifics on the weather during this time, you can visit Santa Rosa weather in November.
In comparing the weather between September and December, September tends to be slightly warmer, with average temperatures reaching up to 27°C (81°F) compared to December's average of 26°C (79°F). However, both months experience similar minimum temperatures, with September at 21°C (71°F) and December slightly cooler at 20°C (68°F). One significant difference is in precipitation; September receives considerable rainfall at 333 mm (13.1 in) over 27 days, while December is much drier with only 125 mm (4.9 in) across 10 days. Additionally, humidity levels are quite similar, with September at 89% and December at 86%. For more detailed insights about December weather specifically, you can visit Santa Rosa weather in December.
September in Santa Rosa offers a distinct contrast to the rest of the year, marked by a higher frequency of rainfall and increased humidity. With nearly 90% humidity and frequent downpours, the atmosphere is more saturated, creating a unique kind of warmth. While temperatures peak around 34°C, the significant moisture often makes it feel more muggy and oppressive compared to the dry heat of summer months. This combination of warmth and wetness fosters a lush landscape, truly bringing the beauty of the region to life. For a deeper dive into the unique characteristics of this vibrant season, explore more at Santa Rosa Climate.