Last updated: August 28, 2025
May in Haiphong, Vietnam, welcomes the onset of summer with warm temperatures that peak at a maximum of 35°C (95°F) and maintain an average of 28°C (82°F), while nighttime lows dip to a comfortable 21°C (69°F). This month is marked by significant precipitation, with 152 mm (6.0 in) of rain falling over 16 days, contributing to the region's lush landscapes. Humidity levels hover around 73%, adding to the tropical atmosphere. Travelers can expect both scorching days and refreshing showers, making it a vibrant time to experience the city's beauty.
May in Haiphong, Vietnam, marks a significant transition into the summer heat, with temperatures on the rise compared to the previous months. The minimum temperature starts at a balmy 21°C (69°F), while the average soars to 28°C (82°F), peaking at a sizzling 35°C (95°F). This month is characterized by warmer evenings and increasingly hot days, signaling the approach of peak summer. As May progresses, locals and visitors alike flock to coastal areas for relief from the heat, making it a vibrant time to experience the city's lively atmosphere. With a clear upward trend in temperatures from April's averages, May sets the stage for the sweltering months ahead while offering a taste of the summer sun and the charm of Haiphong’s beaches.
In May, Haiphong experiences a noticeable uptick in rainfall, with a significant precipitation total of 152 mm (6.0 in) recorded over approximately 16 days. This marks a sharp increase from the preceding months, particularly when compared to April's 82 mm, signaling the onset of the wet season. The trend continues into June, which sees even more rainfall, but May stands out for its blend of rising humidity and lush greenery, as the landscape transforms quickly under the veils of early summer rain. Residents and visitors alike can expect a vibrant atmosphere, albeit one that comes with increased chances of downpours.
As May arrives in Haiphong, Vietnam, residents and visitors alike can expect a notable increase in humidity, reaching 73%. This slight uptick follows a trend of higher moisture levels through the spring, contrasting with the more temperate April, which recorded 64% humidity. As the city transitions into the sweltering summer months, humidity will escalate dramatically, soaring to 81% in June and peaking at an impressive 90% in July. This steady rise hints at the challenges of heat and humidity characteristic of Haiphong's tropical climate, making May a transitional month where the air grows increasingly thick with moisture, setting the stage for the sultry summer ahead.
As temperatures rise in May, Haiphong experiences a UV Index of 12, categorizing the exposure as extreme with a noticeably reduced burn time of just 10 minutes. This trend of increasing UV levels is consistent from March onward, peaking in April with an index of 13. Although May's index slightly decreases from the previous month, it remains significantly high, continuing the pattern observed earlier in the year. It serves as a reminder for residents and visitors alike to practice sun safety and protect themselves during these potent UV conditions. For more detailed information, you can check out the Haiphong UV Index.
UV Risk Categories
As spring transitions to summer in Haiphong, May delights the city with an impressive 312 hours of sunshine, marking it as the sunniest month of the year. This period of radiant weather follows a pattern of increasing daylight, starting from January's mere 179 hours and rising steadily through April, which sees 263 hours of golden rays. The trend not only highlights May's peak but also sets the stage for the warm months ahead, as June and July continue to bask in abundant sunlight with 302 and 298 hours respectively. As the summer progresses, though there is a slight dip in sunshine hours, the overall trend of bright days solidifies Haiphong’s reputation as a vibrant destination during these lively months.
In May, Haiphong, Vietnam experiences a 37% chance of sunny weather, marking a modest drop from the more promising conditions seen earlier in the year, particularly in January and February with their respective chances of 42% and 54%. This trend continues a pattern observed from April, which only had a 27% chance of sunshine. As the region transitions into the hotter months of June and July, the likelihood of sunny days declines significantly, plummeting to 14% during those months. Thus, while May still offers occasional rays of sunshine, it signals a shift towards a more overcast period, suggesting that visitors may want to prepare for some cloud cover as the summer approaches.
