Last updated: August 21, 2025
September in Bijagua, Costa Rica is characterized by a warm and humid climate, with maximum temperatures reaching 33°C (91°F) and an average of 25°C (77°F). The month sees significant rainfall, totaling 262 mm (10.3 in), spread over an impressive 29 days. With humidity levels averaging around 80%, visitors can expect a lush and vibrant landscape, perfect for exploring the region's rich biodiversity. Whether you're wandering through the captivating rainforests or enjoying the local culture, September's weather adds a unique touch to the enchanting experience that Bijagua has to offer.
In September, Bijagua, Costa Rica experiences a comfortable climate with temperatures that showcase a subtle shift as the region transitions into the wet season. The minimum temperature hovers around 20°C (69°F), while the average stays steady at 25°C (77°F), allowing for pleasant days and cooler nights. With a maximum temperature reaching 33°C (91°F), you can expect warm afternoons, making it an ideal time for exploration and adventure, even amidst occasional rain showers. This month's temperatures reflect a gradual warming trend from the earlier months of the year, yet they maintain a mild and enjoyable atmosphere, perfect for immersing oneself in the lush tropical surroundings.
In September, Bijagua experiences a significant 262 mm (10.3 in) of precipitation over 29 days, indicating a brisk continuation of the wet season. This month is a notable tapering from the peak monthly rainfall observed in the previous months, particularly June and July, which saw upwards of 328 mm (12.9 in) and 281 mm (11.1 in), respectively. The consistent rainfall throughout the year, especially in the late months of the rainy season, nourishes the region, creating lush landscapes. With the onset of September, the rainfall is ample yet slightly reduced, hinting at the gradual transition towards the drier months ahead while still delighting the flora and fauna that thrive in this vibrant ecosystem. Overall, September retains a wet character, but it signals a subtle shift in the precipitation pattern as the year progresses towards October's expected spike.
In September, the humidity in Bijagua, Costa Rica remains notably high at 80%, reflecting a trend of elevated moisture levels as the region transitions from the dry months to the wetter season. This peak in humidity follows a notable rise during the previous months, particularly in July, when the humidity soars to an impressive 85%. As the year progresses, a pattern emerges where the humidity steadily climbs from June, eventually peaking in the late summer before beginning to taper off in the autumn months. Despite this temporary spike, September's levels illustrate the region's tropical climate, where lush landscapes thrive under consistent humidity, setting the stage for the vibrant biodiversity that characterizes this beautiful part of Costa Rica.
In September, Bijagua, Costa Rica maintains its reputation for intense sunlight, with a UV Index of 13, classified as extreme, indicating a burn time of just 10 minutes. This reflects a consistent trend from earlier months, where the UV Index soared as high as 15 in April, demonstrating the region's year-round exposure to potent sun rays. As we transition through the year, the UV Index remains significant, rarely dropping below the extreme category, which emphasizes the need for protective measures against sun exposure. Visitors and locals alike should be mindful of these high levels and take necessary precautions to enjoy the beautiful outdoor scenery safely. For detailed insights, check out Bijagua UV Index.
UV Risk Categories
September in Bijagua, Costa Rica, offers a delightful blend of beautiful weather and vibrant nature. With 262 hours of sunshine, this month reflects a slight dip from the peak sunny days of March, which boasts 333 hours. After the lush and rainier months of May and June, where hours hovered around 270, September maintains a comfortable balance, introducing the onset of the dry season intertwined with the lingering greens of the rainforest. As the year progresses toward October's 244 hours, the gentle warmth of September encourages a perfect backdrop for exploration and adventure, showcasing the region's stunning biodiversity before the skies begin to shift.
In Bijagua, Costa Rica, September tends to be one of the cloudiest months, with a sunny weather chance of just 12%. This trend of diminishing sunshine starts as early as July, peaking in the rainy season over the summer, and persists into September as nature takes center stage with lush greenery and revitalized ecosystems. Visitors seeking bright skies may want to plan their trips for the drier months of January or February, when the likelihood of sun reaches a much more favorable 35%. As the region's climate evolves, it's clear that September is a time for tranquility and embracing the vibrant beauty of nature rather than basking in sunlight.
