May weather forecast
Dubai, United Arab Emirates

May in Dubai, United Arab Emirates, marks the advent of the hotter period. The weather contrasts noticeably from that in April with soaring daytime temperatures. The city experiences a scant quantity of rainfall and the sea temperature rises appreciably. The highest temperature experienced in May can go up to 35.3°C (95.5°F) with the average sea temperature hitting 28.8°C (83.8°F). This month, the thermal conditions are particularly suitable for a late-evening swim in the sea.

Temperature

The start of May signals a slight increase in the average high-temperature, moving from a hot 31.3°C (88.3°F) in April to a very hot 35.3°C (95.5°F). An average low-temperature of 29°C (84.2°F) is expected during May.

Heat index

In May, the heat index is calculated to be a blistering 40°C (104°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down 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. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

With an average relative humidity of 47%, May is the least humid month.

Rainfall

May is the last month it rains. During 0.8 rainfall days, in May, Dubai aggregates 1mm (0.04") of precipitation. In Dubai, during the entire year, the rain falls for 22.8 days and collects up to 40mm (1.57") of precipitation.

Sea temperature

In Dubai, in May, the average water temperature is 28.8°C (83.8°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

The average length of the day in May in Dubai is 13h and 22min.
On the first day of the month, sunrise is at 05:42 and sunset at 18:49. On the last day of May, in Dubai, United Arab Emirates, sunrise is at 05:28 and sunset at 19:04 +04.

Sunshine

The average sunshine in May is 12.2h.

UV index

In Dubai, the average daily maximum UV index in May is 8. A UV Index reading of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In May, an average UV index of 8 transforms into the following instructions:
Always remain cautious. Unprotected skin and eyes are prone to swift harm. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! Sand and water reflections boost the intensity of UV exposure.