September weather forecastAri, Iran
September
Weather in September
The first month of the autumn, September, is still a tropical month in Ari, Iran, with an average temperature fluctuating between 19.3°C (66.7°F) and 30.3°C (86.5°F).Temperature
Upon the onset of September, Ari witnesses an average high-temperature of a still hot 30.3°C (86.5°F), showing a close resemblance to the prior month. Throughout September, the temperature tends to fall to a consistent average low of 19.3°C (66.7°F).Heat index
September's mean heat index is evaluated at a hot 34°C (93.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Ari, the average relative humidity in September is 64%.Rainfall
In Ari, during September, the rain falls for 6.8 days and regularly aggregates up to 16mm (0.63") of precipitation. In Ari, Iran, during the entire year, the rain falls for 80 days and collects up to 303mm (11.93") of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:31 and sunset at 18:27. On the last day of the month, sunrise is at 05:53 and sunset at 17:44 +0330.
Sunshine
In Ari, the average sunshine in September is 10.2h.UV index
In Ari, Iran, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ari, Iran
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is August (33.2°C).
The month with the lowest average high temperature is February (13.6°C).
- Average low temperature in September: 19.3°C
The months with the highest average low temperature are July and August (21.8°C).
The coldest month (with the lowest average low temperature) is February (4.8°C).
Average pressure in September
Ari, Iran
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is July (1007.8mbar).
Average wind speed in September
Ari, Iran
- Average wind speed in September: 7.6km/h
The windiest months (with the highest average wind speed) are June and July (8.2km/h).
The calmest months (with the lowest average wind speed) are November and December (6.6km/h).
Average humidity in September
Ari, Iran
- Average humidity in September: 64%
The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are May and June (58%).
Average rainfall in September
Ari, Iran
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is October (56mm).
The driest month (with the least rainfall) is June (7mm).
Average rainfall days in September
Ari, Iran
- Average rainfall days in September: 6.8 days
The month with the highest number of rainy days is March (8.8 days).
The month with the least rainy days is June (4.9 days).
Average snowfall in September
Ari, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Ari, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Ari, Iran
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 10h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in September
Ari, Iran
- Average sunshine days in September: 20.8 days
The month with the most sunshine days is December (24.4 days).
The month with the least sunshine days is August (20.5 days).
Average UV index in September
Ari, Iran
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, March and December (UV index 3).
Average cloud cover in September
Ari, Iran
- Average cloud cover in September: 20
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 16).
Average visibility in September
Ari, Iran
- Average visibility in September: 9km
The months with the highest visibility are June and December (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October and November (9km).
