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 snowfall in September
- Average snowfall 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 start of September marks an average high-temperature of a still tropical 30°C (86°F), hardly distinguishable from the conditions in August. The temperature lowers to an average of 19.8°C (67.6°F) during September nights.Heat index
September's average heat index is calculated to be a tropical 34°C (93.2°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.Consider that heat index readings are for situations in the shade and light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity is 64%.Rainfall
In Shirdari, in September, it is raining for 7 days, with typically 19mm (0.75") of accumulated precipitation. In Shirdari, during the entire year, the rain falls for 101.4 days and collects up to 413mm (16.26") of precipitation.Snowfall
In Shirdari, Iran, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:26 and sunset at 18:23. On the last day of September, sunrise is at 05:50 and sunset at 17:40 +0330.
Sunshine
In September, the average sunshine is 10.5h.UV index
In Shirdari, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Shirdari have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Shirdari, Iran
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is August (32.8°C).
The months with the lowest average high temperature are January and February (13.6°C).
- Average low temperature in September: 19.8°C
The months with the highest average low temperature are July and August (22.3°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).
Average pressure in September
Shirdari, Iran
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is July (1007.9mbar).
Average wind speed in September
Shirdari, Iran
- Average wind speed in September: 8.2km/h
The windiest months (with the highest average wind speed) are June and July (9km/h).
The calmest months (with the lowest average wind speed) are November and December (7.5km/h).
Average humidity in September
Shirdari, Iran
- Average humidity in September: 64%
The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is June (59%).
Average rainfall in September
Shirdari, Iran
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is October (64mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Shirdari, Iran
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is June (5.3 days).
Average snowfall in September
Shirdari, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is February (51mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Shirdari, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 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
Shirdari, Iran
- Average daylight in September: 12h and 2min
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 3min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in September
Shirdari, Iran
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is May (15.9 days).
Average UV index in September
Shirdari, 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 and March (UV index 3).
Average cloud cover in September
Shirdari, Iran
- Average cloud cover in September: 17
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Shirdari, Iran
- Average visibility in September: 10km
The months with the highest visibility are January, June, August, September, October and December (10km).
The months with the lowest visibility are February, March, April, May, July and November (9km).
