May weather forecast
Ca Mau, Vietnam

Ca Mau's outdoor atmosphere in May adopts a warm, wet perspective with recorded rainfall peaks at 91mm (3.58"), marking it as the first month of the Wet season. Larger cloud formations become a common sight, reflecting the city's transition into its major rainy phase. The humidity level escalates, intensifying the moisture in the air. Despite this, the daylight hours extend, painting longer sunny intervals in the day. The climate takes a progressively wetter turn, foreboding the impending monsoon in June.

Temperature

Ca Mau observes a minor difference in average high-temperatures between April's 33.6°C (92.5°F) and May's 33.3°C (91.9°F). Ca Mau's nighttime temperature in May falls to an average of 27.8°C (82°F).

Heat index

The heat index for May is computed to be a burning hot 45°C (113°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
The metrics for the heat index are tailored for both shady environments and light winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in May is 71%.

Rainfall

In Ca Mau, during May, the rain falls for 24.9 days and regularly aggregates up to 91mm (3.58") of precipitation. In Ca Mau, during the entire year, the rain falls for 238.6 days and collects up to 889mm (35") of precipitation.

Daylight

The average length of the day in May is 12h and 32min.
On the first day of the month, sunrise is at 05:43 and sunset at 18:09. On the last day of May, sunrise is at 05:38 and sunset at 18:15 +07.

Sunshine

In Ca Mau, the average sunshine in May is 10.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.