Iași (Iaşi)
September
Weather in Iași for September 2025
Your guide to Iași weather in September - trends and predictions
In general, the average temperature in Iași at the beginning of September is 28.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.3 °C by the end of September.
With an average of 4 rainy days, Iași experiences minimal rainfall in September.
Is September a good time to visit Iași? check out the best time to travel to Iași page.
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26
Dry days
4
Rainy days
0
Snow days
28°/13°
Temperatures
18 km/h
Avg max wind
46 %
Avg humidity
Iași in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2  32° | 3  32° | 4 22° | 5 27° | 6  27° | 7 28° |
| 8 28° | 9 28° | 10 27° | 11 25° | 12 25° | 13 29° | 14 27° |
| 15 24° | 16 22° | 17 26° | 18 24° | 19 24° | 20 25° | 21 26° |
| 22 26° | 23 29° | 24 28° | 25  28° | 26 27° | 27 29° | 28 28° |
| 29 24° | 30 20° |
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Temperatures trend during September in Iași
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 31° /17° | 0.5 mm | 7 | |
| 2 Sept. | Sunny | 32° /16° | 0 mm | 8 | |
| 3 Sept. | Light rain shower | 32° /15° | 1.4 mm | 7 | |
| 4 Sept. | Light rain shower | 22° /15° | 0.4 mm | 5 | |
| 5 Sept. | Partly cloudy | 27° /15° | 0 mm | 7 | |
| 6 Sept. | Overcast | 27° /14° | 0.7 mm | 6 | |
| 7 Sept. | Partly cloudy | 28° /14° | 0 mm | 7 | |
| 8 Sept. | Sunny | 28° /13° | 0 mm | 7 | |
| 9 Sept. | Sunny | 28° /13° | 0 mm | 7 | |
| 10 Sept. | Sunny | 27° /14° | 0 mm | 7 | |
| 11 Sept. | Partly cloudy | 25° /14° | 0.9 mm | 6 | |
| 12 Sept. | Partly cloudy | 25° /13° | 2.3 mm | 6 | |
| 13 Sept. | Partly cloudy | 29° /14° | 0 mm | 8 | |
| 14 Sept. | Partly cloudy | 27° /15° | 7.4 mm | 7 | |
| 15 Sept. | Overcast | 24° /13° | 5.1 mm | 5 | |
| 16 Sept. | Partly cloudy | 22° /13° | 19.1 mm | 6 | |
| 17 Sept. | Sunny | 26° /13° | 0 mm | 7 | |
| 18 Sept. | Sunny | 24° /12° | 4.3 mm | 6 | |
| 19 Sept. | Overcast | 24° /11° | 0.3 mm | 6 | |
| 20 Sept. | Patchy rain possible | 25° /12° | 0.6 mm | 6 | |
| 21 Sept. | Partly cloudy | 26° /10° | 0.2 mm | 7 | |
| 22 Sept. | Patchy rain possible | 26° /13° | 0.1 mm | 6 | |
| 23 Sept. | Sunny | 29° /13° | 0 mm | 8 | |
| 24 Sept. | Sunny | 28° /15° | 0 mm | 8 | |
| 25 Sept. | Mist | 28° /13° | 0 mm | 7 | |
| 26 Sept. | Sunny | 27° /14° | 0 mm | 7 | |
| 27 Sept. | Sunny | 29° /14° | 0 mm | 7 | |
| 28 Sept. | Sunny | 28° /14° | 0 mm | 7 | |
| 29 Sept. | Partly cloudy | 24° /11° | 1.3 mm | 6 | |
| 30 Sept. | Sunny | 20° /10° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Iași in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Iași forecast closer to your planned date for the most up-to-date weather information.
Iași in September - FAQ
What are the expected maximum and minimum temperatures in Iași during September?
Enjoy moderate daytime temperatures of up to 28° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Iași during September?
Rainfall in Iași during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 4 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Iași during September?
The average wind speed in Iași during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Iași in September?
As you prepare for your trip to Iași in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Iași, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Iași
Explore the daily rainfall trends and prepare for Iașis September weather 💧
UV exposure in Iași during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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