Iași in Fall
In fall (September, October and November), Iași sees average daytime highs around 15°C and overnight lows near 7°C, with 129 mm of precipitation over about 20 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 25°C in early September to 5°C by late November. The sky is clear or mostly clear about 29% of the time across fall, and the air most often feels dry.
Fall is Iași's 3rd-best season to visit on our travel score. For the whole year in context, see Iași's year-round climate.
- Avg daytime high
- 15°C
- 3rd-warmest season
- Avg overnight low
- 7°C
- Precipitation
- 129 mm
- 20 wet days
- Avg wind
- 10 km/h
- Travel score
- 4.6
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Iași in Fall
Over the season highs ease from about 25°C in early September to 5°C by late November.
A typical fall day in Iași reaches about 15°C and drops to 7°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Iași
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 19 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Iași weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 1° / -5° | 28 | 6.5 | 5.1 | 8.7 | 0.0 |
| Feb | 3° / -4° | 28 | 6.1 | 3.6 | 10 | 0.0 |
| Mar | 9° / 1° | 36 | 8.6 | 2.4 | 11.6 | 1.9 |
| Apr | 16° / 6° | 45 | 8.5 | 0.3 | 13.3 | 5.2 |
| May | 22° / 11° | 61 | 10.4 | 0 | 14.8 | 6.7 |
| Jun | 26° / 15° | 75 | 10.7 | 0 | 15.6 | 6.6 |
| Jul | 28° / 17° | 72 | 10 | 0 | 15.3 | 6.4 |
| Aug | 28° / 16° | 49 | 7.1 | 0 | 14 | 6.8 |
| Sep | 22° / 12° | 50 | 7.2 | 0 | 12.4 | 7.1 |
| Oct | 15° / 7° | 44 | 6.4 | 0.1 | 10.6 | 5.1 |
| Nov | 8° / 2° | 36 | 5.9 | 2.1 | 9.1 | 1.5 |
| Dec | 2° / -3° | 35 | 7.1 | 4.2 | 8.4 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 29% of the time across fall.
Chance of precipitation in Fall
Iași gets around 129 mm of rain and snow over 20 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 12 min in early September to 8 h 36 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 2.4 kWh/m².
Is fall a good time to visit Iași?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Iași for sightseeing.
What to pack for Iași in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Iași sees daytime highs around 15°C and nights near 7°C. Pack a warm layer. Worth having: light clothes and a heavy coat. About 20 days see rain.
UV index in Iași in Fall
Clear-sky midday UV across fall averages around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Iași peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 6 | 5 | 7 | 8 | 7 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | High | Moderate | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 5 | Moderate |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Iași in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Iași is worst in July — around 35 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 19 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Iași's WHO annual average of 27 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 24 | 26 | 34 | 28 | 28 | 32 | 35 | 30 | 25 | 21 | 21 | 19 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 24 | Moderate |
| Feb | 26 | Moderate |
| Mar | 34 | Moderate |
| Apr | 28 | Moderate |
| May | 28 | Moderate |
| Jun | 32 | Moderate |
| Jul | 35 | Moderate |
| Aug | 30 | Moderate |
| Sep | 25 | Moderate |
| Oct | 21 | Moderate |
| Nov | 21 | Moderate |
| Dec | 19 | Moderate |
Where is Iași?
Iași sits at 47.2°N, 27.6°E, 66 m above sea level, in Romania. The nearest listed city is Ungheni, 16 km away.
Topography around Iași
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Iași.
Within 3 km, the terrain around Iași has only modest variations in elevation — a maximum elevation change of 114 m around an average of 74 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, significant variations in elevation — a maximum elevation change of 583 m.
The land around Iași is covered by artificial surfaces (44%) and trees (31%) within 3 km, cropland (38%), trees (29%) and grassland (24%) within 16 km, and cropland (47%), trees (27%) and grassland (23%) within 80 km.
Romania travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 44% of US
- price level, 2025
- GDP per capita
- $22,538
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 82%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 10.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 605
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Iași (47.1667°, 27.6°, elevation 66 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.