Sunny Beach Weather
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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Policyline weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Plan your Bulgarian Black Sea break around the live forecast above, as Sunny Beach’s summer season runs from late May to September. The resort sees reliably warm conditions, though sea breezes and occasional thunderstorms can shift the feel of the day.
Is it sunny and warm enough for a beach day?
Yes, from late May through September daytime highs typically reach the mid-to-high 20s Celsius, with July and August often peaking above 30°C. The live forecast above will show you today’s exact conditions, but generally the sunniest months are July and August, averaging 10–11 hours of sunshine daily. For a broader picture, check our UK weather hub for comparative conditions. If you’re planning ahead, many travellers look up the 21 day weather forecast Sunny Beach Bulgaria or Sunny Beach weather 30 days for a longer-range guide, though accuracy drops beyond 10–14 days.
What about sea temperature and evening conditions?
The Black Sea warms slowly, reaching a pleasant 23–26°C from mid-June to early September. Evenings stay warm in high summer, but a light jacket is useful for May and late September. For a detailed weekly view, check a dedicated Sunny Beach weather 14 days forecast from a reliable source like the 10 Day Weather Forecast UK page, which gives you a comparable outlook model.
What is the best month for Sunny Beach weather?
July and August offer the hottest, driest weather with sea temperatures at their peak. June and September are slightly cooler but still pleasant, with fewer crowds and lower prices.
How accurate is the 21 day weather forecast for Sunny Beach?
Forecasts beyond 10 days have low reliability for exact temperatures. Use a longer-range outlook, like a Sunny Beach weather 30 days guide, to spot broad trends rather than daily specifics.
Can I swim in the sea outside of summer?
May and October sea temperatures hover around 16–18°C, which many find too cool for comfortable swimming. The official season runs June–September for reliable beach conditions.