Last updated: August 21, 2025
September in Santa Ana, El Salvador, is characterized by warm temperatures and ample rainfall, presenting a dynamic and vibrant atmosphere. With a maximum temperature of 35°C (96°F) and a comfortable average of 25°C (78°F), residents and visitors can expect a tropical climate amidst lush surroundings. The month is marked by high humidity at 77% and a significant precipitation amount of 212 mm (8.4 in), resulting in 27 days of rain. This lively weather pattern not only fuels the rich biodiversity of the region but also offers a unique experience for those exploring El Salvador's natural beauty during this wetter season.
In September, temperatures in Santa Ana, El Salvador, exhibit a delightful blend of warmth and comfort. The month typically sees minimum temperatures around 19°C (67°F), offering a mild start to the days, while the average settles at a pleasant 25°C (78°F). With a maximum of 35°C (96°F), the higher temperatures still maintain a tropical warmth, similar to the preceding months. This trend showcases a slight dip from the peak summer heat of August, but still retains that inviting climate that characterizes Santa Ana. As the rainy season continues, the combination of moderate temperatures and an occasional refreshing downpour creates an ideal backdrop for enjoying the vibrant culture and natural beauty of the region.
In September, Santa Ana experiences a significant uptick in rainfall, with a striking 212 mm (8.4 in) of precipitation recorded over 27 days. This month stands out as one of the wettest of the year, showcasing a dramatic shift from the drier months earlier in the year. Following the pattern established from May through August, where rainfall progressively increased, September continues this trend, solidifying its place in the heart of the rainy season. The abundant moisture not only invigorates the lush landscapes but also sets the stage for continued precipitation in the following months. As we move towards October, while rain persists, September’s deluge establishes a peak that highlights the region's climatic rhythm.
In September, Santa Ana experiences a noticeable shift in humidity, with levels reaching 77%, maintaining the elevated humidity trend established in the preceding months. This increase contrasts with the drier conditions seen from January to May, where humidity hovered around 59% to 63%. As the year progresses, a gradual rise becomes evident, culminating in the peak humdity during the summer months of July and August. Following September, humidity levels stabilize at 77% through October, slightly tapering off in the months that follow. This pattern highlights Santa Ana's transition into its more humid season, offering a reminder of the region's tropical climate.
In September, Santa Ana, El Salvador, maintains a UV Index of 13, categorizing the sun exposure risk as extreme. This level reflects a consistent pattern observed from recent months, with the UV Index staying notably high at 14 from March through July before slightly dipping. As the year transitions into the latter months, such as October with the same index, it remains critical for residents and visitors alike to take precautions against sunburn, as even just 10 minutes of exposure can lead to skin damage. The intensity of UV radiation in Santa Ana underscores the importance of sun safety measures year-round. For more detailed information on the UV Index, visit Santa Ana UV Index.
UV Risk Categories
In September, Santa Ana basks in a delightful 284 hours of sunshine, marking a gentle decline from the summer peak months of July and August. This decrease, while subtle, reflects the transition into the wetter season, yet still offers plenty of bright days for locals and visitors alike to enjoy the charm of El Salvador. Following the vibrant summer, the sunshine hours in September remain robust compared to earlier months, such as June with its 269 hours, providing a lovely opportunity for outdoor activities before the cooler months of October and November. Overall, Santa Ana's September sunshine serves as a reminder that summer's warmth lingers just a bit longer, paving the way for a mellow autumn.
When considering the likelihood of sunny weather in September in Santa Ana, El Salvador, it's noteworthy that this month marks a significant dip in sun exposure, with only a 26% chance of clear skies. This aligns with a broader trend of diminishing sunlight as the rainy season unfolds, particularly from June to August, where sunshine chances plummet to as low as 14%. However, as September progresses into October, there's a slight uptick, with a 33% chance of sunshine. Overall, those planning activities in September should be prepared for the likelihood of rain, as this month offers one of the lower probabilities for sunny weather compared to other times of the year.
