Can you swim in Bulgaria in September?

Yes — perfect swimming weather
Average sea
23°C
Feels
warm
Month
September

The short answer

The sea around Bulgaria averages 23°C in September. That is warm enough for relaxed all-day swimming without a wetsuit. Families, snorkellers and casual bathers will find conditions comfortable on most beaches.

Live conditions matter most

Monthly averages set expectations, but a specific beach today depends on wind, waves and local currents. Use the live map or any beach page to see right-now temperatures.

Top swimming beaches in Bulgaria