May weather forecast
Siquirres, Costa Rica

May, the last month of the spring in Siquirres, is a tropical month, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 24.5°C (76.1°F).

Temperature

May denotes a minimal variation in the average high-temperature to a hot 30.3°C (86.5°F) from April's 29.8°C (85.6°F). May in Siquirres is noted for a mean low-temperature of 24.5°C (76.1°F).

Heat index

The heat index value during May is calculated to be a fiery hot 38°C (100.4°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Consider that heat index readings are for situations in the shade and light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Siquirres, in May, during 17 rainfall days, 126mm (4.96") of precipitation is typically accumulated. Throughout the year, in Siquirres, Costa Rica, there are 224.1 rainfall days, and 1644mm (64.72") of precipitation is accumulated.

Daylight

The average length of the day in May in Siquirres is 12h and 35min.
On the first day of the month, sunrise is at 05:16 and sunset at 17:45. On the last day of May, in Siquirres, sunrise is at 05:11 and sunset at 17:52 CST.

Sunshine

In May, the average sunshine is 8.1h.

UV index

The months with the highest UV index in Siquirres are March through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In May, an average UV index of 7 transforms into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.