In September, Bijagua, Costa Rica, enjoys a consistent 12 hours of daylight, aligning with the trend observed since March. This month is part of a stretch from March to August when daylight remains abundant, fostering a vibrant atmosphere throughout the region. As the year transitions into October, daylight begins to taper off, returning to 11 hours. This rhythm of alternating daylight durations is characteristic of the tropical climate, offering a captivating blend of light and shadow that enriches the natural beauty of Bijagua. Whether basking in the sun or enjoying cooler evening hours, visitors can appreciate the steady daylight that September brings.
As September unfolds in Bijagua, Costa Rica, the gentle whispers of the wind linger in the air, with an average speed of 1.3 m/s (3 mph). This relatively calm breeze is characteristic of the month, mirroring the stillness experienced in both August and October. As the year progresses from the lively winds of March at 3.4 m/s (8 mph), we see a noticeable decline into the late rainy season, hinting at the transition into a more tranquil phase. The drop in wind speed during these months creates a serene atmosphere, inviting visitors to embrace the lush surroundings and the vibrant wildlife that thrive in this peaceful environment. Just as the wind softens, so does the pace of life in this enchanting corner of Costa Rica, encouraging a deeper connection with nature.
Weather in Bijagua varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bijagua, focusing on differences in temperature, rainfall, humidity, and UV levels.
September weather tends to be much warmer and more humid than January, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 33°C (91°F) and an average of 25°C (77°F). The month is also quite wet, experiencing high precipitation levels of 262 mm (10.3 in) over 29 days, contributing to a humidity level of 80%. In contrast, January is cooler, with temperatures ranging from 15°C (59°F) to 30°C (86°F) and an average of 23°C (74°F). The precipitation in January is lower at 192 mm (7.6 in) over 23 days, and the humidity drops to 66%. For a detailed look at the weather conditions in January, visit Bijagua weather in January.
September and February feature similar temperature ranges, with September experiencing slightly warmer conditions, averaging 25°C (77°F) compared to February's 24°C (75°F). However, September is characterized by significantly higher precipitation, totaling 262 mm (10.3 in) over 29 days, while February sees much less rain at 113 mm (4.4 in) across 22 days. Additionally, September has a higher humidity level at 80%, in contrast to February's 64%. For more detailed insights on February weather, you can check Bijagua weather in February.
September and March exhibit contrasting weather patterns, with September typically warmer and significantly wetter. In September, the temperatures range from a minimum of 20°C (69°F) to a maximum of 33°C (91°F), accompanied by an average humidity of 80%. This month also sees substantial rainfall, with 262 mm (10.3 in) spread over 29 days. Conversely, March features slightly cooler temperatures, with a minimum of 18°C (64°F) and a maximum of 31°C (88°F), while experiencing much less precipitation at 135 mm (5.3 in) over 26 days and lower humidity at 63%. For more details on weather specifics, visit Bijagua weather in March.
In comparing the weather of September and April, both months feature similar average temperatures, with September ranging from a minimum of 20°C (69°F) to a maximum of 33°C (91°F), and April exhibiting a minimum of 19°C (66°F) and the same maximum of 33°C (92°F). However, September is significantly wetter, receiving 262 mm (10.3 in) of precipitation over 29 days, while April experiences much lighter rainfall with only 92 mm (3.6 in) over 21 days. Additionally, September boasts a higher humidity level at 80%, compared to April's more comfortable 63%. For more detailed insights into April's weather, visit Bijagua weather in April.
In comparing the weather of September and May, we see that both months exhibit similar minimum temperatures, consistently around 20°C (69°F). However, May tends to be slightly warmer on average, with a peak temperature of 34°C (94°F) compared to September's maximum of 33°C (91°F). Rainfall is prevalent in both months, with May receiving 285 mm (11.2 in) and September slightly less at 262 mm (10.3 in), both spread across 29 days. Notably, the humidity in September is higher at 80%, while May enjoys a more comfortable level at 63%. For more detailed information about the weather in May, check out Bijagua weather in May.
