Last updated: August 27, 2025
In September, San Fernando, Philippines experiences a warm and humid climate, with maximum temperatures reaching up to 35°C (95°F) and an average of 29°C (84°F). The minimum temperature dips to around 24°C (76°F), providing a relatively comfortable night’s rest. This month witnesses significant rainfall, accumulating to 229 mm (9.0 in) over 23 days, contributing to an overall humidity level of 90%, creating a lush and balmy atmosphere. Travelers and locals alike should prepare for frequent showers interspersed with warm tropical conditions.
In September, temperatures in San Fernando, Philippines, settle into a warm yet manageable rhythm. With a minimum temperature of 24°C (76°F) and a maximum reaching 35°C (95°F), this month embodies the transition between the peak summer heat and the upcoming cooler months. The average temperature holds steady at 29°C (84°F), mirroring the consistent warmth seen in the previous months. This stability hints at a tropical climate that invites both leisurely days under the sun and comfortable evenings. As the rainy season progresses, September also serves as a reminder of both warmth and potential downpours, blending summer's lingering embrace with the refreshing whispers of autumn.
September in San Fernando, Philippines, marks a significant transition in the rainfall pattern, with precipitation reaching 229 mm (9.0 in) over 23 days. This amount represents a notable increase compared to the preceding months, especially as it follows the relatively drier April and March. The rainy season peaks as it heads toward October, where both the precipitation and number of rainy days tend to escalate further, signaling the onset of heavier rains typical of the region. This seasonal surge not only highlights September’s role in the annual rainfall cycle, but also reinforces the trend of increasing precipitation as the year progresses, making it a pivotal month for the agricultural and environmental dynamics in the area.
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.
As September rolls into San Fernando, the UV Index remains consistently high, peaking at 15 on the scale, which categorizes it as extreme exposure. This trend of intense sunlight is a hallmark of the region, where the burn time is a mere 10 minutes, emphasizing the importance of sun protection. Following a slight dip in the previous months, the UV Index in September still sits significantly above moderate levels, much like its preceding summer months. As such, residents and visitors alike should remain vigilant against potential sunburn and embrace protective measures. For ongoing updates on the UV Index, visit San Fernando UV Index.
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September in San Fernando, Philippines, welcomes a generous 281 hours of sunshine, continuing the trend of vibrant summer months that precede it. This slight dip from August's 293 hours suggests a gentle transition into the cooler months, as the city enjoys a tapestry of sunny, bright days throughout the year. The peak sunshine occurs in May, with an impressive 320 hours, showing that summer still reigns strong. However, even as the year approaches its close, September remains radiant, hinting at the lush landscapes and vibrant outdoor life that thrive under the Philippine sun. As the days gradually soften, San Fernando captures the essence of sunlit warmth, setting the stage for the enchanting beauty of the upcoming season.
In September, San Fernando, Philippines experiences the lowest likelihood of sunny weather throughout the year, with only a 10% chance of sunshine. This marks a significant decline from the milder chances observed in the earlier months, including 36% in March and 25% in April. As the region transitions from the peak of the rainy season, the sun often takes a backseat, making way for cloudier skies and higher humidity. Trends suggest that, as summer fades into the wetter months, visitors should prepare for the possibility of overcast days and occasional rain, as September is among the least favorable months for enjoying the sun in this vibrant coastal city.
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 rolls into San Fernando, the wind picks up ever so slightly, with an average speed of 2.0 m/s (4 mph). This marks a subtle shift from the lighter breezes of the summer months, where June and August dipped to a mere 1.5 m/s (3 mph) and 1.8 m/s (4 mph), respectively. The gentle winds provide a refreshing contrast to the preceding heat, and as we transition into the latter part of the year, we observe a trend of increasing wind speeds, peaking in December at 4.1 m/s (9 mph). Although September’s breezes are mild, they signal the approach of the more robust gusts that await in the months to come, making it a transitional month filled with promise for a more invigorating autumn.
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.
September and January display distinct weather patterns, highlighting the transition from late summer to early winter. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 35°C (95°F), with a high average of 29°C (84°F). This month is characterized by significant precipitation, totaling 229 mm (9.0 in) over 23 days, and humidity levels peaking at a suffocating 90%. In contrast, January sees slightly cooler temperatures, with a minimum of 23°C (74°F) and a maximum of 32°C (91°F). The average temperature drops to 27°C (82°F), and precipitation decreases to 205 mm (8.1 in) across the same number of rainy days, with humidity at a more manageable 85%. For more detailed information, you can explore San Fernando weather in January.
In comparing the weather conditions of September and February, it is evident that September is typically hotter and more humid. September sees daily temperatures ranging from a minimum of 24°C (76°F) to a maximum of 35°C (95°F), with an average of 29°C (84°F). In contrast, February has slightly cooler temperatures, with a minimum of 22°C (72°F) and a maximum of 33°C (91°F), averaging 27°C (82°F). Additionally, September experiences much more precipitation, totaling 229 mm (9.0 in) over 23 days, compared to February's 130 mm (5.1 in) over 21 days. Humidity levels are also higher in September at 90%, while February sees a lower humidity rate of 80%. For more details about February weather, you can visit San Fernando weather in February.
