May weather forecast
Panchimalco, El Salvador

May is the harbinger of the monsoon season in Panchimalco, as the weather in May witnesses a significant change in patterns compared to April. The highest amount of rainfall is recorded in May with an average of 234mm (9.21"). The month welcomes higher humidity, transforming the city into a lush tropical landscape. The slow descent of temperatures and heightened rain showers are in sharp contrast to April's soft showers, demonstrating Panchimalco's diverse side of weather. The May weather patterns lay out the groundwork for the upcoming monsoon months, promising enticing weather patterns for June with similarly high rainfall.

Temperature

Panchimalco registers an average high-temperature of a still tropical 30.9°C (87.6°F) with the arrival of May, showing minor deviation from the preceding month. Panchimalco, in May, witnesses an average low-temperature of 22.7°C (72.9°F).

Heat index

For May, the heat index is estimated at a very hot 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. 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. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in May is 76%.

Rainfall

May is the month with the most rainfall in Panchimalco. Rain falls for 25.5 days and accumulates 234mm (9.21") of precipitation.

Daylight

In Panchimalco, the average length of the day in May is 12h and 46min.
On the first day of the month, sunrise is at 05:34 and sunset at 18:12. On the last day of May, in Panchimalco, sunrise is at 05:28 and sunset at 18:20 CST.

Sunshine

The average sunshine in May is 10.8h.

UV index

January, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.