May weather forecastDieu Viên, Vietnam

May

Weather in May

May, the last month of the spring in Dieu Viên, is a hot month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 31.8°C (89.2°F).

Temperature

Dieu Viên notes the warmest temperatures in May, with a high average of 31.8°C (89.2°F) and a low of 25.9°C (78.6°F).

Heat index

The heat index value during May is appraised at an extremely hot 42°C (107.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Know that the heat index computations account for shaded terrains and slight winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. 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 is 77%.

Rainfall

In Dieu Viên, in May, it is raining for 20.1 days, with typically 78mm (3.07") of accumulated precipitation. In Dieu Viên, during the entire year, the rain falls for 260 days and collects up to 1343mm (52.87") of precipitation.

Daylight

In May, the average length of the day is 12h and 44min.
On the first day of May, sunrise is at 05:22 and sunset at 17:58. On the last day of the month, sunrise is at 05:15 and sunset at 18:06 +07.

Sunshine

In May, the average sunshine is 10.6h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Updated: Aug 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

May, with its average high-temperature of 31.8°C (89.2°F) and an average low-temperature of 25.9°C (78.6°F), holds the record as the warmest month.

The high-temperature during May is 31.8°C (89.2°F) and the low-temperature is 25.9°C (78.6°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in May is appraised at 42°C (107.6°F).

In Dieu Viên, the average relative humidity in May is 77%.

In May, in Dieu Viên, the rain falls for 20.1 days. Throughout May, 78mm (3.07") of precipitation is accumulated.

In May, the average day length is 12h and 44min.

In May, on the first day of the month, sunrise is at 05:22 and sunset at 17:58. On the last day of the month, sunrise is at 05:15 and sunset at 18:06 +07.

In Dieu Viên, the average sunshine duration in May is 10.6h.

March through September, with an average maximum UV index of 7, are months with the highest UV index.

The average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

29.9°C

31.8°C

31.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.5km/h

11.5km/h

13.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

12.6

8.8

7.4

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Dieu Viên, Vietnam

Average high temperature in May: 31.8°C

The warmest month (with the highest average high temperature) is May (31.8°C).
The month with the lowest average high temperature is January (24.5°C).

Average low temperature in May: 25.9°C

The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is February (21.3°C).

Average pressure in May
Dieu Viên, Vietnam

Average pressure in May: 1008.7mbar

The month with the highest atmospheric pressure is January (1014.7mbar).
The month with the lowest atmospheric pressure is July (1006.6mbar).

Average wind speed in May
Dieu Viên, Vietnam

Average wind speed in May: 10.3km/h

The windiest month (with the highest average wind speed) is December (18.7km/h).
The calmest month (with the lowest average wind speed) is May (10.3km/h).

Average humidity in May
Dieu Viên, Vietnam

Average humidity in May: 77%

The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are June, July and August (76%).

Average rainfall in May
Dieu Viên, Vietnam

Average rainfall in May: 78mm

The wettest month (with the highest rainfall) is November (283mm).
The driest month (with the least rainfall) is March (45mm).

Average rainfall days in May
Dieu Viên, Vietnam

Average rainfall days in May: 20.1 days

The month with the highest number of rainy days is October (27.1 days).
The months with the least rainy days are March and April (14.8 days).

Average daylight in May /
Average sunshine in May
Dieu Viên, Vietnam

Average daylight in May: 12h and 42min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).

Average sunshine in May: 10h and 36min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

Average sunshine days in May
Dieu Viên, Vietnam

Average sunshine days in May: 8.8 days

The month with the most sunshine days is March (12.8 days).
The month with the least sunshine days is December (2.4 days).

Average UV index in May
Dieu Viên, Vietnam

Average UV index in May: 7

The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).

Average cloud cover in May
Dieu Viên, Vietnam

Average cloud cover in May: 27

The month with the most cloud cover is December (Cloud cover 74).
The month with the least cloud cover is May (Cloud cover 27).

Average visibility in May
Dieu Viên, Vietnam

Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).