Climate averages 1991–2020
Constanţa weather
in May.
A mild, fairly dry month: the 5th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Constanţa: daytime highs average 20.0°C and nights cool to about 12.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 36 mm of rain on roughly 7 days, which makes May a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 44 min on an average May day.
The nearest other city in this atlas is Varna (122 km away). In May its highs average 19.9°C, about as warm as Constanţa, with 44 mm of rain.
Among the 27 cities listed in Romania, Constanţa ranks 20th of 27 for the warmest May highs and 1st of 27 for the driest May (rainfall, lowest first). The mean May high of those 27 cities is 20.8°C; Constanţa is 0.9°C cooler than that mean.
From May to June, average highs rise by 4.6°C to 24.6°C, and monthly rainfall rises from 36 mm to 39 mm.
The annual picture
May in context
Monthly rainfall
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
Constanţa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.8°C-0.7°C | -0.7°C | 44 | 7.3 | 9.39 h |
| February | 6.4°C0.0°C | 0.0°C | 33 | 6.2 | 10.410 h |
| March | 9.8°C2.8°C | 2.8°C | 41 | 7.8 | 11.912 h |
| April | 14.4°C6.9°C | 6.9°C | 33 | 6.9 | 13.413 h |
| May, selected | 20.0°C12.4°C | 12.4°C | 36 | 6.9 | 14.715 h |
| June | 24.6°C17.3°C | 17.3°C | 39 | 6.8 | 15.415 h |
| July | 27.1°C19.6°C | 19.6°C | 30 | 4.8 | 15.115 h |
| August | 27.2°C19.8°C | 19.8°C | 31 | 4.8 | 14.014 h |
| September | 22.5°C15.6°C | 15.6°C | 51 | 5.9 | 12.613 h |
| October | 17.0°C11.0°C | 11.0°C | 50 | 6.8 | 11.011 h |
| November | 11.5°C6.1°C | 6.1°C | 45 | 7.1 | 9.710 h |
| December | 6.4°C1.2°C | 1.2°C | 46 | 8.0 | 8.99 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
- Varna in MayBulgaria · 122 kmHigh 19.9°C · Low 12.4°C · 44 mm rain
- Brăila in MayRomania · 132 kmHigh 22.6°C · Low 12.5°C · 51 mm rain
- Galaţi in MayRomania · 147 kmHigh 22.6°C · Low 12.6°C · 54 mm rain
- Shumen in MayBulgaria · 171 kmHigh 20.9°C · Low 10.5°C · 61 mm rain
- Buzău in MayRomania · 179 kmHigh 22.0°C · Low 11.3°C · 75 mm rain
- Bucharest in MayRomania · 203 kmHigh 22.6°C · Low 11.8°C · 70 mm rain
- Burgas in MayBulgaria · 209 kmHigh 20.9°C · Low 12.1°C · 47 mm rain
- Ruse in MayBulgaria · 218 kmHigh 22.9°C · Low 12.7°C · 65 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 Constanţa) is explained once on the Constanţa year overview and on the Sources, method and limits page.