Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The average high-temperature during September registers at a still hot 32.6°C (90.7°F), maintaining a close resemblance to the previous month. An average nighttime temperature of 26.3°C (79.3°F) is recorded during September.Heat index
Throughout September, the heat index is estimated at a fiery hot 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In September, the average relative humidity is 62%.Rainfall
In Sif, in September, it is raining for 4.2 days, with typically 4mm (0.16") of accumulated precipitation. Throughout the year, there are 35.5 rainfall days, and 65mm (2.56") of precipitation is accumulated.Daylight
In Sif, the average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 05:34 and sunset at 17:58. On the last day of September, sunrise is at 05:36 and sunset at 17:36 +03.
Sunshine
In September, the average sunshine is 9.8h.UV index
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Sif have in September?
How high is the UV index in September?
Average temperature in September
Sif, Yemen
- Average high temperature in September: 32.6°C
The warmest month (with the highest average high temperature) is June (35.7°C).
The month with the lowest average high temperature is January (25.1°C).
- Average low temperature in September: 26.3°C
The month with the highest average low temperature is July (28.4°C).
The coldest month (with the lowest average low temperature) is January (17.4°C).
Average pressure in September
Sif, Yemen
- Average pressure in September: 1007.3mbar
The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is July (1003.2mbar).
Average wind speed in September
Sif, Yemen
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is July (15.3km/h).
The calmest month (with the lowest average wind speed) is December (8.5km/h).
Average humidity in September
Sif, Yemen
- Average humidity in September: 62%
The month with the highest relative humidity is January (63%).
The month with the lowest relative humidity is June (50%).
Average rainfall in September
Sif, Yemen
- Average rainfall in September: 4mm
The wettest month (with the highest rainfall) is November (13mm).
The driest months (with the least rainfall) are February and December (1mm).
Average rainfall days in September
Sif, Yemen
- Average rainfall days in September: 4.2 days
The month with the highest number of rainy days is July (5.6 days).
The month with the least rainy days is February (1 days).
Average daylight in September /
Average sunshine in September
Sif, Yemen
- Average daylight in September: 12h and 1min
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: 9h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January and February (Average sunshine: 7h and 36min).
Average sunshine days in September
Sif, Yemen
- Average sunshine days in September: 22.9 days
The month with the most sunshine days is December (29.5 days).
The month with the least sunshine days is September (22.9 days).
Average UV index in September
Sif, Yemen
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
Sif, Yemen
- Average cloud cover in September: 10
The month with the most cloud cover is July (Cloud cover 19).
The months with the least cloud cover are October and December (Cloud cover 5).
Average visibility in September
Sif, 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).
