Weather in September
Temperature
September ushers in a minor alteration in Semnan's climate, with the average high-temperature moving from August's fiery hot 36.7°C (98.1°F) to a tropical 32.7°C (90.9°F). During September, Semnan detects a significant contrast from its daytime temperatures, with nights averaging at a refreshing 19.4°C (66.9°F).Humidity
In Semnan, the average relative humidity in September is 30%.Rainfall
September is the month with the least rainfall in Semnan, Iran. Rain falls for 0.8 days and accumulates 1mm (0.04") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Semnan, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 05:28 and sunset at 18:23. On the last day of September, in Semnan, sunrise is at 05:50 and sunset at 17:41 +0330.
Sunshine
In Semnan, Iran, the average sunshine in September is 10.1h.Frequently asked questions
How hot does it get in Semnan in September?
What is the average humidity in September in Semnan?
What is the driest month in Semnan?
How much does it rain in Semnan in September?
When it does not snow in Semnan?
How many hours of daylight does Semnan have in September?
When are sunrise and sunset in September in Semnan?
How many hours of sunshine does Semnan have in September?
Average temperature in September
Semnan, Iran
- Average high temperature in September: 32.7°C
The warmest month (with the highest average high temperature) is July (37.8°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is July (24.9°C).
The coldest month (with the lowest average low temperature) is January (-1°C).
Average humidity in September
Semnan, Iran
- Average humidity in September: 30%
The month with the highest relative humidity is January (63%).
The months with the lowest relative humidity are June and July (28%).
Average rainfall in September
Semnan, Iran
- Average rainfall in September: 1.4mm
The wettest month (with the highest rainfall) is March (22.7mm).
The driest month (with the least rainfall) is September (1.4mm).
Average rainfall days in September
Semnan, Iran
- Average rainfall days in September: 0.8 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is September (0.8 days).
Average snowfall days in September
Semnan, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Semnan, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Semnan, Iran
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