May weather forecastNessebar, Bulgaria
May
Weather in May
Nessebar experiences an undeniable shift towards summer in May. Weather patterns during this month illustrate an increase in daylight hours and a decrease in rainfall compared to earlier months. Notably warmer than its spring counterpart April, May sees an amplification in temperature and an even warmer sea surface. This month is ideal for sunbathing and enjoying the mild weather. As Nessebar proceeds further into the calendar year, the city's weather conditions in May exemplify warmer temperatures and elongated sunlight hours, heralding the start of the summer season.Temperature
Nessebar's transition into May is marked by a temperature shift, moving from a moderate 15°C (59°F) in April to a pleasant 20°C (68°F). The average temperature in Nessebar during May nights dips to a fresh 11°C (51.8°F).Rainfall
In Nessebar, in May, it is raining for 7 days, with typically 48mm (1.89") of accumulated precipitation. In Nessebar, Bulgaria, during the entire year, the rain falls for 76 days and collects up to 566mm (22.28") of precipitation.Sea temperature
In Nessebar, the average seawater temperature in May is 15°C (59°F).Note: When the surface water temperature is 15°C (59°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).
Daylight
The average length of the day in May in Nessebar, Bulgaria, is 14h and 38min.On the first day of the month, sunrise is at 06:02 and sunset at 20:09. On the last day of May, sunrise is at 05:34 and sunset at 20:39 EEST.
Sunshine
The average sunshine in May in Nessebar is 8h.UV index
In Nessebar, Bulgaria, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: During May, 7 as the daily maximum UV index converts into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Nessebar, Bulgaria
- Average high temperature in May: 20°C
The warmest month (with the highest average high temperature) is July (27°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in May: 11°C
The month with the highest average low temperature is July (17°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average rainfall in May
Nessebar, Bulgaria
- Average rainfall in May: 48mm
The wettest month (with the highest rainfall) is November (65mm).
The driest month (with the least rainfall) is August (34mm).
Average rainfall days in May
Nessebar, Bulgaria
- Average rainfall days in May: 7 days
The months with the highest number of rainy days are April and December (8 days).
The months with the least rainy days are August and September (4 days).
Average sea temperature in May
Nessebar, Bulgaria
- Average sea temperature in May: 15°C
The best month for swimming (with the highest average sea temperature) is August (24°C).
The coldest month (with the lowest average sea temperature) is February (7°C).
Average daylight in May /
Average sunshine in May
Nessebar, Bulgaria
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is December (Average sunshine: 2h).
Average UV index in May
Nessebar, Bulgaria
- Average UV index in May: 7
The month with the highest UV index is July (UV index 9).
The months with the lowest UV index are January and December (UV index 1).





