Iaşi
September
Weather in Iaşi for September 2025
Your guide to Iaşi weather in September - trends and predictions
In general, the average temperature in Iaşi 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, Iaşi experiences minimal rainfall in September.
Is September a good time to visit Iaşi? check out the best time to travel to Iaşi 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
Iaşi 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 Iaşi
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 Iaşi 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 Iaşi forecast closer to your planned date for the most up-to-date weather information.
Iaşi in September - FAQ
What are the expected maximum and minimum temperatures in Iaşi 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 Iaşi during September?
Rainfall in Iaşi 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 Iaşi during September?
The average wind speed in Iaşi during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Iaşi in September?
As you prepare for your trip to Iaşi 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 Iaşi, 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 Iaşi
Explore the daily rainfall trends and prepare for Iaşis September weather 💧
UV exposure in Iaşi during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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