September weather forecastChamestan, Iran

September

Weather in September

The first month of the autumn, September, is still a warm month in Chamestan, Iran, with an average temperature ranging between max 28.6°C (83.5°F) and min 19.1°C (66.4°F).

Temperature

The arrival of September marks a slight shift to an average high-temperature of a warm 28.6°C (83.5°F) from August's 31.3°C (88.3°F). During September, the temperature tends to dip to an average of 19.1°C (66.4°F) at night.

Heat index

The heat index in September is calculated to be a tropical 31°C (87.8°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

September and November, with an average relative humidity of 67%, are the most humid months.

Rainfall

In Chamestan, in September, it is raining for 7.4 days, with typically 11mm (0.43") of accumulated precipitation. Throughout the year, in Chamestan, there are 103.7 rainfall days, and 326mm (12.83") of precipitation is accumulated.

Snowfall

In Chamestan, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September in Chamestan, Iran, sunrise is at 05:33 and sunset at 18:29. On the last day of the month, sunrise is at 05:56 and sunset at 17:46 +0330.

Sunshine

The average sunshine in September is 10.5h.

UV index

In September, the average daily maximum UV index in Chamestan is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

The average high-temperature, in September, in Chamestan, is 28.6°C (83.5°F), while the average low-temperature is 19.1°C (66.4°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 31°C (87.8°F).

The months with the highest humidity in Chamestan are September and November, with an average relative humidity of 67%.

The average relative humidity in September is 67%.

In Chamestan, in September, during 7.4 rainfall days, 11mm (0.43") of precipitation is typically accumulated.

April through October are months without snowfall.

The average day length in September in Chamestan, Iran, is 12h and 25min.

In September, on the first day of the month, sunrise is at 05:33 and sunset at 18:29. On the last day of the month, in Chamestan, sunrise is at 05:56 and sunset at 17:46 +0330.

In September, the average sunshine duration in Chamestan, Iran, is 10.5h.

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Chamestan, Iran

  • Average high temperature in September: 28.6°C

The warmest months (with the highest average high temperature) are July and August (31.3°C).
The months with the lowest average high temperature are January and February (12.8°C).

  • Average low temperature in September: 19.1°C

The month with the highest average low temperature is July (21.7°C).
The coldest month (with the lowest average low temperature) is February (4.8°C).

Average pressure in September
Chamestan, Iran

  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is December (1021.4mbar).
The month with the lowest atmospheric pressure is July (1008mbar).

Average wind speed in September
Chamestan, Iran

  • Average wind speed in September: 7.9km/h

The windiest months (with the highest average wind speed) are March, April and July (8.5km/h).
The calmest months (with the lowest average wind speed) are November and December (7.1km/h).

Average humidity in September
Chamestan, Iran

  • Average humidity in September: 67%

The months with the highest relative humidity are September and November (67%).
The month with the lowest relative humidity is May (58%).

Average rainfall in September
Chamestan, Iran

  • Average rainfall in September: 11mm

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
Chamestan, Iran

  • Average rainfall days in September: 7.4 days

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is July (5 days).

Average snowfall in September
Chamestan, Iran

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Chamestan, Iran

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 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
Chamestan, 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 30min

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 12min).

Average sunshine days in September
Chamestan, Iran

  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in September
Chamestan, 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
Chamestan, Iran

  • Average cloud cover in September: 18

The month with the most cloud cover is March (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 14).

Average visibility in September
Chamestan, Iran

  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August, September and December (10km).
The months with the lowest visibility are January, February, March, April, October and November (9km).