September weather forecast and climate
Chah Ab, Iran

The first month of the autumn, September, is still a warm month in Chah Ab, Iran, with average temperature fluctuating between 12.4°C (54.3°F) and 23.3°C (73.9°F).

Temperature

In Chah Ab, the average high-temperature marginally drops, from 26.8°C (80.2°F) in August, to a still warm 23.3°C (73.9°F). In Chah Ab, the average low-temperature is 12.4°C (54.3°F).

Humidity

The average relative humidity in Chah Ab is 31%.

Rainfall

July through September are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 1mm (0.04") of rain.

Snowfall

In Chah Ab snow does not fall in May through October.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Chah Ab, the average sunshine is 10.2h.

UV index

In Chah Ab, Iran, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Chah Ab?

In September, in Chah Ab, Iran, the average high-temperature is 23.3°C (73.9°F), and the average low-temperature is 12.4°C (54.3°F).

What is the average humidity in September in Chah Ab?

The average relative humidity in September in Chah Ab, Iran, is 31%.

How much does it rain in Chah Ab in September?

In Chah Ab, in September, during 1.3 rainfall days, 1mm (0.04") of precipitation is typically accumulated.

What is the driest month in Chah Ab?

Months with the least rainfall in Chah Ab, Iran, are July through September Rain falls for 1.3 days and accumulates 1mm (0.04") of rain.

When it does not snow in Chah Ab?

May through October are months without snowfall.

What is the average length of the day in September in Chah Ab?

In Chah Ab, the average length of the day in September is 12.4h.

How many hours of sunshine does Chah Ab have in September?

The average sunshine in September in Chah Ab is 10.2h.

How high is the UV index in September in Chah Ab?

In September, the average daily maximum UV index in Chah Ab is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Chah Ab, Iran
  • Average high temperature in September: 23.3°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in September: 12.4°C

The month with the highest average low temperature is July (18.3°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).

Average pressure in September - Chah Ab, Iran
  • Average pressure in September: 1014.3mbar

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is July (1008mbar).

Average wind speed in September - Chah Ab, Iran
  • Average wind speed in September: 9.9km/h

The windiest month (with the highest average wind speed) is July (15.2km/h).
The calmest month (with the lowest average wind speed) is November (8.5km/h).

Average humidity in September - Chah Ab, Iran
  • Average humidity in September: 31%

The month with the highest relative humidity is February (70%).
The month with the lowest relative humidity is July (24%).

Average rainfall in September - Chah Ab, Iran
  • Average rainfall in September: 1mm

The wettest month (with the highest rainfall) is May (32mm).
The driest months (with the least rainfall) are July, August and September (1mm).

Average rainfall days in September - Chah Ab, Iran
  • Average rainfall days in September: 1.3 days

The month with the highest number of rainy days is April (10.7 days).
The month with the least rainy days is August (0.7 days).

Average snowfall in September - Chah Ab, Iran
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (93mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September - Chah Ab, Iran
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.9 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Chah Ab, Iran
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 10.2h

The month with the most sunshine is August (Average sunshine: 12.4h).
The month with the least sunshine is February (Average sunshine: 6.5h).

Average sunshine days in September - Chah Ab, Iran
  • Average sunshine days in September: 27.4 days

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is April (17.5 days).

Average UV index in September - Chah Ab, Iran
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September - Chah Ab, Iran
  • Average cloud cover in September: 5

The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 4).

Average visibility in September - Chah Ab, Iran
  • Average visibility in September: 10km

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