Last updated: August 28, 2025
September in Haiphong, Vietnam is characterized by warm temperatures and high humidity, making it a vibrant yet sticky time of year. Daily highs soar to a maximum of 34°C (93°F), with an average temperature settling around 29°C (84°F), and lows rarely dipping below 24°C (75°F). This month also experiences significant rainfall, accumulating to 308 mm (12.1 in) over approximately 23 days, creating a lush and verdant atmosphere. The humidity level hovers around 82%, adding a tropical feel to the city's bustling streets, making it essential for visitors and locals alike to stay hydrated and prepared for the frequent showers.
In September, Haiphong experiences a pleasant transition as temperatures begin to moderate, offering a delightful blend of warmth and comfort. The minimum temperature hovers around 24°C (75°F), while the average climbs to 29°C (84°F), peaking at a maximum of 34°C (93°F). This slight decrease from the sweltering summer months reflects a shift towards cooler days, making it an ideal time for outdoor activities and exploration. Humidity remains relatively high, but the overall weather begins to hint at the approaching autumn. Whether you're strolling along the waterfront or venturing into the lush surroundings, September's temperatures create an inviting atmosphere perfect for enjoying all that Haiphong has to offer.
In September, Haiphong experiences significant rainfall, with 308 mm (12.1 inches) of precipitation spread across 23 days. This marks a notable decrease compared to the staggering 511 mm (20.1 inches) recorded in August, but it maintains a substantial level of moisture as the region transitions into the autumn months. The wet season peaks during the summer, which is evident in July and August, while September serves as a bridge, continuing the trend of high rainfall but signaling the upcoming decline into drier conditions. The month stands out as a crucial period for replenishing water sources, even as the frequency of rainy days begins to taper off, paving the way for a gradual reduction in precipitation as the year comes to a close.
In Haiphong, Vietnam, September marks a notable transition in humidity levels as it follows the peak of the rainy season. With an average humidity of 82%, the month remains quite moist, albeit a slight drop from the oppressive highs of July and August, which see levels soaring to 90% and 89%, respectively. This decrease suggests the tail end of the summer's sticky embrace, creating a more comfortable atmosphere for both residents and visitors. As September gives way to October, humidity begins to ease further to 77%, hinting at the arrival of drier and cooler autumn days ahead. Overall, the trend indicates that while September retains considerable humidity, it marks the beginning of a gradual relief from the sultry summer months.
September in Haiphong, Vietnam, continues the trend of extreme UV exposure, with a UV Index peaking at 13—consistent with the preceding months of July and August. The burn time remains a swift 10 minutes, highlighting the urgency for sun protection as the sun reaches its zenith. This month marks a transition phase as the UV Index begins to drop heading into October, where it sits at 11, but the extreme levels of sun exposure demand vigilant precautions throughout September. Outdoor enthusiasts should remain aware of their sun exposure during this time. For more detailed information, check the Haiphong UV Index.
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As September rolls into Haiphong, the city basks in 285 hours of sunshine, marking a delightful transition from the summer months. This burst of sunlight illustrates a gradual decline from the peak of 312 hours in May, yet it still outshines the earlier months of the year. The trend reveals that as the monsoon season fades, the city's skies begin to clear, offering a comfortable warmth that invites outdoor exploration. Notably, September stands as a bridge between the intense summer glow and the moderate brightness of autumn, making it an ideal time for visitors to experience the vibrant culture and scenic beauty of Haiphong under captivating sunny skies.
In September, Haiphong experiences a 25% chance of sunny weather, marking a slight improvement from the dismal sunshine in the summer months of June and August, which both plummet to just 14%. This modest increase suggests that while the tropical rains of the monsoon season are still lingering, there is a hint of respite as the month progresses. Notably, September's sunshine propensity is higher than April and May, yet still falls short of the brighter months of January and February, which boast chances exceeding 42%. Overall, if you're in Haiphong during September, it's still wise to prepare for a mix of sun and clouds, while hoping for those elusive sunny spells.
