Last updated: August 28, 2025
September in Thanh Hoa, Vietnam offers a warm and humid climate, with temperatures reaching a maximum of 35°C (95°F) and averaging around 28°C (82°F). The days are often punctuated by frequent rain, contributing to a notable precipitation total of 292 mm (11.5 in) across 27 days of the month. With humidity levels soaring at 89%, visitors and locals alike should prepare for a tropical experience, where both the heat and the moisture create a vibrant, lush atmosphere characteristic of this beautiful region.
In September, Thanh Hoa, Vietnam, experiences warm and inviting temperatures, with a minimum of 24°C (75°F) and a maximum reaching 35°C (95°F). The average temperature hovers around 28°C (82°F), mirroring the pleasant warmth of the preceding summer months. As the season transitions, the heat remains consistent, giving visitors a chance to enjoy the lingering summer vibes before the cooler October air arrives. This month stands out for its balanced warmth, making it ideal for outdoor adventures and cultural explorations in the lush surroundings of Thanh Hoa.
September marks a significant high point in precipitation for Thanh Hoa, Vietnam, with rainfall totaling 292 mm (11.5 in) over 27 days. Building on the heavy rains of August, which recorded 288 mm, September continues the trend of increased rainfall as the region transitions deeper into the rainy season. The consistent downpour not only nourishes the lush landscapes but also indicates a month characterized by relatively frequent rain events. This pattern, peaking just before the slightly drier October, highlights a remarkable wet season that begins to taper off as the year progresses, yet September stands out as a climactic moment in the annual precipitation cycle. The shift from summer's abundant moisture to autumn's gradual decline sets the stage for a vibrant, thriving ecosystem while reminding residents to prepare for the fluctuating weather ahead.
In September, Thanh Hoa, Vietnam experiences a notable humidity level of 89%, which reflects a continuation of the high humidity pattern established during the summer months. As the year progresses from January's 65% to the peak observed in August at 90%, it's clear that the humidity increases significantly as the region heads deeper into the rainy season. This slight dip from August to September suggests a slight moderation, yet the moisture-laden air remains prevalent, contributing to the sultry climate typical of late summer. The approaching transition to autumn maintains elevated humidity levels, with a gradual decrease expected as the year shifts into the cooler months. Overall, September stands as a reminder of the region's tropical character, where the lingering heat meets persistent humidity.
In September, Thanh Hoa continues to bask in extreme UV conditions, with a UV Index consistently at 13, and a burn time of just 10 minutes. This trend aligns perfectly with the preceding months of June, July, and August, where the UV Index also hovered around the same extreme level. As the region transitions into autumn, the UV levels show a slight decrease, but the risk remains significant. It's crucial for residents and visitors alike to prioritize sun safety, making informed choices to protect their skin. For a more comprehensive understanding of UV exposure in the area, check out the details at Thanh Hoa UV Index.
UV Risk Categories
September in Thanh Hoa, Vietnam, boasts a delightful 258 hours of sunshine, contributing to a vibrant array of outdoor activities and scenic adventures. As summer transitions to autumn, this month's sunshine hours reflect a notable dip from the peak of 329 hours in March and 313 hours in April. While September's sunlight is less than the preceding summer months, it still maintains a charming glow, creating a serene backdrop for exploring the region's rich culture. Following September, the sunshine hours gradually stabilize, with October bringing 254 hours, indicating a gentle shift towards the cooler months yet retaining enough warmth for leisurely enjoyment. This rhythmic fluctuation highlights Thanh Hoa's unique climate, inviting visitors to experience the beauty of each season.
In September, the likelihood of experiencing sunny weather in Thanh Hoa, Vietnam dwindles to just 9%, marking it as one of the cloudiest months of the year. This decline is part of a noticeable trend as the summer months of June through August see significantly lower chances of sunshine, with figures dropping to 14% in August and even lower thereafter. As the region transitions into the autumn season, the probability of clear skies continues to decline, peaking in the earlier months of the year, notably at 52% in March. Thus, for those hoping to soak in the sun during September, it's wise to prepare for a more overcast experience.
