September weather forecastAli Hoseyni, Iran
September
Weather in September
The first month of the autumn, September, is still a very hot month in Ali Hoseyni, Iran, with an average temperature fluctuating between 31.8°C (89.2°F) and 37.6°C (99.7°F).Temperature
September brings an average high-temperature of a still torrid 37.6°C (99.7°F), showing a slight difference from August's 39.6°C (103.3°F). During September in Ali Hoseyni, the average low-temperature is recorded at a hot 31.8°C (89.2°F).Heat index
For September, the heat index is estimated at a blazing hot 45°C (113°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In September, the average relative humidity is 45%.Rainfall
In Ali Hoseyni, rain does not fall in June through September.Daylight
The average length of the day in September in Ali Hoseyni is 12h and 20min.On the first day of the month, sunrise is at 05:43 and sunset at 18:26. On the last day of September, sunrise is at 05:57 and sunset at 17:52 +0330.
Sunshine
In Ali Hoseyni, the average sunshine in September is 11.8h.UV index
The average daily maximum UV index in September in Ali Hoseyni is 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 8 in September leads to these recommendations:
Without proper safety measures, skin and eyes can be quickly harmed. Be sure to protect yourself. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ali Hoseyni, Iran
- Average high temperature in September: 37.6°C
The warmest month (with the highest average high temperature) is July (39.7°C).
The month with the lowest average high temperature is January (19.9°C).
- Average low temperature in September: 31.8°C
The month with the highest average low temperature is August (33.9°C).
The coldest month (with the lowest average low temperature) is January (15.5°C).
Average pressure in September
Ali Hoseyni, Iran
- Average pressure in September: 1005.1mbar
The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is July (997.5mbar).
Average wind speed in September
Ali Hoseyni, Iran
- Average wind speed in September: 13.4km/h
The windiest month (with the highest average wind speed) is June (18.9km/h).
The calmest month (with the lowest average wind speed) is October (13.1km/h).
Average humidity in September
Ali Hoseyni, Iran
- Average humidity in September: 45%
The month with the highest relative humidity is January (53%).
The month with the lowest relative humidity is June (36%).
Average rainfall in September
Ali Hoseyni, Iran
- Average rainfall in September: 0mm
The wettest month (with the highest rainfall) is November (41mm).
The driest months (with the least rainfall) are June, July, August and September (0mm).
Average rainfall days in September
Ali Hoseyni, Iran
- Average rainfall days in September: 0 days
The month with the highest number of rainy days is November (5.7 days).
The months with the least rainy days are June and September (0 days).
Average daylight in September /
Average sunshine in September
Ali Hoseyni, Iran
- 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 18min).
- Average sunshine in September: 11h and 48min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in September
Ali Hoseyni, Iran
- Average sunshine days in September: 30 days
The month with the most sunshine days is July (30.9 days).
The month with the least sunshine days is November (23.7 days).
Average UV index in September
Ali Hoseyni, Iran
- Average UV index in September: 8
The months with the highest UV index are May, June, July and August (UV index 9).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Ali Hoseyni, Iran
- Average cloud cover in September: 1
The months with the most cloud cover are January and February (Cloud cover 17).
The months with the least cloud cover are June and September (Cloud cover 1).
Average visibility in September
Ali Hoseyni, Iran
- 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).





