Last updated: August 28, 2025
In September, Con Son, Vietnam experiences a warm tropical climate with temperatures ranging from a pleasant 26°C (78°F) to a maximum of 29°C (85°F), averaging around 28°C (82°F). This month is characterized by significant precipitation, with an impressive 318 mm (12.5 in) of rain spread over 24 days, contributing to the region's lush landscapes. The humidity remains high at 85%, creating a lush and vibrant atmosphere, perfect for experiencing the island's natural beauty and serenity. Whether you’re exploring the sights or simply soaking in the environment, September in Con Son is a blend of warmth and rich, refreshing rains.
In September, Con Son, Vietnam experiences pleasantly warm temperatures, with minimums averaging around 26°C (78°F) and maximums peaking at 29°C (85°F). The overall average for the month holds steady at 28°C (82°F), reflecting a consistent warmth that characterizes the summer transition into autumn. This pattern shows a slight increase compared to the cooler months of earlier in the year, particularly when juxtaposed with January's lower averages. As rain may occasionally sweep through, the humidity can feel pronounced, yet the tropical charm remains inviting, making September an excellent time to explore the island's natural beauty. With such mild figures, visitors can enjoy outdoor adventures while soaking in the stunning landscapes that Con Son has to offer.
September in Con Son, Vietnam marks a significant peak in precipitation, with 318 mm (12.5 in) of rainfall spread over 24 days. This month stands out as the rainiest of the year, closely following August's substantial totals, illustrating a notable trend of increasing precipitation as the monsoon season reaches its maximum intensity. After a steady buildup from the earlier months, including May’s 177 mm (7.0 in) and June’s 223 mm (8.8 in), September’s downpours contribute to a lush landscape, albeit often accompanied by humidity and overcast skies. Following this peak, October continues the trend with 338 mm (13.3 in), gently pulling back in November before settling into drier months toward the year's end. The consistent rainfall reinforces the tropical climate, establishing September as a critical month for both local ecology and agriculture.
In September, Con Son, Vietnam, experiences a notable humidity level of 85%, maintaining the higher end of the spectrum seen throughout the summer months. This mark shows a slight rise compared to previous months, as humidity steadily increased from 83% in July and 85% in August. The trend indicates that as the year progresses, humidity generally climbs, with a gradual increase highlighted by October's expected decrease to 83%. This consistent warmth and moisture create a tropical climate, characteristic of Con Son, making September a vibrant, albeit sticky, month in this beautiful region. As the year heads towards its end, it's clear that the island remains enveloped in a lush blanket of humidity, setting the stage for the approaching rainy season.
In September, Con Son, Vietnam experiences a UV Index of 14, indicating an extreme level of sun exposure with a burn time of just 10 minutes. This trend of high UV readings continues from the previous months, as the indices remained consistently high during the summer, ranging from 13 to 16 earlier in the year. This reflects a notable pattern where the sun's intensity peaks from January through September, with minimal variation, making sun safety crucial for both locals and visitors alike. As you bask in Con Son’s beauty, it's essential to stay informed and protect your skin. For detailed information on UV trends throughout the year, check out the Con Son UV Index.
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September in Con Son, Vietnam, enjoys a delightful average of 298 sunshine hours, making it a wonderful time to bask in the warm glow of the sun. Following the vibrant peak of summer, where sunshine hours hover comfortably in the high 300s, September sees a slight dip, yet still retains a generous amount of daylight. This gradual decrease marks a transition into the cooler months, hinting at the onset of autumn. Interestingly, the sun remains prominent, allowing ample opportunities for outdoor exploration and relaxation before the rainy season unfolds. As the sunlit days of September beckon, visitors can revel in the ideal blend of warmth and serene beauty that Con Son has to offer.
