Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September signals a gentle decrease in the average high-temperature, transitioning from a hot 31.5°C (88.7°F) in August to a moderately hot 27.2°C (81°F). A steady average of 14.4°C (57.9°F) throughout September underscores a considerable divergence from the daytime high.Heat index
The heat index value for September is appraised at 27°C (80.6°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Always consider that heat index estimations are for light winds and places in the shade. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In September, the average relative humidity in Chap is 43%.Rainfall
August and September are months with the least rain in Chap when the rain falls for 2.1 days and typically aggregates up to 2mm (0.08") of rain.Snowfall
In Chap, Iran, snow does not fall in May through October.Daylight
In Chap, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:49 and sunset at 18:46. On the last day of the month, sunrise is at 06:13 and sunset at 18:03 +0330.
Sunshine
In Chap, the average sunshine in September is 11h.UV index
The average daily maximum UV index in September in Chap is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What are the temperatures in Chap in September?
What is the average humidity in September in Chap?
What is the driest month in Chap?
How many days does it rain in September in Chap?
When it does not snow in Chap?
What is the average length of the day in September in Chap?
When is the sunrise / sunset in September in Chap?
How long on average sun shines in September in Chap?
What is the UV index intensity in September in Chap?
Average temperature in September
Chap Chap, Iran
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is July (32.6°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is July (18.9°C).
The coldest month (with the lowest average low temperature) is January (-3.7°C).
Average pressure in September
Chap Chap, Iran
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is December (1022.2mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).
Average wind speed in September
Chap Chap, Iran
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is July (11.3km/h).
The calmest month (with the lowest average wind speed) is December (5.1km/h).
Average humidity in September
Chap Chap, Iran
- Average humidity in September: 43%
The months with the highest relative humidity are January and February (68%).
The month with the lowest relative humidity is June (35%).
Average rainfall in September
Chap Chap, Iran
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is March (26mm).
The driest months (with the least rainfall) are August and September (2mm).
Average rainfall days in September
Chap Chap, Iran
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (11.8 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in September
Chap Chap, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (96mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Chap Chap, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 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
Chap Chap, Iran
- Average daylight in September: 12h and 2min
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: 11h and 0min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Chap Chap, Iran
- Average sunshine days in September: 26.7 days
The month with the most sunshine days is August (28.4 days).
The month with the least sunshine days is April (15.1 days).
Average UV index in September
Chap Chap, Iran
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Chap Chap, Iran
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 27).
The months with the least cloud cover are June, August and September (Cloud cover 7).
Average visibility in September
Chap Chap, 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).
Chap Chap, Iran
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