In Santa Ana, El Salvador, September brings a delightful continuation of ample daylight, with the city enjoying 12 hours of sunlight. This month fits snugly into a broader trend observed from March through September, where daylight consistently stretches to a generous 12 hours, ideal for outdoor activities and exploration. As the year progresses, daylight gradually begins to decline in October, settling back to 11 hours in the months that follow. This rhythmic pattern of sunlight not only marks the passage of seasons but also provides residents and visitors alike with a vibrant backdrop to experience the culture and natural beauty of the region.
As September graces Santa Ana, El Salvador, the winds whisper gently at an average speed of 1.3 m/s (3 mph), marking a calm transition into the latter part of the year. This month, like the preceding summer months, shows a notable dip in wind activity, contrasting sharply with the breezy November, which typically boasts an average of 3.0 m/s (7 mph). From the slightly breezy January, February, and March, where winds reach up to 2.8 m/s (6 mph), to the serene stillness of June and July, September reflects a consistent trend of quieter air. This pattern hints at the onset of the dry season, paving the way for the more vibrant and lively winds just around the corner.
Weather in Santa Ana varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Ana, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between September and January, it's clear that September is significantly warmer and more humid. With average temperatures around 25°C (78°F) and highs reaching up to 35°C (96°F), September also experiences heavy rainfall, accumulating 212 mm (8.4 in) over 27 days. In contrast, January offers milder conditions, with average temperatures of 24°C (75°F) and highs of 34°C (94°F), but it's notably drier with just 3 mm (0.1 in) of precipitation and no rainy days. Additionally, humidity drops to 63% in January, providing a much more comfortable atmosphere. For more detailed information on January conditions, check out Santa Ana weather in January.
September and February showcase contrasting weather patterns. In September, temperatures range from a mild 19°C (67°F) to a sweltering 35°C (96°F), accompanied by significant rainfall totaling 212 mm (8.4 in) spread over 27 days, and humidity levels soaring to 77%. In contrast, February experiences a slightly lower temperature minimum of 14°C (57°F) while still reaching a high of 36°C (97°F). Notably, February boasts very little precipitation, with only 3 mm (0.1 in) recorded, and not a single rainy day, leading to a humidity level of just 62%. For more details about the weather in February, you can visit Santa Ana weather in February.
In September, the weather is characterized by a warm average temperature of 25°C (78°F), with daytime highs reaching up to 35°C (96°F). However, this month also sees significant rainfall, with a total of 212 mm (8.4 in) spread across 27 days, leading to a high humidity level of 77%. In contrast, March experiences slightly cooler minimum temperatures at 16°C (61°F) and an average of 26°C (79°F), but can reach maximums of 38°C (100°F). Notably, March is remarkably dry, with just 3 mm (0.1 in) of precipitation over the month and no rainy days, resulting in a lower humidity of 59%. For more detailed information, you can refer to Santa Ana weather in March.
September and April present contrasting weather conditions. In September, the temperatures range from a minimum of 19°C (67°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). However, it is also a much wetter month, featuring 212 mm (8.4 in) of precipitation over 27 days and a high humidity level of 77%. In stark contrast, April experiences warmer temperatures with a minimum of 18°C (64°F), an average of 27°C (81°F), and a peak at 37°C (99°F). The precipitation in April is significantly lower, at just 32 mm (1.3 in) over 8 days, and the humidity is also more comfortable at 59%. For more specific insights into the weather patterns during April, you can visit Santa Ana weather in April.
When comparing the weather in September and May, it is evident that both months experience warm temperatures. September has a minimum temperature of 19°C (67°F) and an average of 25°C (78°F), peaking at a maximum of 35°C (96°F). In contrast, May starts slightly warmer with a minimum of 20°C (68°F) and an average of 26°C (80°F), reaching a maximum of 36°C (97°F). While May has a lower total precipitation of 174 mm (6.9 in) over 23 days, September sees more rainfall at 212 mm (8.4 in) while enduring wet conditions for 27 days. Additionally, humidity levels are noticeably higher in September at 77%, compared to May’s 59%. For more details on the weather patterns during this time, you can explore Santa Ana weather in May.
