May weather forecast
Cilegon, Indonesia

The last month of the autumn, May, is another tropical month in Cilegon, Indonesia, with an average temperature fluctuating between 24.8°C (76.6°F) and 31.1°C (88°F).

Temperature

The transition into May is marked with an average high-temperature of a still hot 31.1°C (88°F), showing an insignificant shift from April's 30.8°C (87.4°F). Cilegon in May anticipates an average nighttime temperature of 24.8°C (76.6°F).

Heat index

During May, the heat index is appraised at a blistering 41°C (105.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Cilegon, during May, the rain falls for 26.5 days and regularly aggregates up to 118mm (4.65") of precipitation. Throughout the year, there are 292.5 rainfall days, and 1468mm (57.8") of precipitation is accumulated.

Daylight

The average length of the day in May is 11h and 51min.
On the first day of May, sunrise is at 05:56 and sunset at 17:50. On the last day of the month, sunrise is at 05:59 and sunset at 17:47 WIB.

Sunshine

In Cilegon, the average sunshine in May is 8.9h.

UV index

February through December, 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 7 in May transforms into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.