Last updated: August 21, 2025
In September, Golfito, Costa Rica, experiences a tropical climate characterized by warm temperatures and high humidity. With a maximum temperature reaching 30°C (87°F) and an average of 25°C (78°F), visitors can expect warm days, while nighttime temperatures dip to a comfortable 22°C (72°F). This month also marks a notable increase in precipitation, averaging 474 mm (18.7 in) over approximately 29 rainy days, making it one of the wettest periods of the year. Despite the rain, the lush landscapes and vibrant wildlife create an enchanting atmosphere, making Golfito a unique destination for eco-adventurers.
In September, Golfito, Costa Rica, offers a warm climate with temperatures that reflect the transition of the wet season. The minimum temperature hovers around 22°C (72°F), providing a comfortable base. As the month progresses, daily highs reach about 30°C (87°F), which is consistent with the summer months. Interestingly, the average temperature dips slightly to 25°C (78°F), hinting at increased cloud cover and potential rain as the region experiences its characteristic downpours. This trend of high humidity and warmth is typical for September, allowing visitors to enjoy lush landscapes while preparing for the invigorating rains that nourish the vibrant ecosystem.
September in Golfito, Costa Rica, continues the region's trend of heavy rainfall, registering 474 mm (18.7 in) of precipitation over 29 days. While this marks a decrease from the peak of August’s 544 mm (21.4 in), it remains a significant contributor to the wet season. The consistency of rainfall patterns from May to October underscores Golfito's tropical climate, ensuring lush landscapes and vibrant ecosystems. With average precipitation steadily rising through May and peaking in October at 605 mm (23.8 in), September serves as a transitional month, bridging the heavier rains of mid-year with the heightened deluge that follows. This rhythmic cycle of moisture not only shapes the environment but also supports the rich biodiversity that makes Costa Rica a haven for nature lovers.
In Golfito, Costa Rica, September showcases a humidity level of 81%, continuing the trend of elevated moisture that peaks during the middle of the year. As the lush tropical climate evolves, humidity experiences a significant jump from the more moderate levels of 66% to 69% observed in the earlier months. Following a steep rise in June and July, where it reaches a high of 85%, September marks a slight decrease but still remains comfortably high. This pattern illustrates the region's transition into the wetter season, underscoring the atmosphere's lushness and vibrant ecosystem as it prepares for the upcoming months of rain.
September in Golfito, Costa Rica, continues the trend of extreme UV exposure, with an index reading of 14. This marks a slight dip from the highest peak in April and May, which both registered a UV Index of 15. Nevertheless, sun safety remains paramount, as the burn time remains a swift 10 minutes. The consistent extreme levels throughout the year, ranging from January's 12 to September's 14, underscore the need for vigilance against sunburn. As you enjoy the beautiful landscapes and vibrant culture of Golfito, be sure to check the latest updates and tips to protect yourself from harmful UV rays. For more information on the UV Index in Golfito, visit Golfito UV Index.
UV Risk Categories
September in Golfito, Costa Rica, showcases the gentle embrace of sunshine, offering 241 hours of bright light that softly nestles between the more intense months of summer and the beginning of the rainy season. While this month sees a slight dip from the summer peak months like March, with its remarkable 336 hours, it still provides an inviting climate for outdoor activities and exploration. As August fades with 229 hours of sunlight, September serves as a refreshing transition, paving the way for the milder days of October, which averages only 220 hours. This trend highlights Golfito’s delightful ability to balance sun and shade, making September an ideal time for those seeking both warmth and a touch of tranquility before the year draws to a close.
In Golfito, Costa Rica, the likelihood of sunny weather is notably low during September, with only a 9% chance of sunshine. This month follows a trend of diminishing sunlight that begins in April and continues through the rainy season. Conversely, March shines as the sunniest month with a 44% chance, while the months preceding September, such as August and July, provide even less opportunity for bright skies, dropping to 4% and 10%, respectively. As the region transitions into October, the chances only slightly improve, maintaining a persistent cloud cover characteristic of the wet season. Thus, if you're seeking sunshine during September, it's wise to set your expectations accordingly!
