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

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

The first month of the autumn, September, is also a scorching month in Ras Al-Khaimah, United Arab Emirates, with average temperature fluctuating between 24.7°C (76.5°F) and 40.1°C (104.2°F).

Temperature

In September, the average high-temperature is relatively the same as in August - an extremely hot 40.1°C (104.2°F). In Ras Al-Khaimah, in September, the average low-temperature is 24.7°C (76.5°F).

Heat index

In September, the average heat index is estimated at a life-threatening hot 60.5°C (140.9°F). These weather conditions are considered as extremely dangerous, as heatstroke is imminent.
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', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like wind, clothing, differences in body mass, height, and shape, and activity influence one's weather impression. 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 especially crucial for babies and toddlers. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through 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 exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 57%.

Rainfall

In September, the rain falls for 0.1 days. Throughout September, 1.3mm (0.1") 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 Ras Al-Khaimah, the average water temperature is 32.6°C (90.7°F).
Note: The water temperature above 30°C (86°F) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

Daylight

The average length of the day in Ras Al-Khaimah is 12.3h.

Sunshine

In Ras Al-Khaimah, the average sunshine in September is 10h.

UV index

The average daily maximum UV index in Ras Al-Khaimah is 11. A UV Index of 11, and more, symbolizes an extreme threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 11 transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. 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 reflection of water and sand dramatically increases exposure to the UV rays.

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

In Ras Al-Khaimah, United Arab Emirates, in September, the average high-temperature is 40.1°C (104.2°F), and the average low-temperature is 24.7°C (76.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in September is appraised at 60.5°C (140.9°F).

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

In Ras Al-Khaimah, the average relative humidity in September is 57%.

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

In Ras Al-Khaimah, in September, during 0.1 rainfall days, 1.3mm (0.1") of precipitation is typically accumulated.

How warm is the water in September in Ras Al-Khaimah?

In Ras Al-Khaimah, United Arab Emirates, the average seawater temperature in September is 32.6°C (90.7°F). The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

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

In Ras Al-Khaimah, the average length of the day in September is 12.3h.

How long on average sun shines in September in Ras Al-Khaimah?

In September, the average sunshine in Ras Al-Khaimah, United Arab Emirates, is 10h.

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

In Ras Al-Khaimah, United Arab Emirates, the average daily maximum UV index in September is 11. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to the UV radiation.
Average temperature in September - Ras Al-Khaimah, United Arab Emirates
  • Average high temperature in September: 40.1°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 September: 24.7°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 September - Ras Al-Khaimah, United Arab Emirates
  • Average humidity in September: 57%

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

Average rainfall in September - Ras Al-Khaimah, United Arab Emirates
  • Average rainfall in September: 1.3mm

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 September - Ras Al-Khaimah, United Arab Emirates
  • Average rainfall days in September: 0.1 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 September - Ras Al-Khaimah, United Arab Emirates
  • Average sea temperature in September: 32.6°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 September / Average sunshine in September - Ras Al-Khaimah, United Arab Emirates
  • Average daylight in September: 12.3h

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 September: 10h

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 September - Ras Al-Khaimah, United Arab Emirates
  • Average UV index in September: 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).