In Haiphong, Vietnam, the rhythm of daylight unfolds gracefully throughout the year. January and February greet residents with a steady 11 hours of daylight, while the arrival of March and April ushers in a slight increase to 12 hours, hinting at the approach of summer. As May progresses, the daylight peaks at a vibrant 13 hours, which continues through June and July, creating the perfect backdrop for outdoor activities and exploration. However, as August rolls in, daylight begins to wane, returning to 12 hours before tapering off to 11 hours by October and further down to 10 hours in December. This gradual transition reflects the seasonal shift in Haiphong, balancing longer days of summer with the cozy embrace of winter.
As May arrives in Haiphong, Vietnam, it brings a noticeable increase in wind speed, with an average of 4.9 m/s (11 mph), making it one of the breeziest months of the year. This uptick from the milder winds of April, which averaged 3.9 m/s (9 mph), signals a transition into the summer season. Following a consistent trend, the months leading into summer, particularly June and October, also boast similar, robust winds, suggesting a pattern of invigorating breezes that define the region's climate during this time. The shift from the calmer winds of winter and early spring to the refreshing gusts of May not only enhances the natural beauty of Haiphong but also invites outdoor enthusiasts to relish the vibrant, wind-swept landscape.
Weather in Haiphong varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Haiphong, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of May and January, it is evident that May is much warmer and more humid. With temperatures ranging from a minimum of 21°C (69°F) to a maximum of 35°C (95°F), May averages around 28°C (82°F), while January has a cooler temperature range of 9°C (49°F) to 25°C (78°F), averaging only 18°C (65°F). Additionally, May experiences significantly more precipitation, with 152 mm (6.0 in) over 16 days compared to January's modest 33 mm (1.3 in) across 8 days. Humidity is also higher in May at 73%, compared to 66% in January. For more detailed information, you can check Haiphong weather in January.
When comparing the weather in May to that in February, one can see a dramatic shift in temperature and precipitation. May experiences much warmer conditions, with average temperatures reaching around 28°C (82°F) and maximums soaring up to 35°C (95°F). In contrast, February has cooler temperatures, averaging 19°C (66°F) with a maximum of 25°C (78°F) and a minimum as low as 9°C (48°F). Additionally, May is significantly wetter, receiving 152 mm (6.0 in) of rain over 16 days, compared to February's 33 mm (1.3 in) over just 7 days. Thus, while February offers more mild and drier weather, May brings heat and increased humidity, making it a more challenging time for outdoor activities. For more detailed insights, check Haiphong weather in February.
When comparing the weather in March and May, it’s evident that May is considerably warmer, with average temperatures reaching 28°C (82°F) compared to March's average of 22°C (71°F). The maximum temperatures in May can peak at 35°C (95°F), while March only reaches up to 29°C (85°F). Additionally, May experiences significantly higher rainfall, with 152 mm (6.0 in) over 16 days, compared to March’s 50 mm (2.0 in) across 13 days. Although both months have similar humidity levels, May’s is slightly higher at 73%, compared to March's 69%. For more detailed insights, you can check the Haiphong weather in March.
In comparing the weather of May to April, we see a noticeable increase in temperature and humidity. May experiences a minimum temperature of 21°C (69°F) and averages around 28°C (82°F), peaking at 35°C (95°F), while April has a milder range with a minimum of 16°C (61°F), an average of 24°C (76°F), and a maximum of 31°C (89°F). Additionally, May sees a significant rise in precipitation, with 152 mm (6.0 in) over 16 rainy days, compared to April's 82 mm (3.2 in) spread across 13 days. This increase in rainfall contributes to May's higher humidity level of 73%, compared to April's 64%. For more details on April weather, check Haiphong weather in April.
May generally experiences slightly lower temperatures compared to June, with an average of 28°C (82°F) and a maximum peak of 35°C (95°F), whereas June sees a higher average temperature of 30°C (87°F) and can reach up to 36°C (96°F). Precipitation also increases from May to June, with May receiving 152 mm (6.0 in) over 16 days and June totaling 192 mm (7.5 in) across 15 days. Additionally, humidity levels rise in June to 81%, compared to May's 73%, contributing to a warmer and more humid atmosphere. For more detailed information, visit Haiphong weather in June.
