September weather forecast
Urmia, Iran

September in Urmia brings about a downturn from the summer highs into more manageable temperatures. With a hint of autumn in the air, the weather begins to take on a crisper tone. The daylight hours reduce, and the city undergoes a shift in character, from vibrant summer hues to autumnal tones. It signals the changing wardrobe requirements as the nights start to get colder. October will bring further signs of the shifting season.

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a tropical 31°C (87.8°F) in August to a moderately hot 27.1°C (80.8°F). September nights in Urmia, Iran, showcase a dramatic shift from daytime highs to an average temperature of 11.5°C (52.7°F).

Heat index

For September, the heat index is computed to be 27°C (80.6°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In September, the average relative humidity is 49%.

Rainfall

In Urmia, during September, the rain falls for 2.1 days and regularly aggregates up to 4mm (0.16") of precipitation. In Urmia, during the entire year, the rain falls for 90 days and collects up to 341mm (13.43") of precipitation.

Snowfall

May through September are months without snowfall in Urmia.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:58. On the last day of September, sunrise is at 06:24 and sunset at 18:14 +0330.

Sunshine

The average sunshine in September in Urmia is 9.8h.