In September, Thanh Hoa, Vietnam enjoys a steady 12 hours of daylight, a continuation of the prolonged daylight seen since March. This month marks a transitional period as the long summer days of June through August gradually recede. The consistency in daylight hours—from 11 hours in January and February to a peak of 12 hours from March to September—highlights a stable trend as the region shifts from the hotter summer months towards the cooler days of fall. As September unfolds, residents experience equal parts of light and darkness, setting the stage for the gradual decrease in daylight that will commence in October.
As September unfolds in Thanh Hoa, Vietnam, the average wind speed settles at 2.1 m/s (5 mph), reflecting a transitional phase in the region’s climatic rhythm. This month marks a slight decline from the breezier months of July and June, which recorded their peak winds at 2.9 m/s (6 mph) and 2.8 m/s (6 mph) respectively. The gentle breezes of September create a soothing atmosphere, perfectly complementing the vibrant colors of the changing season. Following the summer’s gusty winds, the landscape begins to calm, with October mirroring September's tranquil speeds. As the year draws closer to its end, this steady wind pattern underscores the region's shift from the lively summer breezes to the more subdued winds of late autumn.
Weather in Thanh Hoa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Thanh Hoa, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warmer temperatures, with a minimum of 24°C (75°F) and an average of 28°C (82°F), peaking at a hot 35°C (95°F). This month experiences heavy rainfall, totaling 292 mm (11.5 in) over 27 days, accompanied by high humidity levels of 89%. In contrast, January offers a more moderate climate, with a lower minimum temperature of 19°C (67°F) and an average of 27°C (81°F), reaching a maximum of 34°C (94°F). Precipitation is significantly reduced in January, totaling only 42 mm (1.7 in) across just 6 days, along with a drop in humidity to 65%. For more information, check out Thanh Hoa weather in January.
In September, the weather is characterized by higher temperatures and significant rainfall, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 35°C (95°F). This month experiences an average of 292 mm (11.5 in) of precipitation over 27 days, accompanied by high humidity levels of 89%. In contrast, February presents a milder climate, with temperatures slightly lower—averaging from a minimum of 20°C (68°F) to a maximum of 35°C (96°F). Precipitation drops dramatically to just 16 mm (0.6 in) over 3 days, and humidity also decreases significantly to 61%. For more on February weather specifics, you can visit Thanh Hoa weather in February.
In September, the weather is characterized by high humidity and significant rainfall, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 35°C (95°F). The month experiences frequent precipitation, totaling 292 mm (11.5 in) spread over 27 days, resulting in a humid environment where the humidity averages around 89%. In contrast, March offers a warmer and drier climate, with temperatures averaging a minimum of 22°C (73°F) and peaking at 37°C (98°F). Precipitation in March is minimal, with just 20 mm (0.8 in) occurring over 4 days, and humidity levels drop significantly to about 58%. For more specific insights into March weather in the region, refer to Thanh Hoa weather in March.
September and April exhibit distinct weather patterns, highlighting the transition from the wet season to the hotter months. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 35°C (95°F), accompanied by high humidity at 89% and substantial rainfall of 292 mm (11.5 in) over 27 days. In contrast, April sees slightly higher average temperatures, peaking at 38°C (100°F), yet it experiences significantly less precipitation at 90 mm (3.6 in) and lower humidity at 60%, allowing for drier and hotter conditions. For more details, check Thanh Hoa weather in April.
In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 35°C (95°F), with an average of 28°C (82°F). The month is characterized by high precipitation, with 292 mm (11.5 in) of rain falling over 27 days and humidity levels reaching 89%. In contrast, May features slightly higher temperatures with a minimum of 25°C (77°F) and a maximum of 38°C (101°F), averaging 29°C (85°F). While May experiences lower overall precipitation at 187 mm (7.3 in) over 24 days, the humidity is also lower at 80%. These differences highlight the transition from the end of summer into the rainy season, with September being notably wetter and more humid. For more details, you can check Thanh Hoa weather in May.