As September unfolds in Haiphong, Vietnam, residents enjoy 12 hours of daylight, a continuation of the trend established in the preceding months. The daylight duration begins to stabilize after the peak summer months of May through July, which boast an impressive 13 hours of sunshine. Following the summer, August witnesses a slight decrease, yet September maintains a balance that prepares the region for the approaching autumn. This transition emphasizes a gentle tapering of sunlight as the year progresses toward its end, with October poised to see daylight shrink to 11 hours. Overall, September serves as a bridge, allowing locals to relish ample daylight while anticipating the cooler, shorter days ahead.
As September unfolds in Haiphong, Vietnam, the wind begins to whisper a gentle lullaby, with average wind speeds dropping to 2.6 m/s (6 mph). This marks a notable decline from the breezy conditions of earlier months, where gusts peaked at 4.9 m/s (11 mph) in May. As summer gives way to autumn, the winds mellow, creating a serene atmosphere that contrasts sharply with the earlier, more vigorous gusts of June and July. By October, however, the winds are expected to pick up again, reflecting a seasonal rhythm that breathes life into the city. This cycle of wind speeds not only defines the weather patterns but also enhances the enchanting charm of Haiphong during this transitional period.
Weather in Haiphong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Haiphong, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures are notably warm, ranging from a minimum of 24°C (75°F) to a maximum of 34°C (93°F), with an average of about 29°C (84°F). This month also experiences significant rainfall, with an average of 308 mm (12.1 in) spread over 23 days, coupled with high humidity levels of 82%. In sharp contrast, January sees a much cooler climate, with temperatures dipping to a minimum of 9°C (49°F) and peaking at 25°C (78°F), averaging around 18°C (65°F). Precipitation is minimal during this month, totaling only 33 mm (1.3 in) over 8 days and featuring lower humidity at 66%. For more details about January weather in Haiphong, you can visit Haiphong weather in January.
September and February present stark contrasts in weather patterns. September boasts a warm climate with temperatures ranging from a minimum of 24°C (75°F) to a peak of 34°C (93°F), accompanied by high humidity at 82%. This month also sees substantial rainfall, with 308 mm (12.1 in) of precipitation over 23 days, making it one of the wettest periods of the year. In contrast, February offers a much cooler and drier atmosphere, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (78°F) and only 33 mm (1.3 in) of precipitation over just 7 days. The humidity also drops to a more comfortable 71%. For more specific details, check out Haiphong weather in February.
In September, the weather is considerably warmer and more humid compared to March, with average temperatures reaching 29°C (84°F) and maximums soaring up to 34°C (93°F). The month also sees significant rainfall, totaling 308 mm (12.1 in) over 23 days, resulting in a humidity level of 82%. In contrast, March offers a much milder climate, with average temperatures around 22°C (71°F) and maximums of 29°C (85°F). Rainfall is minimal, totaling just 50 mm (2.0 in) across 13 days, and humidity dips to a more comfortable 69%. For more details, you can check Haiphong weather in March.
In comparing the weather between September and April, it’s evident that September is notably warmer and more humid. With average temperatures reaching 29°C (84°F) and a maximum of 34°C (93°F), September boasts a significantly higher minimum temperature of 24°C (75°F) compared to April's cooler 16°C (61°F) minimum. Furthermore, September experiences much more rainfall, accumulating 308 mm (12.1 in) over 23 days, in stark contrast to April's 82 mm (3.2 in) of precipitation across just 13 days. This results in a much higher humidity level in September at 82%, compared to April's more comfortable 64%. For more detailed information, check out Haiphong weather in April.
September and May present distinct weather patterns, highlighting the transition into and out of the wet season. In September, temperatures typically range from a minimum of 24°C (75°F) to a maximum of 34°C (93°F), with an average of 29°C (84°F). The month experiences significant precipitation, totaling 308 mm (12.1 in) over 23 days and high humidity at 82%. In contrast, May offers slightly cooler conditions with minimum temperatures of 21°C (69°F) and maximums up to 35°C (95°F), averaging 28°C (82°F). Precipitation during this month is notably lower, at 152 mm (6.0 in), occurring over 16 days, and the humidity is more comfortable at 73%. For more details, visit Haiphong weather in May.
