Last updated: August 28, 2025
In September, Phu Quoc, Vietnam experiences a tropical climate characterized by mild temperatures, with daily highs reaching up to 30°C (86°F) and average lows around 25°C (77°F). The average temperature stands at a comfortable 27°C (81°F), creating an inviting atmosphere for visitors. However, this month also brings significant precipitation, totaling 396 mm (15.6 in) over approximately 25 days, contributing to the region's lush greenery. With a high humidity level of 87%, travelers should be prepared for a humid experience, making it essential to stay hydrated and plan indoor activities when necessary.
In September, Phu Quoc enjoys a pleasant tropical climate, with temperatures showcasing a delightful consistency. The minimum temperature hovers around 25°C (77°F), while the average remains comfortably at 27°C (81°F). As the days progress, visitors can expect a maximum of 30°C (86°F), perfect for basking on the beach or exploring the island’s lush landscapes. This month reflects a gradual transition into the cooler seasons, mirroring trends of previous months where temperatures have remained relatively stable. With only a slight drop in both minimum and maximum temperatures from the summer peak, September remains an inviting time to experience the island’s radiant beauty without the sweltering heat.
September in Phu Quoc, Vietnam, continues the trend of significant rainfall characteristic of the monsoon season, accumulating 396 mm (15.6 in) over approximately 25 days. This amount, while slightly lower than the peaks seen in July (422 mm) and August (435 mm), still represents a substantial level of precipitation and contributes to the lush, vibrant landscapes of the island. As the wet season progresses, visitors can expect humid conditions interspersed with torrential downpours, making September a time of dramatic weather and abundant natural beauty. The consistent rainfall patterns leading into October suggest that while the intensity may decrease, the overall climate remains rich and verdant, ideal for those who enjoy a tropical atmosphere.
In September, humidity in Phu Quoc, Vietnam typically sits at a notable 87%, showcasing a slight decrease from the peak of 88% in August. This month marks a transition phase as the summer's peak humidity begins to wan while still enveloping the island in a tropical embrace. From a low of 61% in the earlier months of the year, humidity gradually rises, particularly during the rainy season from May through August, hitting its peak in mid-summer. As October approaches, humidity starts to taper down to 84%, signaling the shift towards drier months ahead. This trend highlights Phu Quoc's characteristic monsoon climate, where lush landscapes thrive under the moist, warm air, making September a great time for vibrant, green scenery.
In September, Phu Quoc, Vietnam, continues to bask under an extreme UV Index of 14, maintaining the high standards set by the preceding months. This means that despite nearing the end of the summer, sun exposure remains quite intense, with a burn time of just 10 minutes for unprotected skin. The trend throughout the year typically reflects sustained extreme UV levels, particularly from March to May, where numbers peak at 15. As we transition into the latter part of the year, the UV Index begins to slightly dip, reaching 13 in October and culminating in 11 by December. It's crucial for visitors and residents alike to stay vigilant, protecting their skin while enjoying the vibrant sun on this beautiful island. For more details, check the Phu Quoc UV Index.
UV Risk Categories
As September rolls into Phu Quoc, Vietnam, the island basks in 264 hours of glorious sunshine, marking a slight dip from the vibrant summer months but still offering plenty of warmth for sun-seekers. Following the peak of 332 hours in March, sunshine levels gradually taper off, with April and May maintaining a healthy glow at around 314 and 311 hours, respectively. This trend continues into the lush wet season, where June and July see a reduction to 275 and 289 hours, showcasing the island's shift towards a more refreshing tropical climate. August holds steady with 288 hours, setting the stage for September's inviting sunshine. While the days may be getting shorter, the consistency of sunlight ensures that Phu Quoc remains a dazzling haven, perfect for beach-goers and adventure lovers alike.
