Last updated: August 28, 2025
May in Dong Hoi, Vietnam welcomes warm temperatures and a vibrant atmosphere, with maximums reaching 37°C (99°F) and an average temperature of 28°C (82°F). Despite the heat, the month also brings a refreshing dose of humidity at 73%, along with 91 mm (3.6 in) of rainfall spread over approximately 15 days. This combination of warmth and precipitation contributes to the lush landscapes of the region, making it a picturesque time to explore the natural beauty and cultural richness of Dong Hoi.
In Dong Hoi, Vietnam, May marks the transition into the peak of summer, with temperatures on the rise. The month opens with a minimum of 20°C (68°F), signaling warmer days ahead, while the average temperature reaches a pleasant 28°C (82°F). As the days progress, heat intensifies, culminating in maximum temperatures soaring to 37°C (99°F). This significant spike is indicative of the region's shift towards a hotter climate as it approaches June. Compared to the preceding months, May's warmth is a clear indication of the impending summer, making it an ideal time for beach lovers and adventurers to enjoy the region's vibrant outdoor activities before the humidity truly sets in.
In May, Dong Hoi experiences a moderate precipitation level, with 91 mm (3.6 in) of rain typically spread over 15 days. This pattern reflects a slight decline in rainfall compared to the preceding months, offering residents and visitors a brief respite before the heavier downpours of the summer months. As the city transitions from the dry season into the wet season, May acts as a bridge, hinting at the significant rainfall to come in June and July, particularly after the sharp increase seen in March and April. The consistent rain days paired with moderate averages suggest that while May may offer lighter showers, the promise of lush, green landscapes is firmly established, setting the stage for the exuberant wet season ahead.
In May, Dong Hoi, Vietnam experiences a humidity level of 73%, which marks a slight rise from the 60% recorded in April. This increase suggests that the transition into warmer months is underway, as the humidity begins to build in anticipation of summer. As the year progresses, the trend is clear: the summer months of June (82%), July (90%), and August (92%) see a significant spike, creating a tropical atmosphere characteristic of the region. Following these peak levels, humidity gradually decreases into the autumn months, settling around 85% in October and maintaining a relatively high percentage through the winter. These fluctuations make May a transitional month, balancing between the mildness of spring and the sweltering heat of summer.
In May, Dong Hoi experiences an extreme UV Index of 14, marking a continuation of intense sun exposure that began in the preceding months. With a burn time of only 10 minutes, visitors and locals alike must take precautions to protect their skin during this period. This trend of high UV levels not only persists through April but continues into June, maintaining a consistent warning of heightened sun exposure. It’s essential to stay vigilant and adopt sun safety practices, as the UV Index in Dong Hoi remains critical throughout this season. For those planning outdoor activities, be sure to check the details at Dong Hoi UV Index.
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May brings an impressive 323 hours of sunshine to Dong Hoi, Vietnam, marking it as one of the sunniest months of the year. This delightful surge in sunlight follows a progressive increase from 211 hours in January and peaks after the already bright April and March months, showcasing a clear upward trend as the year warms up. The sunny days continue through June, maintaining a robust average of 315 hours, before gradually tapering off in the summer's later months. This consistency in daylight suggests that May is an unbeatable time for visitors seeking vibrant outdoor experiences amidst Dong Hoi’s stunning landscapes.
In Dong Hoi, Vietnam, the likelihood of sunny weather significantly increases by May, reaching 46%, the highest chance for the month in the first half of the year. This notable rise follows a gradual ascent from the lower percentages seen in earlier months, such as 21% in January and 33% in April. After May, the chance of sunshine takes a sharp dip in June to just 18%, indicating a transition to the wetter season. Overall, May serves as a sweet spot for sunshine seekers, providing a refreshing opportunity before the clouds roll in for the summer.
The daylight duration in Dong Hoi, Vietnam, showcases a delightful progression as the year unfolds. From January to April, the daylight remains steady at 11 hours, gradually transitioning into 12 hours by March and April. May marks a continuation of this stable 12-hour balance, as the days grow slightly longer. The summer months of June and July peak at 13 hours of daylight, allowing ample time for outdoor exploration and activities under the sun. As the year shifts into August and September, daylight returns to the 12-hour mark, providing a gentle transition back to shorter days. Finally, by October, the duration dips back to 11 hours, setting the stage for the cozy shorter days of winter. This rhythmic pattern offers both residents and visitors a reliable and enjoyable experience of sunlight throughout the seasons.
