September weather forecastKhafji, Saudi Arabia
September
Weather in September
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Khafji, Saudi Arabia
- Average high temperature in September: 36.8°C
The warmest month (with the highest average high temperature) is July (39.2°C).
The month with the lowest average high temperature is January (18.8°C).
- Average low temperature in September: 32.2°C
The month with the highest average low temperature is July (34.2°C).
The coldest month (with the lowest average low temperature) is January (15.2°C).
Average pressure in September
Khafji, Saudi Arabia
- Average pressure in September: 1004.5mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is July (997.1mbar).
Average wind speed in September
Khafji, Saudi Arabia
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is June (20.9km/h).
The calmest month (with the lowest average wind speed) is September (16.4km/h).
Average humidity in September
Khafji, Saudi Arabia
- Average humidity in September: 44%
The months with the highest relative humidity are January and February (53%).
The month with the lowest relative humidity is June (34%).
Average rainfall in September
Khafji, Saudi Arabia
- Average rainfall in September: 0mm
The wettest month (with the highest rainfall) is November (31mm).
The driest months (with the least rainfall) are June, July, August and September (0mm).
Average rainfall days in September
Khafji, Saudi Arabia
- Average rainfall days in September: 0 days
The months with the highest number of rainy days are March and April (5.6 days).
The months with the least rainy days are July and September (0 days).
Average sea temperature in September
Khafji, Saudi Arabia
- Average sea temperature in September: 31.4°C
The best month for swimming (with the highest average sea temperature) is August (32.7°C).
The coldest month (with the lowest average sea temperature) is February (16.8°C).
Average daylight in September /
Average sunshine in September
Khafji, Saudi Arabia
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 10h and 30min
The month with the most sunshine is August (Average sunshine: 12h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).
Average sunshine days in September
Khafji, Saudi Arabia
- Average sunshine days in September: 30 days
The month with the most sunshine days is July (31 days).
The month with the least sunshine days is April (23.3 days).
Average UV index in September
Khafji, Saudi Arabia
- Average UV index in September: 8
The months with the highest UV index are June, July and August (UV index 9).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in September
Khafji, Saudi Arabia
- Average cloud cover in September: 0
The month with the most cloud cover is November (Cloud cover 16).
The month with the least cloud cover is September (Cloud cover 0).
Average visibility in September
Khafji, Saudi Arabia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
