September weather forecastKeykhosrow, Iran
September
Weather in September
The first month of the autumn, September, is still a warm month in Keykhosrow, Iran, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 18.3°C (64.9°F).Temperature
September ushers in a minor alteration in Keykhosrow's climate, with the average high-temperature moving from August's tropical 33°C (91.4°F) to a warm 28.9°C (84°F). During the nights in September, Keykhosrow experiences a consistent average temperature of 18.3°C (64.9°F).Humidity
In Keykhosrow, the average relative humidity in September is 21%.Rainfall
In Keykhosrow, Iran, in September, it is raining for 1.4 days, with typically 2mm (0.08") of accumulated precipitation. In Keykhosrow, during the entire year, the rain falls for 54.5 days and collects up to 111mm (4.37") of precipitation.Snowfall
In Keykhosrow, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:09 and sunset at 18:06. On the last day of September, sunrise is at 05:32 and sunset at 17:23 +0330.
Sunshine
In Keykhosrow, the average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September in Keykhosrow, Iran, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Keykhosrow, Iran
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is July (34.8°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is July (23.9°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in September
Keykhosrow, Iran
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is December (1022.2mbar).
The month with the lowest atmospheric pressure is July (1007.7mbar).
Average wind speed in September
Keykhosrow, Iran
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is July (16.5km/h).
The calmest month (with the lowest average wind speed) is December (6.3km/h).
Average humidity in September
Keykhosrow, Iran
- Average humidity in September: 21%
The months with the highest relative humidity are January and February (53%).
The month with the lowest relative humidity is July (17%).
Average rainfall in September
Keykhosrow, Iran
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is May (25mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in September
Keykhosrow, Iran
- Average rainfall days in September: 1.4 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is August (0.7 days).
Average snowfall in September
Keykhosrow, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Keykhosrow, Iran
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.1 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
Keykhosrow, Iran
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is August (Average sunshine: 12h and 24min).
The months with the least sunshine are November and December (Average sunshine: 7h and 0min).
Average sunshine days in September
Keykhosrow, Iran
- Average sunshine days in September: 28.2 days
The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is May (15.3 days).
Average UV index in September
Keykhosrow, Iran
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Keykhosrow, Iran
- Average cloud cover in September: 3
The month with the most cloud cover is February (Cloud cover 23).
The months with the least cloud cover are August and September (Cloud cover 3).
Average visibility in September
Keykhosrow, 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).





