September weather forecast
Primorsko, Bulgaria

September in Primorsko signals the beginning of fall. The weather becomes considerably cooler than August, with the mercury falling to a more pleasant 24.8°C (76.6°F). However, autumn showers become prominent as the rainfall charts a steep rise. The sea continues to remain warm enough for swimming, although daylight hours start to lessen. The shift from September’s relatively balmy weather to the increasingly cool October becomes distinct.

Temperature

Primorsko's September weather shows a modest shift in high-temperatures, falling from August's 28.8°C (83.8°F) to a still moderately hot 24.8°C (76.6°F). Nightly temperatures drop to an average low of 16.7°C (62.1°F) in September.

Rainfall

In Primorsko, in September, 67mm (2.64") of precipitation is typically accumulated. Throughout the year, 576mm (22.68") of rain is accumulated.

Sea temperature

In September, the average sea temperature in Primorsko is 22.8°C (73°F).
Note: If cold is not your friend, swimming at 22.8°C (73°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of September in Primorsko, Bulgaria, sunrise is at 06:34 and sunset at 19:42. On the last day of the month, sunrise is at 07:05 and sunset at 18:52 EEST.