September weather forecast
Iași, Romania

englishespañol中文
Share

Weather in September

September ushers in autumn in Iași, Romania, with visibly cooler weather compared to August. The temperatures drop to a range of 10.7°C (51.3°F) to 22.7°C (72.9°F), making the days more comfortable. Shorter daylight hours and reduced sunshine hours signify the change of season. Trees start to change their tone, painting the city in the hues of autumn, drawing nature enthusiasts and photographers. Despite the summer having passed, the ample sunshine and crisp air make September a beautiful month to visit.

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 26.6°C (79.9°F) to a pleasant 22.7°C (72.9°F). From the height of daytime heat, the temperature recedes to an average of 10.7°C (51.3°F) at night during September.

Rainfall

In Iași, during September, the rain falls for 5 days and regularly aggregates up to 48mm (1.89") of precipitation. Throughout the year, there are 80 rainfall days, and 589mm (23.19") of precipitation is accumulated.

Snowfall

In Iași, snow does not fall in May through September.

Daylight

In Iași, the average length of the day in September is 12h and 34min.
On the first day of September, sunrise is at 06:29 and sunset at 19:49. On the last day of the month, sunrise is at 07:07 and sunset at 18:51 EEST.

Sunshine

In September, the average sunshine is 6.9h.

UV index

The average daily maximum UV index in September in Iași, Romania, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Feb 5, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are September temperatures in Iași?

During September, Iași experiences an average high-temperature of 22.7°C (72.9°F) and a low-temperature of 10.7°C (51.3°F).

How many days does it rain in September in Iași?

In September, in Iași, Romania, the rain falls for 5 days. Throughout September, 48mm (1.89") of precipitation is accumulated.

When it does not snow in Iași?

May through September are months without snowfall in Iași, Romania.

Does it snow in Iași in September?

In Iași, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Iași?

In Iași, the average day length in September is 12h and 34min.

When is the sunrise / sunset in September in Iași?

In September, on the first day of the month, sunrise is at 06:29 and sunset at 19:49. On the last day of the month, in Iași, Romania, sunrise is at 07:07 and sunset at 18:51 EEST.

How many hours of sunshine does Iași have in September?

The average sunshine duration in September in Iași, Romania, is 6.9h.

What is the UV index reading in September in Iași?

The average daily maximum UV index in September in Iași is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
Average snowfall
Average daylight
Average sunshine
Average UV index

Average temperature in September
Iași, Romania

Average temperature in September - Iași, Romania
  • Average high temperature in September: 22.7°C

The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (-0.1°C).

  • Average low temperature in September: 10.7°C

The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-6.9°C).

Average rainfall in September
Iași, Romania

Average rainfall in September - Iași, Romania
  • Average rainfall in September: 48mm

The wettest month (with the highest rainfall) is June (101mm).
The driest month (with the least rainfall) is October (25mm).

Average rainfall days in September
Iași, Romania

Average rainfall days in September - Iași, Romania
  • Average rainfall days in September: 5 days

The months with the highest number of rainy days are June and July (9 days).
The months with the least rainy days are August, September and October (5 days).

Average snowfall in September
Iași, Romania

Average snowfall in September - Iași, Romania
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (143mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average daylight in September /
Average sunshine in September
Iași, Romania

Average daylight in September / Average sunshine in September - Iași, Romania
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 6h and 5min

The month with the most sunshine is July (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

Average UV index in September
Iași, Romania

Average UV index in September - Iași, Romania
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 1).

Iași, Romania

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location