Last updated: August 27, 2025
In September, San Fernando, Philippines experiences a tropical climate characterized by high humidity at 90%, making the air feel quite warm and sticky. The average temperature hovers around 27°C (81°F), while daily highs can reach up to 32°C (89°F), providing plenty of heat. Rainfall is significant this month, with a remarkable precipitation total of 361 mm (14.2 in) spread across 28 rainy days. This combination of warmth and moisture creates a lush environment, although it also necessitates preparation for frequent showers, making September a month of vibrant greenery and dynamic weather conditions.
In September, temperatures in San Fernando, Philippines continue to reflect the warm and tropical climate typical of the region. The month sees a minimum temperature of 24°C (75°F), ensuring mild nights. Daytime warmth reaches an average of 27°C (81°F), peaking at a maximum of 32°C (89°F). This trend of elevated temperatures mirrors the preceding months of August and July, where temperatures remained consistently warm. As the rainy season begins to taper off, September offers a combination of warm days and comfortable evenings, making it an inviting time for both locals and visitors to enjoy outdoor activities amidst the lingering summer vibes.
September in San Fernando, Philippines, marks a transitional high point in rainfall patterns, with an impressive 361 mm (14.2 inches) of precipitation over 28 days. This uptick follows the wet months of July and August, which feature even heavier downpours, reflecting the region’s characteristic monsoon influence. As the rainy season peaks, the rainfall starts to gradually diminish, paving the way for October, which maintains a notable average with 353 mm (13.9 inches). Interestingly, September's precipitation serves as a precursor to the drier months ahead, yet it is still part of an overall trend of significant rainfall from June through October, making this period crucial for the region's agricultural landscape. The consistent precipitation emphasizes the importance of these months for replenishing water resources and supporting local ecosystems.
In September, the humidity in San Fernando, Philippines, peaks at a notable 90%, marking it as one of the most humid months of the year. This increase is part of a broader trend, as humidity levels consistently rise from March’s 77% to August’s 89%, culminating in September's sweltering embrace. Following September, humidity remains high, with November and December maintaining an equally sticky 90% and 91% respectively. This trend highlights a tropical climate where the humidity intensifies as the year progresses, creating a warm and muggy environment that characterizes the latter part of the rainy season.
In September, residents of San Fernando, Philippines continue to experience the intensity of the sun with a UV Index of 15, solidly within the extreme exposure category. This marks a slight increase from the previous months, maintaining a pattern of consistently high UV levels throughout the year. With a burn time of just 10 minutes, it's crucial for sunseekers to take precautions against harmful UV radiation. Overall, the UV Index tends to fluctuate between 12 and 16 across the months, with March and April being the peaks, while October begins a subtle downward trend. As summer transitions into fall, ensuring adequate sun protection remains essential. For more detailed information, visit San Fernando UV Index.
UV Risk Categories
September in San Fernando, Philippines, sees a delightful 265 hours of sunshine, a slight dip from the peak months of May and June, which boast 317 and 285 hours, respectively. This trend reflects the tail end of the summer season, transitioning into the cooler months. Although September experiences less sunlight than its summer predecessors, it continues to offer plenty of bright days for outdoor activities. Interestingly, the sunshine totals during this month still surpass those in the earlier months of the year, like January and February, which account for 227 and 271 hours of sun respectively. This gradual shift towards more moderate weather makes September an inviting time for both locals and tourists to enjoy the beautiful landscapes under a welcoming sun.
In September, the likelihood of sunny weather in San Fernando, Philippines, is notably low, with only an 8% chance of clear skies. This trend reflects a general decline in sunshine as the year progresses, particularly following the peak sunny months of March and April, which boast chances of 33% and 29% respectively. As we move into the second half of the year, the chances diminish further, reaching their nadir in September and October. This hints at a broader pattern where late summer and early autumn are characterized by increased cloud cover and potential rains, making the 8% chance a reminder to expect more overcast days than bright sunshine during this time.
