April weather forecast
Bukit Mertajam, Malaysia

The month of April in Bukit Mertajam is characterized by a significant increase in rainfall from 3.74" in March to 5.47". The amount of daylight received persists at 12.2 hours, similar to March. The weather is predominantly rainy, often dampening the surroundings. However, despite higher rainfall, temperatures remain high, contributing to the overall humid climate. The city's weather in April embodies a true tropical rainforest climate with heavy showers and high temperatures.

Temperature

The average high-temperature during April registers at a still tropical 90.1°F, closely corresponding to the preceding month. An average low-temperature of 76.6°F is observed during the April nights.

Heat index

In April, the average heat index is evaluated at a burning hot 113°F. Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
Research indicates the heat index considers values in shaded locales and with light winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Understand that direct sun rays can influence the weather's impact, 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 do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In April, the average relative humidity in Bukit Mertajam, Malaysia, is 80%.

Rainfall

In Bukit Mertajam, during April, the rain falls for 26.9 days and regularly aggregates up to 5.47" of precipitation. In Bukit Mertajam, during the entire year, the rain falls for 294.8 days and collects up to 52.17" of precipitation.

Sea temperature

In Bukit Mertajam, the average seawater temperature in April is 86.5°F.
Note: Water temperatures higher than 86°F might not provide the relief swimmers often seek.

Daylight

In April, the average length of the day is 12h and 14min.
On the first day of the month, sunrise is at 7:16 am and sunset at 7:27 pm. On the last day of April, sunrise is at 7:06 am and sunset at 7:24 pm +08.

Sunshine

In April, the average sunshine is 8.7h.

UV index

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In April, the maximum UV index of 7 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Caution! Sand and water reflections can notably increase the UV radiation intensity.