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 perfect, 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.
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 Mamaia's climate page.
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
*
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 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 →
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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.
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 Mamaia's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Mamaia climate overview or explore weather in Romania.