In Golfito, Costa Rica, September boasts a pleasant 12 hours of daylight, consistent with the trend established in the previous months from March to August. This steady daylight duration reflects the region's tropical climate, offering ample time for outdoor activities. Following September, daylight gradually decreases in October, marking a return to shorter days that span 11 hours in both October and the following months. The seamless transition from longer summer days to shorter autumn hours provides a captivating rhythm to life in Golfito, where the sun's embrace remains generous for much of the year.
In Golfito, Costa Rica, the September wind offers a gentle embrace, with an average speed of 1.4 m/s (3 mph), mirroring the calm breezes felt throughout much of the year. A subtle trend emerges as we observe the wind speeds across the months—stable and soothing conditions prevail, particularly from January to August, where averages hover around 1.2 to 1.5 m/s. As the year transitions from late summer into early fall, the winds maintain their mild character, reflecting a consistency that enhances the charm of this coastal paradise. This steady airflow not only provides comfort for outdoor enthusiasts but also complements the lush surroundings, making September an ideal time to explore the beauty of Golfito.
Weather in Golfito varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Golfito, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is generally warmer and more humid, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F). This month also experiences significant rainfall, totaling 474 mm (18.7 in) over 29 days, contributing to a humidity level of 81%. In contrast, January offers slightly cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 29°C (85°F), along with much less precipitation—only 210 mm (8.3 in) over 23 days—resulting in lower humidity at 68%. As a result, January's weather is more comfortable and drier than that of September. For more details, you can check Golfito weather in January.
When comparing the weather in September and February, one can observe some notable differences. September typically experiences slightly warmer temperatures, with a minimum of 22°C (72°F) and an average of 25°C (78°F), while February has a minimum of 20°C (67°F) and a similar average of 26°C (78°F). Both months have a maximum temperature of around 30°C (86°F to 87°F). However, precipitation levels differ significantly; September sees a high of 474 mm (18.7 in) over 29 days, making it much wetter than February, which has only 182 mm (7.2 in) over 22 days. Additionally, humidity hovers higher in September at 81%, compared to February's 68%. For a more detailed look at February conditions, check out Golfito weather in February.
When comparing the weather in September and March, we see notable differences in temperature, precipitation, and humidity. September typically features slightly warmer nights with a minimum temperature of 22°C (72°F) and an average of 25°C (78°F), while March maintains a similar minimum of 21°C (70°F) and a slightly higher average of 26°C (79°F). However, September is characterized by significantly heavier rainfall, with 474 mm (18.7 in) over 29 days, in contrast to March's much drier conditions, which see 177 mm (7.0 in) across 25 days. Additionally, September has a higher humidity level at 81%, compared to March’s 66%, creating a more humid environment in the former month. For more details on Golfito's weather during March, you can check out Golfito weather in March.
In comparing the weather between September and April, both months exhibit relatively warm temperatures, with September ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F) and April slightly warmer with minimum temperatures of 22°C (71°F) and maximums reaching 31°C (88°F). However, September experiences significantly higher precipitation, totaling 474 mm (18.7 in) over 29 days, while April sees much less with 282 mm (11.1 in) across 28 days. Additionally, the humidity levels in September are notably higher at 81%, compared to 67% in April. For a more detailed perspective on April's weather, you can explore Golfito weather in April.
In comparing the weather of September and May, we observe some notable similarities and differences. Both months feature a minimum temperature of around 22°C (72°F), but May tends to be slightly warmer overall, with an average temperature of 26°C (79°F) compared to September's average of 25°C (78°F). Additionally, May has a maximum temperature of 31°C (88°F), just edging out September's maximum of 30°C (87°F).
Precipitation levels also differ, with May experiencing slightly higher rainfall at 517 mm (20.3 in) over 30 days, compared to September's 474 mm (18.7 in) over 29 days. Interestingly, September has a higher humidity level at 81%, while May's humidity sits at 69%. This indicates that while both months are rainy, May may feel a bit less muggy than September. For further details on May weather specifically, you can check out Golfito weather in May.
