Last updated: August 28, 2025
September in Phan Thiet, Vietnam offers a blend of tropical warmth and substantial rainfall, with temperatures reaching up to 33°C (91°F) during the day and dropping to a pleasant 23°C (74°F) at night. The average temperature hovers around 27°C (80°F), providing a comfortable backdrop for visitors. However, this month is characterized by high humidity levels at 87% and significant precipitation, with 245 mm (9.6 in) of rain falling over approximately 26 days. This combination of heat and humidity creates a lush, vibrant landscape, perfect for those who appreciate the beauty of a tropical climate, though travelers should be prepared for frequent rain showers.
In September, Phan Thiet, Vietnam, continues to bask in the warm embrace of late summer, with temperatures showing a pleasant consistency. During this month, the minimum temperature hovers around 23°C (74°F), while the average settles at a comfortable 27°C (80°F). The peaks reach up to about 33°C (91°F), mirroring the warmth observed from the previous months. This slight decline in average temperature from the 34°C (93°F) recorded in April through August signals the slow transition toward the cooler months while still preserving the tropical charm that draws visitors to this coastal haven. As September unfolds, it becomes an ideal time to enjoy the beach, soak in the sun, and revel in the vibrant atmosphere before the cooler season sweeps in.
September marks a significant peak in precipitation for Phan Thiet, Vietnam, recording 245 mm (9.6 in) of rainfall over 26 days. This trend of increasing rainfall begins in the preceding months, with August also experiencing 225 mm (8.9 in), as the region transitions deeper into its wet season. The cumulative effect of this persistent rain is evident when compared to the meager totals seen earlier in the year, such as January's mere 33 mm (1.3 in). As September approaches, the intensity and frequency of rain not only heighten but also set the stage for October, which continues the upward trend with an anticipated 272 mm (10.7 in). This pattern underscores a gradual increase in moisture, reflecting the robust climatic changes characterizing the late monsoon period in this coastal locale.
In September, Phan Thiet, Vietnam, experiences a notable humidity level of 87%, maintaining the peak conditions established in August. This month typically marks the end of the summer season, where humidity remains consistently high, reflecting a gradual rise from the drier months of early spring. The trend shows a steady increase in moisture from January's 82%, reaching its zenith in the late summer months, particularly in July and August. As the year progresses into the wet season, humidity remains elevated, peaking in November at 89%, creating a tropical atmosphere that envelops the coastal city. The high humidity, coupled with warm temperatures, contributes to Phan Thiet’s lush landscapes and vibrant marine life, making it an ideal destination for those who appreciate the richness of tropical climates.
In Phan Thiet, Vietnam, September maintains a high UV Index of 14, indicating extreme exposure levels, similar to the peak summer months. Throughout the year, Phan Thiet experiences intense UV radiation, with values consistently ranging from 11 to 16 from January to August. This trend continues into the fall, as September's index mirrors that of July, emphasizing the region's persistent sun intensity. As a result, the recommended burn time remains a brief 10 minutes, underscoring the importance of sun protection during this time. For those looking to plan their visits, understanding these trends is crucial. To learn more about the UV Index specifics, check out Phan Thiet UV Index.
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As September unfolds in Phan Thiet, Vietnam, the region basks in an impressive 282 hours of sunshine. While this marks a slight dip from the vibrant summer peak of August's 305 hours, it still offers plenty of bright days for beach enthusiasts and adventure seekers. The weather begins to transition gently, gradually paving the way to a cooler October, which brings 271 hours of sunlight. Notably, the late summer months reveal a trend of consistently abundant sunshine, with March leading the pack with 326 hours. This gradual decline from September onward suggests a subtle shift as the year progresses—though, with an average of over 250 sunshine hours across the year, Phan Thiet remains a sun-kissed haven for travelers seeking warmth and light even as the seasons change.
In Phan Thiet, Vietnam, September marks a notable dip in the likelihood of sunny weather, with only an 11% chance of sun. This trend is part of a larger pattern observed through the year, where the peak sunny months occur earlier, particularly in March at 63% and February at 48%. As the rainy season transitions in the summer months, the chances of clear skies plummet, hitting their lows in July and August as well. Following this trend, visitors can expect a significant variance, making early fall a time where sunshine is scarce, encouraging beachgoers to consider alternate months for their ideal sun-soaked getaway.