In May, the winds in Dong Hoi, Vietnam remain relatively gentle, with an average speed of 2.6 m/s (6 mph). This mild breeze characterizes the transition from the dry months of April and March, where wind speeds are also low, to the more dynamic winds of June and July, which see a significant increase to 4.8 m/s (11 mph). As summer approaches, it's clear that while May experiences a slight uptick in wind speed compared to earlier months, it remains a calm period, setting the stage for the more robust gusts that follow. This trend highlights a fascinating shift from tranquility to the vibrant energy of summer, making May a peaceful time to appreciate Dong Hoi's scenic beauty before the winds pick up.
Weather in Dong Hoi varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Dong Hoi, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is characterized by higher temperatures, with a minimum of 20°C (68°F) and an average of 28°C (82°F), reaching up to a maximum of 37°C (99°F). This month also sees about 91 mm (3.6 in) of precipitation over approximately 15 days, accompanied by a humidity level of 73%. In contrast, January is cooler, featuring a minimum temperature of 13°C (55°F) and an average of 20°C (68°F), peaking at 28°C (83°F). It experiences more substantial rainfall, with precipitation totaling 145 mm (5.7 in) across 19 days, along with a slightly higher humidity at 77%. For more detailed insights, check out Dong Hoi weather in January.
May and February exhibit distinct weather patterns, reflecting the transition towards the hotter months. In May, temperatures range from a mild 20°C (68°F) at night to a scorching maximum of 37°C (99°F), with an average of 28°C (82°F). The month typically sees 91 mm (3.6 in) of rainfall over 15 days, maintaining a consistent humidity level of 73%. In contrast, February offers a cooler climate, with temperatures varying from a minimum of 11°C (52°F) to a maximum of 30°C (86°F), averaging 20°C (69°F). The precipitation in February is slightly higher at 92 mm (3.6 in) over 16 days, but the humidity remains the same at 73%. For more detailed information, you can check Dong Hoi weather in February.
In comparing the weather between March and May, May tends to be significantly warmer, with average temperatures reaching 28°C (82°F) compared to March's cooler average of 23°C (74°F). Additionally, May can experience maximum temperatures soaring up to 37°C (99°F), while March peaks at a more moderate 33°C (92°F). Precipitation levels are quite similar, with May receiving 91 mm (3.6 in) over 15 days and March slightly less at 89 mm (3.5 in) spread over 17 days. Humidity is higher in May at 73%, compared to 64% in March, making May feel more tropical and muggy. For more detailed insights on March weather, you can visit Dong Hoi weather in March.
In comparing the weather of May and April, May generally experiences warmer temperatures with a minimum of 20°C (68°F) and an average of 28°C (82°F), compared to April's minimum of 17°C (63°F) and average of 25°C (77°F). While both months have similar maximum temperatures, with May reaching 37°C (99°F) and April 36°C (97°F), May also sees slightly less precipitation, totaling 91 mm (3.6 in) over 15 days, compared to April's 100 mm (3.9 in) over 16 days. Humidity is notably higher in May at 73%, while April enjoys a more comfortable 60% humidity level. For a more detailed view, you can check Dong Hoi weather in April.
May typically sees a warm temperature range, with minimums around 20°C and averages reaching up to 28°C. However, its high humidity of 73% and 91 mm of precipitation over 15 days can make the weather feel quite muggy. In contrast, June brings slightly higher temperatures, starting at a minimum of 24°C and averaging 30°C, coupled with a max temperature peaking at 37°C. Also noteworthy is June's reduced rainfall, with only 47 mm spread over 8 days, despite a higher humidity of 82%. For more detailed insights, you can check Dong Hoi weather in June.
