May weather forecast
Cẩm Phả, Vietnam

May is the beginning of the hot season in Cẩm Phả, marked by high temperatures and increased rainfall. The temperatures oscillate between 25.3°C (77.5°F) and 28.3°C (82.9°F) and see a substantial increase in rainfall to a whopping 131mm (5.16"). This month also experiences the longest daylight hours of 13.1 hours, giving ample time for day trips and exploring. With an increase in humidity and rainfall, residents and tourists are advised to stay hydrated. Despite the heat and humidity, the city's vibrant character and charm remain undeterred.

Temperature

Cẩm Phả's transition into May is marked by a minor temperature shift, moving from 24.5°C (76.1°F) in April to a still moderately hot 28.3°C (82.9°F). During the nights of May, Cẩm Phả records an average temperature of 25.3°C (77.5°F), a minor drop from daytime peaks.

Heat index

The heat index value for May is calculated to be a hot 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In May, the average relative humidity in Cẩm Phả, Vietnam, is 84%.

Rainfall

In Cẩm Phả, during May, the rain falls for 20.6 days and regularly aggregates up to 131mm (5.16") of precipitation. In Cẩm Phả, during the entire year, the rain falls for 209.3 days and collects up to 1269mm (49.96") of precipitation.

Sea temperature

In Cẩm Phả, in May, the average water temperature is 27.3°C (81.1°F).
Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.

Daylight

The average length of the day in May is 13h and 8min.
On the first day of May in Cẩm Phả, sunrise is at 05:19 and sunset at 18:15. On the last day of the month, sunrise is at 05:08 and sunset at 18:28 +07.

Sunshine

The average sunshine in May is 9.5h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Cẩm Phả. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 7 in May translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Caution! Sand and water surfaces escalate the UV intensity from the Sun.