May weather forecast
Bukit Mertajam, Malaysia

May weather in Bukit Mertajam, Malaysia presents a lower rainfall quantity, dropping to 127mm (5") from April's 139mm (5.47"). Meanwhile, the pattern of high temperatures continues unabated, lending the city its tropical vibe. The conclusion of the month sees an increase in daylight hours to 12.4 hours, offering ample opportunities for outdoor activities. The frequency of rains decreases slightly, ushering in brighter days. Bukit Mertajam remains bathed in a humid and warm atmosphere as May makes its exit.

Temperature

As Bukit Mertajam transitions from April to May, the average high-temperatures adjust to a still hot 32.5°C (90.5°F), nearly the same as the previous 32.3°C (90.1°F). May is noted for a mean low-temperature of 24.8°C (76.6°F).

Heat index

May's mean heat index is estimated at a life-threatening hot 46°C (114.8°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in May is 79%.

Rainfall

In May, the rain falls for 26.6 days. Throughout May, 127mm (5") of precipitation is accumulated. In Bukit Mertajam, during the entire year, the rain falls for 294.8 days and collects up to 1325mm (52.17") of precipitation.

Sea temperature

The month with the warmest seawater in Bukit Mertajam is May, with an average sea temperature of 30.5°C (86.9°F).
Note: Engaging in intense water activities can feel less refreshing when the temperature is above 30°C (86°F).

Daylight

The average length of the day in May in Bukit Mertajam is 12h and 22min.
On the first day of May, sunrise is at 7:05 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 7:28 pm +08.

Sunshine

In Bukit Mertajam, the average sunshine in May is 8.6h.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index in Bukit Mertajam. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.