September weather forecastSayfaf, Yemen
September
Weather in September
September, the first month of the autumn in Sayfaf, is also a fiery hot month, with an average temperature varying between 31.2°C (88.2°F) and 35.8°C (96.4°F).Temperature
Sayfaf's shift into September sets the average high-temperature at a still sweltering 35.8°C (96.4°F), a figure that deviates only slightly from August's 36.2°C (97.2°F). Sayfaf in September experiences a minor decline in temperature, with an average low of 31.2°C (88.2°F) at night.Heat index
The average heat index in September is computed to be a burning hot 48°C (118.4°F). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to 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.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity is 61%.Rainfall
In Sayfaf, in September, it is raining for 2.6 days, with typically 4mm (0.16") of accumulated precipitation. In Sayfaf, during the entire year, the rain falls for 45.7 days and collects up to 86mm (3.39") of precipitation.Daylight
In Sayfaf, the average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 05:56 and sunset at 18:21. On the last day of the month, sunrise is at 05:59 and sunset at 17:59 +03.
Sunshine
In Sayfaf, the average sunshine in September is 11.9h.UV index
April through October, with an average maximum UV index of 8, are months with the highest UV index. A UV Index reading of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 8 translates into these guidelines:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sayfaf, Yemen
- Average high temperature in September: 35.8°C
The warmest month (with the highest average high temperature) is July (36.9°C).
The month with the lowest average high temperature is January (28.8°C).
- Average low temperature in September: 31.2°C
The month with the highest average low temperature is August (31.5°C).
The coldest month (with the lowest average low temperature) is January (24.3°C).
Average pressure in September
Sayfaf, Yemen
- Average pressure in September: 1007.6mbar
The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is July (1005.1mbar).
Average wind speed in September
Sayfaf, Yemen
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is February (19.5km/h).
The calmest month (with the lowest average wind speed) is September (13.5km/h).
Average humidity in September
Sayfaf, Yemen
- Average humidity in September: 61%
The months with the highest relative humidity are January and February (68%).
The month with the lowest relative humidity is July (55%).
Average rainfall in September
Sayfaf, Yemen
- Average rainfall in September: 4mm
The wettest month (with the highest rainfall) is August (16mm).
The driest months (with the least rainfall) are April and June (2mm).
Average rainfall days in September
Sayfaf, Yemen
- Average rainfall days in September: 2.6 days
The month with the highest number of rainy days is January (5.8 days).
The month with the least rainy days is June (1 days).
Average daylight in September /
Average sunshine in September
Sayfaf, Yemen
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 11h and 54min
The month with the most sunshine is May (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Sayfaf, Yemen
- Average sunshine days in September: 25.3 days
The month with the most sunshine days is June (28.6 days).
The months with the least sunshine days are January and November (23.1 days).
Average UV index in September
Sayfaf, Yemen
- Average UV index in September: 8
The months with the highest UV index are April, May, June, July, August, September and October (UV index 8).
The months with the lowest UV index are January, February, March, November and December (UV index 7).
Average cloud cover in September
Sayfaf, Yemen
- Average cloud cover in September: 11
The months with the most cloud cover are July and August (Cloud cover 26).
The month with the least cloud cover is October (Cloud cover 6).
Average visibility in September
Sayfaf, Yemen
- 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).