In comparing the weather between September and June, both months exhibit warm temperatures, with September showing a minimum of 22°C (72°F) and an average of 25°C (78°F), while June has a slightly lower minimum of 21°C (70°F) and an average of 26°C (79°F). The maximum temperatures are similar, peaking at 30°C (87°F) in September and 31°C (87°F) in June. However, September experiences more precipitation, totaling 474 mm (18.7 in) over 29 days, compared to June's 490 mm (19.3 in) across 30 days. Humidity levels are also slightly lower in September at 81% compared to June's 84%. For more detailed insights into June’s climate, visit Golfito weather in June.
When comparing the weather in September to that in July, both months feature similar temperature ranges, with September having a minimum of 22°C (72°F), an average of 25°C (78°F), and a maximum of 30°C (87°F), while July sees a slightly higher average temperature of 26°C (78°F) and a maximum of 30°C (86°F). However, September experiences significantly higher precipitation, totaling 474 mm (18.7 in) over 29 days, compared to July's 532 mm (21.0 in) over 31 days. This leads to a slightly lower humidity level in September at 81%, compared to July's 85%. For more detailed information on July weather, you can visit Golfito weather in July.
In comparing the weather of September and August, both months experience similar temperature ranges, with September seeing a minimum of 22°C (72°F) and an average of 25°C (78°F), slightly lower than August, which has an average of 26°C (78°F). The maximum temperatures remain consistent, peaking at 30°C (86°F in August and 87°F in September). However, September experiences a notable decrease in precipitation, totaling 474 mm (18.7 in) over 29 days, compared to August's 544 mm (21.4 in) over 30 days. Humidity levels are also similar, with September at 81% and August at 82%. This comparison illustrates that while the temperatures are nearly identical, September is generally less rainy than August. For more details about August weather, visit Golfito weather in August.
In September, the weather is warm with an average temperature of 25°C (78°F) and high humidity at 81%. However, it experiences significant rainfall, totaling 474 mm (18.7 in) over 29 days, which can lead to a rather wet month. In contrast, October maintains a similar average temperature of 25°C (78°F), but sees a slight decrease in minimum temperatures and a max temperature of 30°C (86°F). The precipitation increases to 605 mm (23.8 in) over 30 days, indicating a continuation of the rainy season. For those keen to learn more about the weather conditions, Golfito weather in October offers detailed insights.
In comparing the weather of September and November, both months share an average temperature of around 25°C (77°F) and a min temperature of 22°C (72°F). However, September tends to be slightly warmer with a maximum temperature reaching up to 30°C (87°F), while November's max temperature is a bit cooler at 29°C (85°F). When it comes to precipitation, November is noticeably wetter, receiving 624 mm (24.6 in) compared to September's 474 mm (18.7 in), both spread across 29 days. Humidity levels are quite similar, with September at 81% and November at 80%. For more specific details on the weather in November, you can visit Golfito weather in November.
In September, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (87°F). The month is also characterized by significant rainfall, averaging 474 mm (18.7 in) over 29 days, leading to a humidity level of 81%. In contrast, December offers slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 29°C (84°F). Precipitation decreases to 361 mm (14.2 in) while still occurring across 29 days, resulting in a lower humidity level of 72%. For more detailed insights, check out Golfito weather in December.
In September, Golfito experiences a unique blend of warm temperatures and significant rainfall, setting it apart from other months. With an average temperature around a comfortable 25°C (78°F) and maximum highs reaching 30°C (87°F), visitors can enjoy the humid tropical climate. However, it's also the wettest month, featuring nearly daily rainfall that totals approximately 474 mm (18.7 in), creating a lush and vibrant landscape. This high humidity of 81% combined with extended precipitation days means that September truly showcases Golfito's tropical essence. For a deeper insight into what to expect throughout the year, explore our page on Golfito Climate.