May weather forecast
Masahuat, El Salvador

May

Weather in May

The last month of the spring, May, is another tropical month in Masahuat, El Salvador, with temperature in the range of an average low of 20.7°C (69.3°F) and an average high of 31.1°C (88°F).

Temperature

Masahuat's weather in May, with an average high-temperature of a still tropical 31.1°C (88°F), subtly shifts from April's 33.2°C (91.8°F). The average temperature during May nights dips to an agreeable 20.7°C (69.3°F).

Heat index

The heat index in May is appraised at a scorching 40°C (104°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 23.7 days and typically aggregates up to 198mm (7.8") of precipitation.

Daylight

In Masahuat, the average length of the day in May is 12h and 47min.
On the first day of May, sunrise is at 05:35 and sunset at 18:14. On the last day of the month, sunrise is at 05:28 and sunset at 18:22 CST.

Sunshine

In Masahuat, the average sunshine in May is 10.3h.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 6 transforms into these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

Is it hot during May?
In May, in Masahuat, the average high-temperature is 31.1°C (88°F), and the average low-temperature is 20.7°C (69.3°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in May is appraised at 40°C (104°F).
What is the average humidity in May?
The average relative humidity in May in Masahuat is 77%.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 23.7 days and typically aggregates up to 198mm (7.8") of precipitation.
How much does it rain in May?
In Masahuat, during May, the rain falls for 23.7 days and regularly aggregates up to 198mm (7.8") of precipitation.
How many hours of daylight does Masahuat have in May?
In Masahuat, the average day length in May is 12h and 47min.
When are sunrise and sunset in May?
On the first day of May, sunrise is at 05:35 and sunset at 18:14. On the last day of the month, sunrise is at 05:28 and sunset at 18:22 CST.
How many hours of sunshine does Masahuat have in May?
In May, the average sunshine duration is 10.3h.
When is the highest UV index?
January through August, October through December, with an average maximum UV index of 6, are months with the highest UV index.
How high is the UV index in May?
In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Masahuat, El Salvador
  • Average high temperature in May: 31.1°C

The warmest month (with the highest average high temperature) is April (33.2°C).
The month with the lowest average high temperature is October (27.9°C).

  • Average low temperature in May: 20.7°C

The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).

Average pressure in May
Masahuat, El Salvador
  • Average pressure in May: 1011.7mbar

The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are May and October (1011.7mbar).

Average wind speed in May
Masahuat, El Salvador
  • Average wind speed in May: 4.7km/h

The windiest month (with the highest average wind speed) is January (9km/h).
The calmest month (with the lowest average wind speed) is September (4.2km/h).

Average humidity in May
Masahuat, El Salvador
  • Average humidity in May: 77%

The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is March (63%).

Average rainfall in May
Masahuat, El Salvador
  • Average rainfall in May: 198mm

The wettest month (with the highest rainfall) is May (198mm).
The driest month (with the least rainfall) is January (2mm).

Average rainfall days in May
Masahuat, El Salvador
  • Average rainfall days in May: 23.7 days

The month with the highest number of rainy days is June (25 days).
The month with the least rainy days is January (1.9 days).

Average daylight in May /
Average sunshine in May
Masahuat, El Salvador
  • Average daylight in May: 12h and 5min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).

Average sunshine days in May
Masahuat, El Salvador
  • Average sunshine days in May: 5.7 days

The months with the most sunshine days are January and December (28.5 days).
The month with the least sunshine days is September (3.7 days).

Average UV index in May
Masahuat, El Salvador
  • Average UV index in May: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
The month with the lowest UV index is September (UV index 5).

Average cloud cover in May
Masahuat, El Salvador
  • Average cloud cover in May: 42

The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 17).

Average visibility in May
Masahuat, El Salvador
  • Average visibility in May: 8km

The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (6km).

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