May weather forecast
Vara Blanca, Costa Rica

The last month of the spring, May, is also a moderately hot month in Vara Blanca, Costa Rica, with temperature in the range of an average low of 26.2°C (79.2°F) and an average high of 29.5°C (85.1°F).

Temperature

May's arrival brings an average high-temperature of a warm 29.5°C (85.1°F), demonstrating subtle variation from the preceding month. In Vara Blanca, May nights experience a modest descent in temperature from daily peaks, cooling down to an average of 26.2°C (79.2°F).

Heat index

For most parts of May, the heat index is computed to be a very hot 35°C (95°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in May is 77%.

Rainfall

In May, in Vara Blanca, the rain falls for 25.3 days. Throughout May, 201mm (7.91") of precipitation is accumulated. Throughout the year, in Vara Blanca, there are 236.2 rainfall days, and 1501mm (59.09") of precipitation is accumulated.

Daylight

In Vara Blanca, the average length of the day in May is 12h and 34min.
On the first day of May, sunrise is at 05:20 and sunset at 17:48. On the last day of the month, sunrise is at 05:15 and sunset at 17:55 CST.

Sunshine

In May, the average sunshine is 8.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Vara Blanca. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.