In Con Son, Vietnam, the likelihood of sunny weather takes a noticeable dip in September, with only a 15% chance of sunshine, marking it as one of the cloudiest months of the year. This trend aligns with the overall pattern of decreasing sunlight as the year progresses, particularly evident from the peak in February at 52% down to the lows of late summer and early fall. The transition from the sunnier months of April and May, when the chances hover around 45% and 35% respectively, to the gloomier September reflects the gradual shift towards the rainy season, making this month one of the least likely times to bask in the sun in Con Son.
In September, Con Son, Vietnam enjoys a delightful 12 hours of daylight, mirroring the consistent trend set by the preceding months of June through August. This stable duration signifies a balance between sunlight and twilight as the region transitions from the peak summer months to the cooler autumn days. Prior to September, daylight lengths increase notably in March, reaching their zenith in the mid-year months, before gently tapering off to 11 hours in October. This rhythmic fluctuation not only enhances the charm of Con Son's landscape but also offers ample opportunity for visitors to explore its natural beauty under the vibrant tropical sun.
As September rolls in Con Son, Vietnam, the average wind speed gently settles at 5.5 m/s (12 mph), a slight dip from the prior month but still maintaining a moderate breeze that characterizes the transition into fall. This month marks the tail end of the summer's windier days, which peaked in January with 8.9 m/s (20 mph) before gradually tapering down through the heat of summer. Following the calmness of September, the winds begin to pick up again, with November boasting an increase to 7.4 m/s (17 mph). This rhythmic ebb and flow of the wind highlights not just the seasonal changes but also the dynamic atmosphere of Con Son, where each gust tells a story of the shifting seasons.
Weather in Con Son varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Con Son, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures in Con Son typically range from a minimum of 26°C (78°F) to a maximum of 29°C (85°F), with an average of 28°C (82°F). The month is characterized by high humidity levels at 85% and significant rainfall, totaling 318 mm (12.5 in) over 24 rainy days. In contrast, January offers slightly cooler conditions, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (82°F), and an average temperature of 25°C (78°F). January sees much less precipitation, amounting to only 56 mm (2.2 in) across just 5 days, along with a lower humidity of 77%. For a detailed look at what to expect, check out Con Son weather in January.
In September, the weather is notably warmer and significantly wetter, with daily temperatures ranging from a minimum of 26°C (78°F) to a maximum of 29°C (85°F). This month experiences considerable rainfall, averaging 318 mm (12.5 in) over 24 days, along with high humidity levels of about 85%. In contrast, February is much drier and milder, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 27°C (81°F). Rainfall is minimal in February, totaling just 7 mm (0.3 in) across only 1 day, and the humidity decreases to 75%. For a more detailed look at February weather, check out Con Son weather in February.
When comparing the weather in September and March, notable differences emerge. September experiences higher temperatures, with minimums around 26°C (78°F) and averages reaching 28°C (82°F), while March is slightly cooler with a minimum of 24°C (76°F) and an average of 26°C (80°F). Precipitation levels are drastically different as well; September sees 318 mm (12.5 in) of rain across 24 days, creating a notably humid environment with 85% humidity. In contrast, March enjoys much drier conditions, with only 17 mm (0.7 in) of rain over just 2 days and a humidity level of 76%. For more details on March weather, you can visit Con Son weather in March.
In comparing the weather patterns of September and April, both months exhibit similar average temperatures, with September ranging from a minimum of 26°C (78°F) to a maximum of 29°C (85°F) and April displaying slightly warmer conditions with a minimum of 25°C (78°F) and a maximum of 30°C (86°F). However, September is characterized by significantly higher precipitation levels, receiving 318 mm (12.5 in) over 24 days, while April experiences much less rain, totaling just 55 mm (2.2 in) across 10 days. Additionally, the humidity in September (85%) is notably higher than in April (78%), contributing to a more oppressive atmosphere during the former month. For more detailed insights, you can check Con Son weather in April.