In comparing the weather between May and July, May tends to be slightly cooler, with average temperatures ranging from a minimum of 21°C (69°F) to a maximum of 35°C (95°F), while July experiences higher minimum temperatures, starting at 26°C (79°F) and reaching the same maximum of 35°C (95°F). Precipitation significantly increases in July, with 301 mm (11.9 in) over 21 days compared to May's 152 mm (6.0 in) over 16 days. Additionally, humidity levels rise markedly in July, reaching 90% compared to May's 73%, creating a more oppressive atmosphere. For a closer look at July weather specifics, you can check Haiphong weather in July.
In comparing May and August weather, both months experience similar maximum temperatures of 35°C (95°F), but August tends to be slightly warmer on average with a temperature of 29°C (85°F) compared to May's 28°C (82°F). However, August is characterized by significantly higher humidity at 89%, compared to May's 73%. Precipitation also differs notably; May receives 152 mm (6.0 in) of rain over 16 days, whereas August sees a drastic increase in rainfall with 511 mm (20.1 in) across 25 days. This results in a much wetter climate during August, making it important to prepare for the potential downpours. For more detailed insights, check out Haiphong weather in August.
In comparing the weather of May and September, we see that both months feature warm temperatures, but September tends to be slightly warmer with average temperatures reaching 29°C (84°F) compared to May's 28°C (82°F). The minimum temperatures in September are notably higher at 24°C (75°F), while May starts cooler at 21°C (69°F). However, September experiences significantly more rainfall, with a total precipitation of 308 mm (12.1 in) over 23 days, compared to May's 152 mm (6.0 in) over 16 days. This increased precipitation in September also contributes to higher humidity levels, which rise to 82% from May's 73%. For further details, you can check Haiphong weather in September.
May and October display notable differences in weather patterns, particularly in temperature and precipitation. In May, temperatures range from a minimum of 21°C (69°F) to a maximum of 35°C (95°F), with an average of 28°C (82°F), accompanied by 152 mm (6.0 in) of precipitation over 16 days and a humidity level of 73%. In contrast, October features slightly cooler temperatures, with a minimum of 19°C (66°F) and a maximum of 33°C (92°F), averaging 26°C (78°F). October also experiences higher rainfall, totaling 276 mm (10.8 in) across 17 days, as well as increased humidity at 77%. This makes October generally wetter and a touch more humid compared to the warmer month of May. For more details, you can check Haiphong weather in October.
In May, the weather is characterized by higher temperatures, with averages around 28°C (82°F) and peaks reaching up to 35°C (95°F). This month also experiences significant precipitation, averaging 152 mm (6.0 in) over approximately 16 days, resulting in a humid environment with humidity levels around 73%. In contrast, November brings cooler temperatures, with an average of 23°C (74°F) and maximums of 29°C (84°F). Rainfall diminishes considerably to about 54 mm (2.1 in) across 10 days, while humidity remains relatively stable at 72%. For more insights into the weather during this month, you can check Haiphong weather in November.
May and December present contrasting weather experiences. In May, temperatures soar with a minimum of 21°C (69°F), averaging at 28°C (82°F), and peaking at 35°C (95°F). The month is characterized by significant rainfall, totaling 152 mm (6.0 in) over 16 days, accompanied by high humidity levels at 73%. In stark contrast, December brings cooler temperatures, with a minimum of 10°C (49°F), an average of 19°C (67°F), and a maximum of 27°C (81°F). Precipitation decreases significantly to 43 mm (1.7 in) over just 8 days, and humidity remains relatively stable at 71%. For more detailed information, visit Haiphong weather in December.
As May arrives in Haiphong, the city shifts into a warmer, more humid phase of the year, presenting a stark contrast to the cooler months that precede it. With temperatures reaching up to 35°C (95°F) and an average of 28°C (82°F), outdoor activities become more invigorating yet challenging due to increased humidity around 73%. This month also sees a notable uptick in rainfall, with about 16 days experiencing precipitation totaling 152 mm (6.0 in). These climatic changes signal the transition toward summer, offering a vibrant atmosphere for both locals and visitors. For more detailed insights, check out Haiphong Climate.