May weather forecastSiwalankerto, Indonesia

Weather in May

May, the last month of the autumn in Siwalankerto, is also a hot month, with an average temperature varying between 30.8°C (87.4°F) and 25.7°C (78.3°F).

Temperature

As Siwalankerto steps into May, the average high-temperature is measured at a still tropical 30.8°C (87.4°F), displaying minor differences from April's 30.5°C (86.9°F). An average low-temperature of 25.7°C (78.3°F) marks the month of May.

Heat index

For most parts of May, the heat index is appraised at a very hot 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in May is 74%.

Rainfall

In Siwalankerto, in May, during 14.1 rainfall days, 47mm (1.85") of precipitation is typically accumulated. Throughout the year, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.

Daylight

In Siwalankerto, Indonesia, the average length of the day in May is 11h and 47min.
On the first day of the month, sunrise is at 05:30 and sunset at 17:21. On the last day of May, in Siwalankerto, Indonesia, sunrise is at 05:35 and sunset at 17:18 WIB.

Sunshine

In May, the average sunshine in Siwalankerto is 9.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during May translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.