May weather forecast
Guacimo, Costa Rica

May, the last month of the spring in Guacimo, is a hot month, with an average temperature fluctuating between 30.3°C (86.5°F) and 24.5°C (76.1°F).

Temperature

On the advent of May, Guacimo's average high-temperature exhibits a minor adjustment to a tropical 30.3°C (86.5°F) from April's 29.8°C (85.6°F). May's nights in Guacimo observe an average temperature of 24.5°C (76.1°F).

Heat index

The heat index value for May is appraised at a sweltering 38°C (100.4°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Guacimo, Costa Rica, during May, the rain falls for 17 days and regularly aggregates up to 126mm (4.96") of precipitation. Throughout the year, there are 224.1 rainfall days, and 1644mm (64.72") of precipitation is accumulated.

Daylight

In Guacimo, the average length of the day in May is 12h and 36min.
On the first day of the month, sunrise is at 05:16 and sunset at 17:46. On the last day of May, sunrise is at 05:12 and sunset at 17:53 CST.

Sunshine

In Guacimo, the average sunshine in May is 8.1h.

UV index

March through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In May, the UV index of 7 transforms into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.