When
April arrives in
Dhahran, the city witnesses a stark contrast in weather patterns from the preceding months. The few showers of
March make way for more arid conditions, which are more typical of the region. Temperatures in Dhahran rise substantially in April, heralding the onset of an intense summer season. The increase in temperature and decrease in rainfall are the two key weather-related trends visible in April. Furthermore, as April transitions into
May, the weather can be expected to get progressively dryer and hotter.
Temperature
Dhahran in April shows a temperature shift, moving from an average high of a moderately hot 25.6°C (78.1°F) in March to a hot 32.4°C (90.3°F). Dhahran, in April, experiences a marked contrast from daytime zeniths to a steady average low-temperature of 19.7°C (67.5°F).
Heat index
Throughout April, the heat index is calculated to be a torrid 36°C (96.8°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially vital to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in April in Dhahran is 55%.
Rainfall
In Dhahran, in April, during 7.6 rainfall days, 4mm (0.16") of precipitation is typically accumulated. In Dhahran, during the entire year, the rain falls for 62.7 days and collects up to 108mm (4.25") of precipitation.
Daylight
The average length of the day in April in Dhahran is 12h and 47min.
On the first day of April, sunrise is at 05:30 and sunset at 17:56. On the last day of the month, sunrise is at 05:02 and sunset at 18:11 +03.