Last updated: August 21, 2025
In September, Copan Ruinas experiences warm and humid conditions, with daytime temperatures reaching a maximum of 32°C (90°F) and an average of 23°C (73°F). Nighttime lows drop to a comfortable 17°C (63°F), creating a pleasant atmosphere for visitors. However, be prepared for substantial rainfall, as 280 mm (11.0 in) of precipitation typically falls across 27 days during the month. The humidity level hovers around 71%, adding to the tropical feel of this historical destination. Whether exploring ancient ruins or enjoying the lush landscapes, understanding the weather is key to making the most of your experience in Copan Ruinas.
In September, Copan Ruinas experiences a mild and pleasant climate, with temperatures reflecting a transition into the latter part of the year. The minimum temperature hovers around 17°C (63°F), while daytime highs reach up to 32°C (90°F), making it an ideal time for exploration. The average temperature stabilizes at 23°C (73°F), similar to the previous months, which suggests a comfortable atmosphere for visitors. As the rainy season continues, humidity levels might rise, but the overall warmth creates a delightful backdrop for discovering the ancient ruins and lush landscapes. This balance of temperatures encourages both outdoor adventures and opportunities for relaxation, making September a lovely month to experience the charm of Copan Ruinas.
September in Copan Ruinas, Honduras, marks a peak in the region's rainy season, showcasing a notable increase in precipitation. With 280 mm (11.0 in) of rainfall over 27 days, this month is part of a pronounced wet stretch that begins in May and continues into October. The intensity of the rains is palpable, as September's figures follow August's substantial 233 mm (9.2 in), creating a lush, green landscape. This trend of heavy rainfall not only enriches the environment but also underscores the region's climatic patterns, where rainfall escalates toward the end of the summer, demonstrating a vibrant interplay between the seasons. As the wettest month of the year, September is a pivotal time for agriculture and natural replenishment in this enchanting part of Honduras.
September in Copan Ruinas, Honduras, marks a noteworthy transition in humidity levels, as the month experiences an average of 71% humidity. This is a slight increase from the drier summer months of May through August, which all see humidity levels dip to their lowest, with May at just 51%. Following the more humid months of January and February, which reach peaks of 80% and 72% respectively, September shows a gradual rebound as the wet season approaches its climax. The shifting patterns highlight the striking atmospheric variations throughout the year, providing a unique backdrop for visitors to explore the ancient ruins amidst the lush, verdant landscape brought on by the returning humidity.
As September rolls into Copan Ruinas, Honduras, the UV Index remains notable at 13, indicating an extreme exposure category, with a swift burn time of just 10 minutes. This trend reflects the region's unwavering intensity in sunlight, as the UV Index has been consistently high throughout the year, peaking at 15 in April. Even as the rainy season approaches, locals and visitors alike should stay vigilant, donning protective clothing and ample sunscreen to mitigate the risks of sun exposure. For those planning outdoor adventures, being aware of the UV Index is crucial; for more details, check out the Copan Ruinas UV Index.
UV Risk Categories
As September unfolds in Copan Ruinas, Honduras, the region basks in an impressive 289 hours of sunlight, reflecting a slight dip from the vibrant summer months. This decline subtly continues the trend from the peak sunshine of March at 315 hours and April at 309 hours. However, September still shines brightly compared to the earlier months of the year, showcasing a warm embrace of daylight that invites exploration of the ancient ruins and rich cultural heritage. The gradual descent into autumn hints at a transition, yet sunshine remains a cherished companion, ensuring that visitors can enjoy the stunning landscapes bathed in golden light.
In September, Copan Ruinas experiences a 21% chance of sunny weather, which marks a slight increase from the notably rainy months of June and August, where the chances of sunshine drop to 12% and 14%, respectively. This upward trend continues through October, offering a more promising 29% chance for clearer skies as the rainy season gradually subsides. However, September still falls behind the sunnier months of February and March, which boast chances of 49% and 42%. If you're planning a visit, be prepared for occasional rain while holding onto hope for those beautiful sunshine-filled moments in this stunning region of Honduras.
