September weather forecastYuwan, Yemen
September
Weather in September
September, the first month of the autumn in Yuwan, is still a hot month, with an average temperature ranging between min 26.1°C (79°F) and max 32.5°C (90.5°F).Temperature
September's average high-temperature is a still hot 32.5°C (90.5°F), maintaining a close comparison with August's 34.6°C (94.3°F). During September, Yuwan records a consistent average nighttime temperature of 26.1°C (79°F).Heat index
For most parts of September, the heat index is evaluated at a sweltering 39°C (102.2°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Yuwan, the average relative humidity in September is 62%.Rainfall
In Yuwan, in September, during 5.8 rainfall days, 5mm (0.2") of precipitation is typically accumulated. Throughout the year, there are 37.1 rainfall days, and 66mm (2.6") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 13min.On the first day of September, sunrise is at 05:33 and sunset at 17:57. On the last day of the month, sunrise is at 05:35 and sunset at 17:36 +03.
Sunshine
In September, the average sunshine is 9.6h.UV index
The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yuwan, Yemen
- Average high temperature in September: 32.5°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: 26.1°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
Yuwan, Yemen
- Average pressure in September: 1007.2mbar
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
Yuwan, Yemen
- Average wind speed in September: 9.7km/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
Yuwan, 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
Yuwan, Yemen
- Average rainfall in September: 5mm
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
Yuwan, Yemen
- Average rainfall days in September: 5.8 days
The month with the highest number of rainy days is September (5.8 days).
The month with the least rainy days is February (1 days).
Average daylight in September /
Average sunshine in September
Yuwan, 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 18min).
- Average sunshine in September: 9h and 36min
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
Yuwan, Yemen
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is December (29.5 days).
The month with the least sunshine days is September (21.6 days).
Average UV index in September
Yuwan, 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
Yuwan, Yemen
- Average cloud cover in September: 12
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
Yuwan, 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).