In Phan Thiet, Vietnam, the daylight duration remains consistent throughout September, offering an inviting 12 hours of sunshine each day. This trend of relatively stable daylight hours is evident from March through September, where the region enjoys this generous amount of light, making it an ideal time for outdoor activities and exploration. As September transitions into October, the daylight begins to taper off, reverting to 11 hours as the year moves towards its end. This gradual shift showcases the region's remarkable ability to maintain ample daylight, promoting vibrant local life and captivating sunsets.
In September, Phan Thiet experiences a gentle breeze with an average wind speed of 2.1 m/s (5 mph), mirroring the calmer winds of April and May. This marks a slight dip from the more spirited gusts of the preceding months, notably July, which enjoys an average of 3.1 m/s (7 mph). As the summer transitions into the fall, the consistent wind patterns suggest a serene climate ideal for both relaxation and exploration. The overall trend throughout the year shows a peak in wind speeds during the mid-summer months, while the latter part of the year, including September, offers a more subdued yet pleasant atmosphere perfect for enjoying Phan Thiet's stunning coastal scenery.
Weather in Phan Thiet varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Phan Thiet, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January showcase notable differences in weather patterns. September typically experiences warmer temperatures, with an average of 27°C (80°F), while January offers a cooler average of 25°C (78°F). Rainfall is significant in September, accumulating around 245 mm (9.6 in) over 26 days, contrasting sharply with January's much drier climate, which sees only 33 mm (1.3 in) of precipitation across just 3 days. Additionally, while humidity levels remain high in both months, September's 87% is slightly higher than January's 82%. For a detailed view of January weather, you can visit Phan Thiet weather in January.
In comparing the weather between September and February, September experiences significantly warmer temperatures with a minimum of 23°C (74°F), averaging 27°C (80°F), and peaking at 33°C (91°F). The month is characterized by high humidity at 87% and substantial rainfall, totaling 245 mm (9.6 in) over 26 days. In contrast, February presents a milder climate, with temperatures ranging from a minimum of 18°C (65°F) to an average of 25°C (78°F), and a maximum of 32°C (90°F). Precipitation drops dramatically in February, with only 13 mm (0.5 in) occurring over just 2 days, and humidity is slightly lower at 79%. For a more detailed look at the weather conditions during February, please visit Phan Thiet weather in February.
September and March present quite different weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 33°C (91°F), with an average of 27°C (80°F). This month is characterized by high humidity at 87% and significant rainfall, totaling 245 mm (9.6 in) over 26 rainy days. In contrast, March features slightly cooler temperatures, with a minimum of 21°C (69°F) and an average of 26°C (80°F), reaching up to 33°C (92°F). The atmosphere is much drier, with only 18 mm (0.7 in) of precipitation over just 3 days, and lower humidity at 78%. For more specifics about March weather, you can check Phan Thiet weather in March.
In comparing the weather between September and April, we find that September tends to be slightly warmer, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 33°C (91°F). This month is characterized by significant rainfall, experiencing 245 mm (9.6 in) of precipitation over 26 days, accompanied by high humidity levels averaging 87%. In contrast, April sees a similar average temperature of 27°C (82°F), but with slightly higher maximums at 34°C (93°F). Precipitation drops dramatically to 62 mm (2.4 in) over just 13 days, and humidity is lower at 76%. For those interested in more details, you can find additional information at Phan Thiet weather in April.
In comparing the weather of September and May, we see that both months maintain warm temperatures, but with some differences. September typically has a minimum temperature of 23°C (74°F) and averages around 27°C (80°F), peaking at 33°C (91°F). In contrast, May starts slightly warmer, with a minimum of 24°C (75°F), an average of 28°C (82°F), and a maximum of 34°C (93°F). Precipitation also varies, with September experiencing heavier rainfall at 245 mm (9.6 in) over 26 days, compared to May's 176 mm (6.9 in) across 24 days. Additionally, September's humidity is higher at 87%, while May sees a more comfortable 78%. For more detailed insights into May weather, you can explore Phan Thiet weather in May.
