May weather forecast
Lao Cai, Vietnam

May in Lao Cai, Vietnam, marks a prominent surge in rainfall compared to April, ushering in what might be discussed as the peak monsoon season. Sunshine hours decline distinctively, allowing clouds to dominate much of the sky. The weather sees the highest average temperatures, reaching up to 32.2°C (90°F). Despite increased humidity levels, the significant rain showers provide a relieving balance. As June unfolds, the weather continues on this damp and warm trajectory.

Temperature

In Lao Cai, May records the highest average temperatures, peaking at 32.2°C (90°F) and reaching a low of 20.3°C (68.5°F).

Heat index

May's heat index is estimated at an extremely hot 41°C (105.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In May, the average relative humidity in Lao Cai is 70%.

Rainfall

In Lao Cai, in May, during 18.6 rainfall days, 92mm (3.62") of precipitation is typically accumulated. In Lao Cai, during the entire year, the rain falls for 188.3 days and collects up to 770mm (30.31") of precipitation.

Daylight

In Lao Cai, the average length of the day in May is 13h and 13min.
On the first day of the month, sunrise is at 05:30 and sunset at 18:30. On the last day of May, in Lao Cai, sunrise is at 05:18 and sunset at 18:43 +07.

Sunshine

The average sunshine in May is 10.3h.

UV index

The months with the highest UV index in Lao Cai are March through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.