Constanţa
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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 excellent 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.

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

Constanţa Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Constanţa - and find the best time to visit.

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 records 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 →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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.

  • Cycling
    10/10
  • Walking
    10/10
  • Barbeque
    9/10
  • Camping
    10/10
  • Outdoor sports
    10/10

Constanţa 3-Day Forecast

More climate data for Constanţa

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.