September weather forecastDerman, Iran
September
Weather in September
The first month of the autumn, September, is still a warm month in Derman, Iran, with an average temperature ranging between max 27.7°C (81.9°F) and min 14.1°C (57.4°F).Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a hot 31.8°C (89.2°F) in August to a warm 27.7°C (81.9°F). Derman observes a dramatic plunge from daytime highs in September, settling at an average low-temperature of 14.1°C (57.4°F).Humidity
The average relative humidity in September in Derman is 23%.Rainfall
July through September are months with the least rain in Derman when the rain falls for 0.7 days and typically aggregates up to 1mm (0.04") of rain.Snowfall
April through October are months without snowfall in Derman.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 05:45 and sunset at 18:38. On the last day of September, sunrise is at 06:06 and sunset at 17:57 +0330.
Sunshine
In September, the average sunshine in Derman, Iran, is 11.3h.UV index
The average daily maximum UV index in September in Derman, Iran, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 during September translates into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Derman, Iran
- Average high temperature in September: 27.7°C
The warmest month (with the highest average high temperature) is July (33.2°C).
The month with the lowest average high temperature is January (4.4°C).
- Average low temperature in September: 14.1°C
The month with the highest average low temperature is July (19.6°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in September
Derman, Iran
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1005.8mbar).
Average wind speed in September
Derman, Iran
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is March (12.5km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in September
Derman, Iran
- Average humidity in September: 23%
The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is July (18%).
Average rainfall in September
Derman, Iran
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (22mm).
The driest months (with the least rainfall) are July, August and September (1mm).
Average rainfall days in September
Derman, Iran
- Average rainfall days in September: 0.7 days
The month with the highest number of rainy days is April (8.3 days).
The month with the least rainy days is September (0.7 days).
Average snowfall in September
Derman, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is March (56mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Derman, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.7 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
Derman, Iran
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 11h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Derman, Iran
- Average sunshine days in September: 28.9 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is April (21.2 days).
Average UV index in September
Derman, 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, November and December (UV index 2).
Average cloud cover in September
Derman, Iran
- Average cloud cover in September: 5
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 5).
Average visibility in September
Derman, 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).
