May weather forecast
Pekalongan, Indonesia

The last month of the autumn, May, is also a hot month in Pekalongan, Indonesia, with temperature in the range of an average high of 30.1°C (86.2°F) and an average low of 23.2°C (73.8°F).

Temperature

With May's arrival, Pekalongan's weather records an average high-temperature of a still tropical 30.1°C (86.2°F), marking little difference from April's 30.2°C (86.4°F). Throughout May, Pekalongan records an average temperature of 23.2°C (73.8°F) at night.

Heat index

The heat index for May is computed to be a fiery hot 39°C (102.2°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived 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. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Pekalongan, the average relative humidity in May is 82%.

Rainfall

In Pekalongan, during May, the rain falls for 22.5 days and regularly aggregates up to 174mm (6.85") of precipitation. Throughout the year, there are 265.2 rainfall days, and 1898mm (74.72") of precipitation is accumulated.

Sea temperature

In Pekalongan, in May, the average water temperature is 29.7°C (85.5°F).
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.

Daylight

In May, the average length of the day is 11h and 48min.
On the first day of May in Pekalongan, Indonesia, sunrise is at 05:42 and sunset at 17:34. On the last day of the month, sunrise is at 05:46 and sunset at 17:31 WIB.

Sunshine

In Pekalongan, the average sunshine in May is 8.3h.

UV index

The months with the lowest UV index in Pekalongan are January, May through September and November, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.