SeasonMapByblos (Jbeil) weather in September
Lebanon
September in Byblos: hot, dry — an excellent time to visit.
#3 of 12 months in Byblos · #82 of 1383 destinations to visit in September · comfort 93/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Byblos in September
No notes yet. Open Byblos on the map to add the first one.
Byblos climate normals — September
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Sea temperature | 29°C / 85°F | ♨️ bath-warm |
| Rainfall | 4 mm / 0.2 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 68% | 💧 humid |
| Dew point | 20°C / 69°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.4 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 61 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Byblos in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySwimming season, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Byblos's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherByblos's best weather comes in June, September and October — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Byblos in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Swimming season
15 Jun – 31 Oct · usuallySea warm enoughCrowdedThe pebble coves either side of the port are in use from mid-June, and the beach clubs south towards Amchit charge for a lounger from then. Late September is the quiet reward. Source ↗
Nearby, and something's on
Within 300 km of Byblos — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Byblos?
Byblos in September — FAQ
- Is September a good time to visit Byblos?
- September in Byblos: hot, dry — an excellent time to visit. It ranks #3 of 12 months for Byblos on SeasonMap's comfort score (93/100).
- What is the weather like in Byblos in September?
- In September, Byblos averages a daily high of 31°C and a low of 23.3°C, with about 4.3 mm of rain over roughly 1.2 rainy days.
- What is the air quality in Byblos in September?
- Byblos has a mean US Air Quality Index of about 61 in September.
Other months in Byblos
Compare Byblos in September
Warmer or cooler than Byblos in September
Similar destinations in Middle East — September
Within 300 km: Limassol's Limassol Wine Festival on 26 Sep – 4 Oct, and Dead Sea's Wadi Mujib water trails open on 1 Apr – 31 Oct.