In comparing the weather between September and May, both months feature similar minimum temperatures, averaging around 26°C (79°F). However, September tends to be slightly cooler on average, with a max temperature of 29°C (85°F), while May peaks at 30°C (87°F). Precipitation is significantly higher in September, totaling 318 mm (12.5 in) over 24 days, compared to May's 177 mm (7.0 in) over 22 days. Additionally, humidity levels are slightly elevated in September at 85%, compared to 80% in May, making September feel more humid overall. For a detailed look at the weather in May, you can visit Con Son weather in May.
When comparing the weather in September and June, both months exhibit similar average temperatures, with September showing a slight increase in maximum temperature at 29°C (85°F) compared to June's 30°C (87°F). However, September is characterized by significantly higher precipitation, totaling 318 mm (12.5 in) over 24 days, which contrasts with June's 223 mm (8.8 in) over 25 days. Additionally, September has a higher humidity level at 85%, just above June's 82%. For more detailed information, you can check Con Son weather in June.
In comparing the weather of September and July, we find that both months share similar temperature ranges, with minimums of 26°C (78°F), average temperatures of 28°C (82°F), and maximums of 29°C (85°F). However, September is notably wetter, receiving 318 mm (12.5 in) of precipitation over 24 days, compared to July's 229 mm (9.0 in) over 27 days. Additionally, humidity levels are slightly higher in September at 85% versus July's 83%. For a more detailed look at July weather specifics, you can check out Con Son weather in July.
In comparing the weather between August and September, we see that both months maintain a similar temperature profile, with minimums at 25°C (78°F) and 26°C (78°F) respectively, and average highs around 28°C (82°F) to 29°C (85°F). However, September experiences significantly more rainfall, with 318 mm (12.5 in) of precipitation over 24 days, compared to August's 271 mm (10.7 in) spread over 28 days. Despite the increased rain in September, the humidity remains consistent at 85% for both months. For a more detailed overview, you can check Con Son weather in August.
September and October exhibit similar temperature ranges, with September holding a slight edge at an average of 28°C (82°F) compared to October's 27°C (81°F). Both months experience high humidity levels, though September's 85% is marginally higher than October's 83%. Precipitation increases from 318 mm (12.5 in) in September to 338 mm (13.3 in) in October, along with an uptick in rainy days from 24 to 27. For more detailed information about October weather, you can visit Con Son weather in October.
September and November present similar weather patterns, though there are some subtle differences. September tends to be slightly warmer, with average temperatures reaching 28°C (82°F) compared to November's 27°C (81°F). However, November maintains a comparable high of 29°C (84°F), making both months feel quite warm overall. Precipitation is slightly less in November, with 306 mm (12.1 in) over 22 days, compared to September's 318 mm (12.5 in) spread over 24 days. Humidity levels are also quite similar, with November being marginally higher at 86% versus September’s 85%. For detailed insights into November's weather conditions, you can visit Con Son weather in November.
In September, the weather is notably warmer with average temperatures ranging from a minimum of 26°C (78°F) to a maximum of 29°C (85°F), making it feel quite tropical. The month also experiences heavy rainfall, totaling 318 mm (12.5 in) over 24 days, resulting in high humidity levels of 85%. In contrast, December offers slightly cooler temperatures, with a minimum of 22°C (73°F) and a maximum of 28°C (82°F), along with significantly less precipitation at 136 mm (5.3 in) over just 12 days. Despite the reduced rainfall, the humidity remains consistent at 85%. For more details on the weather during this month, visit Con Son weather in December.
As September rolls in, Con Son experiences a shift in weather characterized by warm temperatures and high humidity, making it distinct from other months. With an average temperature of 28°C (82°F), the island remains comfortably warm, but the elevated precipitation—spanning nearly all days of the month—brings a lush vibrancy to the landscape. This increased rainfall, totaling 318 mm, sets September apart, contributing to the island's rich natural beauty, even as the humidity hovers around 85%. Visitors can expect a mix of sunshine and showers, creating a unique tropical atmosphere. For those looking to explore more about the weather patterns throughout the year, check out Con Son Climate.