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 ranging between min 18.9°C (66°F) and max 35.2°C (95.4°F).
The ideal sea water temperature of 25.8°C (78.4°F) and only 0.9 rainfall days, with 12.5mm (0.5") of accumulated rainfall, make April the best time for swimming and other water activities.

Temperature

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

Heat index

The average heat index in April 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 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, metabolic differences, clothing, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In April, the average relative humidity is 53%.

Rainfall

In April, the rain falls for 0.9 days. Throughout April, 12.5mm (0.5") of precipitation is accumulated. In Ras Al-Khaimah, United Arab Emirates, during the entire year, the rain falls for 14.3 days and collects up to 132.8mm (5.2") of precipitation.

Sea temperature

In April, the average sea 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

The average length of the day in Ras Al-Khaimah is 12.8h.

Sunshine

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

UV index

The average daily maximum UV index in April is 11. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to the UV radiation for the average person.
Note: In April, the average maximum UV index of 11 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

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

In Ras Al-Khaimah, in April, the average high-temperature is 35.2°C (95.4°F), and the average low-temperature is 18.9°C (66°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines both air temperature and relative humidity, in April is appraised 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 many days does it rain in April in Ras Al-Khaimah?

In April, the rain falls for 0.9 days. Throughout April, 12.5mm (0.5") of precipitation is accumulated.

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

In Ras Al-Khaimah, United Arab Emirates, in April, the average water temperature is 25.8°C (78.4°F). 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.

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

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

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

In April, the average sunshine is 9.5h.

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

In Ras Al-Khaimah, United Arab Emirates, the average daily maximum UV index in April is 11. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation.
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).