Constanţa Weather in May
Constanţa in May averages 21°C (70°F) during the day and 14°C (57°F) at night. Some rainfall is typical for this time of year.
Rainfall in Constanţa in May
You can typically expect 9 days of rain this month, averaging around 45 mm (1.8 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Constanţa in May
If you're visiting Constanţa in May, expect perfect temperatures with highs of 21°C (70°F) and overnight lows of 14°C (57°F). Conditions are often most pleasant around the middle of the day. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Constanţa in May
Expect a lot of sunshine this month, with about 273 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Constanţa in May
May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.
Average water temperature in May
At 15°C (59°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Constanţa.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Constanţa's climate page.
Constanţa Temperature in May
Min Temperature
14°C (57°F)
Max Temperature
21°C (70°F)
Water Temperature
15°C (59°F)
Chance of Rain
31%
Precipitation
45 mm (1.8 in)
Rainy days
9 days
Humidity
81%
Windspeed
3 m/s (6 knots)
Sunshine
273 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Constanţa typically rise from around 19°C (66°F) at the start of May to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Constanţa in May
Browse day-by-day weather records for Constanţa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Constanţa historical weather extremes in May
According to our 50 years of weather records for Constanţa, the following extremes were recorded between 1976 and 2026.
- On May 14, 1989, temperatures climbed to 33°C (91°F), marking the warmest May day on record.
- The coldest May day was on May 3, 1987, with a maximum of 9°C (48°F).
- Nighttime temperatures dropped to 1°C (34°F) on May 4, 2000, marking the coldest May night on record.
Best Places in Romania in May
Find out more about the weather in Romania and which places have the best travel conditions in this month. See all of Romania in May →
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What to Wear in Constanţa in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 15°C (59°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Constanţa in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Romania, check out our Constanţa's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Constanţa climate overview or explore weather in Romania.