In September, San Fernando enjoys a generous 12 hours of daylight, mirroring the extended daylight that characterizes the preceding months of March through August. This consistent duration hints at a tropical climate where daylight remains relatively stable throughout much of the year. As the sun sets on this month, the days begin to gradually shorten, leading into October, when daylight dips back to 11 hours. Overall, the September skies reflect a perfect balance, making it a splendid time for outdoor activities and enjoying the vibrant scenery.
As September unfolds in San Fernando, the winds take on a gentle rhythm, with an average speed of 2.6 m/s (6 mph), reflecting a continuing trend of calmness compared to the bustling winds of earlier months. Following the summer, where July peaked at 4.5 m/s (10 mph), the transition into September marks a notable decrease, maintaining the same tranquil pace as August. This lull sees the coastal town enjoying a respite from strong gusts, creating an ideal environment for leisurely afternoon strolls by the sea. However, as the year draws to a close, anticipation builds for the return of stronger breezes in October and November, which promise to invigorate the air once more. Overall, September captures a moment of calmness, inviting residents and visitors alike to savor the gentle embrace of the breeze.
Weather in San Fernando varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Fernando, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by a warm climate with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F). This month experiences substantial rainfall, with a total precipitation of 361 mm (14.2 in) over 28 days, resulting in high humidity levels of around 90%.
Conversely, January sees slightly cooler temperatures, with averages between 22°C (73°F) and 31°C (88°F). Although still humid, January's humidity is lower at 85%, and it has less precipitation, totaling 300 mm (11.8 in) over 23 days. Overall, January tends to be a bit drier and more moderate than the wetter and hotter September. For more detailed weather information, you can visit San Fernando weather in January.
In comparing the weather between September and February, September typically experiences warmer temperatures, with an average of 27°C (81°F) and maximums reaching up to 32°C (89°F). In contrast, February has slightly cooler temperatures, averaging 26°C (79°F) with maximums around 30°C (87°F). Precipitation levels also differ significantly; September sees higher rainfall at 361 mm (14.2 in) over 28 days, compared to February's 216 mm (8.5 in) over 21 days. Humidity levels are also elevated in September at 90%, while February enjoys a lower humidity of 80%. For more detailed information, you can check San Fernando weather in February.
When comparing the weather in September and March, we observe some notable differences. September experiences slightly warmer minimum temperatures at 24°C (75°F) compared to March's 22°C (73°F), while both months share an average high of 32°C (89°F). However, September is marked by significantly higher rainfall, with 361 mm (14.2 in) of precipitation over 28 days, versus only 164 mm (6.4 in) over 19 days in March. This contributes to a much higher humidity level of 90% in September, compared to 77% in March, making March a relatively drier and less humid month overall. For more details, you can check San Fernando weather in March.
When comparing the weather in September and April, several key differences emerge. September tends to be slightly warmer, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), but it also experiences significantly higher rainfall, accumulating about 361 mm (14.2 in) over 28 days with a high humidity level of 90%. In contrast, April offers a warmer average temperature of 28°C (82°F) and less rainfall, with only 109 mm (4.3 in) spread over 18 days and a humidity level of 78%. This results in a drier and more comfortable climate in April, making it a favorable time for outdoor activities. For more details on April weather specifics, check out San Fernando weather in April.
When comparing the weather between September and May, we can observe some notable differences. September features a slightly lower average temperature of 27°C (81°F), with a minimum of 24°C (75°F) and a maximum of 32°C (89°F). In contrast, May sees a higher average temperature of 28°C (83°F), with a minimum of 25°C (76°F) and a maximum of 33°C (92°F). Additionally, September experiences higher precipitation, measuring 361 mm (14.2 in) over 28 days, compared to May's 244 mm (9.6 in) across 30 days. Humidity levels are also higher in September at 90%, while May has a humidity level of 84%. For more details on May weather, visit San Fernando weather in May.