In comparing the weather between September and June, both months experience warm temperatures, but June tends to be slightly hotter overall. June has an average temperature of 30°C (87°F), peaking at 36°C (96°F), while September's average is a bit lower at 29°C (84°F), with a maximum of 34°C (93°F). Additionally, June sees less precipitation (192 mm or 7.5 in) compared to September, which has a notable 308 mm (12.1 in) spread over 23 days. Humidity levels are quite similar, with September at 82% and June at 81%. For more detailed insights, you can visit Haiphong weather in June.
When comparing the weather in September and July, both months experience warm temperatures; however, September tends to be slightly more humid with an average humidity of 82%, compared to July's higher 90%. In terms of temperature, July is a bit warmer, particularly at night, with a minimum temperature of 26°C (79°F) as opposed to September’s 24°C (75°F). The average temperatures are also very close, with July averaging 30°C (86°F) and September at 29°C (84°F). Precipitation levels are similar, but September has a slightly higher amount at 308 mm (12.1 in) over 23 days, compared to July's 301 mm (11.9 in) over 21 days. For more information, you can check Haiphong weather in July.
In comparing the weather between August and September, September experiences slightly lower temperatures, with a minimum of 24°C (75°F) and a maximum of 34°C (93°F), compared to August's minimum of 25°C (78°F) and maximum of 35°C (95°F). Both months have similar average temperatures, around 29°C (84°F in September and 85°F in August), but September sees a significant reduction in precipitation, dropping to 308 mm (12.1 in) over 23 days, while August has a much higher total of 511 mm (20.1 in) across 25 days. Furthermore, humidity levels remain high in both months, with September at 82% and August slightly higher at 89%. For a more detailed look at August's weather specifics, you can refer to Haiphong weather in August.
In comparing the weather from September to October, it's evident that October brings a slight drop in temperatures, with average values decreasing from 29°C (84°F) in September to 26°C (78°F) in October. The minimum temperature also lowers from 24°C (75°F) to 19°C (66°F), making October feel a bit cooler. While the maximum temperature remains fairly stable, peaking at 33°C (92°F) in October compared to 34°C (93°F) in September, the overall humidity decreases from 82% to 77%. Additionally, October experiences less rainfall, with 276 mm (10.8 in) falling over 17 days compared to September's 308 mm (12.1 in) over 23 days. For more details on October weather, you can visit Haiphong weather in October.
In September, the weather is significantly warmer and more humid compared to November, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (93°F). September also experiences heavy rainfall, with a total precipitation of 308 mm (12.1 in) spread over 23 days, resulting in a high humidity level of 82%. In contrast, November sees much cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 29°C (84°F), along with significantly lower precipitation of 54 mm (2.1 in) across just 10 days, contributing to a lower humidity of 72%. For more details on November weather, you can check Haiphong weather in November.
September and December present quite contrasting weather conditions. In September, temperatures are relatively high, with a minimum of 24°C (75°F) and an average of 29°C (84°F), peaking at 34°C (93°F). The month is also marked by significant rainfall, receiving 308 mm (12.1 in) over 23 days, and high humidity at 82%. In stark contrast, December experiences much cooler temperatures, with a minimum of 10°C (49°F) and an average of 19°C (67°F), reaching a maximum of 27°C (81°F). Rainfall drops drastically to 43 mm (1.7 in) over just 8 days, accompanied by a lower humidity level of 71%. For more details, you can check Haiphong weather in December.
As September unfolds in Haiphong, the weather experiences a notable shift, showcasing a blend of warmth and humidity that distinguishes it from the preceding months. With average temperatures hovering around 29°C, the city remains warm, but the higher humidity level of 82% can make it feel even warmer. This month also introduces a significant increase in rainfall, with an average of 23 rainy days contributing to a total of 308 mm of precipitation. Unlike the drier summer months, September's steamy atmosphere and frequent showers signal the onset of the rainy season, transforming Haiphong into a lush landscape. For more insights on how weather patterns shape this vibrant city, check out Haiphong Climate.