GPT-5.3-Codex vs GPT-5.6 Luna for travel planning

No one can know the exact weather in Corfu that far ahead—seasonal models can’t predict a specific day. What you can say: mid‑September is usually warm and fairly settled (often mid‑20s°C), with sea still warm, but occasional rain/thunder showers are possible. Practical wedding planning means booking a clear wet‑weather option now (covered terrace/indoor room/marquee and rain logistics). Start checking forecasts about 10–14 days out for trends; trust details mainly in the final 3–5 days.

No one can reliably know Corfu’s weather for a specific date next year: seasonal forecasts cannot predict wedding-day conditions. Historically, mid-September is warm and often sunny—roughly 26–28°C by day and 18–20°C at night—with a warm sea, though showers or thunderstorms are possible. Choose a venue with a genuinely usable wet-weather plan, including covered ceremony and reception spaces. Start checking forecasts about 10 days beforehand; they become meaningfully useful around 5–7 days out.