September in Copan Ruinas, Honduras, continues the trend of prolonged daylight that began earlier in the year. With 12 hours of daylight, this month shares the robust daylight duration of the previous several months, reflecting the region's consistent exposure to the sun during the latter part of the year. After enjoying extended hours of sunshine from March through September, the days begin to shorten in October, bringing a return to 11 hours of daylight. This gradual transition marks the shift towards the cooler months, while the steady sunlight throughout September allows for ample time to explore the majestic ancient ruins and lush landscapes of this vibrant region.
As September unfolds in Copan Ruinas, Honduras, the gentle breeze takes on a notably softer cadence, with average wind speeds dropping to 1.4 m/s (3 mph). This marks a continuation of a downward trend that began mid-year, after the more invigorating winds of earlier months. From May onward, the gusts have steadily declined, reaching their lowest point in September. As the lush landscapes transition into the heart of the rainy season, this tranquil atmosphere invites visitors to experience the ancient ruins with a serene backdrop, making it a perfect time for exploration and reflection amidst the fading summer warmth. Just as the rich history of Copan captivates the senses, the soothing September winds create an ambiance that complements its majestic beauty.
Weather in Copan Ruinas varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Copan Ruinas, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present a contrasting weather experience. In September, temperatures range from a minimum of 17°C (63°F) to a peak of 32°C (90°F), with an average of 23°C (73°F). This month is notably wetter, receiving 280 mm (11.0 in) of precipitation over 27 days, coupled with a humidity level of 71%. In contrast, January's climate is milder, featuring lower temperatures that span from a minimum of 11°C (51°F) to a maximum of 30°C (86°F), with an average of 19°C (66°F). Precipitation drops significantly to 60 mm (2.4 in) over just 14 days, and humidity increases slightly to 80%. For more specific details on the January weather, you can check Copan Ruinas weather in January.
September and February bring distinct weather patterns, showcasing the seasonal variation in climate. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 32°C (90°F), with an average of 23°C (73°F). This month is notable for its high rainfall, accumulating 280 mm (11.0 in) over 27 days, contributing to a humidity level of 71%. In contrast, February has cooler temperatures, with a minimum of 11°C (51°F) and an average of 20°C (69°F), while still reaching up to 32°C (90°F). Precipitation significantly decreases to just 41 mm (1.6 in) over 12 days, resulting in a slightly higher humidity of 72%. For more insights on weather conditions during February, you can visit Copan Ruinas weather in February.
September and March present contrasting weather characteristics. September tends to be warmer, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 32°C (90°F) and an average of 23°C (73°F). However, it also brings significantly more rainfall, accumulating 280 mm (11.0 in) over 27 days, leading to a higher humidity level of 71%. In contrast, March features milder temperatures, with a minimum of 11°C (53°F) and an average of 21°C (70°F), reaching a maximum of 33°C (91°F). It experiences much less precipitation at 39 mm (1.6 in) across only 12 days and a lower humidity level of 61%. For more details specific to March, you can check Copan Ruinas weather in March.
When comparing the weather in September and April, notable differences emerge. September typically experiences higher humidity at 71%, with average temperatures fluctuating from a minimum of 17°C (63°F) to a maximum of 32°C (90°F). This month is also marked by significant rainfall, averaging 280 mm (11.0 in) over 27 days. In contrast, April boasts a drier climate, with only 40 mm (1.6 in) of precipitation occurring over 10 days, and a notable decrease in humidity to 53%. Temperatures in April range from a minimum of 12°C (55°F) to a much warmer maximum of 35°C (96°F), making it a hotter period overall. For more details on the weather during this month, you can visit Copan Ruinas weather in April.
In comparing the weather between September and May, we see notable differences in temperature and precipitation. September typically experiences a minimum temperature of 17°C (63°F) and averages around 23°C (73°F), peaking at 32°C (90°F). This month also brings significant rainfall with 280 mm (11.0 in) spread over 27 days, contributing to a higher humidity level of 71%. In contrast, May boasts slightly cooler minimum temperatures at 15°C (59°F) with an average of 24°C (75°F) and a maximum of 35°C (95°F). Additionally, May sees less rainfall, accumulating 193 mm (7.6 in) over 24 days, and a more comfortable humidity level of 51%. For those interested in more specifics about May conditions, you can check out Copan Ruinas weather in May.