September and June share similar temperature ranges, with minimums around 24°C (75°F), averages close to 28°C (82-83°F), and maximums peaking at 35°C (95°F). However, September tends to be rainier, receiving 292 mm (11.5 in) of precipitation over 27 days compared to June's 213 mm (8.4 in), making it a wetter month. The humidity levels are also slightly higher in September at 89%, compared to June's 87%. For more detailed insights, you can check Thanh Hoa weather in June.
In comparing the weather of September and July, we see that both months maintain similar temperature ranges, with September experiencing slightly higher maximum temperatures at 35°C (95°F) compared to July's 34°C (94°F). Both months have an average minimum temperature of around 24°C (75°F) to 24°C (76°F) and exhibit high humidity levels of 89%. Precipitation is notably higher in September, with 292 mm (11.5 in) recorded over 27 days, while July has 268 mm (10.6 in) over 29 days. This suggests that September may be wetter overall, though both months are characterized by frequent rainfall. For a detailed look at July's climate, you can visit Thanh Hoa weather in July.
In comparing the weather of September and August, both months experience similar temperature ranges, with minimums around 24°C (75°F), averages of 28°C (82°F), and maximums reaching up to 35°C (95°F for September and 94°F for August). However, September has slightly higher precipitation levels at 292 mm (11.5 in) over 27 days compared to August's 288 mm (11.3 in) over 28 days, indicating a marginally wetter month. Humidity levels remain quite close, with September at 89% and August slightly higher at 90%. For a more detailed look at August weather specifics, you can check Thanh Hoa weather in August.
In September, the weather tends to be warmer with average temperatures reaching 28°C (82°F) and maximums soaring up to 35°C (95°F). The month is also characterized by high humidity at 89% and considerable precipitation, totaling 292 mm (11.5 in) over 27 days. In contrast, October sees a slight decrease in temperature, with an average of 27°C (82°F) and a maximum of 34°C (94°F). Rainfall is also slightly less, measuring 284 mm (11.2 in) but still occurring across 27 days, while humidity decreases marginally to 87%. For more detailed insights on weather conditions, you can visit Thanh Hoa weather in October.
In September, the weather is characterized by warmer temperatures and higher humidity, with minimums around 24°C (75°F) and maximums reaching up to 35°C (95°F). The month sees significant rainfall, totaling 292 mm (11.5 in) across 27 days, creating a typically wet atmosphere with a humidity level of 89%. In contrast, November presents a slightly cooler environment, with minimum temperatures dropping to 21°C (71°F), while the average remains the same at 28°C (82°F). The precipitation decreases to 173 mm (6.8 in) over 19 days, resulting in a more manageable moisture level and slightly lower humidity at 87%. For more detailed information about November weather, visit Thanh Hoa weather in November.
In September, the weather showcases much warmer temperatures with a minimum of 24°C (75°F) and averages reaching 28°C (82°F), peaking at a maximum of 35°C (95°F). The month is characterized by substantial rainfall, totaling 292 mm (11.5 in) over 27 days, coupled with high humidity levels at 89%. Conversely, December offers a more moderate climate, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 33°C (92°F) and an average of 27°C (81°F). The precipitation during this month is significantly lower at 70 mm (2.7 in) over just 10 days, along with a slightly reduced humidity of 80%. For those interested in the weather specifics of this month, refer to Thanh Hoa weather in December.
As September rolls into Thanh Hoa, the weather transforms dramatically, marked by high humidity levels and frequent rain that sets it apart from the drier months. While the temperatures remain relatively warm, with highs around 35°C, the increased precipitation, averaging a substantial 292 mm over nearly 27 days, creates a notably wet atmosphere. This shift contributes to an oppressive humidity of 89%, making September feel particularly sultry and vibrant. If you're looking to plan your visit or learn more about how the climate shapes this beautiful region, check out Thanh Hoa Climate.