When comparing the weather in September to that in June, both months exhibit similar temperature ranges, with September registering a minimum of 24°C (75°F) and an average of 27°C (81°F), while June has slightly higher values with a minimum of 25°C (76°F) and an average of 28°C (82°F). The maximum temperatures are nearly identical, reaching 32°C (89°F) in September and 32°C (90°F) in June. However, September experiences a bit more precipitation, with 361 mm (14.2 in) over 28 days compared to June's 356 mm (14.0 in) across the same number of days. Humidity levels are also marginally higher in September at 90%, versus June's 87%. For more detailed insights, you can check San Fernando weather in June.
In comparing the weather between September and July, we find that both months have similar temperature ranges, with minimums around 24°C (75°F), averages of 27°C (81°F), and maximums peaking at 32°C (89°F). However, September tends to be slightly wetter, receiving 361 mm (14.2 in) of precipitation over 28 days compared to July's 378 mm (14.9 in) over 30 days. Humidity levels are quite high in both months, with September at 90% and July slightly lower at 88%. For a more detailed look at July's weather specifics, you can check San Fernando weather in July.
In comparing the weather of September and August, both months exhibit similar temperature ranges, with minimum temperatures around 24°C (75°F) and average temperatures hovering at 27°C (81°F). However, September experiences slightly higher maximum temperatures, reaching up to 32°C (89°F), compared to August's peak of 31°C (89°F). Precipitation levels are notably higher in September, totaling 361 mm (14.2 in) over 28 days, versus August's 320 mm (12.6 in) over 29 days, indicating that September is wetter despite having one fewer day of rain. Humidity remains relatively high in both months, with September at 90% and August at 89%. For further insights, you can check out San Fernando weather in August.
In comparing the weather of September and October, both months exhibit similar temperature ranges, with minimums around 24°C (75°F) and average temperatures of 27°C (81°F). However, October generally has a slightly lower maximum temperature of 31°C (89°F) compared to September's peak of 32°C (89°F). Precipitation levels are quite comparable, with September experiencing 361 mm (14.2 in) over 28 days, while October sees a close total of 353 mm (13.9 in) across 30 days. The humidity also remains high in both months, though October has a slightly lower average at 87% compared to September’s 90%. For further details on the climate in this region, you can visit San Fernando weather in October.
September and November exhibit similar temperature ranges, with both months featuring a minimum of 24°C (75°F) and an average of 27°C (81°F). However, September tends to be slightly warmer, reaching a maximum of 32°C (89°F) compared to November's peak of 31°C (88°F). In terms of precipitation, September is notably wetter, receiving 361 mm (14.2 in) over 28 days, while November sees a lower total of 283 mm (11.1 in) across 29 days. Both months maintain a high humidity level of 90%, creating a consistently tropical environment. For more details on November weather, you can visit San Fernando weather in November.
In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 27°C (81°F). The month experiences substantial rainfall, totaling 361 mm (14.2 in) over 28 days, and humidity levels are high at 90%. In comparison, December shows slightly lower maximum temperatures, peaking at 31°C (88°F), while the average remains consistent at 27°C (80°F), with a minimum of 23°C (74°F). Precipitation increases to 392 mm (15.4 in) across 29 days, and humidity rises slightly to 91%. For more insights about December weather, you can visit San Fernando weather in December.
As September unfolds in San Fernando, it brings a unique blend of warmth and rain that sets it apart from other months. With average temperatures hovering around a comfortable 27°C (81°F) and a mix of hot days and cooler nights, this month feels notably humid, often reaching up to 90%. The skies open frequently, resulting in a substantial rainfall of 361 mm spread over nearly 28 days, making it one of the wettest months of the year. This contrast enhances the lush greenery of the region, providing a vibrant backdrop for both locals and visitors. For a deeper dive into the weather patterns throughout the year, explore San Fernando Climate.