September Weather in Ider, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Ider, Mongolia hovers around 9°C (48°F). Expect a range that swings from a chilly -10°C (14°F) to a warm 28°C (82°F). With an average precipitation of 34 mm (1.3 in) over 6 days, and an average humidity level sitting at 78%, be prepared for a mix of cool and damp days.

September Temperature in Ider

In September in Ider, the average temperature is 9°C (48°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -10°C (14°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels!

September Weather in Ider: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ider, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ider, September typically has an average temperature of 9°C (48°F), with highs reaching up to 28°C (82°F) and lows dropping to around -10°C (14°F).

Data source: Temperature data for Ider generated using information from the Copernicus Climate Change Service.

September Precipitation in Ider

In Ider in September, the total precipitation amount is 34 mm (1.3 in) spread over 6 days.

September Precipitation Trends in Ider

The chart displays monthly precipitation patterns in Ider, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Ider, September typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Ider

In Ider in September humidity is 78%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions less enjoyable as you navigate the damp air.

September Average Humidity in Ider

This chart illustrates the average monthly humidity levels in Ider, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Ider is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ider

In Ider in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Ider, you can refer to this Hourly UV Index in Ider.

Maximum UV Index Levels in Ider for September

The chart shows the monthly maximum UV Index (UVI) for Ider in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Ider typically reaches 6, which falls under the high exposure category.

Data source: Ider September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Ider Compares to Other Months

Weather in Ider varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ider, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ider, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-22°C (-7°F)	3 mm (0.1 inches)	94%	low
February Weather	-17°C (1°F)	8 mm (0.3 inches)	89%	moderate
March Weather	-7°C (19°F)	10 mm (0.4 inches)	84%	moderate
April Weather	3°C (37°F)	28 mm (1.1 inches)	80%	very high
May Weather	9°C (49°F)	31 mm (1.2 inches)	71%	very high
June Weather	15°C (60°F)	49 mm (1.9 inches)	71%	very high
July Weather	17°C (63°F)	87 mm (3.4 inches)	75%	very high
August Weather	14°C (58°F)	95 mm (3.7 inches)	74%	very high
September Weather	9°C (48°F)	34 mm (1.3 inches)	78%	high
October Weather	-1°C (30°F)	21 mm (0.8 inches)	86%	moderate
November Weather	-10°C (14°F)	7 mm (0.3 inches)	94%	low
December Weather	-18°C (0°F)	3 mm (0.1 inches)	96%	low