Mamaia
Weather by month
Current –

Mamaia Weather in May

In Mamaia, May brings pleasant daytime temperatures around 21°C (70°F), with nights cooling to 14°C (57°F). Some rainfall is to be expected.

Rainfall in Mamaia in May

You can expect rain on roughly 9 days based on historical data, averaging 46 mm (1.8 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Mamaia in May

Mamaia in May is worth a visit. The temperature is excellent, with 21°C (70°F) during the day and 14°C (57°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Mamaia in May

The month enjoys around 273 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in Mamaia in May

Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in May

The water is 15°C (59°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Mamaia.

Mamaia 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
46 mm (1.8 in)
Rainy days
9 days
Humidity
81% *
Windspeed
3 m/s (6 knots) *
Sunshine
273 hours *
Percentage Sunshine
*
* Data from: Constanţa, Romania (4 KM, 2 Miles).

Mamaia Weather by Month

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

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Mamaia 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 Mamaia in May

Browse day-by-day weather records for Mamaia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Mamaia historical weather extremes in May

Our historical data for Mamaia spans 1976 to 2026, revealing these weather extremes.

  • The hottest May day on record in Mamaia reached 33°C (91°F) (May 14, 1989).
  • On May 3, 1987, Mamaia saw its coldest May day with temperatures maxing out at 9°C (48°F).
  • The lowest overnight temperature recorded in May was 1°C (34°F) (May 4, 2000).

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 Mamaia in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 15°C (59°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Mamaia 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

Mamaia 3-Day Forecast

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.