September weather forecastNili, Iran

September

Weather in September

September, the first month of the autumn in Nili, is still a tropical month, with temperature in the range of an average low of 19.3°C (66.7°F) and an average high of 30.9°C (87.6°F).

Temperature

Nili in September experiences a gentle temperature dip, with average high-temperatures reducing from 34.4°C (93.9°F) in August to a still hot 30.9°C (87.6°F). Throughout September, Nili records an average temperature of 19.3°C (66.7°F) at night.

Heat index

For September, the heat index is computed to be a tropical 31°C (87.8°F). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

The average relative humidity in September is 43%.

Rainfall

In Nili, in September, it is raining for 2.6 days, with typically 3mm (0.12") of accumulated precipitation. In Nili, during the entire year, the rain falls for 64.8 days and collects up to 186mm (7.32") of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Nili, Iran, is 12h and 25min.
On the first day of September, sunrise is at 05:19 and sunset at 18:17. On the last day of the month, sunrise is at 05:43 and sunset at 17:33 +0330.

Sunshine

In Nili, the average sunshine in September is 10.9h.

UV index

In Nili, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

The average high-temperature, in September, in Nili, is 30.9°C (87.6°F), while the average low-temperature is 19.3°C (66.7°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is computed to be 31°C (87.8°F).

In September, the average relative humidity is 43%.

In Nili, during September, the rain falls for 2.6 days and regularly aggregates up to 3mm (0.12") of precipitation.

April through October are months without snowfall in Nili, Iran.

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

On the first day of September, sunrise is at 05:19 and sunset at 18:17. On the last day of the month, sunrise is at 05:43 and sunset at 17:33 +0330.

In Nili, the average sunshine duration in September is 10.9h.

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Nili, Iran

  • Average high temperature in September: 30.9°C

The warmest month (with the highest average high temperature) is July (35.8°C).
The month with the lowest average high temperature is January (12.2°C).

  • Average low temperature in September: 19.3°C

The month with the highest average low temperature is July (23.4°C).
The coldest months (with the lowest average low temperature) are January and February (4.2°C).

Average pressure in September
Nili, Iran

  • Average pressure in September: 1013.8mbar

The month with the highest atmospheric pressure is December (1022mbar).
The month with the lowest atmospheric pressure is July (1008.1mbar).

Average wind speed in September
Nili, Iran

  • Average wind speed in September: 7.5km/h

The windiest month (with the highest average wind speed) is July (9km/h).
The calmest month (with the lowest average wind speed) is November (6.7km/h).

Average humidity in September
Nili, Iran

  • Average humidity in September: 43%

The month with the highest relative humidity is February (56%).
The month with the lowest relative humidity is June (39%).

Average rainfall in September
Nili, Iran

  • Average rainfall in September: 3mm

The wettest month (with the highest rainfall) is March (45mm).
The driest months (with the least rainfall) are July and August (2mm).

Average rainfall days in September
Nili, Iran

  • Average rainfall days in September: 2.6 days

The month with the highest number of rainy days is March (9.5 days).
The month with the least rainy days is June (1.8 days).

Average snowfall in September
Nili, 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
Nili, 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
Nili, Iran

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 10h and 54min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

Average sunshine days in September
Nili, Iran

  • Average sunshine days in September: 26.5 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is February (16.5 days).

Average UV index in September
Nili, Iran

  • Average UV index in September: 6

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January and February (UV index 3).

Average cloud cover in September
Nili, Iran

  • Average cloud cover in September: 8

The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is September (Cloud cover 8).

Average visibility in September
Nili, Iran

  • Average visibility in September: 10km

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