Ras Al-Khaimah
United Arab Emirates
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Ras Al-Khaimah, United Arab Emirates

April in Ras Al-Khaimah, United Arab Emirates, is a sweltering spring month, with average temperature fluctuating between 35.2°C (95.4°F) and 18.9°C (66°F).
The ideal sea water temperature of 25.8°C (78.4°F) and only 0.9 rainfall days, with 12.5mm (0.49") of accumulated rainfall, makes April the best time for swimming and other water activities.

Temperature

In April, the average high-temperature in Ras Al-Khaimah rises, from a warm 29.5°C (85.1°F) in March, to a sweltering 35.2°C (95.4°F). In Ras Al-Khaimah, the average low-temperature is 18.9°C (66°F).

Heat index

In April, the average heat index is estimated at an extremely hot 42.4°C (108.3°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in April is 53%.

Rainfall

In Ras Al-Khaimah, in April, during 0.9 rainfall days, 12.5mm (0.49") of precipitation is typically accumulated. Throughout the year, in Ras Al-Khaimah, there are 14.3 rainfall days, and 132.8mm (5.23") of precipitation is accumulated.

Sea temperature

In Ras Al-Khaimah, in April, the average water temperature is 25.8°C (78.4°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Ras Al-Khaimah, the average length of the day is 12.8h.

Sunshine

In Ras Al-Khaimah, the average sunshine is 9.5h.

UV index

In Ras Al-Khaimah, United Arab Emirates, the average daily maximum UV index is 11. A UV Index estimate of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 11 in April transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in April in Ras Al-Khaimah?

The average high-temperature, in April, is 35.2°C (95.4°F), while the average low-temperature is 18.9°C (66°F). In April, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines relative humidity and air temperature, is estimated at 42.4°C (108.3°F).

What is the average humidity in April in Ras Al-Khaimah?

In April, the average relative humidity is 53%.

How much does it rain in Ras Al-Khaimah in April?

In April, in Ras Al-Khaimah, the rain falls for 0.9 days. Throughout April, 12.5mm (0.49") of precipitation is accumulated.

What is the sea water temperature in April in Ras Al-Khaimah?

In Ras Al-Khaimah, the average seawater temperature in April is 25.8°C (78.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in April in Ras Al-Khaimah?

The average length of the day in April in Ras Al-Khaimah, United Arab Emirates, is 12.8h.

How many hours of sunshine does Ras Al-Khaimah have in April?

In April, the average sunshine in Ras Al-Khaimah is 9.5h.

How high is the UV index in April in Ras Al-Khaimah?

The average daily maximum UV index in April in Ras Al-Khaimah is 11. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in April - Ras Al-Khaimah, United Arab Emirates
  • Average high temperature in April: 35.2°C

The warmest month (with the highest average high temperature) is July (42.7°C).
The month with the lowest average high temperature is January (24.8°C).

  • Average low temperature in April: 18.9°C

The month with the highest average low temperature is August (28.6°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).

Average humidity in April - Ras Al-Khaimah, United Arab Emirates
  • Average humidity in April: 53%

Months with the highest relative humidity are January and December (69%).
The month with the lowest relative humidity is May (46%).

Average rainfall in April - Ras Al-Khaimah, United Arab Emirates
  • Average rainfall in April: 12.5mm

The wettest month (with the highest rainfall) is February (35.7mm).
The driest month (with the lowest rainfall) is June (0mm).

Average rainfall days in April - Ras Al-Khaimah, United Arab Emirates
  • Average rainfall days in April: 0.9 days

The month with the highest number of rainy days is March (4.7 days).
The month with the lowest number of rainy days is June (0 days).

Average sea temperature in April - Ras Al-Khaimah, United Arab Emirates
  • Average sea temperature in April: 25.8°C

The best month for swimming (with the highest average sea temperature) is August (33.2°C).
The coldest month (with the lowest average sea temperature) is February (22.4°C).

Average daylight in April / Average sunshine in April - Ras Al-Khaimah, United Arab Emirates
  • Average daylight in April: 12.8h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.5h).

  • Average sunshine in April: 9.5h

The month with most sunshine is May (Average sunshine: 11.1h).
The month with least sunshine is December (Average sunshine: 7.6h).

Average UV index in April - Ras Al-Khaimah, United Arab Emirates
  • Average UV index in April: 11

Months with the highest UV index are May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 5).