September weather forecast
Ruku, Iran

September

Weather in September

The first month of the autumn, September, is also a hot month in Ruku, Iran, with temperature in the range of an average low of 27.7°C (81.9°F) and an average high of 32.3°C (90.1°F).

Temperature

Ruku in September records an average high-temperature of a still hot 32.3°C (90.1°F), parallel to August. In September, Ruku experiences a marginal drop in temperature, with averages of 27.7°C (81.9°F) at night.

Heat index

For most parts of September, the heat index is computed to be a blisteringly hot 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In Ruku, the average relative humidity in September is 67%.

Rainfall

In Ruku, rain does not fall in May and September.

Daylight

In Ruku, Iran, the average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 05:06 and sunset at 17:45. On the last day of September, sunrise is at 05:17 and sunset at 17:13 +0330.

Sunshine

In September, the average sunshine is 9.8h.

UV index

April through September, with an average maximum UV index of 8, are months with the highest UV index. A UV Index of 8 to 10 symbolizes a very high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 8 in September leads to these guidelines:
Prioritize protection; rapid damage can occur to unprotected eyes and skin. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

How hot does it get in September?
In Ruku, 32.3°C (90.1°F) is the average high-temperature and 27.7°C (81.9°F) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 40°C (104°F).
What is the average humidity in September?
In Ruku, the average relative humidity in September is 67%.
What is the driest month?
May and September are months without rainfall.
Does it rain in September?
In September, it doesn't rain. August is the latest month when it rains.
What is the average length of the day in September?
In September, the average day length is 12h and 18min.
What time are sunrise and sunset in September?
On the first day of September, sunrise is at 05:06 and sunset at 17:45. On the last day of the month, sunrise is at 05:17 and sunset at 17:13 +0330.
How long on average sun shines in September?
The average sunshine duration in September is 9.8h.
When is the highest UV index?
April through September, with an average maximum UV index of 8, are months with the highest UV index.
What is the UV index intensity in September?
In Ruku, Iran, the average daily maximum UV index in September is 8. A UV Index of 8 to 10 symbolizes a very high health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Ruku, Iran
  • Average high temperature in September: 32.3°C

The warmest month (with the highest average high temperature) is May (35.6°C).
The month with the lowest average high temperature is January (23.2°C).

  • Average low temperature in September: 27.7°C

The month with the highest average low temperature is June (30.3°C).
The coldest month (with the lowest average low temperature) is January (18.5°C).

Average pressure in September
Ruku, Iran
  • Average pressure in September: 1005.1mbar

The month with the highest atmospheric pressure is January (1017.1mbar).
The month with the lowest atmospheric pressure is July (998.1mbar).

Average wind speed in September
Ruku, Iran
  • Average wind speed in September: 12.6km/h

The windiest month (with the highest average wind speed) is May (15.9km/h).
The calmest month (with the lowest average wind speed) is December (10.3km/h).

Average humidity in September
Ruku, Iran
  • Average humidity in September: 67%

The month with the highest relative humidity is August (71%).
The month with the lowest relative humidity is December (46%).

Average rainfall in September
Ruku, Iran
  • Average rainfall in September: 0mm

The wettest month (with the highest rainfall) is January (14mm).
The driest months (with the least rainfall) are May and September (0mm).

Average rainfall days in September
Ruku, Iran
  • Average rainfall days in September: 0.5 days

The month with the highest number of rainy days is January (3.6 days).
The month with the least rainy days is May (0.2 days).

Average daylight in September /
Average sunshine in September
Ruku, Iran
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).

Average sunshine days in September
Ruku, Iran
  • Average sunshine days in September: 29.5 days

The month with the most sunshine days is May (30.8 days).
The month with the least sunshine days is February (24.3 days).

Average UV index in September
Ruku, Iran
  • Average UV index in September: 8

The months with the highest UV index are April, May, June, July, August and September (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 6).

Average cloud cover in September
Ruku, Iran
  • Average cloud cover in September: 6

The months with the most cloud cover are July and August (Cloud cover 16).
The month with the least cloud cover is October (Cloud cover 3).

Average visibility in September
Ruku, 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).

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