In comparing the weather of September and March, we can observe some notable differences. September typically features warmer temperatures with a minimum of 24°C (76°F) and a maximum of 35°C (95°F), while March has slightly cooler temperatures, with a minimum of 22°C (72°F) and a maximum of 33°C (91°F). Additionally, September experiences significantly higher precipitation, receiving 229 mm (9.0 in) over 23 days compared to March's 113 mm (4.4 in) over 22 days. Humidity levels are also higher in September at 90%, compared to March's 77%. For more details on March weather, refer to San Fernando weather in March.
In comparing the weather of September and April, both months share similar temperature ranges, with minimums around 24°C (75-76°F) and maxima reaching up to 35°C (95°F). However, September is notably wetter, receiving 229 mm (9.0 in) of precipitation across 23 days, while April sees considerably less rain at 90 mm (3.6 in) over just 20 days. Additionally, humidity tends to be higher in September at 90%, compared to April's 78%, making September feel more muggy. For more detailed information on April's weather, you can check out San Fernando weather in April.
In comparing the weather between September and May, we notice that both months experience warm temperatures, but May tends to be slightly hotter, with an average of 30°C (86°F) compared to September’s average of 29°C (84°F). The maximum temperature in May can reach up to 36°C (97°F), while in September, it peaks at 35°C (95°F). Precipitation is common in both months, with September receiving a total of 229 mm (9.0 in) over 23 days, making it wetter than May, which sees 204 mm (8.0 in) spread over 29 days. Interestingly, September has a higher humidity level at 90% compared to May’s 84%, contributing to a more sultry atmosphere during the former. For more specific details on weather during May in the region, you can check San Fernando weather in May.
Both September and June feature similar temperature ranges, with average temperatures hovering around 29°C (84°F), peaking at 35°C (95°F). However, September tends to be slightly wetter, receiving about 229 mm (9.0 in) of precipitation over 23 days, compared to June's 227 mm (8.9 in) spread over 26 days. Humidity levels are also comparable, with September experiencing 90% and June being slightly lower at 87%. For a closer look at June weather in San Fernando, you can visit San Fernando weather in June.
In comparing the weather between September and July, both months experience similar average temperatures, with September having a minimum of 24°C (76°F) and July slightly warmer at 25°C (77°F). The maximum temperatures remain close as well, with September reaching up to 35°C (95°F) and July peaking at 34°C (94°F). However, September sees a slight increase in precipitation, totaling 229 mm (9.0 in) over 23 days, compared to July's 262 mm (10.3 in) over 26 days. Humidity levels are also quite high in both months, with September at 90% and July at 88%. For a more detailed look at July weather, visit San Fernando weather in July.
In September, the weather closely resembles August, with both months sharing an average temperature of 29°C (84°F) and a maximum of 35°C (95°F). However, September tends to be slightly more humid, with levels reaching 90% compared to August's 89%. Additionally, September experiences a higher total precipitation of 229 mm (9.0 in) across 23 days, while August has 193 mm (7.6 in) over 22 days. This increase in rainfall makes September feel wetter overall. For a closer look at August weather details, you can visit San Fernando weather in August.
In September, the weather features a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), peaking at 35°C (95°F). This month also experiences significant rainfall, with a total precipitation of 229 mm (9.0 in) spread over 23 days and humidity levels reaching 90%.
In contrast, October maintains a similar average temperature of 29°C (84°F), but with a slightly higher minimum of 25°C (77°F) and a maximum of 34°C (93°F). However, it sees increased rainfall, totaling 262 mm (10.3 in) across 28 days, with slightly lower humidity at 87%. As a result, October is marked by consistent warmth but heightened precipitation compared to September. For a more detailed look at October's weather, you can visit San Fernando weather in October.
In comparing the weather of September and November, we observe that both months maintain similar temperatures, with September averaging 29°C (84°F) and November slightly cooler at 28°C (83°F). However, November boasts a marginally higher minimum temperature of 25°C (77°F) compared to September’s 24°C (76°F). Rainfall increases in November, with total precipitation reaching 246 mm (9.7 in) over 27 days, while September registers 229 mm (9.0 in) across 23 days. Additionally, humidity remains consistent at 90% for both months, creating a tropical atmosphere. For more detailed information about the conditions you can expect in November, check out San Fernando weather in November.
In comparing the weather of September and December, both months showcase warm temperatures, but December experiences slightly cooler averages. September sees a minimum of 24°C (76°F) and an average high of 35°C (95°F), while December maintains a similar minimum of 24°C (75°F) but averages a high of 33°C (91°F). Precipitation is notably higher in December, with 316 mm (12.4 in) over 29 days compared to September's 229 mm (9.0 in) across 23 days, leading to a marginal increase in humidity from 90% in September to 91% in December. For more detailed information on December weather, you can check San Fernando weather in December.
September in San Fernando stands out with its warm temperatures and notably high humidity, creating a tropical atmosphere that is quite distinct from the drier months of the year. While the average temperature hovers comfortably around 29°C, the month is characterized by frequent rain, with a significant number of days experiencing precipitation. This shift towards a wetter climate not only invigorates the lush landscapes but also sets the tone for the upcoming seasons. Visitors and residents alike should prepare for the deliciously humid days and embrace the refreshing rain showers that characterize the onset of the rainy season. For more detailed insights on what to expect throughout the year, check out the San Fernando Climate.