In comparing the weather between September and June, we see that both months share similar temperature ranges, with minimums of 19°C (67°F), averages of 25°C (78°F), and maximums reaching 35°C (96°F). However, September experiences slightly higher precipitation, totaling 212 mm (8.4 in) over 27 days, compared to June's 225 mm (8.8 in) over 24 days. Additionally, humidity levels are noticeably higher in September at 77%, while June maintains a more comfortable level at 68%. For a detailed look at June weather in Santa Ana, you can visit Santa Ana weather in June.
When comparing the weather in September and July, we observe notable differences in temperature and precipitation. September typically experiences a minimum temperature of 19°C (67°F) and an average of 25°C (78°F), while in July, the temperatures are slightly higher with a minimum of 20°C (68°F) and an average of 27°C (80°F). Additionally, July often sees lower precipitation, averaging 68 mm (2.7 in) over 15 days, as opposed to September's significantly higher rainfall of 212 mm (8.4 in) over 27 days. Both months maintain a consistent humidity of 77%, creating a humid atmosphere. For more detailed weather specifics in July, you can check Santa Ana weather in July.
In comparing the weather patterns of September and August, September experiences slightly lower average and minimum temperatures, with averages of 25°C (78°F) and a minimum of 19°C (67°F), while August records a higher average of 26°C (79°F) and a minimum of 20°C (67°F). Both months exhibit similar maximum temperatures, with September peaking at 35°C (96°F) and August at 36°C (96°F). However, September is notably wetter, receiving 212 mm (8.4 in) of precipitation over 27 days compared to August's 131 mm (5.1 in) across 20 days. Humidity levels remain relatively high in both months, but August's average humidity is slightly higher at 79% compared to September's 77%. For more details on August weather patterns, you can visit Santa Ana weather in August.
In September, the weather features a minimum temperature of 19°C (67°F) and a maximum of 35°C (96°F), with an average of 25°C (78°F). It also experiences significant rainfall, totaling 212 mm (8.4 in) over 27 days, coupled with high humidity levels at 77%.
In contrast, October sees a slight drop in temperatures with a minimum of 18°C (65°F) and a maximum of 34°C (94°F), while maintaining an average of 25°C (77°F). Precipitation is reduced to 185 mm (7.3 in) over 22 days, yet humidity remains consistent at 77%.
For more detailed information, you can refer to Santa Ana weather in October.
In comparing the weather between September and November, September sees higher maximum temperatures, with averages reaching up to 35°C (96°F), compared to November's peak of 34°C (93°F). Both months experience similar average temperatures at around 25°C (77°F), but September is significantly wetter, with 212 mm (8.4 in) of precipitation over 27 days, while November only receives 40 mm (1.6 in) over just 4 days. Humidity levels are also slightly lower in November at 75%, compared to September's 77%. For a detailed look at the weather specifics for November, check out Santa Ana weather in November.
In September, the weather in Santa Ana is characterized by warmer temperatures, with a minimum of 19°C (67°F) and an average of 25°C (78°F), peaking at a hot 35°C (96°F). This month also sees significant rainfall, with a total of 212 mm (8.4 in) spread over 27 days, resulting in high humidity levels at 77%. In contrast, December offers a more temperate climate, with a minimum temperature of 14°C (58°F) and an average of 24°C (76°F), reaching a maximum of 34°C (94°F). Notably, December experiences very little precipitation, with only 4 mm (0.2 in) falling on just 1 day and a reduced humidity of 66%. For more specific details about December weather, you can visit Santa Ana weather in December.
As September arrives in Santa Ana, the weather showcases a unique character distinct from other months. With temperatures reaching a maximum of 35°C and an average of 25°C, the warmth persists, but it is met with a notable increase in humidity, hovering around 77%, which can make the heat feel more intense. The month also experiences significant rainfall, with 27 days of precipitation accumulating to approximately 212 mm, transforming the landscape and refreshing the air. This combination of heat and humidity, coupled with frequent showers, creates a dynamic and vibrant environment, making September a month of transition in Santa Ana. For a deeper dive into how this month fits into the broader context of weather patterns, visit Santa Ana Climate.