In comparing the weather between May and July, we observe a notable increase in humidity and precipitation during July. While May experiences average temperatures ranging from 20°C (68°F) to a maximum of 37°C (99°F), July's temperatures are slightly warmer, with a minimum of 25°C (77°F) and a maximum of 36°C (98°F). The rainfall also significantly rises from 91 mm (3.6 in) over 15 days in May to 199 mm (7.9 in) over just 11 days in July, reflecting a wetter and more humid atmosphere, with humidity levels peaking at 90% compared to May's 73%. For more detailed information, you can check Dong Hoi weather in July.
When comparing the weather in May and August, it is clear that both months experience warm temperatures, but with distinct differences in humidity and precipitation. May has a minimum temperature of 20°C and an average temperature of 28°C, with high humidity levels at 73%. It also sees significant rainfall with 91 mm over approximately 15 days. In contrast, August offers slightly warmer temperatures with a minimum of 25°C and an average of 29°C; however, it has even higher humidity at 92%. Moreover, August typically receives more rainfall at 135 mm, but over fewer days, totaling 12. For more insights on August weather, you can check Dong Hoi weather in August.
In comparing the weather of May and September, we see some notable differences. May has a warm climate with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 37°C (99°F) and an average temperature of 28°C (82°F). It experiences lower precipitation at 91 mm (3.6 in) over 15 days, and humidity levels are moderate at 73%. In contrast, September presents a slightly warmer minimum temperature of 24°C (75°F) and a cooler maximum of 34°C (94°F), while maintaining a similar average of 28°C (83°F). However, September is significantly wetter, with 386 mm (15.2 in) of rainfall spread over 19 days and higher humidity at 87%. For more detailed insights into September's weather, you can check this link: Dong Hoi weather in September.
May and October present contrasting weather patterns, particularly in temperature and precipitation. In May, temperatures range from a comfortable 20°C (68°F) at night to a scorching 37°C (99°F) during the day, with an average of 28°C (82°F). However, this month experiences less rainfall, totaling 91 mm (3.6 in) over approximately 15 days, and humidity averages around 73%. In contrast, October sees cooler temperatures, with a maximum of 33°C (91°F) and an average of 25°C (78°F), while maintaining the same minimum night temperature of 20°C (68°F). This month is significantly wetter, with an impressive 734 mm (28.9 in) of precipitation spread across about 25 days and humidity rising to 85%. For more detailed information about October's weather, you can check Dong Hoi weather in October.
In May, the weather is characterized by warmer temperatures, ranging from a minimum of 20°C (68°F) to a maximum of 37°C (99°F), with an average of 28°C (82°F). The month sees about 91 mm (3.6 in) of precipitation over approximately 15 rainy days and retains a humidity level of 73%. In contrast, November exhibits cooler temperatures, with a minimum of 16°C (61°F) and a maximum of 30°C (86°F), averaging at 23°C (74°F). However, it is significantly wetter, receiving 424 mm (16.7 in) of rainfall spread across 23 days, along with a higher humidity of 84%. For more detailed information, you can check Dong Hoi weather in November.
In May, temperatures tend to be warmer, with a minimum of 20°C (68°F) and an average high reaching up to 37°C (99°F), making it a hot month overall. However, it also experiences a moderate amount of rainfall, totaling 91 mm (3.6 in) over about 15 days, with humidity levels at around 73%. In contrast, December offers cooler temperatures, ranging from a minimum of 15°C (59°F) to a maximum of 27°C (81°F) and an average of 20°C (69°F). The month sees significantly higher precipitation, accumulating 250 mm (9.8 in) over approximately 21 days, accompanied by a slightly higher humidity level of 83%. For more detailed insights, you can visit Dong Hoi weather in December.
As May arrives in Dong Hoi, it ushers in a distinct change in climate compared to preceding months. The robust temperature fluctuations, peaking at an impressive 37°C, create a noticeable warmth that highlights the onset of summer. With an average temperature of 28°C, the days feel hot and inviting, though the evenings maintain a comfortable coolness around 20°C. However, this month also witnesses a marked increase in precipitation, with rain falling on about half the days, which enhances the humidity level to around 73%. This combination of warmth and rain makes May a lush yet steamy month in Dong Hoi, setting the stage for the vibrant tropical landscape. For more detailed insights into the region's weather patterns, visit Dong Hoi Climate.