September weather forecastDeh Dalian, Iran

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Deh Dalian, Iran, with an average temperature ranging between min 12.6°C (54.7°F) and max 27.6°C (81.7°F).

Temperature

With September's onset, the weather reveals a slight temperature decrease, transitioning from a tropical 31.8°C (89.2°F) in August to a warm 27.6°C (81.7°F). A significant temperature decrease to an average a cool 12.6°C (54.7°F) characterizes Deh Dalian's nighttime temperatures during September.

Humidity

In September, the average relative humidity in Deh Dalian is 25%.

Rainfall

September is the only month when rain does not fall in Deh Dalian, Iran.

Snowfall

May through October are months without snowfall in Deh Dalian.

Daylight

The average length of the day in September in Deh Dalian is 12h and 23min.
On the first day of the month, sunrise is at 05:48 and sunset at 18:41. On the last day of September, in Deh Dalian, Iran, sunrise is at 06:09 and sunset at 18:00 +0330.

Sunshine

In Deh Dalian, the average sunshine in September is 11.1h.

UV index

The average daily maximum UV index in September in Deh Dalian is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

The high-temperature in Deh Dalian, Iran, during September is 27.6°C (81.7°F) and the low-temperature is 12.6°C (54.7°F).

In September, the average relative humidity in Deh Dalian is 25%.

The only month without rainfall in Deh Dalian is September.

In September, it doesn't rain. August is the latest month when it rains.

May through October are months without snowfall in Deh Dalian.

The average day length in September is 12h and 23min.

In September, on the first day of the month, sunrise is at 05:48 and sunset at 18:41. On the last day of the month, in Deh Dalian, Iran, sunrise is at 06:09 and sunset at 18:00 +0330.

In September, the average sunshine duration in Deh Dalian is 11.1h.

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate 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
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Deh Dalian, Iran

  • Average high temperature in September: 27.6°C

The warmest month (with the highest average high temperature) is July (32.9°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 12.6°C

The month with the highest average low temperature is July (18°C).
The coldest month (with the lowest average low temperature) is January (-4°C).

Average pressure in September
Deh Dalian, Iran

  • Average pressure in September: 1013mbar

The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is July (1006.4mbar).

Average wind speed in September
Deh Dalian, Iran

  • Average wind speed in September: 9km/h

The windiest month (with the highest average wind speed) is March (12.7km/h).
The calmest month (with the lowest average wind speed) is November (8.3km/h).

Average humidity in September
Deh Dalian, Iran

  • Average humidity in September: 25%

The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is July (21%).

Average rainfall in September
Deh Dalian, Iran

  • Average rainfall in September: 0mm

The wettest month (with the highest rainfall) is March (44mm).
The driest month (with the least rainfall) is September (0mm).

Average rainfall days in September
Deh Dalian, Iran

  • Average rainfall days in September: 0.6 days

The month with the highest number of rainy days is April (10.4 days).
The month with the least rainy days is September (0.6 days).

Average snowfall in September
Deh Dalian, Iran

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (194mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Deh Dalian, Iran

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Deh Dalian, Iran

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 11h and 6min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).

Average sunshine days in September
Deh Dalian, Iran

  • Average sunshine days in September: 28.7 days

The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is April (17.8 days).

Average UV index in September
Deh Dalian, Iran

  • Average UV index in September: 5

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

Average cloud cover in September
Deh Dalian, Iran

  • Average cloud cover in September: 4

The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 4).

Average visibility in September
Deh Dalian, Iran

  • Average visibility in September: 10km

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