May weather forecast
Joya de Ceren, El Salvador

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Weather in May

Entering May brings a noticeable change, as Joya de Ceren fully steps into the rainy season. The month is marked by the highest rainfall of the year registering 151mm (5.94"), a major leap from April's 28mm (1.1"). The shift is also reflected in the increasing levels of relative humidity. Conversely, the temperature continues to navigate within the comfortably warm range. The weather pattern in May is indicative of the seasonal transition and the onset of the full fledge rainy season.

Temperature

As May takes hold, the average high-temperature is a still hot 30.4°C (86.7°F), nearly mirroring that of the previous month. In the month of May, Joya de Ceren records a consistent average low-temperature of 23.3°C (73.9°F).

Heat index

The heat index in May is calculated to be a fiery hot 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Joya de Ceren, the average relative humidity in May is 76%.

Rainfall

In Joya de Ceren, during May, the rain falls for 22.9 days and regularly aggregates up to 151mm (5.94") of precipitation. Throughout the year, there are 167.4 rainfall days, and 855mm (33.66") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 46min.
On the first day of the month, sunrise is at 05:35 and sunset at 18:13. On the last day of May, sunrise is at 05:28 and sunset at 18:21 CST.

Sunshine

In Joya de Ceren, the average sunshine in May is 10.9h.

UV index

The months with the highest UV index are January through May and July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in May transforms into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

Is it hot during May?

During May, Joya de Ceren experiences an average high-temperature of 30.4°C (86.7°F) and a low-temperature of 23.3°C (73.9°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in May is calculated to be 38°C (100.4°F).

What is the average humidity in May?

In May, the average relative humidity is 76%.

How many days does it rain in May in Joya de Ceren?

In Joya de Ceren, in May, during 22.9 rainfall days, 151mm (5.94") of precipitation is typically accumulated.

What is the average length of the day in May?

In Joya de Ceren, the average day length in May is 12h and 46min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 05:35 and sunset at 18:13. On the last day of the month, sunrise is at 05:28 and sunset at 18:21 CST.

How many hours of sunshine does Joya de Ceren have in May?

In May, the average sunshine duration in Joya de Ceren is 10.9h.

When is the highest UV index in Joya de Ceren?

The months with the highest UV index are January through May and July, with an average maximum UV index of 7.

How high is the UV index in May in Joya de Ceren?

In May, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Joya de Ceren, El Salvador

Average temperature in May - Joya de Ceren, El Salvador
  • Average high temperature in May: 30.4°C

The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (28.6°C).

  • Average low temperature in May: 23.3°C

The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).

Average pressure in May
Joya de Ceren, El Salvador

Average pressure in May - Joya de Ceren, El Salvador
  • Average pressure in May: 1011.4mbar

The month with the highest atmospheric pressure is January (1013.5mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).

Average wind speed in May
Joya de Ceren, El Salvador

Average wind speed in May - Joya de Ceren, El Salvador
  • Average wind speed in May: 6.3km/h

The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is June (6.1km/h).

Average humidity in May
Joya de Ceren, El Salvador

Average humidity in May - Joya de Ceren, El Salvador
  • Average humidity in May: 76%

The month with the highest relative humidity is September (82%).
The month with the lowest relative humidity is March (64%).

Average rainfall in May
Joya de Ceren, El Salvador

Average rainfall in May - Joya de Ceren, El Salvador
  • Average rainfall in May: 151mm

The wettest month (with the highest rainfall) is October (162mm).
The driest month (with the least rainfall) is January (1mm).

Average rainfall days in May
Joya de Ceren, El Salvador

Average rainfall days in May - Joya de Ceren, El Salvador
  • Average rainfall days in May: 22.9 days

The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is December (1.7 days).

Average daylight in May /
Average sunshine in May
Joya de Ceren, El Salvador

Average daylight in May / Average sunshine in May - Joya de Ceren, El Salvador
  • Average daylight in May: 12h and 5min

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 18min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is April (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).

Average sunshine days in May
Joya de Ceren, El Salvador

Average sunshine days in May - Joya de Ceren, El Salvador
  • Average sunshine days in May: 6.4 days

The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (4 days).

Average UV index in May
Joya de Ceren, El Salvador

Average UV index in May - Joya de Ceren, El Salvador
  • Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May and July (UV index 7).
The months with the lowest UV index are June, August, September, October, November and December (UV index 6).

Average cloud cover in May
Joya de Ceren, El Salvador

Average cloud cover in May - Joya de Ceren, El Salvador
  • Average cloud cover in May: 34

The month with the most cloud cover is September (Cloud cover 40).
The months with the least cloud cover are January and December (Cloud cover 12).

Average visibility in May
Joya de Ceren, El Salvador

Average visibility in May - Joya de Ceren, El Salvador
  • Average visibility in May: 10km

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

Joya de Ceren, El Salvador

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