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Forum posters name June as one of the best months to visit Lebanon overall, with average highs around 28C and lows around 21C - warm, dry and comfortable rather than the more intense heat of high summer. Public and private beaches along the coast, including around Byblos, are open from mid-May through mid-October, so June sits comfortably within that full beach season. Posters describe June through September broadly as prime time for sun, beaches, mountain escapes and cultural festivals - the Byblos Festival specifically draws visitors to one of the world's oldest continuously inhabited cities, with its souks and Crusader sea castle repeatedly named among the top sights in the country.

Forum posters cite average November highs in Beirut around 23-24C with lows in the mid-to-upper teens C, and nights that can feel cool thanks to the sea. Posters describe rain as genuinely variable through the month - often sunny with only a modest chance of light rain earlier on, but posters note that by mid-November rain becomes more frequent even as warm weather generally persists into December, with the tail end of the month typically mixing sunny and rainy days around 20C. Posters consistently recommend autumn layers - jeans, t-shirts, a light jacket and a sweater or two for cooler evenings. Posters are direct that November isn't the best month for beach time given the real chance of rain, wind and cooler temperatures. Posters generally rate November as mild and pleasant overall for a Beirut visit, with increasing odds of rain as the month progresses.

Forum posters consistently describe October temperatures in Beirut as neither hot nor cold, typically 20-25C on the coast and a cooler 15-20C in the mountains above 1,000m - a genuinely pleasant window for touring both the city and nearby highlands. Posters cite an old Lebanese saying that there's another summer between October and November, with September widely rated as reliably great and early November as the safer bet if guaranteed cooler weather matters more. Posters note that most private beaches south of Beirut close by mid-October, though some individual spots stay open into the shoulder season as long as conditions allow swimming. Posters generally recommend packing light for the city itself, with just a thin shawl for evenings, plus a summer jacket if venturing up into the mountains.

Beirut forum regulars call spring, April-May, one of the most pleasant stretches of the year — “near perfect weather,” “sunny days but nice and cool evenings,” with coastal readings in the high teens to high 20s°C. Beaches open for the season in early May, and posters point to it as the sweet spot for combining beach time with sightseeing at archaeological sites and in the mountains before summer's heat and crowds arrive. Rain has essentially wound down by this point in spring. Our record: 26.9°C days, 16.7°C nights, only 2.6 rain days and a 21.9°C sea — warm, dry and swimmable, matching the “near perfect” read almost exactly.

April is the forum's favourite season in Lebanon, and the reason is the mountains rather than the coast: it is the month for the archaeological sites — Baalbek, Byblos, the Jeita Grotto — with coastal temperatures around 22°C and rain on only a handful of days, while the mountains run nearer 10 to 15°C. The catch worth knowing before booking a beach hotel: Lebanon's public and private beaches are closed in April and do not open until June, running through to mid-October. Hotel pools stay open year-round. Expect a real spread between coast and altitude on the same day.