May weather forecast
Acajutla, El Salvador

May is the maiden month of the wet season in Acajutla. The rainfall peaks dramatically to a hefty 125mm, dispersed over an average of 25 days. The overall atmosphere is predominantly rainy and humid, providing a stark contrast to the dry start of the year. There is a marked decrease in sunshine hours, and the number of days with clear skies significantly drops. Winds are for most of the month rather calm, contributing to the serene surroundings.

Temperature

Acajutla's average high-temperature in May is a still hot 30.4°C, marking an insignificant difference from the 30.6°C of April. Nights in May exhibit a minor reduction to an average low temperature of 26.4°C.

Heat index

For May, the heat index is computed to be a very hot 37°C. Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. 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 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In May, the average relative humidity in Acajutla is 73%.

Rainfall

In Acajutla, El Salvador, in May, it is raining for 25.3 days, with typically 125mm of accumulated precipitation. Throughout the year, in Acajutla, there are 183.3 rainfall days, and 831mm of precipitation is accumulated.

Sea temperature

In Acajutla, the average seawater temperature in May is 30°C.
Note: Swimming in waters heated beyond 30°C can arguably feel less refreshing.

Daylight

In May, the average length of the day is 12h and 46min.
On the first day of the month, sunrise is at 05:37 and sunset at 18:15. On the last day of May, in Acajutla, sunrise is at 05:30 and sunset at 18:23 CST.

Sunshine

In Acajutla, El Salvador, the average sunshine in May is 11h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! Reflections of sand and water make the Sun's UV rays stronger.