September weather forecast
Khafji, Saudi Arabia

Giving respite from the prevailing hot summer, September initiates a cooler phase in Khafji. Intriguingly, the month of September records no rainfall, maintaining the dry phase since May. Enhanced by sea temperatures of 31.4°C (88.5°F) and ample daylight, the pleasant atmosphere is suitable for various recreational pursuits. The presence of slightly cooler winds, blowing at a reduced average of 16.4km/h (10.2mph), contributes to the delightful weather. As the sun retreats, the UV index begins to mildly dip down to 8.

Temperature

The onset of September in Khafji, Saudi Arabia, manifests an average high-temperature of a still torrid 36.8°C (98.2°F), demonstrating a minor variation from the preceding month. Khafji sees a minor drop to an average minimum temperature of 32.2°C (90°F) during the night in the month of September.

Heat index

The average heat index in September is computed to be a scorching 42°C (107.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Khafji, the average relative humidity in September is 44%.

Rainfall

In Khafji, rain does not fall in June through September.

Sea temperature

In September, the average sea temperature in Khafji is 31.4°C (88.5°F).
Note: The ideal feeling of cooling down in water can be lost when the temperature surpasses 30°C (86°F).

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 05:24 and sunset at 18:07. On the last day of September, sunrise is at 05:38 and sunset at 17:33 +03.

Sunshine

In Khafji, the average sunshine in September is 10.5h.

UV index

In Khafji, the average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily UV index of 8 turns into the following recommendations:
Protection should always be a priority. Skin and eyes are vulnerable without it. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflections of sand and water make the Sun's UV rays stronger.