May weather forecast
Cilandak, Indonesia

The last month of the autumn, May, is also a hot month in Cilandak, Indonesia, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 31.1°C (88°F).

Temperature

The arrival of May brings an average high-temperature of a still hot 31.1°C (88°F), subtly diverging from April's 30.8°C (87.4°F). Cilandak's average low-temperature for the month of May records at a moderately hot 25.5°C (77.9°F).

Heat index

In May, the average heat index is estimated at a torrid 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Cilandak, the average relative humidity in May is 73%.

Rainfall

In May, the rain falls for 22.1 days. Throughout May, 80mm (3.15") of precipitation is accumulated. In Cilandak, during the entire year, the rain falls for 257.1 days and collects up to 991mm (39.02") of precipitation.

Daylight

In Cilandak, the average length of the day in May is 11h and 50min.
On the first day of May, sunrise is at 05:53 and sunset at 17:46. On the last day of the month, sunrise is at 05:57 and sunset at 17:44 WIB.

Sunshine

The average sunshine in May is 9.2h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.