In comparing the weather between September and June, both months exhibit similar temperature ranges, with minimums around 17°C (63°F) and average temperatures averaging 23°C (74°F in June, 73°F in September). However, June tends to be slightly warmer at its maximum, reaching up to 33°C (91°F) compared to September's 32°C (90°F). Precipitation is notably higher in September, accumulating 280 mm (11.0 in) over 27 days, while June sees a bit more rainfall at 313 mm (12.3 in) spread across 28 days. The humidity levels also differ significantly, with September averaging 71%, making it feel more humid than June's 52%. For more detailed information, you can check out the Copan Ruinas weather in June.
In comparing the weather of September and July, we see some notable differences. September tends to be slightly warmer, with average temperatures reaching 23°C (73°F) and a maximum of 32°C (90°F), compared to July's average of 22°C (73°F) and a maximum of 31°C (88°F). However, September experiences significantly higher precipitation, with 280 mm (11.0 in) recorded over the month, compared to July's 173 mm (6.8 in). Both months have the same number of rainy days (27), but September's higher humidity at 71% contrasts with July's lower level of 58%. For a more detailed look at the July conditions, you can visit Copan Ruinas weather in July.
In comparing the weather of September and August, both months exhibit similar temperature ranges, with September featuring a minimum of 17°C (63°F), an average of 23°C (73°F), and a maximum of 32°C (90°F), while August has a slightly lower maximum at 31°C (88°F). However, September is marked by a significant increase in precipitation, receiving 280 mm (11.0 in) over 27 days compared to August's 233 mm (9.2 in) across 26 days, leading to a more humid atmosphere of 71% in September versus 63% in August. For more detailed information about the weather conditions in August, you can refer to Copan Ruinas weather in August.
In comparing the weather between September and October, we note a slight decrease in average temperature, with September showcasing a range from a minimum of 17°C (63°F) to a maximum of 32°C (90°F), while October sees temperatures averaging a bit cooler, with a minimum of 15°C (59°F) and a maximum of 31°C (88°F). Precipitation also declines from 280 mm (11.0 in) over 27 days in September to 245 mm (9.6 in) across 26 days in October. However, October experiences a higher humidity level of 79% compared to September's 71%. For more details on local conditions, you can check the Copan Ruinas weather in October.
September typically experiences warmer temperatures, with average highs reaching 32°C (90°F) compared to November's maximum of 29°C (85°F). However, September is also characterized by significantly higher precipitation, totaling 280 mm (11.0 in) over 27 days, while November sees only 121 mm (4.8 in) across 18 days. Humidity levels are slightly higher in November at 79%, compared to 71% in September, adding a touch of mugginess to the cooler autumn air. For those considering travel during this time, more detailed information can be found here: Copan Ruinas weather in November.
In September, the weather is notably warmer and more humid, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 32°C (90°F). This month is also characterized by significant rainfall, totaling 280 mm (11.0 in) over 27 days, contributing to a humidity level of 71%. In contrast, December experiences cooler temperatures, with a minimum of 11°C (52°F) and an average maximum of 30°C (86°F). Rainfall sharply decreases to 59 mm (2.3 in) over only 16 days, leading to a slightly higher humidity of 74%. This noticeable shift from the wet and warm conditions of September to the cooler and drier climate of December makes for a marked difference in weather patterns. For more details on the weather specific to December, feel free to check Copan Ruinas weather in December.
September in Copan Ruinas ushers in a distinctly wetter climate compared to other months, characterized by high humidity and frequent rain. With temperatures peaking at 32°C, the days can feel quite warm, but the strong precipitation—averaging 280 mm and spread over almost all the month—creates a lush, vibrant landscape. Unlike the dryer seasons, visitors should prepare for increased cloud cover and expect a refreshing atmosphere that's perfect for exploring the ruins. For more details on what to expect throughout the year, visit Copan Ruinas Climate.