In September, the weather remains warm with a minimum temperature of 20°C (69°F) and an average of 25°C (77°F), similar to June, which has a slightly higher minimum of 21°C (70°F). Both months share a maximum temperature of 33°C (91°F), but September experiences heavier rainfall, with 262 mm (10.3 in) over 29 days compared to June's 328 mm (12.9 in) across 30 days. Additionally, September has a higher humidity level at 80%, while June's humidity is more moderate at 74%. For more details on June weather, visit Bijagua weather in June.
In comparing the weather of September and July, both months experience warm temperatures with averages hovering around 25°C (77°F). However, September tends to have slightly higher maximum temperatures, reaching up to 33°C (91°F), compared to July's 31°C (89°F). Precipitation patterns also differ, with September recording 262 mm (10.3 in) of rain over 29 days, while July sees a bit more rainfall at 281 mm (11.1 in) over 31 days. Humidity levels are notably higher in July at 85%, compared to 80% in September, contributing to a more muggy atmosphere during the earlier month. For more detailed insights, check out Bijagua weather in July.
In comparing the weather between August and September, we find that both months exhibit similar average temperatures, with September experiencing a slightly lower minimum temperature of 20°C compared to August’s 21°C. The maximum temperatures remain relatively close, with September peaking at 33°C, just above August's 32°C. Precipitation in September totals 262 mm over 29 days, which is marginally less than the 282 mm of rainfall experienced in August across 31 days. Humidity levels are also slightly lower in September at 80%, compared to 82% in August. For more details specifically on August's climate, you can explore Bijagua weather in August.
In comparing the weather of September and October, both months exhibit similar average temperatures, with September slightly warmer at 25°C (77°F) compared to October's 25°C (76°F). However, October experiences a slightly higher minimum temperature of 21°C (69°F) compared to September's 20°C (69°F). One notable difference is the increase in precipitation, with October seeing 369 mm (14.5 in) of rain over 29 days, compared to September's 262 mm (10.3 in). The humidity levels remain similar, with September at 80% and October slightly lower at 79%. For more detailed insights, check out Bijagua weather in October.
September and November exhibit similar minimum temperatures, with both months starting around 20°C (69°F). However, September tends to be warmer, with average highs reaching 33°C (91°F), compared to November's maximum of 31°C (88°F). Precipitation levels are notably higher in November, with 299 mm (11.8 in) of rain over 28 days, slightly more than September's 262 mm (10.3 in) spread across 29 days. Humidity remains high in both months, at around 80% in September and 79% in November, creating a consistently humid atmosphere. For a detailed look at November's weather in Bijagua, visit Bijagua weather in November.
In September, the weather is typically warm with an average temperature of 25°C (77°F) and highs reaching up to 33°C (91°F). The month is characterized by significant rainfall, with about 262 mm (10.3 in) falling over 29 days and a humidity level of 80%, making it quite humid and sticky. In contrast, December shows slightly cooler temperatures, with an average of 24°C (75°F) and maximums of 30°C (86°F). Although December experiences slightly higher precipitation at 267 mm (10.5 in) over the same number of days, the humidity drops to 70%, resulting in a more comfortable feel. For a detailed look at December weather, you can check out Bijagua weather in December.
In September, Bijagua experiences a notable shift in weather that stands out from other months. The temperature remains relatively warm, averaging around 25°C (77°F), but it's the high humidity and frequent rainfall—with almost every day seeing some precipitation—that truly define this time of year. With 262 mm of rain falling over just about 29 days, visitors may find the lush landscapes even more vibrant and alive, albeit at the cost of the sunshine typical of the dry season. While the tropical atmosphere might deter some, it offers a unique opportunity to enjoy the rich biodiversity of the area, making it a perfect time for nature enthusiasts. For more details on what to expect, check out Bijagua Climate.