In Phu Quoc, Vietnam, the likelihood of enjoying sunny weather takes a notable dip in September, with only a 9% chance of sunshine. This marks one of the lowest points in the year, as the island transitions through its wet season. The trend shows a steady decline in sunny days from June onward, culminating in September's minimal brightness. As the summer months retreat, visitors can expect increased cloud cover and rainfall, reflecting a shift from the pleasantly sunny weather seen earlier in the year. For those planning a trip, September might not be the ideal time to soak up the sun in this tropical paradise.
In Phu Quoc, Vietnam, the month of September enjoys an impressive 12 hours of daylight, maintaining a consistent pattern observed throughout the summer months. From March to September, the island experiences a delightful stretch of 12 hours daily, creating perfect conditions for sun-soaked adventures and leisurely beach days. Following this peak, daylight begins to taper off as autumn approaches, with October through December showcasing a gradual reduction back to 11 hours. This trend highlights Phu Quoc's affinity for long, bright days during the warmer months, making it an ideal destination for sun lovers seeking to maximize their time outdoors.
As September unfolds in Phu Quoc, Vietnam, the island experiences a gentle average wind speed of 6.0 m/s (13 mph), offering a pleasant breeze that complements its tropical charm. Following a peak in July, where winds reached a lively 7.0 m/s (16 mph), September marks a slight decrease but maintains a robust flow, continuing the trend set in late summer. This month retains the signature warmth of the region while providing refreshing gusts that beckon adventurers and beachgoers alike. As the winds gradually ease into the later months, the island's enchanting atmosphere remains undiminished, weaving a captivating tapestry of sun, sea, and sky.
Weather in Phu Quoc varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Phu Quoc, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly wetter and more humid compared to January. With temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F), September experiences an average temperature of 27°C (81°F) alongside a staggering 396 mm (15.6 in) of rainfall spread over 25 days, resulting in a humidity level of 87%. In contrast, January offers a similar temperature range, with a minimum of 23°C (73°F) and the same maximum of 30°C (86°F), but enjoys a much drier climate with only 44 mm (1.7 in) of precipitation over just 10 days and a lower humidity level of 62%. For more details on January weather in Phu Quoc, you can visit Phu Quoc weather in January.
In September, the weather is marked by higher humidity and significantly more rainfall, with an average temperature of 27°C (81°F) and precipitation reaching 396 mm (15.6 in) over 25 days. This leads to a humid climate, with humidity levels soaring to 87%. In contrast, February offers a similar average temperature of 27°C (81°F), but with a much drier atmosphere, as it experiences only 39 mm (1.5 in) of rain spread over just 10 days and a humidity level of 61%. For more detailed information, you can visit Phu Quoc weather in February.
In September, the weather tends to be warm and humid, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F). This month experiences significant rainfall, with 396 mm (15.6 in) over 25 days, contributing to a high humidity level of 87%.
Conversely, March offers slightly higher average temperatures, peaking at 31°C (88°F), yet it is notably drier, with only 56 mm (2.2 in) of precipitation across 17 days and a much lower humidity of 61%. For more specific insights about the weather in March, you can visit Phu Quoc weather in March.
This contrast highlights the shift from the more humid and rainy September to the warmer and drier conditions of March.
September and April exhibit notable differences in weather conditions. September tends to be slightly cooler, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F). However, it also experiences a significant amount of rainfall, totaling 396 mm (15.6 in) across 25 days, accompanied by high humidity levels at 87%. In contrast, April is warmer, with average temperatures reaching a minimum of 25°C (78°F) and a maximum of 31°C (88°F). Additionally, April sees much less rainfall, with only 133 mm (5.2 in) over 21 days and lower humidity at 67%. For more details, you can check out Phu Quoc weather in April.
When comparing the weather in September and May, both months feature similar minimum temperatures, averaging around 25°C (77°F). However, May tends to be slightly warmer overall, with an average temperature of 28°C (83°F) compared to September's average of 27°C (81°F). Additionally, May experiences marginally higher maximum temperatures, reaching up to 31°C (88°F) versus September's peak of 30°C (86°F). Precipitation is another key difference; September sees considerably more rainfall, totaling 396 mm (15.6 in) over 25 days, while May has a lower precipitation level of 314 mm (12.3 in) over 29 days. Interestingly, May has lower humidity at 78%, compared to September's higher humidity level of 87%. For more information on the specifics of May weather, you can check Phu Quoc weather in May.
