May, embarking on the summer season, singles itself out with hot temperatures peaking at an impressive 34.1°C (93.4°F). However, the higher temperature does not reflect into increased rainfall, remaining minimized. Greater daylight and the warm sea make for a perfect premise for water-based activities. Sunglasses and sunscreen become essentials, given the extended hours of sunshine. In terms of relative humidity, the increase becomes less conspicuous, leading to comfortable, though noticeably warmer, outdoor experiences.
Temperature
With the arrival of May,
Aden's average high-temperature registers at a still tropical 34.1°C (93.4°F), indicating a subtle variation from the previous month. An average nighttime temperature of 27.7°C (81.9°F) is noted during the month of May.
Heat index
In May, the average heat index is estimated at a burning hot 48°C (118.4°F).
Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.
Be advised, the heat index considers values for conditions in shade and with a light breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
In Aden, the average relative humidity in May is 72%.
Rainfall
May is the last month it rains. During 1 rainfall days, in May, Aden aggregates 1mm (0.04") of precipitation. Throughout the year, there are 21 rainfall days, and 37mm (1.46") of precipitation is accumulated.
Sea temperature
In Aden, in May, the average water temperature is 30.5°C (86.9°F).
Note: Partaking in water activities can feel less exhilarating when temperatures climb over 30°C (86°F).
Daylight
The average length of the day in May is 12h and 43min.
On the first day of the month, sunrise is at 05:39 and sunset at 18:14. On the last day of May, sunrise is at 05:32 and sunset at 18:22 +03.
Sunshine
May has the most sunshine of the year, with an average of 9.8h of sunshine.
UV index
February through
September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 12 during May translates into these guidelines:
Enforce every vital precaution. Those with light skin could endure burns in a matter of 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. Always opt for UVA and UVB-resistant sunglasses on radiant days. Broad-spectrum SPF 30+ sunscreen must be generously applied and reapplied every two hours or post any outdoor activity or swim. Caution! The Sun's UV intensity grows with reflections off sand and water.