In comparing the weather of September and June, we observe that both months have a similar minimum temperature of 23°C (74°F), but June tends to be slightly warmer overall, with an average temperature of 28°C (82°F) compared to September's 27°C (80°F). The maximum temperatures are also similar, with June reaching 34°C (93°F) and September peaking at 33°C (91°F). However, September is characterized by significantly higher rainfall, with 245 mm (9.6 in) falling over 26 days, compared to June's 186 mm (7.3 in) over 24 days. Despite the rainy conditions in September, both months maintain high humidity levels, with September at 87% and June at 84%. For more details on June weather conditions, you can check Phan Thiet weather in June.
In comparing the weather between September and July, both months exhibit similar temperature ranges, with minimums around 23°C (74°F), averages near 27°C (80°F), and maximums of 33°C (91°F) in September and 33°C (92°F) in July. However, September tends to be wetter, receiving 245 mm (9.6 in) of precipitation over 26 days compared to July's 195 mm (7.7 in) over 28 days. Humidity levels remain consistent, with September registering at 87% and July slightly lower at 86%. For more detailed weather information specific to July, you can refer to Phan Thiet weather in July.
In comparing the weather between September and August, both months exhibit a similar warm climate, with minimum temperatures consistently at 23°C (74°F). While the average temperature in September slightly dips to 27°C (80°F), it remains almost the same as August's average of 27°C (81°F). The maximum temperatures are also comparable, reaching 33°C (91°F) in September and 33°C (92°F) in August. However, September experiences slightly more precipitation, with 245 mm (9.6 in) over 26 days compared to August's 225 mm (8.9 in) across 27 days, indicating that September tends to be a wetter month. Both months maintain high humidity levels of 87%, contributing to the tropical feel. For more insights, you can check out Phan Thiet weather in August.
September and October exhibit similar temperature patterns, with September having slightly higher maximum temperatures of 33°C (91°F) compared to October's 32°C (90°F). Both months maintain an average temperature of 27°C (80°F), with minimal variation in minimum temperatures as well. However, October experiences a slight increase in precipitation, totaling 272 mm (10.7 in) over 26 days, compared to September's 245 mm (9.6 in). Humidity levels remain consistently high in both months, with September at 87% and October at 86%. For more detailed insights on October's weather, check out Phan Thiet weather in October.
September and November share similar high temperatures, with both months reaching up to 33°C (91°F), but September tends to be warmer overall with an average of 27°C (80°F) compared to November's 26°C (80°F). September also experiences significantly more rainfall, with 245 mm (9.6 in) across 26 days, while November sees a decrease in precipitation to 160 mm (6.3 in) over 16 days. Despite this, humidity remains high in both months, with November slightly higher at 89% compared to September's 87%. For more detailed insights, you can check Phan Thiet weather in November.
In September, weather conditions are typically warmer and wetter, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 33°C (91°F). The month experiences substantial rainfall, totaling 245 mm (9.6 in) over 26 days, resulting in a high humidity level of 87%. In contrast, December brings a more temperate climate, featuring cooler temperatures with a minimum of 19°C (67°F) and a maximum of 32°C (90°F) and significantly less precipitation at 68 mm (2.7 in) over just 6 days. Despite the slight increase in humidity to 88%, December's weather is generally more pleasant and dry. For more information on weather specifics, visit Phan Thiet weather in December.
In September, Phan Thiet experiences a distinct shift in weather patterns compared to other months, marked by an increase in humidity and frequent precipitation. This month sees temperatures averaging a comfortably warm 27°C, with maximum highs reaching up to 33°C, making it ideal for those who enjoy warm weather. However, the sustained rain—occurring on nearly every day—can create a lush, vibrant landscape that contrasts with the drier, sunnier months. Visitors and locals alike may find the atmosphere refreshing, albeit challenging for some outdoor activities. For a deeper understanding of how the weather varies throughout the year, explore Phan Thiet Climate.