When comparing the weather in September and June, both months exhibit similar temperature ranges, with minimums around 25°C (77°F) and maximums peaking at 30°C (86°F). However, September tends to be slightly wetter, receiving 396 mm (15.6 in) of precipitation over 25 days, compared to June's 334 mm (13.1 in) during the same number of days. Humidity levels are also marginally higher in September at 87%, compared to 84% in June. For more detailed insights, check out Phu Quoc weather in June.
In comparing the weather between September and July, we can see some notable similarities and differences. September features a minimum temperature of 25°C (77°F) with an average of 27°C (81°F) and a maximum of 30°C (86°F), while July has slightly higher averages, with a minimum of 26°C (78°F), an average of 28°C (82°F), and a maximum of 29°C (85°F). Both months are marked by high humidity, hovering around 87% in September and 86% in July. Precipitation levels are also comparable, with September recording 396 mm (15.6 in) over 25 days and July experiencing slightly more rain at 422 mm (16.6 in) across 28 days. For more detailed insights, you can check the link Phu Quoc weather in July.
In comparing the weather between August and September, both months maintain similar average temperatures, with September offering a slight decrease in minimum and maximum temperatures—25°C (77°F) to 30°C (86°F) compared to August’s 26°C (78°F) to 29°C (85°F). However, September experiences higher precipitation, totaling 396 mm (15.6 in) over 25 days, while August sees 435 mm (17.1 in) over 28 days. Humidity levels remain quite comparable, with September at 87% and August at 88%. For more detailed insights into the weather during this period, you can check out Phu Quoc weather in August.
In both September and October, temperatures remain consistent, with a minimum of 25°C (77°F), an average of 27°C (81°F), and a maximum of 30°C (86°F to 87°F). However, October experiences a slight decrease in total precipitation, with 381 mm (15.0 in) compared to September's 396 mm (15.6 in), despite having a higher number of rainy days at 28. Humidity also shows a subtle decline from 87% in September to 84% in October, indicating a marginally more comfortable atmosphere. For more details, check out Phu Quoc weather in October.
In September, the weather is characterized by a warm and humid atmosphere, with average temperatures around 27°C (81°F) and high humidity at 87%. This month sees significant rainfall, totaling 396 mm (15.6 in) over 25 days, making it one of the wetter months. In contrast, November offers slightly warmer average temperatures of 28°C (82°F), though it remains pleasant with maximums reaching 30°C (87°F). Precipitation drops dramatically to 139 mm (5.5 in) over 19 days, and humidity also decreases slightly to 84%. This shift makes November a more favorable time for outdoor activities. For more specific details, you can check Phu Quoc weather in November.
September and December share similar average temperatures in Phu Quoc, with both months experiencing averages around 27°C (81°F) and maximums reaching up to 30°C (86°F). However, September is significantly wetter, receiving 396 mm (15.6 in) of precipitation over 25 days, while December sees a much drier climate with only 75 mm (3.0 in) of rain across just 11 days. Additionally, the humidity in September is notably higher at 87%, compared to December's 76%, making the latter feel more comfortable for outdoor activities. For more detailed information, you can refer to Phu Quoc weather in December.
As September unfolds in Phu Quoc, visitors can expect a distinct shift in weather patterns compared to other months. With temperatures averaging around 27°C (81°F) and maximum highs reaching 30°C (86°F), the warmth remains inviting. However, this month brings a notable increase in precipitation, with about 396 mm of rain spread over 25 days, contributing to the island's lush landscape. The high humidity levels at 87% create a tropical atmosphere, perfect for those who enjoy the vibrant, yet lush environment that September offers. For more details on the climate nuances throughout the year, check out Phu Quoc Climate.