May weather forecast
Laguna, Costa Rica

The last month of the spring, May, is another hot month in Laguna, Costa Rica, with an average temperature varying between 30.7°C (87.3°F) and 24.6°C (76.3°F).

Temperature

Laguna's entry into May measures an average high-temperature of a still hot 30.7°C (87.3°F), closely parallel to the preceding month. In Laguna, the nighttime temperature averages to a moderately hot 24.6°C (76.3°F) during May.

Heat index

The heat index value during May is estimated at a fiery hot 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. 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 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in May is 75%.

Rainfall

In Laguna, during May, the rain falls for 25.3 days and regularly aggregates up to 175mm (6.89") of precipitation. In Laguna, during the entire year, the rain falls for 218.6 days and collects up to 1456mm (57.32") of precipitation.

Daylight

In May, the average length of the day is 12h and 36min.
On the first day of the month, sunrise is at 05:19 and sunset at 17:49. On the last day of May, sunrise is at 05:14 and sunset at 17:55 CST.

Sunshine

In May, the average sunshine is 8.7h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during May translates into these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.