May weather forecast
Boyolali, Indonesia

May, the last month of the autumn in Boyolali, is another tropical month, with an average temperature ranging between max 31.3°C (88.3°F) and min 24.5°C (76.1°F).

Temperature

At the onset of May, Boyolali records an average high-temperature of a still hot 31.3°C (88.3°F), showing little deviation from the preceding month. Boyolali's temperature in May lowers to a consistent average of 24.5°C (76.1°F) during the nights.

Heat index

For most parts of May, the heat index is appraised at an extremely hot 42°C (107.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in May in Boyolali is 79%.

Rainfall

In Boyolali, in May, it is raining for 20 days, with typically 68mm (2.68") of accumulated precipitation. Throughout the year, there are 240.7 rainfall days, and 1143mm (45") of precipitation is accumulated.

Daylight

The average length of the day in May is 11h and 47min.
On the first day of May in Boyolali, sunrise is at 05:39 and sunset at 17:30. On the last day of the month, sunrise is at 05:43 and sunset at 17:26 WIB.

Sunshine

The average sunshine in May is 9.2h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Boyolali. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.