Iași weather in October

In October, Iași sees average daytime highs of 15°C and overnight lows near 7°C, with 44 mm of precipitation across 6.4 wet days and about 10.6 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 12°C by the end. The sky is clear or mostly clear about 31% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 9 h 48 min by month's end. Set against the rest of the year, October is Iași's 6th-clearest and 9th-windiest month. For the whole year in context, see Iași's year-round climate.

Daytime high
15°
7th warmest
Overnight low
7th coldest
Precipitation
44 mm
6.4 wet days
Daylight
10 h 36 min
6:36 AM – 5:13 PM
Cloud cover
60%
6th clearest
Wind
10 km/h
9th windiest
Solar energy
2.33 kWh/m²
Travel score
5.1
out of 10

Iași is city and seat of Iași County in the historical region of Moldavia in north-eastern Romania.

Air quality
High
PM2.5 27 µg/m³ · 2018
Density
4,031/km²
people per km²
Founded
1408

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 12°C by the end.

A typical October day in Iași reaches about 15°C in the afternoon and slips back to 7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 22°C. Set against its neighbours, October runs about 7°C cooler than September and about 7°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1199
2199
3189
4189
5189
6189
7188
8178
9178
10178
11178
12167
13167
14167
15167
16157
17156
18156
19156
20146
21146
22146
23145
24135
25135
26135
27135
28135
29125
30124
31124

How October really feels in Iași

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Iași weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°286.55.18.70.0
Feb / -4°286.13.6100.0
Mar / 368.62.411.61.9
Apr16° / 458.50.313.35.2
May22° / 11°6110.4014.86.7
Jun26° / 15°7510.7015.66.6
Jul28° / 17°7210015.36.4
Aug28° / 16°497.10146.8
Sep22° / 12°507.2012.47.1
Oct15° / 446.40.110.65.1
Nov / 365.92.19.11.5
Dec / -3°357.14.28.40.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54753
64654
74753
84753
94753
104753
114753
124753
134753
144654
154654
164654
174555
184555
194456
204456
214456
224258
234258
244258
254258
264060
274060
284060
293961
303961
313961

Chance of precipitation in October

Any precipitationSnow

Iași gets around 44 mm of rain and snow over 6.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 22% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1200
2200
3200
4200
5200
6200
7200
8210
9210
10210
11210
12210
13210
14220
15220
16220
17220
18220
19220
20220
21210
22210
23210
24211
25201
26201
27201
28201
29191
30192
31192

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
183143
285132
385132
486122
586122
687112
788111
889101
989101
109091
119181
129181
139370
149460
159460
169550
179640
189640
199730
209730
219820
229820
239820
249910
259910
269910
279910
289910
299910
309910
319910

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over October. Sunrise moves from 6:15 AM to 6:59 AM, and sunset from 5:43 PM to 4:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:155:43
211.46:165:40
311.36:175:38
411.36:195:36
511.26:205:34
611.26:225:32
711.16:235:30
811.16:255:28
911.06:265:26
1010.96:275:24
1110.96:295:23
1210.86:305:21
1310.86:325:19
1410.76:335:17
1510.76:355:15
1610.66:365:13
1710.66:385:11
1810.56:395:09
1910.46:415:08
2010.46:425:06
2110.36:445:04
2210.36:455:02
2310.26:475:01
2410.26:484:59
2510.16:504:57
2610.16:514:55
2710.06:534:54
2810.06:544:52
299.96:564:51
309.96:574:49
319.86:594:48

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.33 kWh/m².

For context, solar energy here swings from a low near 0.95 kWh/m² to a high of 5.92 kWh/m² in June across the year — October's 2.33 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.8Moderate
52.8Moderate
62.7Moderate
72.7Moderate
82.6Moderate
92.6Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.3Moderate
172.3Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.1Moderate
222.1Moderate
232.0Moderate
242.0Moderate
252.0Dim
261.9Dim
271.9Dim
281.9Dim
291.9Dim
301.8Dim
311.8Dim
Planning a trip in October

Is October a good time to visit Iași?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.1
Sightseeing
7th-best month of the year
0.8
Beach & pool
7th-best month of the year

October is a reasonable time to visit Iași for sightseeing.

What to pack for Iași in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Iași sees daytime highs around 15°C and nights near 7°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

UV index in Iași in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May5Moderate
Jun7Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Iași in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1535 µg/m³Dec 1420 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb26Moderate
Mar34Moderate
Apr28Moderate
May28Moderate
Jun32Moderate
Jul35Moderate
Aug30Moderate
Sep25Moderate
Oct21Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

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.

RomanVasluiBilicenii VechiHuşiPaşcaniBălţiStrășeni

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.

3 km
114 m
16 km
396 m
80 km
583 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Ungheni 16 km · Roman 58 km · Vaslui 60 km · Bilicenii Vechi 64 km · Huşi 65 km · Paşcani 67 km · Bălţi 71 km · Strășeni 76 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
Romanian Orthodox 85%other 5%Roman Catholic 5%Reformed 3%

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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).