Sunny Beach Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Sunny Beach, Burgas Province, Bulgaria. This average is based on long-term data collected between 1990 and 2020. Let’s explore the details to provide you with a complete overview.
Generally, Sunny Beach has a moderate amount of precipitation, averaging 653 mm of rain/snowfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 67 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, August, still receives a respectable 33 mm of rainfall.
October, the wettest month, has a maximum daytime temperature of 19°C. The city receives 205 hours of sunshine in this period. During the driest month August you can expect a temperature of 28°C. For more detailed insights into the city’s temperatures, visit our Sunny Beach Temperature page.
Annual Precipitation in Bulgaria
The map below shows the annual precipitation across Bulgaria. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Sunny Beach’s average annual precipitation is 653 mm. Let’s compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.
Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.
Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.
How is Precipitation Measured?
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Sea vs. Land Precipitation
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
For more detailed information about Sunny Beach’s weather, including sunshine hours, humidity levels, and temperature data, visit our Sunny Beach Climate page.