Climate averages 1991–2020
Iaşi weather
in May.
A mild, moderately wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Iaşi: daytime highs average 21.8°C and nights cool to about 11.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 60 mm of rain on roughly 10 days, which makes May a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 03 min on an average May day.
The nearest other city in this atlas is Bălţi (71 km away). In May its highs average 21.6°C, about as warm as Iaşi, with 60 mm of rain.
Among the 27 cities listed in Romania, Iaşi ranks 9th of 27 for the warmest May highs and 5th of 27 for the driest May (rainfall, lowest first). The mean May high of those 27 cities is 20.8°C; Iaşi is 1.0°C warmer than that mean.
From May to June, average highs rise by 3.7°C to 25.5°C, and monthly rainfall rises from 60 mm to 75 mm.
The annual picture
May in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Iaşi climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.5°C-5.3°C | -5.3°C | 28 | 6.5 | 9.09 h |
| February | 3.9°C-4.0°C | -4.0°C | 28 | 6.2 | 10.210 h |
| March | 9.4°C0.0°C | 0.0°C | 36 | 8.6 | 11.912 h |
| April | 16.1°C5.6°C | 5.6°C | 45 | 8.5 | 13.614 h |
| May, selected | 21.8°C11.4°C | 11.4°C | 60 | 10.4 | 15.015 h |
| June | 25.5°C15.7°C | 15.7°C | 75 | 10.7 | 15.816 h |
| July | 27.4°C17.7°C | 17.7°C | 72 | 9.9 | 15.516 h |
| August | 27.1°C17.4°C | 17.4°C | 49 | 7.1 | 14.214 h |
| September | 21.5°C12.6°C | 12.6°C | 50 | 7.1 | 12.613 h |
| October | 15.1°C7.0°C | 7.0°C | 44 | 6.4 | 10.911 h |
| November | 8.3°C2.0°C | 2.0°C | 36 | 5.9 | 9.49 h |
| December | 2.8°C-3.2°C | -3.2°C | 35 | 7.0 | 8.69 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Bălţi in MayMoldova · 71 kmHigh 21.6°C · Low 11.2°C · 60 mm rain
- Bacău in MayRomania · 85 kmHigh 20.8°C · Low 10.6°C · 64 mm rain
- Botoşani in MayRomania · 96 kmHigh 21.0°C · Low 11.0°C · 66 mm rain
- Chisinau in MayMoldova · 97 kmHigh 22.2°C · Low 11.7°C · 54 mm rain
- Piatra Neamţ in MayRomania · 100 kmHigh 18.4°C · Low 8.1°C · 90 mm rain
- Suceava in MayRomania · 114 kmHigh 19.1°C · Low 8.8°C · 70 mm rain
- Bender in MayMoldova · 147 kmHigh 22.2°C · Low 12.0°C · 46 mm rain
- Tiraspol in MayMoldova · 158 kmHigh 22.2°C · Low 11.7°C · 45 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Iaşi) is explained once on the Iaşi year overview and on the Sources, method and limits page.