May weather forecastSerang, Indonesia
May
Weather in May
Serang's weather climbs into its pinnacle as we move into May. With a dip in average rainfall to 102mm (4.02"), it is one of the drier months for the city. Typical humidity and temperature fluctuations remain minuscule, displaying no significant changes that might disrupt daily life. The decline in rainfall continues into June, progressively transiting the city towards its driest mid-year months.Temperature
The transition into May in Serang, Indonesia, reveals an average high-temperature of a still hot 30.9°C (87.6°F), mirroring a close resemblance to April. During May, Serang's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 26°C (78.8°F).Heat index
During May, the heat index is evaluated at a fiery hot 39°C (102.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In May, the average relative humidity in Serang is 76%.Rainfall
In May, in Serang, the rain falls for 24.7 days. Throughout May, 102mm (4.02") of precipitation is accumulated. Throughout the year, in Serang, there are 271.6 rainfall days, and 1261mm (49.65") of precipitation is accumulated.Daylight
In Serang, the average length of the day in May is 11h and 50min.On the first day of May in Serang, sunrise is at 05:55 and sunset at 17:49. On the last day of the month, sunrise is at 05:59 and sunset at 17:46 WIB.
Sunshine
In May, the average sunshine in Serang is 8.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Serang, Indonesia. 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 threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 7 in May translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Serang, Indonesia
- Average high temperature in May: 30.9°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is January (29.6°C).
- Average low temperature in May: 26°C
The months with the highest average low temperature are May and November (26°C).
The coldest month (with the lowest average low temperature) is August (24.5°C).
Average pressure in May
Serang, Indonesia
- Average pressure in May: 1009.7mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in May
Serang, Indonesia
- Average wind speed in May: 7.4km/h
The windiest months (with the highest average wind speed) are January and December (11.3km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).
Average humidity in May
Serang, Indonesia
- Average humidity in May: 76%
The months with the highest relative humidity are February and March (78%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in May
Serang, Indonesia
- Average rainfall in May: 102mm
The wettest months (with the highest rainfall) are January and February (180mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in May
Serang, Indonesia
- Average rainfall days in May: 24.7 days
The month with the highest number of rainy days is January (28.8 days).
The month with the least rainy days is August (11.3 days).
Average daylight in May /
Average sunshine in May
Serang, Indonesia
- Average daylight in May: 11h and 48min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 24min).
The months with the least sunshine are June and July (Average sunshine: 7h and 12min).
Average sunshine days in May
Serang, Indonesia
- Average sunshine days in May: 3.8 days
The month with the most sunshine days is August (16.9 days).
The month with the least sunshine days is January (0.6 days).
Average UV index in May
Serang, Indonesia
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in May
Serang, Indonesia
- Average cloud cover in May: 33
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are August and September (Cloud cover 23).
Average visibility in May
Serang, Indonesia
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





